Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Knoxville/Tri Cities, TN
Issued by NWS Knoxville/Tri Cities, TN
024
FNUS54 KMRX 211842
FWFMRX
Fire Weather Planning Forecast for East Tennessee...Southwest
Virginia...and Extreme Southwest North Carolina
National Weather Service Morristown TN
242 PM EDT Tue Apr 21 2026
.DISCUSSION...
...Low Afternoon Relative Humidity Wednesday and Thursday...
Dry and unseasonably warm conditions are expected through Friday. A
storm system will bring rain and possibly thunderstorm for Friday
evening through Saturday.
VAZ001-221945-
Lee-
Including the city of Rose Hill
242 PM EDT Tue Apr 21 2026
Tonight Wed Wed Night Thu
Cloud Cover Pcldy Mclear Mclear Mclear
Temp (24h trend) 45-50 (+11) 75-80 (+5) 48-53 77-82
RH % (24h trend) 87-92 (+26) 22-27 (-10) 84-89 25-30
RH Recovery Excellent Excellent
AM 20FT Wnd (mph) W 10 Lgt/Var
PM 20FT Wnd (mph) SW 10 W 10 W 7 SW 5
Transport Wnd (mph) W 9 W 22 NW 5 W 10
Mixing Hgt(ft-agl) 300 7800 8210
Vent Rate (mph-ft) 2700 171600 0 82100
Max Dispersion Early 6 Very Poor 137 Very Good4 Very Poor 65 Good
Max Dispersion Late 6 Very Poor 149 Very Good2 Very Poor 72 Good
Category Day 1 5 1 4
Max LVORI Early 3 4 3 4
Max LVORI Late 4 2 5 2
Precip Chance (%) 0 0 0 0
Precip Type None None None None
Precip Duration
Precip Amount 0.00 0.00 0.00 0.00
Precip Begin
Precip End
Chance of Thunder (%) 0 0 0 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.THURSDAY NIGHT...Mostly clear. Lows in the lower 50s. South
winds less than 10 mph.
.FRIDAY...Mostly sunny. Highs in the upper 70s. Minimum RH
39 percent. Southwest winds less than 10 mph.
.FRIDAY NIGHT...Mostly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the mid 50s. Southwest
winds less than 10 mph.
.SATURDAY...Showers and a chance of thunderstorms. Highs in the
lower 70s. Minimum RH 58 percent. West winds less than 10 mph.
.SATURDAY NIGHT...Partly cloudy with a chance of showers. Lows in
the lower 50s. North winds less than 10 mph.
.SUNDAY...Mostly sunny with a chance of showers. Highs in the mid
70s. Minimum RH 38 percent. North winds less than 10 mph.
.SUNDAY NIGHT...Partly cloudy with a slight chance of showers.
Lows in the lower 50s. East winds less than 10 mph.
.MONDAY...Mostly sunny with a chance of showers and a slight
chance of thunderstorms. Highs in the upper 70s. Minimum RH
45 percent. South winds less than 10 mph.
.MONDAY NIGHT...Mostly cloudy with showers likely and a chance of
thunderstorms. Lows in the mid 50s. South winds 5 to 10 mph.
.TUESDAY...Mostly sunny with a chance of showers and a slight
chance of thunderstorms. Highs in the lower 70s. Minimum RH
54 percent. Southwest winds 5 to 10 mph.
*The AGL Mixing Height is calculated from an average elevation for
the entire Forecast Zone and should only be used as a guide.
For a specific AGL Mixing Height a Spot Forecast will be needed.
$$
VAZ002-221945-
Wise-
Including the cities of Big Stone Gap, Norton, Wise, Coeburn,
Appalachia, and Pardee
242 PM EDT Tue Apr 21 2026
Tonight Wed Wed Night Thu
Cloud Cover Pcldy Mclear Mclear Mclear
Temp (24h trend) 48-53 (+14) 72-77 (+4) 50-55 74-79
RH % (24h trend) 69-74 (+13) 22-27 (-11) 76-81 28-33
RH Recovery Excellent Excellent
AM 20FT Wnd (mph) W 13 W 5
PM 20FT Wnd (mph) SW 11 W 12 W 9 W 6
Transport Wnd (mph) SW 14 W 24 W 7 W 12
Mixing Hgt(ft-agl) 160 7570 8370
Vent Rate (mph-ft) 2240 181680 0 100440
Max Dispersion Early 6 Very Poor 163 Very Good4 Very Poor 86 Good
Max Dispersion Late 6 Very Poor 167 Very Good3 Very Poor 86 Good
Category Day 1 5 1 4
Max LVORI Early 3 3 3 4
Max LVORI Late 3 1 4 2
Precip Chance (%) 0 0 0 0
Precip Type None None None None
Precip Duration
Precip Amount 0.00 0.00 0.00 0.00
Precip Begin
Precip End
Chance of Thunder (%) 0 0 0 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.THURSDAY NIGHT...Mostly clear. Lows in the mid 50s. Southwest
winds less than 10 mph.
.FRIDAY...Mostly sunny. Highs in the mid 70s. Minimum RH
40 percent. Southwest winds less than 10 mph.
.FRIDAY NIGHT...Partly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the mid 50s. Southwest
winds less than 10 mph.
.SATURDAY...Showers and a chance of thunderstorms. Highs around
70. Minimum RH 62 percent. West winds less than 10 mph.
.SATURDAY NIGHT...Partly cloudy with a chance of showers. Lows in
the lower 50s. North winds less than 10 mph.
.SUNDAY...Mostly sunny with a chance of showers. Highs in the
lower 70s. Minimum RH 41 percent. North winds less than 10 mph.
.SUNDAY NIGHT...Partly cloudy with a slight chance of showers.
Lows around 50. Southeast winds less than 10 mph.
.MONDAY...Mostly sunny with a chance of showers and a slight
chance of thunderstorms. Highs in the mid 70s. Minimum RH
44 percent. South winds 5 to 10 mph.
.MONDAY NIGHT...Mostly cloudy with showers likely and a slight
chance of thunderstorms. Lows in the mid 50s. South winds 5 to
15 mph.
.TUESDAY...Mostly sunny with showers likely and a slight chance
of thunderstorms. Highs in the lower 70s. Minimum RH 56 percent.
Southwest winds 5 to 10 mph.
*The AGL Mixing Height is calculated from an average elevation for
the entire Forecast Zone and should only be used as a guide.
For a specific AGL Mixing Height a Spot Forecast will be needed.
$$
VAZ005-221945-
Scott VA-
Including the city of Hiltons
242 PM EDT Tue Apr 21 2026
Tonight Wed Wed Night Thu
Cloud Cover Mclear Mclear Mclear Mclear
Temp (24h trend) 44-49 (+9) 75-80 (+5) 49-54 77-82
RH % (24h trend) 89-94 (+31) 23-28 (-11) 79-84 27-32
RH Recovery Excellent Excellent
AM 20FT Wnd (mph) W 12 SW 5
PM 20FT Wnd (mph) SW 11 W 11 W 8 SW 6
Transport Wnd (mph) W 8 W 22 W 3 W 12
Mixing Hgt(ft-agl) 220 7970 8110
Vent Rate (mph-ft) 1760 175340 0 97320
Max Dispersion Early 5 Very Poor 144 Very Good3 Very Poor 76 Good
Max Dispersion Late 4 Very Poor 157 Very Good2 Very Poor 83 Good
Category Day 1 5 1 4
Max LVORI Early 3 4 3 4
Max LVORI Late 4 2 4 2
Precip Chance (%) 0 0 0 0
Precip Type None None None None
Precip Duration
Precip Amount 0.00 0.00 0.00 0.00
Precip Begin
Precip End
Chance of Thunder (%) 0 0 0 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.THURSDAY NIGHT...Mostly clear. Lows in the lower 50s. Southwest
winds less than 10 mph.
.FRIDAY...Mostly sunny. Highs in the upper 70s. Minimum RH
38 percent. Southwest winds less than 10 mph.
.FRIDAY NIGHT...Partly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the upper 50s. Southwest
winds less than 10 mph.
.SATURDAY...Showers and a chance of thunderstorms. Highs in the
mid 70s. Minimum RH 61 percent. West winds less than 10 mph.
.SATURDAY NIGHT...Mostly cloudy with a chance of showers. Lows in
the lower 50s. North winds less than 10 mph.
.SUNDAY...Mostly sunny with a chance of showers. Highs in the
upper 70s. Minimum RH 38 percent. Northeast winds less than
10 mph.
.SUNDAY NIGHT...Partly cloudy with a slight chance of showers.
Lows in the lower 50s. East winds less than 10 mph.
.MONDAY...Mostly sunny with a chance of showers and a slight
chance of thunderstorms. Highs in the upper 70s. Minimum RH
43 percent. South winds less than 10 mph.
.MONDAY NIGHT...Mostly cloudy with showers likely and a slight
chance of thunderstorms. Lows in the upper 50s. South winds 5 to
10 mph.
.TUESDAY...Mostly sunny with showers likely and a slight chance
of thunderstorms. Highs in the mid 70s. Minimum RH 56 percent.
Southwest winds 5 to 10 mph.
*The AGL Mixing Height is calculated from an average elevation for
the entire Forecast Zone and should only be used as a guide.
For a specific AGL Mixing Height a Spot Forecast will be needed.
$$
VAZ006-221945-
Russell-
Including the cities of Hansonville, Lebanon, Dye, Castlewood,
Honaker, and Rosedale
242 PM EDT Tue Apr 21 2026
Tonight Wed Wed Night Thu
Cloud Cover Mclear Mclear Mclear Mclear
Temp (24h trend) 44-49 (+11) 72-77 (+5) 49-54 74-79
RH % (24h trend) 85-90 (+29) 23-28 (-9) 76-81 27-32
RH Recovery Excellent Excellent
AM 20FT Wnd (mph) W 16 SW 7
PM 20FT Wnd (mph) SW 13 W 14 W 11 W 6
Transport Wnd (mph) SW 12 W 25 W 6 W 13
Mixing Hgt(ft-agl) 220 8030 8000
Vent Rate (mph-ft) 2640 200750 0 104000
Max Dispersion Early 5 Very Poor 173 Very Good4 Very Poor 87 Good
Max Dispersion Late 5 Very Poor 181 Very Good2 Very Poor 87 Good
Category Day 1 5 1 4
Max LVORI Early 3 3 3 4
Max LVORI Late 3 2 4 2
Precip Chance (%) 0 0 0 0
Precip Type None None None None
Precip Duration
Precip Amount 0.00 0.00 0.00 0.00
Precip Begin
Precip End
Chance of Thunder (%) 0 0 0 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.THURSDAY NIGHT...Mostly clear. Lows in the mid 50s. South winds
less than 10 mph.
.FRIDAY...Mostly sunny. Highs in the mid 70s. Minimum RH
38 percent. Southwest winds less than 10 mph.
.FRIDAY NIGHT...Partly cloudy with a chance of showers. Lows in
the upper 50s. Southwest winds less than 10 mph.
.SATURDAY...Showers and a chance of thunderstorms. Highs in the
lower 70s. Minimum RH 62 percent. West winds less than 10 mph.
.SATURDAY NIGHT...Mostly cloudy with a chance of showers. Lows in
the lower 50s. North winds less than 10 mph.
.SUNDAY...Mostly sunny with a chance of showers. Highs in the
lower 70s. Minimum RH 40 percent. North winds less than 10 mph.
.SUNDAY NIGHT...Partly cloudy with a slight chance of showers.
Lows around 50. East winds less than 10 mph.
.MONDAY...Mostly sunny with a chance of showers and a slight
chance of thunderstorms. Highs in the mid 70s. Minimum RH
42 percent. South winds 5 to 10 mph.
.MONDAY NIGHT...Mostly cloudy with showers likely and a slight
chance of thunderstorms. Lows in the mid 50s. South winds 5 to
10 mph.
.TUESDAY...Partly sunny with showers likely and a slight chance
of thunderstorms. Highs in the lower 70s. Minimum RH 58 percent.
Southwest winds 5 to 10 mph.
*The AGL Mixing Height is calculated from an average elevation for
the entire Forecast Zone and should only be used as a guide.
For a specific AGL Mixing Height a Spot Forecast will be needed.
$$
VAZ008-221945-
Washington VA-
Including the cities of Benhams, Bristol VA, and Abingdon
242 PM EDT Tue Apr 21 2026
Tonight Wed Wed Night Thu
Cloud Cover Mclear Mclear Mclear Mclear
Temp (24h trend) 44-49 (+12) 72-77 (+5) 47-52 75-80
RH % (24h trend) 79-84 (+20) 25-30 (-8) 80-85 27-32
RH Recovery Excellent Excellent
AM 20FT Wnd (mph) W 14 SW 6
PM 20FT Wnd (mph) SW 11 W 13 W 10 W 7
Transport Wnd (mph) SW 10 W 24 SW 5 W 13
Mixing Hgt(ft-agl) 290 8110 7890
Vent Rate (mph-ft) 2900 194640 0 102570
Max Dispersion Early 5 Very Poor 160 Very Good5 Very Poor 86 Good
Max Dispersion Late 6 Very Poor 178 Very Good3 Very Poor 90 Good
Category Day 1 5 1 4
Max LVORI Early 3 3 3 4
Max LVORI Late 3 2 4 2
Precip Chance (%) 0 0 0 0
Precip Type None None None None
Precip Duration
Precip Amount 0.00 0.00 0.00 0.00
Precip Begin
Precip End
Chance of Thunder (%) 0 0 0 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.THURSDAY NIGHT...Mostly clear. Lows in the lower 50s. South
winds less than 10 mph.
.FRIDAY...Mostly sunny. Highs in the upper 70s. Minimum RH
39 percent. Southwest winds less than 10 mph.
.FRIDAY NIGHT...Partly cloudy with a chance of showers. Lows in
the mid 50s. Southwest winds less than 10 mph.
.SATURDAY...Showers and a chance of thunderstorms. Highs in the
lower 70s. Minimum RH 63 percent. West winds less than 10 mph.
.SATURDAY NIGHT...Mostly cloudy with a chance of showers. Lows in
the lower 50s. Northwest winds less than 10 mph.
.SUNDAY...Mostly sunny with a chance of showers. Highs in the mid
70s. Minimum RH 40 percent. North winds less than 10 mph.
.SUNDAY NIGHT...Partly cloudy with a slight chance of showers.
Lows in the upper 40s. East winds less than 10 mph.
.MONDAY...Mostly sunny with a chance of showers and a slight
chance of thunderstorms. Highs in the mid 70s. Minimum RH
43 percent. Southeast winds 5 to 10 mph.
.MONDAY NIGHT...Partly cloudy with showers likely and a slight
chance of thunderstorms. Lows in the mid 50s. South winds 5 to
10 mph.
.TUESDAY...Partly sunny with showers likely and a slight chance
of thunderstorms. Highs in the lower 70s. Minimum RH 59 percent.
Southwest winds 5 to 10 mph.
*The AGL Mixing Height is calculated from an average elevation for
the entire Forecast Zone and should only be used as a guide.
For a specific AGL Mixing Height a Spot Forecast will be needed.
$$
TNZ018-221945-
Johnson-
Including the cities of Doeville, Mountain City, Neva,
Shady Valley, Trade, and Laurel Bloomery
242 PM EDT Tue Apr 21 2026
Tonight Wed Wed Night Thu
Cloud Cover Mclear Mclear Mclear Mclear
Temp (24h trend) 45-50 (+14) 70-75 (+5) 46-51 73-78
RH % (24h trend) 71-76 (+11) 25-30 (-5) 74-79 28-33
RH Recovery Excellent Excellent
AM 20FT Wnd (mph) W 12 G22 W 6
PM 20FT Wnd (mph) SW 8 W 12 G21 W 8 W 5
Transport Wnd (mph) SW 9 W 25 W 7 W 15
Mixing Hgt(ft-agl) 170 7250 7120
Vent Rate (mph-ft) 1530 181250 0 106800
Max Dispersion Early 7 Poor 146 Very Good6 Very Poor 91 Good
Max Dispersion Late 9 Poor 162 Very Good4 Very Poor 94 Good
Category Day 1 5 1 4
Max LVORI Early 3 3 3 3
Max LVORI Late 3 1 4 2
Precip Chance (%) 0 0 0 0
Precip Type None None None None
Precip Duration
Precip Amount 0.00 0.00 0.00 0.00
Precip Begin
Precip End
Chance of Thunder (%) 0 0 0 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.THURSDAY NIGHT...Mostly clear. Lows around 50. Southwest winds
less than 10 mph.
.FRIDAY...Sunny with a slight chance of showers. Highs in the mid
70s. Minimum RH 37 percent. West winds less than 10 mph.
.FRIDAY NIGHT...Partly cloudy with a chance of showers. Lows in
the lower 50s. Southwest winds less than 10 mph.
.SATURDAY...Showers and a chance of thunderstorms. Highs in the
lower 70s. Minimum RH 61 percent. West winds less than 10 mph.
.SATURDAY NIGHT...Mostly cloudy with a chance of showers. Lows
around 50. Northwest winds less than 10 mph.
.SUNDAY...Mostly sunny with a chance of showers. Highs in the
lower 70s. Minimum RH 40 percent. North winds less than 10 mph.
.SUNDAY NIGHT...Partly cloudy with a slight chance of showers.
Lows in the upper 40s. Southeast winds less than 10 mph.
.MONDAY...Mostly sunny with a chance of showers and a slight
chance of thunderstorms. Highs in the lower 70s. Minimum RH
43 percent. Southeast winds less than 10 mph.
.MONDAY NIGHT...Partly cloudy with showers likely and a slight
chance of thunderstorms. Lows in the lower 50s. South winds 5 to
10 mph.
.TUESDAY...Partly sunny with showers likely and a slight chance
of thunderstorms. Highs around 70. Minimum RH 57 percent.
Southwest winds less than 10 mph.
*The AGL Mixing Height is calculated from an average elevation for
the entire Forecast Zone and should only be used as a guide.
For a specific AGL Mixing Height a Spot Forecast will be needed.
$$
TNZ047-221945-
Southeast Carter-
Including the city of Hampton
242 PM EDT Tue Apr 21 2026
Tonight Wed Wed Night Thu
Cloud Cover Mclear Mclear Mclear Mclear
Temp (24h trend) 46-51 (+12) 69-74 (+4) 48-53 71-76
RH % (24h trend) 71-76 (+9) 26-31 (-5) 71-76 29-34
RH Recovery Excellent Excellent
AM 20FT Wnd (mph) W 16 W 7
PM 20FT Wnd (mph) SW 9 W 14 W 11 W 7
Transport Wnd (mph) SW 8 W 23 W 8 W 13
Mixing Hgt(ft-agl) 120 6940 7040
Vent Rate (mph-ft) 960 159620 0 91520
Max Dispersion Early 7 Poor 141 Very Good5 Very Poor 84 Good
Max Dispersion Late 8 Poor 147 Very Good3 Very Poor 80 Good
Category Day 1 5 1 4
Max LVORI Early 2 3 3 3
Max LVORI Late 3 1 4 2
Precip Chance (%) 0 0 0 0
Precip Type None None None None
Precip Duration
Precip Amount 0.00 0.00 0.00 0.00
Precip Begin
Precip End
Chance of Thunder (%) 0 0 0 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.THURSDAY NIGHT...Mostly clear. Lows in the lower 50s. Southwest
winds less than 10 mph.
.FRIDAY...Mostly sunny with a slight chance of showers. Highs in
the mid 70s. Minimum RH 38 percent. West winds less than 10 mph.
.FRIDAY NIGHT...Partly cloudy with a slight chance of showers.
Lows in the mid 50s. Southwest winds less than 10 mph.
.SATURDAY...Showers and a chance of thunderstorms. Highs around
70. Minimum RH 65 percent. West winds less than 10 mph.
.SATURDAY NIGHT...Mostly cloudy with a chance of showers. Lows in
the lower 50s. Northwest winds less than 10 mph.
.SUNDAY...Mostly sunny with a chance of showers. Highs in the
lower 70s. Minimum RH 42 percent. North winds less than 10 mph.
.SUNDAY NIGHT...Partly cloudy with a slight chance of showers.
Lows in the upper 40s. Southeast winds 5 to 10 mph.
.MONDAY...Mostly sunny with a chance of showers and a slight
chance of thunderstorms. Highs around 70. Minimum RH 47 percent.
South winds 5 to 10 mph.
.MONDAY NIGHT...Mostly cloudy with showers likely and a slight
chance of thunderstorms. Lows in the lower 50s. South winds 5 to
10 mph.
.TUESDAY...Partly sunny with showers likely and a slight chance
of thunderstorms. Highs around 70. Minimum RH 58 percent.
Southwest winds 5 to 10 mph.
*The AGL Mixing Height is calculated from an average elevation for
the entire Forecast Zone and should only be used as a guide.
For a specific AGL Mixing Height a Spot Forecast will be needed.
$$
TNZ045-221945-
Unicoi-
Including the cities of Erwin, Unicoi, and Limestone Cove
242 PM EDT Tue Apr 21 2026
Tonight Wed Wed Night Thu
Cloud Cover Mclear Mclear Mclear Mclear
Temp (24h trend) 47-52 (+10) 70-75 (+4) 51-56 72-77
RH % (24h trend) 67-72 (+8) 25-30 (-5) 67-72 29-34
RH Recovery Excellent Excellent
AM 20FT Wnd (mph) W 13 G21 W 6
PM 20FT Wnd (mph) SW 10 W 11 G20 SW 8 NW 5
Transport Wnd (mph) S 9 W 21 W 7 W 13
Mixing Hgt(ft-agl) 100 6920 7320
Vent Rate (mph-ft) 900 145320 0 95160
Max Dispersion Early 5 Very Poor 128 Very Good4 Very Poor 81 Good
Max Dispersion Late 5 Very Poor 135 Very Good3 Very Poor 79 Good
Category Day 1 5 1 4
Max LVORI Early 2 3 3 3
Max LVORI Late 3 1 3 2
Precip Chance (%) 0 0 0 0
Precip Type None None None None
Precip Duration
Precip Amount 0.00 0.00 0.00 0.00
Precip Begin
Precip End
Chance of Thunder (%) 0 0 0 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.THURSDAY NIGHT...Mostly clear. Lows in the mid 50s. South winds
less than 10 mph.
.FRIDAY...Mostly sunny with a slight chance of showers. Highs in
the mid 70s. Minimum RH 38 percent. West winds less than 10 mph.
.FRIDAY NIGHT...Partly cloudy with a chance of showers. Lows in
the upper 50s. South winds less than 10 mph.
.SATURDAY...Showers and a chance of thunderstorms. Highs around
70. Minimum RH 65 percent. West winds less than 10 mph.
.SATURDAY NIGHT...Mostly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the mid 50s. West winds
less than 10 mph.
.SUNDAY...Partly sunny with a chance of showers and a slight
chance of thunderstorms. Highs in the lower 70s. Minimum RH
42 percent. North winds less than 10 mph.
.SUNDAY NIGHT...Partly cloudy with a slight chance of showers.
Lows in the lower 50s. Southeast winds less than 10 mph.
.MONDAY...Mostly sunny with a chance of showers and a slight
chance of thunderstorms. Highs in the lower 70s. Minimum RH
44 percent. South winds 5 to 10 mph.
.MONDAY NIGHT...Mostly cloudy with showers likely and a slight
chance of thunderstorms. Lows in the mid 50s. South winds 5 to
10 mph.
.TUESDAY...Partly sunny with showers likely and a slight chance
of thunderstorms. Highs in the lower 70s. Minimum RH 57 percent.
Southwest winds 5 to 10 mph.
*The AGL Mixing Height is calculated from an average elevation for
the entire Forecast Zone and should only be used as a guide.
For a specific AGL Mixing Height a Spot Forecast will be needed.
$$
TNZ043-221945-
Southeast Greene-
Including the city of Cedar Creek
242 PM EDT Tue Apr 21 2026
Tonight Wed Wed Night Thu
Cloud Cover Pcldy Mclear Mclear Mclear
Temp (24h trend) 47-52 (+9) 71-76 (+4) 50-55 73-78
RH % (24h trend) 70-75 (+6) 22-27 (-8) 70-75 26-31
RH Recovery Excellent Excellent
AM 20FT Wnd (mph) W 13 G22 W 7
PM 20FT Wnd (mph) S 11 W 12 G22 SW 8 NW 6
Transport Wnd (mph) SW 7 W 21 W 8 W 10
Mixing Hgt(ft-agl) 6850 7350
Vent Rate (mph-ft) 0 143850 0 73500
Max Dispersion Early 3 Very Poor 118 Very Good2 Very Poor 64 Good
Max Dispersion Late 3 Very Poor 124 Very Good1 Very Poor 69 Good
Category Day 1 5 1 4
Max LVORI Early 2 3 3 3
Max LVORI Late 3 2 4 2
Precip Chance (%) 0 0 0 0
Precip Type None None None None
Precip Duration
Precip Amount 0.00 0.00 0.00 0.00
Precip Begin
Precip End
Chance of Thunder (%) 0 0 0 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.THURSDAY NIGHT...Partly cloudy. Lows in the mid 50s. South winds
less than 10 mph.
.FRIDAY...Mostly sunny. Highs in the mid 70s. Minimum RH
38 percent. West winds less than 10 mph.
.FRIDAY NIGHT...Partly cloudy with a chance of showers. Lows in
the upper 50s. South winds less than 10 mph.
.SATURDAY...Showers and a chance of thunderstorms. Highs around
70. Minimum RH 65 percent. West winds less than 10 mph.
.SATURDAY NIGHT...Mostly cloudy with a chance of showers. Lows in
the mid 50s. Southwest winds less than 10 mph.
.SUNDAY...Partly sunny with a chance of showers and a slight
chance of thunderstorms. Highs in the lower 70s. Minimum RH
43 percent. North winds less than 10 mph.
.SUNDAY NIGHT...Partly cloudy with a slight chance of showers.
Lows in the lower 50s. Southeast winds 5 to 10 mph.
.MONDAY...Partly sunny with a chance of showers and a slight
chance of thunderstorms. Highs in the lower 70s. Minimum RH
44 percent. Southeast winds 5 to 10 mph.
.MONDAY NIGHT...Mostly cloudy with showers likely and a slight
chance of thunderstorms. Lows in the upper 50s. Southeast winds
5 to 10 mph.
.TUESDAY...Partly sunny with showers likely and a slight chance
of thunderstorms. Highs in the lower 70s. Minimum RH 56 percent.
Southwest winds 5 to 10 mph.
*The AGL Mixing Height is calculated from an average elevation for
the entire Forecast Zone and should only be used as a guide.
For a specific AGL Mixing Height a Spot Forecast will be needed.
$$
TNZ041-221945-
Cocke Smoky Mountains-
Including the city of Hartford
242 PM EDT Tue Apr 21 2026
Tonight Wed Wed Night Thu
Cloud Cover Pcldy Mclear Mclear Mclear
Temp (24h trend) 49-54 (+9) 72-77 (+4) 52-57 74-79
RH % (24h trend) 68-73 (+5) 22-27 (-8) 67-72 26-31
RH Recovery Excellent Excellent
AM 20FT Wnd (mph) W 17 W 7
PM 20FT Wnd (mph) S 12 W 15 SW 8 NW 6
Transport Wnd (mph) SW 7 W 20 SW 6 W 10
Mixing Hgt(ft-agl) 170 7550 7970
Vent Rate (mph-ft) 1190 151000 0 79700
Max Dispersion Early 8 Poor 124 Very Good5 Very Poor 71 Good
Max Dispersion Late 8 Poor 130 Very Good4 Very Poor 74 Good
Category Day 1 5 1 4
Max LVORI Early 2 2 2 3
Max LVORI Late 3 2 3 2
Precip Chance (%) 0 0 0 0
Precip Type None None None None
Precip Duration
Precip Amount 0.00 0.00 0.00 0.00
Precip Begin
Precip End
Chance of Thunder (%) 0 0 0 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.THURSDAY NIGHT...Mostly clear. Lows in the mid 50s. South winds
less than 10 mph.
.FRIDAY...Mostly sunny. Highs in the mid 70s. Minimum RH
39 percent. West winds less than 10 mph.
.FRIDAY NIGHT...Partly cloudy with a chance of showers. Lows in
the upper 50s. South winds less than 10 mph.
.SATURDAY...Showers and a chance of thunderstorms. Highs in the
lower 70s. Minimum RH 65 percent. West winds less than 10 mph.
.SATURDAY NIGHT...Mostly cloudy with a chance of showers. Lows in
the mid 50s. Southwest winds less than 10 mph.
.SUNDAY...Partly sunny with a chance of showers and a slight
chance of thunderstorms. Highs in the mid 70s. Minimum RH
43 percent. North winds less than 10 mph.
.SUNDAY NIGHT...Mostly cloudy with a slight chance of showers.
Lows in the lower 50s. Southeast winds 5 to 10 mph.
.MONDAY...Partly sunny with a chance of showers and a slight
chance of thunderstorms. Highs in the mid 70s. Minimum RH
44 percent. South winds 5 to 10 mph.
.MONDAY NIGHT...Mostly cloudy with showers likely and a slight
chance of thunderstorms. Lows in the upper 50s. South winds 5 to
10 mph.
.TUESDAY...Mostly sunny with showers likely and a slight chance
of thunderstorms. Highs in the lower 70s. Minimum RH 54 percent.
Southwest winds 5 to 10 mph.
*The AGL Mixing Height is calculated from an average elevation for
the entire Forecast Zone and should only be used as a guide.
For a specific AGL Mixing Height a Spot Forecast will be needed.
$$
TNZ074-221945-
Sevier Smoky Mountains-
Including the cities of Elkmont and Gatlinburg
242 PM EDT Tue Apr 21 2026
Tonight Wed Wed Night Thu
Cloud Cover Pcldy Clear Mclear Mclear
Temp (24h trend) 48-53 (+8) 70-75 (+4) 51-56 71-76
RH % (24h trend) 67-72 (+5) 23-28 (-8) 65-70 27-32
RH Recovery Excellent Excellent
AM 20FT Wnd (mph) W 14 G22 W 8
PM 20FT Wnd (mph) SW 11 W 14 SW 8 W 7
Transport Wnd (mph) SW 8 W 17 W 7 SW 9
Mixing Hgt(ft-agl) 7220 7240
Vent Rate (mph-ft) 0 122740 0 65160
Max Dispersion Early 4 Very Poor 105 Very Good2 Very Poor 57 Gen Good
Max Dispersion Late 4 Very Poor 110 Very Good2 Very Poor 59 Gen Good
Category Day 1 5 1 4
Max LVORI Early 2 2 2 3
Max LVORI Late 2 1 3 2
Precip Chance (%) 0 0 0 0
Precip Type None None None None
Precip Duration
Precip Amount 0.00 0.00 0.00 0.00
Precip Begin
Precip End
Chance of Thunder (%) 0 0 0 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.THURSDAY NIGHT...Mostly clear. Lows in the mid 50s. South winds
less than 10 mph.
.FRIDAY...Mostly sunny with a slight chance of showers. Highs in
the lower 70s. Minimum RH 42 percent. Southwest winds less than
10 mph.
.FRIDAY NIGHT...Mostly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the mid 50s. South winds
less than 10 mph.
.SATURDAY...Showers and a chance of thunderstorms. Highs in the
upper 60s. Minimum RH 67 percent. West winds less than 10 mph.
.SATURDAY NIGHT...Mostly cloudy with a chance of showers. Lows in
the lower 50s. East winds less than 10 mph.
.SUNDAY...Partly sunny with a chance of showers and a slight
chance of thunderstorms. Highs in the lower 70s. Minimum RH
46 percent. North winds less than 10 mph.
.SUNDAY NIGHT...Mostly cloudy with a chance of showers. Lows in
the lower 50s. Southeast winds 5 to 10 mph.
.MONDAY...Partly sunny with a chance of showers and a slight
chance of thunderstorms. Highs in the lower 70s. Minimum RH
49 percent. South winds 5 to 10 mph.
.MONDAY NIGHT...Mostly cloudy with showers likely and a slight
chance of thunderstorms. Lows in the mid 50s. South winds 5 to
15 mph.
.TUESDAY...Mostly sunny with showers likely and a slight chance
of thunderstorms. Highs around 70. Minimum RH 56 percent.
Southwest winds 5 to 10 mph.
*The AGL Mixing Height is calculated from an average elevation for
the entire Forecast Zone and should only be used as a guide.
For a specific AGL Mixing Height a Spot Forecast will be needed.
$$
TNZ072-221945-
Blount Smoky Mountains-
Including the city of Cades Cove
242 PM EDT Tue Apr 21 2026
Tonight Wed Wed Night Thu
Cloud Cover Pcldy Mclear Mclear Mclear
Temp (24h trend) 51-56 (+7) 75-80 (+4) 54-59 76-81
RH % (24h trend) 64-69 (+4) 23-28 (-6) 63-68 26-31
RH Recovery Excellent Excellent
AM 20FT Wnd (mph) W 11 SW 6
PM 20FT Wnd (mph) S 11 W 11 S 6 W 6
Transport Wnd (mph) SW 8 W 16 S 5 SW 9
Mixing Hgt(ft-agl) 200 7970 8100
Vent Rate (mph-ft) 1600 127520 0 72900
Max Dispersion Early 7 Poor 102 Very Good3 Very Poor 57 Gen Good
Max Dispersion Late 7 Poor 111 Very Good3 Very Poor 61 Good
Category Day 1 5 1 4
Max LVORI Early 2 3 2 3
Max LVORI Late 2 2 3 2
Precip Chance (%) 0 0 0 0
Precip Type None None None None
Precip Duration
Precip Amount 0.00 0.00 0.00 0.00
Precip Begin
Precip End
Chance of Thunder (%) 0 0 0 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.THURSDAY NIGHT...Mostly clear. Lows in the upper 50s. South
winds less than 10 mph.
.FRIDAY...Mostly sunny with a slight chance of showers. Highs in
the upper 70s. Minimum RH 38 percent. Southwest winds less than
10 mph.
.FRIDAY NIGHT...Mostly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the upper 50s. South
winds less than 10 mph.
.SATURDAY...Showers and a chance of thunderstorms. Highs in the
lower 70s. Minimum RH 66 percent. Southwest winds less than
10 mph.
.SATURDAY NIGHT...Partly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the mid 50s. East winds
less than 10 mph.
.SUNDAY...Partly sunny with a chance of showers and a slight
chance of thunderstorms. Highs in the mid 70s. Minimum RH
45 percent. North winds less than 10 mph.
.SUNDAY NIGHT...Mostly cloudy with a slight chance of showers.
Lows in the mid 50s. Southeast winds 5 to 10 mph.
.MONDAY...Partly sunny with a chance of showers and a slight
chance of thunderstorms. Highs in the upper 70s. Minimum RH
46 percent. South winds 5 to 10 mph.
.MONDAY NIGHT...Mostly cloudy with showers likely and a chance of
thunderstorms. Lows in the upper 50s. South winds 5 to 10 mph.
.TUESDAY...Mostly sunny with showers likely and a slight chance
of thunderstorms. Highs in the mid 70s. Minimum RH 53 percent.
Southwest winds 5 to 10 mph.
*The AGL Mixing Height is calculated from an average elevation for
the entire Forecast Zone and should only be used as a guide.
For a specific AGL Mixing Height a Spot Forecast will be needed.
$$
TNZ087-221945-
Southeast Monroe-
Including the cities of Citico and Coker Creek
242 PM EDT Tue Apr 21 2026
Tonight Wed Wed Night Thu
Cloud Cover Pcldy Mclear Mclear Mclear
Temp (24h trend) 49-54 (+5) 75-80 (+4) 52-57 76-81
RH % (24h trend) 66-71 (+1) 21-26 (-6) 65-70 23-28
RH Recovery Excellent Excellent
AM 20FT Wnd (mph) SW 8 SW 6
PM 20FT Wnd (mph) S 8 W 8 S 5 SW 5
Transport Wnd (mph) S 8 W 14 SE 5 SW 8
Mixing Hgt(ft-agl) 110 8250 8740
Vent Rate (mph-ft) 880 115500 0 69920
Max Dispersion Early 4 Very Poor 94 Good 3 Very Poor 59 Gen Good
Max Dispersion Late 4 Very Poor 101 Very Good2 Very Poor 63 Good
Category Day 1 4 1 4
Max LVORI Early 2 3 3 3
Max LVORI Late 3 2 3 2
Precip Chance (%) 0 0 0 0
Precip Type None None None None
Precip Duration
Precip Amount 0.00 0.00 0.00 0.00
Precip Begin
Precip End
Chance of Thunder (%) 0 0 0 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.THURSDAY NIGHT...Mostly clear. Lows in the mid 50s. South winds
less than 10 mph.
.FRIDAY...Mostly sunny. Highs in the upper 70s. Minimum RH
37 percent. Southwest winds less than 10 mph.
.FRIDAY NIGHT...Partly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the upper 50s. South
winds less than 10 mph.
.SATURDAY...Showers and a chance of thunderstorms. Highs in the
lower 70s. Minimum RH 66 percent. Southwest winds less than
10 mph.
.SATURDAY NIGHT...Partly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the mid 50s. Northeast
winds less than 10 mph.
.SUNDAY...Partly sunny with a chance of showers and a slight
chance of thunderstorms. Highs in the mid 70s. Minimum RH
44 percent. North winds less than 10 mph.
.SUNDAY NIGHT...Mostly cloudy with a slight chance of showers.
Lows in the mid 50s. Southeast winds 5 to 10 mph.
.MONDAY...Partly sunny with a chance of showers and a slight
chance of thunderstorms. Highs in the mid 70s. Minimum RH
46 percent. South winds 5 to 10 mph.
.MONDAY NIGHT...Mostly cloudy with showers likely and a chance of
thunderstorms. Lows in the upper 50s. South winds 5 to 10 mph.
.TUESDAY...Mostly sunny with a chance of showers and a slight
chance of thunderstorms. Highs in the mid 70s. Minimum RH
53 percent. Southwest winds 5 to 10 mph.
*The AGL Mixing Height is calculated from an average elevation for
the entire Forecast Zone and should only be used as a guide.
For a specific AGL Mixing Height a Spot Forecast will be needed.
$$
TNZ102-221945-
East Polk-
Including the cities of Big Frog Mountain, Ducktown,
and Turtletown
242 PM EDT Tue Apr 21 2026
Tonight Wed Wed Night Thu
Cloud Cover Pcldy Mclear Mclear Mclear
Temp (24h trend) 47-52 (+5) 77-82 (+3) 50-55 78-83
RH % (24h trend) 75-80 (+2) 21-26 (-4) 76-81 22-27
RH Recovery Excellent Excellent
AM 20FT Wnd (mph) SW 8 S 6
PM 20FT Wnd (mph) S 10 W 8 SW 6 SW 6
Transport Wnd (mph) S 8 W 13 SE 5 SW 8
Mixing Hgt(ft-agl) 170 8780 9530
Vent Rate (mph-ft) 1360 114140 0 76240
Max Dispersion Early 3 Very Poor 91 Good 3 Very Poor 51 Gen Good
Max Dispersion Late 3 Very Poor 101 Very Good1 Very Poor 67 Good
Category Day 1 5 1 4
Max LVORI Early 3 3 3 3
Max LVORI Late 3 2 4 2
Precip Chance (%) 0 0 0 0
Precip Type None None None None
Precip Duration
Precip Amount 0.00 0.00 0.00 0.00
Precip Begin
Precip End
Chance of Thunder (%) 0 0 0 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.THURSDAY NIGHT...Mostly clear. Lows in the mid 50s. South winds
less than 10 mph.
.FRIDAY...Mostly sunny. Highs in the lower 80s. Minimum RH
35 percent. Southwest winds less than 10 mph.
.FRIDAY NIGHT...Partly cloudy with a chance of showers and
thunderstorms. Lows in the upper 50s. South winds less than
10 mph.
.SATURDAY...Showers and a chance of thunderstorms. Highs in the
lower 70s. Minimum RH 63 percent. Southwest winds less than
10 mph.
.SATURDAY NIGHT...Mostly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the mid 50s. Northeast
winds less than 10 mph.
.SUNDAY...Partly sunny with a chance of showers and a slight
chance of thunderstorms. Highs in the upper 70s. Minimum RH
41 percent. North winds less than 10 mph.
.SUNDAY NIGHT...Mostly cloudy with a slight chance of showers.
Lows in the mid 50s. Southeast winds less than 10 mph.
.MONDAY...Partly sunny with a chance of showers and a slight
chance of thunderstorms. Highs in the upper 70s. Minimum RH
45 percent. South winds 5 to 10 mph.
.MONDAY NIGHT...Mostly cloudy with showers likely and a chance of
thunderstorms. Lows in the upper 50s. South winds 5 to 10 mph.
.TUESDAY...Mostly sunny with a chance of showers and a slight
chance of thunderstorms. Highs in the upper 70s. Minimum RH
50 percent. Southwest winds 5 to 10 mph.
*The AGL Mixing Height is calculated from an average elevation for
the entire Forecast Zone and should only be used as a guide.
For a specific AGL Mixing Height a Spot Forecast will be needed.
$$
NCZ060-221945-
Cherokee-
Including the cities of Andrews, Marble, Topton, Hiawasse Dam,
Murphy, Unaka, and Violet
242 PM EDT Tue Apr 21 2026
Tonight Wed Wed Night Thu
Cloud Cover Pcldy Mclear Mclear Mclear
Temp (24h trend) 44-49 (+4) 76-81 (+3) 48-53 77-82
RH % (24h trend) 80-85 (+5) 19-24 (-6) 79-84 21-26
RH Recovery Excellent Excellent
AM 20FT Wnd (mph) W 8 SW 5
PM 20FT Wnd (mph) S 6 W 8 Lgt/Var Lgt/Var
Transport Wnd (mph) S 7 W 13 E 3 SW 8
Mixing Hgt(ft-agl) 220 9110 9500
Vent Rate (mph-ft) 1540 118430 0 76000
Max Dispersion Early 4 Very Poor 92 Good 4 Very Poor 55 Gen Good
Max Dispersion Late 4 Very Poor 106 Very Good2 Very Poor 62 Good
Category Day 1 5 1 4
Max LVORI Early 3 3 3 4
Max LVORI Late 3 2 4 2
Precip Chance (%) 0 0 0 0
Precip Type None None None None
Precip Duration
Precip Amount 0.00 0.00 0.00 0.00
Precip Begin
Precip End
Chance of Thunder (%) 0 0 0 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.THURSDAY NIGHT...Mostly clear. Lows in the lower 50s. South
winds less than 10 mph.
.FRIDAY...Mostly sunny. Highs in the upper 70s. Minimum RH
35 percent. Southwest winds less than 10 mph.
.FRIDAY NIGHT...Partly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the mid 50s. South winds
less than 10 mph.
.SATURDAY...Showers and a chance of thunderstorms. Highs in the
lower 70s. Minimum RH 61 percent. West winds less than 10 mph.
.SATURDAY NIGHT...Mostly cloudy with a chance of showers. Lows in
the lower 50s. North winds less than 10 mph.
.SUNDAY...Partly sunny with a chance of showers and a slight
chance of thunderstorms. Highs in the upper 70s. Minimum RH
39 percent. Northwest winds less than 10 mph.
.SUNDAY NIGHT...Mostly cloudy with a slight chance of showers.
Lows in the lower 50s. Southeast winds less than 10 mph.
.MONDAY...Partly sunny with a chance of showers and a slight
chance of thunderstorms. Highs in the mid 70s. Minimum RH
45 percent. Southeast winds less than 10 mph.
.MONDAY NIGHT...Mostly cloudy with showers likely and a chance of
thunderstorms. Lows in the mid 50s. South winds 5 to 10 mph.
.TUESDAY...Mostly sunny with a chance of showers and a slight
chance of thunderstorms. Highs in the mid 70s. Minimum RH
52 percent. Southwest winds less than 10 mph.
*The AGL Mixing Height is calculated from an average elevation for
the entire Forecast Zone and should only be used as a guide.
For a specific AGL Mixing Height a Spot Forecast will be needed.
$$
NCZ061-221945-
Clay-
Including the cities of Shooting Creek, Brasstown, Hayesville,
and Tusquitee
242 PM EDT Tue Apr 21 2026
Tonight Wed Wed Night Thu
Cloud Cover Pcldy Mclear Mclear Mclear
Temp (24h trend) 43-48 (+4) 73-78 (+3) 48-53 74-79
RH % (24h trend) 80-85 (+10) 24-29 (-6) 75-80 26-31
RH Recovery Excellent Excellent
AM 20FT Wnd (mph) W 9 W 6
PM 20FT Wnd (mph) S 7 W 8 NW 6 SW 5
Transport Wnd (mph) SW 7 W 13 NE 5 SW 8
Mixing Hgt(ft-agl) 130 8610 8990
Vent Rate (mph-ft) 910 111930 0 71920
Max Dispersion Early 4 Very Poor 88 Good 3 Very Poor 54 Gen Good
Max Dispersion Late 4 Very Poor 100 Good 2 Very Poor 64 Good
Category Day 1 4 1 4
Max LVORI Early 3 3 3 3
Max LVORI Late 3 2 4 2
Precip Chance (%) 0 0 0 0
Precip Type None None None None
Precip Duration
Precip Amount 0.00 0.00 0.00 0.00
Precip Begin
Precip End
Chance of Thunder (%) 0 0 0 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.THURSDAY NIGHT...Mostly clear. Lows in the lower 50s. South
winds less than 10 mph.
.FRIDAY...Mostly sunny. Highs in the mid 70s. Minimum RH
40 percent. Southwest winds less than 10 mph.
.FRIDAY NIGHT...Partly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the mid 50s. Southwest
winds less than 10 mph.
.SATURDAY...Showers and a chance of thunderstorms. Highs in the
lower 70s. Minimum RH 66 percent. West winds less than 10 mph.
.SATURDAY NIGHT...Mostly cloudy with a chance of showers. Lows in
the lower 50s. North winds less than 10 mph.
.SUNDAY...Partly sunny with a chance of showers and a slight
chance of thunderstorms. Highs in the mid 70s. Minimum RH
42 percent. Southwest winds less than 10 mph.
.SUNDAY NIGHT...Mostly cloudy with a slight chance of showers.
Lows in the lower 50s. Southeast winds less than 10 mph.
.MONDAY...Partly sunny with a chance of showers and a slight
chance of thunderstorms. Highs in the lower 70s. Minimum RH
53 percent. Southeast winds less than 10 mph.
.MONDAY NIGHT...Mostly cloudy with showers likely and a slight
chance of thunderstorms. Lows in the mid 50s. Southeast winds
less than 10 mph.
.TUESDAY...Mostly sunny with a chance of showers and a slight
chance of thunderstorms. Highs in the lower 70s. Minimum RH
58 percent. Southwest winds less than 10 mph.
*The AGL Mixing Height is calculated from an average elevation for
the entire Forecast Zone and should only be used as a guide.
For a specific AGL Mixing Height a Spot Forecast will be needed.
$$
TNZ015-221945-
Hancock-
Including the cities of Evanston, Sneedville, Treadway,
and Kyles Ford
242 PM EDT Tue Apr 21 2026
Tonight Wed Wed Night Thu
Cloud Cover Pcldy Mclear Mclear Mclear
Temp (24h trend) 43-48 (+10) 77-82 (+5) 47-52 78-83
RH % (24h trend) 89-94 (+22) 22-27 (-9) 86-91 25-30
RH Recovery Excellent Excellent
AM 20FT Wnd (mph) W 8 Lgt/Var
PM 20FT Wnd (mph) SW 7 W 8 Lgt/Var Lgt/Var
Transport Wnd (mph) W 9 W 20 NW 3 W 10
Mixing Hgt(ft-agl) 240 8050 10 8180
Vent Rate (mph-ft) 2160 161000 30 81800
Max Dispersion Early 5 Very Poor 128 Very Good3 Very Poor 53 Gen Good
Max Dispersion Late 5 Very Poor 143 Very Good1 Very Poor 80 Good
Category Day 1 5 1 4
Max LVORI Early 3 4 4 4
Max LVORI Late 5 2 6 2
Precip Chance (%) 0 0 0 0
Precip Type None None None None
Precip Duration
Precip Amount 0.00 0.00 0.00 0.00
Precip Begin
Precip End
Chance of Thunder (%) 0 0 0 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.THURSDAY NIGHT...Mostly clear. Lows in the lower 50s. South
winds less than 10 mph.
.FRIDAY...Mostly sunny. Highs around 80. Minimum RH 36 percent.
Southwest winds less than 10 mph.
.FRIDAY NIGHT...Mostly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the mid 50s. Southwest
winds less than 10 mph.
.SATURDAY...Showers and a chance of thunderstorms. Highs in the
mid 70s. Minimum RH 56 percent. West winds less than 10 mph.
.SATURDAY NIGHT...Partly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the lower 50s. North
winds less than 10 mph.
.SUNDAY...Mostly sunny with a chance of showers. Highs in the
upper 70s. Minimum RH 36 percent. Northeast winds less than
10 mph.
.SUNDAY NIGHT...Partly cloudy with a slight chance of showers.
Lows in the lower 50s. East winds less than 10 mph.
.MONDAY...Mostly sunny with a chance of showers and a slight
chance of thunderstorms. Highs in the upper 70s. Minimum RH
43 percent. South winds less than 10 mph.
.MONDAY NIGHT...Mostly cloudy with showers likely and a chance of
thunderstorms. Lows in the mid 50s. South winds less than 10 mph.
.TUESDAY...Mostly sunny with a chance of showers and a slight
chance of thunderstorms. Highs in the mid 70s. Minimum RH
52 percent. Southwest winds 5 to 10 mph.
*The AGL Mixing Height is calculated from an average elevation for
the entire Forecast Zone and should only be used as a guide.
For a specific AGL Mixing Height a Spot Forecast will be needed.
$$
TNZ016-221945-
Hawkins-
Including the city of Mooresburg
242 PM EDT Tue Apr 21 2026
Tonight Wed Wed Night Thu
Cloud Cover Mclear Mclear Mclear Mclear
Temp (24h trend) 42-47 (+9) 77-82 (+6) 47-52 78-83
RH % (24h trend) 94-99 (+24) 24-29 (-10) 87-92 28-33
RH Recovery Excellent Excellent
AM 20FT Wnd (mph) W 9 Lgt/Var
PM 20FT Wnd (mph) SW 7 W 9 W 5 Lgt/Var
Transport Wnd (mph) SW 9 W 20 NW 2 W 10
Mixing Hgt(ft-agl) 270 8290 40 7890
Vent Rate (mph-ft) 2430 165800 80 78900
Max Dispersion Early 4 Very Poor 128 Very Good3 Very Poor 51 Gen Good
Max Dispersion Late 4 Very Poor 143 Very Good1 Very Poor 73 Good
Category Day 1 5 1 4
Max LVORI Early 3 5 4 5
Max LVORI Late 5 2 6 2
Precip Chance (%) 0 0 0 0
Precip Type None None None None
Precip Duration
Precip Amount 0.00 0.00 0.00 0.00
Precip Begin
Precip End
Chance of Thunder (%) 0 0 0 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.THURSDAY NIGHT...Mostly clear. Lows in the lower 50s. South
winds less than 10 mph.
.FRIDAY...Sunny. Highs around 80. Minimum RH 39 percent.
Southwest winds less than 10 mph.
.FRIDAY NIGHT...Partly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the mid 50s. Southwest
winds less than 10 mph.
.SATURDAY...Showers and a chance of thunderstorms. Highs in the
mid 70s. Minimum RH 63 percent. West winds less than 10 mph.
.SATURDAY NIGHT...Mostly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the lower 50s. Northwest
winds less than 10 mph.
.SUNDAY...Mostly sunny with a chance of showers. Highs in the
upper 70s. Minimum RH 39 percent. Northeast winds less than
10 mph.
.SUNDAY NIGHT...Partly cloudy with a slight chance of showers.
Lows in the lower 50s. East winds less than 10 mph.
.MONDAY...Mostly sunny with a chance of showers and a slight
chance of thunderstorms. Highs in the upper 70s. Minimum RH
44 percent. Southeast winds less than 10 mph.
.MONDAY NIGHT...Mostly cloudy with showers likely and a slight
chance of thunderstorms. Lows in the mid 50s. South winds less
than 10 mph.
.TUESDAY...Mostly sunny with showers likely and a slight chance
of thunderstorms. Highs in the mid 70s. Minimum RH 56 percent.
Southwest winds 5 to 10 mph.
*The AGL Mixing Height is calculated from an average elevation for
the entire Forecast Zone and should only be used as a guide.
For a specific AGL Mixing Height a Spot Forecast will be needed.
$$
TNZ017-221945-
Sullivan-
Including the cities of Kingsport, Bristol TN,
and South Holston Dam
242 PM EDT Tue Apr 21 2026
Tonight Wed Wed Night Thu
Cloud Cover Mclear Mclear Mclear Clear
Temp (24h trend) 44-49 (+10) 75-80 (+6) 48-53 77-82
RH % (24h trend) 90-95 (+24) 25-30 (-8) 83-88 27-32
RH Recovery Excellent Excellent
AM 20FT Wnd (mph) W 13 SW 6
PM 20FT Wnd (mph) SW 10 W 12 SW 9 W 6
Transport Wnd (mph) SW 9 W 22 S 3 W 13
Mixing Hgt(ft-agl) 310 8190 50 7750
Vent Rate (mph-ft) 2790 180180 150 100750
Max Dispersion Early 5 Very Poor 135 Very Good4 Very Poor 73 Good
Max Dispersion Late 4 Very Poor 155 Very Good2 Very Poor 85 Good
Category Day 1 5 1 4
Max LVORI Early 3 3 3 4
Max LVORI Late 4 2 5 2
Precip Chance (%) 0 0 0 0
Precip Type None None None None
Precip Duration
Precip Amount 0.00 0.00 0.00 0.00
Precip Begin
Precip End
Chance of Thunder (%) 0 0 0 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.THURSDAY NIGHT...Mostly clear. Lows in the lower 50s. South
winds less than 10 mph.
.FRIDAY...Sunny. Highs in the upper 70s. Minimum RH 37 percent.
Southwest winds less than 10 mph.
.FRIDAY NIGHT...Partly cloudy with a chance of showers. Lows in
the upper 50s. South winds less than 10 mph.
.SATURDAY...Showers and a chance of thunderstorms. Highs in the
mid 70s. Minimum RH 62 percent. West winds less than 10 mph.
.SATURDAY NIGHT...Mostly cloudy with a chance of showers. Lows in
the lower 50s. Northwest winds less than 10 mph.
.SUNDAY...Mostly sunny with a chance of showers. Highs in the
upper 70s. Minimum RH 38 percent. North winds less than 10 mph.
.SUNDAY NIGHT...Partly cloudy with a slight chance of showers.
Lows in the lower 50s. East winds less than 10 mph.
.MONDAY...Mostly sunny with a chance of showers and a slight
chance of thunderstorms. Highs in the upper 70s. Minimum RH
41 percent. South winds less than 10 mph.
.MONDAY NIGHT...Mostly cloudy with showers likely and a slight
chance of thunderstorms. Lows in the mid 50s. South winds 5 to
10 mph.
.TUESDAY...Partly sunny with showers likely and a slight chance
of thunderstorms. Highs in the mid 70s. Minimum RH 56 percent.
Southwest winds 5 to 10 mph.
*The AGL Mixing Height is calculated from an average elevation for
the entire Forecast Zone and should only be used as a guide.
For a specific AGL Mixing Height a Spot Forecast will be needed.
$$
TNZ046-221945-
Northwest Carter-
Including the city of Elizabethton
242 PM EDT Tue Apr 21 2026
Tonight Wed Wed Night Thu
Cloud Cover Mclear Mclear Mclear Mclear
Temp (24h trend) 45-50 (+11) 73-78 (+5) 48-53 75-80
RH % (24h trend) 75-80 (+12) 24-29 (-5) 75-80 26-31
RH Recovery Excellent Excellent
AM 20FT Wnd (mph) W 11 G20 W 6
PM 20FT Wnd (mph) SW 9 W 11 G20 SW 8 W 6
Transport Wnd (mph) S 9 W 22 SW 5 W 13
Mixing Hgt(ft-agl) 220 7660 30 7190
Vent Rate (mph-ft) 1980 168520 150 93470
Max Dispersion Early 6 Very Poor 134 Very Good6 Very Poor 80 Good
Max Dispersion Late 6 Very Poor 148 Very Good3 Very Poor 83 Good
Category Day 1 5 1 4
Max LVORI Early 3 3 3 3
Max LVORI Late 3 2 4 2
Precip Chance (%) 0 0 0 0
Precip Type None None None None
Precip Duration
Precip Amount 0.00 0.00 0.00 0.00
Precip Begin
Precip End
Chance of Thunder (%) 0 0 0 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.THURSDAY NIGHT...Mostly clear. Lows in the lower 50s. South
winds less than 10 mph.
.FRIDAY...Sunny. Highs in the upper 70s. Minimum RH 35 percent.
West winds less than 10 mph.
.FRIDAY NIGHT...Partly cloudy with a chance of showers. Lows in
the mid 50s. South winds less than 10 mph.
.SATURDAY...Showers and a chance of thunderstorms. Highs in the
lower 70s. Minimum RH 60 percent. West winds less than 10 mph.
.SATURDAY NIGHT...Mostly cloudy with a chance of showers. Lows in
the lower 50s. West winds less than 10 mph.
.SUNDAY...Mostly sunny with a chance of showers. Highs in the mid
70s. Minimum RH 37 percent. North winds less than 10 mph.
.SUNDAY NIGHT...Partly cloudy with a slight chance of showers.
Lows around 50. Southeast winds less than 10 mph.
.MONDAY...Mostly sunny with a chance of showers and a slight
chance of thunderstorms. Highs in the mid 70s. Minimum RH
40 percent. South winds 5 to 10 mph.
.MONDAY NIGHT...Mostly cloudy with showers likely and a slight
chance of thunderstorms. Lows in the mid 50s. South winds 5 to
10 mph.
.TUESDAY...Partly sunny with showers likely and a slight chance
of thunderstorms. Highs in the lower 70s. Minimum RH 55 percent.
Southwest winds 5 to 10 mph.
*The AGL Mixing Height is calculated from an average elevation for
the entire Forecast Zone and should only be used as a guide.
For a specific AGL Mixing Height a Spot Forecast will be needed.
$$
TNZ044-221945-
Washington TN-
Including the city of Johnson City
242 PM EDT Tue Apr 21 2026
Tonight Wed Wed Night Thu
Cloud Cover Mclear Mclear Mclear Mclear
Temp (24h trend) 44-49 (+9) 74-79 (+5) 49-54 76-81
RH % (24h trend) 87-92 (+19) 25-30 (-8) 80-85 29-34
RH Recovery Excellent Excellent
AM 20FT Wnd (mph) W 11 G19 SW 5
PM 20FT Wnd (mph) S 8 W 11 G19 SW 7 W 5
Transport Wnd (mph) SW 10 W 21 SW 5 W 13
Mixing Hgt(ft-agl) 290 7800 10 7310
Vent Rate (mph-ft) 2900 163800 50 95030
Max Dispersion Early 5 Very Poor 125 Very Good4 Very Poor 70 Good
Max Dispersion Late 5 Very Poor 140 Very Good3 Very Poor 77 Good
Category Day 1 5 1 4
Max LVORI Early 3 3 3 4
Max LVORI Late 3 2 5 2
Precip Chance (%) 0 0 0 0
Precip Type None None None None
Precip Duration
Precip Amount 0.00 0.00 0.00 0.00
Precip Begin
Precip End
Chance of Thunder (%) 0 0 0 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.THURSDAY NIGHT...Mostly clear. Lows in the lower 50s. South
winds less than 10 mph.
.FRIDAY...Sunny. Highs in the upper 70s. Minimum RH 38 percent.
Southwest winds less than 10 mph.
.FRIDAY NIGHT...Partly cloudy with a chance of showers. Lows in
the upper 50s. South winds less than 10 mph.
.SATURDAY...Showers and a chance of thunderstorms. Highs in the
mid 70s. Minimum RH 65 percent. West winds less than 10 mph.
.SATURDAY NIGHT...Mostly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the lower 50s. West winds
less than 10 mph.
.SUNDAY...Partly sunny with a chance of showers and a slight
chance of thunderstorms. Highs in the mid 70s. Minimum RH
41 percent. North winds less than 10 mph.
.SUNDAY NIGHT...Partly cloudy with a slight chance of showers.
Lows in the lower 50s. Southeast winds less than 10 mph.
.MONDAY...Mostly sunny with a chance of showers and a slight
chance of thunderstorms. Highs in the upper 70s. Minimum RH
43 percent. South winds less than 10 mph.
.MONDAY NIGHT...Mostly cloudy with showers likely and a slight
chance of thunderstorms. Lows in the mid 50s. South winds 5 to
10 mph.
.TUESDAY...Partly sunny with showers likely and a slight chance
of thunderstorms. Highs in the mid 70s. Minimum RH 56 percent.
Southwest winds 5 to 10 mph.
*The AGL Mixing Height is calculated from an average elevation for
the entire Forecast Zone and should only be used as a guide.
For a specific AGL Mixing Height a Spot Forecast will be needed.
$$
TNZ042-221945-
Northwest Greene-
Including the city of Greeneville
242 PM EDT Tue Apr 21 2026
Tonight Wed Wed Night Thu
Cloud Cover Mclear Mclear Mclear Mclear
Temp (24h trend) 44-49 (+9) 75-80 (+4) 48-53 77-82
RH % (24h trend) 90-95 (+17) 24-29 (-8) 84-89 27-32
RH Recovery Excellent Excellent
AM 20FT Wnd (mph) W 11 Lgt/Var
PM 20FT Wnd (mph) SW 7 W 11 SW 6 Lgt/Var
Transport Wnd (mph) SW 9 W 18 S 5 W 10
Mixing Hgt(ft-agl) 280 7880 80 7470
Vent Rate (mph-ft) 2520 141840 400 74700
Max Dispersion Early 5 Very Poor 119 Very Good4 Very Poor 52 Gen Good
Max Dispersion Late 4 Very Poor 132 Very Good2 Very Poor 69 Good
Category Day 1 5 1 4
Max LVORI Early 3 3 3 4
Max LVORI Late 4 2 5 2
Precip Chance (%) 0 0 0 0
Precip Type None None None None
Precip Duration
Precip Amount 0.00 0.00 0.00 0.00
Precip Begin
Precip End
Chance of Thunder (%) 0 0 0 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.THURSDAY NIGHT...Mostly clear. Lows in the lower 50s. South
winds less than 10 mph.
.FRIDAY...Sunny. Highs around 80. Minimum RH 38 percent.
Southwest winds less than 10 mph.
.FRIDAY NIGHT...Partly cloudy with a chance of showers. Lows in
the mid 50s. South winds less than 10 mph.
.SATURDAY...Showers and a chance of thunderstorms. Highs in the
mid 70s. Minimum RH 64 percent. Southwest winds less than 10 mph.
.SATURDAY NIGHT...Mostly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the mid 50s. Northwest
winds less than 10 mph.
.SUNDAY...Partly sunny with a chance of showers and a slight
chance of thunderstorms. Highs in the upper 70s. Minimum RH
41 percent. North winds less than 10 mph.
.SUNDAY NIGHT...Partly cloudy with a slight chance of showers.
Lows in the lower 50s. Southeast winds less than 10 mph.
.MONDAY...Mostly sunny with a chance of showers and a slight
chance of thunderstorms. Highs in the upper 70s. Minimum RH
43 percent. Southeast winds 5 to 10 mph.
.MONDAY NIGHT...Mostly cloudy with showers likely and a slight
chance of thunderstorms. Lows in the upper 50s. South winds 5 to
10 mph.
.TUESDAY...Partly sunny with showers likely and a slight chance
of thunderstorms. Highs in the mid 70s. Minimum RH 55 percent.
Southwest winds 5 to 10 mph.
*The AGL Mixing Height is calculated from an average elevation for
the entire Forecast Zone and should only be used as a guide.
For a specific AGL Mixing Height a Spot Forecast will be needed.
$$
TNZ038-221945-
Grainger-
Including the city of Bean Station
242 PM EDT Tue Apr 21 2026
Tonight Wed Wed Night Thu
Cloud Cover Mclear Mclear Mclear Mclear
Temp (24h trend) 47-52 (+10) 78-83 (+5) 49-54 79-84
RH % (24h trend) 82-87 (+13) 22-27 (-9) 83-88 25-30
RH Recovery Excellent Excellent
AM 20FT Wnd (mph) W 8 Lgt/Var
PM 20FT Wnd (mph) SW 7 W 8 Lgt/Var Lgt/Var
Transport Wnd (mph) SW 10 W 17 NW 3 W 10
Mixing Hgt(ft-agl) 240 8350 40 8370
Vent Rate (mph-ft) 2400 141950 120 83700
Max Dispersion Early 4 Very Poor 115 Very Good3 Very Poor 47 Gen Good
Max Dispersion Late 4 Very Poor 131 Very Good1 Very Poor 80 Good
Category Day 1 5 1 4
Max LVORI Early 3 4 3 4
Max LVORI Late 4 2 5 2
Precip Chance (%) 0 0 0 0
Precip Type None None None None
Precip Duration
Precip Amount 0.00 0.00 0.00 0.00
Precip Begin
Precip End
Chance of Thunder (%) 0 0 0 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.THURSDAY NIGHT...Mostly clear. Lows in the mid 50s. South winds
less than 10 mph.
.FRIDAY...Mostly sunny. Highs in the lower 80s. Minimum RH
37 percent. Southwest winds less than 10 mph.
.FRIDAY NIGHT...Mostly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the upper 50s. Southwest
winds less than 10 mph.
.SATURDAY...Showers and a chance of thunderstorms. Highs in the
mid 70s. Minimum RH 60 percent. West winds less than 10 mph.
.SATURDAY NIGHT...Mostly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the mid 50s. North winds
less than 10 mph.
.SUNDAY...Mostly sunny with a chance of showers. Highs in the
upper 70s. Minimum RH 39 percent. Northeast winds less than
10 mph.
.SUNDAY NIGHT...Partly cloudy with a slight chance of showers.
Lows in the mid 50s. East winds less than 10 mph.
.MONDAY...Mostly sunny with a chance of showers and a slight
chance of thunderstorms. Highs around 80. Minimum RH 44 percent.
South winds less than 10 mph.
.MONDAY NIGHT...Mostly cloudy with showers likely and a chance of
thunderstorms. Lows in the upper 50s. South winds less than
10 mph.
.TUESDAY...Mostly sunny with a chance of showers and a slight
chance of thunderstorms. Highs in the upper 70s. Minimum RH
53 percent. Southwest winds less than 10 mph.
*The AGL Mixing Height is calculated from an average elevation for
the entire Forecast Zone and should only be used as a guide.
For a specific AGL Mixing Height a Spot Forecast will be needed.
$$
TNZ039-221945-
Hamblen-
Including the cities of Alpha, Morristown, and Russellville
242 PM EDT Tue Apr 21 2026
Tonight Wed Wed Night Thu
Cloud Cover Mclear Mclear Mclear Mclear
Temp (24h trend) 45-50 (+10) 77-82 (+4) 48-53 78-83
RH % (24h trend) 90-95 (+15) 24-29 (-7) 87-92 26-31
RH Recovery Excellent Excellent
AM 20FT Wnd (mph) W 8 Lgt/Var
PM 20FT Wnd (mph) SW 5 W 8 Lgt/Var Lgt/Var
Transport Wnd (mph) SW 9 W 18 W 2 W 10
Mixing Hgt(ft-agl) 290 8210 50 7830
Vent Rate (mph-ft) 2610 147780 100 78300
Max Dispersion Early 4 Very Poor 112 Very Good3 Very Poor 41 Gen Good
Max Dispersion Late 4 Very Poor 130 Very Good1 Very Poor 78 Good
Category Day 1 5 1 4
Max LVORI Early 3 4 3 5
Max LVORI Late 5 2 6 2
Precip Chance (%) 0 0 0 0
Precip Type None None None None
Precip Duration
Precip Amount 0.00 0.00 0.00 0.00
Precip Begin
Precip End
Chance of Thunder (%) 0 0 0 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.THURSDAY NIGHT...Mostly clear. Lows in the lower 50s. Light and
variable wind.
.FRIDAY...Sunny. Highs in the lower 80s. Minimum RH 37 percent.
Southwest winds less than 10 mph.
.FRIDAY NIGHT...Partly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the upper 50s. Light and
variable wind.
.SATURDAY...Showers and a chance of thunderstorms. Highs in the
mid 70s. Minimum RH 62 percent. Southwest winds less than 10 mph.
.SATURDAY NIGHT...Mostly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the mid 50s. Light and
variable wind.
.SUNDAY...Partly sunny with a chance of showers and a slight
chance of thunderstorms. Highs in the upper 70s. Minimum RH
40 percent. Northeast winds less than 10 mph.
.SUNDAY NIGHT...Partly cloudy with a slight chance of showers.
Lows in the lower 50s. East winds less than 10 mph.
.MONDAY...Mostly sunny with a chance of showers and a slight
chance of thunderstorms. Highs around 80. Minimum RH 43 percent.
South winds less than 10 mph.
.MONDAY NIGHT...Mostly cloudy with showers likely and a slight
chance of thunderstorms. Lows in the upper 50s. South winds less
than 10 mph.
.TUESDAY...Mostly sunny with a chance of showers and a slight
chance of thunderstorms. Highs in the mid 70s. Minimum RH
54 percent. Southwest winds less than 10 mph.
*The AGL Mixing Height is calculated from an average elevation for
the entire Forecast Zone and should only be used as a guide.
For a specific AGL Mixing Height a Spot Forecast will be needed.
$$
TNZ040-221945-
Northwest Cocke-
Including the cities of Bybee and Newport
242 PM EDT Tue Apr 21 2026
Tonight Wed Wed Night Thu
Cloud Cover Mclear Mclear Mclear Mclear
Temp (24h trend) 47-52 (+9) 76-81 (+4) 50-55 77-82
RH % (24h trend) 82-87 (+10) 22-27 (-7) 80-85 26-31
RH Recovery Excellent Excellent
AM 20FT Wnd (mph) W 11 Lgt/Var
PM 20FT Wnd (mph) SW 9 W 11 SW 5 Lgt/Var
Transport Wnd (mph) SW 8 W 18 S 5 W 12
Mixing Hgt(ft-agl) 260 7890 40 8040
Vent Rate (mph-ft) 2080 142020 200 96480
Max Dispersion Early 5 Very Poor 117 Very Good3 Very Poor 62 Good
Max Dispersion Late 4 Very Poor 131 Very Good2 Very Poor 78 Good
Category Day 1 5 1 4
Max LVORI Early 2 3 3 4
Max LVORI Late 3 2 4 2
Precip Chance (%) 0 0 0 0
Precip Type None None None None
Precip Duration
Precip Amount 0.00 0.00 0.00 0.00
Precip Begin
Precip End
Chance of Thunder (%) 0 0 0 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.THURSDAY NIGHT...Mostly clear. Lows in the mid 50s. South winds
less than 10 mph.
.FRIDAY...Mostly sunny. Highs in the lower 80s. Minimum RH
36 percent. Southwest winds less than 10 mph.
.FRIDAY NIGHT...Partly cloudy with a chance of showers. Lows in
the upper 50s. South winds less than 10 mph.
.SATURDAY...Showers and a chance of thunderstorms. Highs in the
mid 70s. Minimum RH 63 percent. West winds less than 10 mph.
.SATURDAY NIGHT...Mostly cloudy with a chance of showers. Lows in
the mid 50s. Southwest winds less than 10 mph.
.SUNDAY...Partly sunny with a chance of showers and a slight
chance of thunderstorms. Highs in the upper 70s. Minimum RH
41 percent. North winds less than 10 mph.
.SUNDAY NIGHT...Partly cloudy with a slight chance of showers.
Lows in the mid 50s. Southeast winds less than 10 mph.
.MONDAY...Mostly sunny with a chance of showers and a slight
chance of thunderstorms. Highs in the upper 70s. Minimum RH
42 percent. South winds less than 10 mph.
.MONDAY NIGHT...Mostly cloudy with showers likely and a slight
chance of thunderstorms. Lows in the upper 50s. South winds less
than 10 mph.
.TUESDAY...Mostly sunny with showers likely and a slight chance
of thunderstorms. Highs in the mid 70s. Minimum RH 52 percent.
Southwest winds 5 to 10 mph.
*The AGL Mixing Height is calculated from an average elevation for
the entire Forecast Zone and should only be used as a guide.
For a specific AGL Mixing Height a Spot Forecast will be needed.
$$
TNZ070-221945-
Jefferson-
Including the cities of Jefferson City, Strawberry Plains,
Chestnut Hill, Dandridge, and White Pine
242 PM EDT Tue Apr 21 2026
Tonight Wed Wed Night Thu
Cloud Cover Mclear Mclear Mclear Mclear
Temp (24h trend) 48-53 (+10) 77-82 (+4) 50-55 78-83
RH % (24h trend) 81-86 (+5) 25-30 (-6) 82-87 27-32
RH Recovery Excellent Excellent
AM 20FT Wnd (mph) W 9 Lgt/Var
PM 20FT Wnd (mph) SW 5 W 9 Lgt/Var Lgt/Var
Transport Wnd (mph) SW 9 W 17 SW 3 W 10
Mixing Hgt(ft-agl) 310 8140 80 7970
Vent Rate (mph-ft) 2790 138380 240 79700
Max Dispersion Early 4 Very Poor 110 Very Good3 Very Poor 45 Gen Good
Max Dispersion Late 4 Very Poor 128 Very Good2 Very Poor 75 Good
Category Day 1 5 1 4
Max LVORI Early 3 3 3 4
Max LVORI Late 3 2 5 2
Precip Chance (%) 0 0 0 0
Precip Type None None None None
Precip Duration
Precip Amount 0.00 0.00 0.00 0.00
Precip Begin
Precip End
Chance of Thunder (%) 0 0 0 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.THURSDAY NIGHT...Mostly clear. Lows in the mid 50s. South winds
less than 10 mph.
.FRIDAY...Sunny. Highs in the lower 80s. Minimum RH 37 percent.
Southwest winds less than 10 mph.
.FRIDAY NIGHT...Mostly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the upper 50s. Southwest
winds less than 10 mph.
.SATURDAY...Showers and a chance of thunderstorms. Highs in the
mid 70s. Minimum RH 64 percent. Southwest winds less than 10 mph.
.SATURDAY NIGHT...Mostly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the mid 50s. West winds
less than 10 mph.
.SUNDAY...Partly sunny with a chance of showers and a slight
chance of thunderstorms. Highs in the upper 70s. Minimum RH
42 percent. Northeast winds less than 10 mph.
.SUNDAY NIGHT...Partly cloudy with a slight chance of showers.
Lows in the mid 50s. East winds less than 10 mph.
.MONDAY...Partly sunny with a chance of showers and a slight
chance of thunderstorms. Highs around 80. Minimum RH 44 percent.
South winds less than 10 mph.
.MONDAY NIGHT...Mostly cloudy with showers likely and a slight
chance of thunderstorms. Lows in the upper 50s. South winds less
than 10 mph.
.TUESDAY...Mostly sunny with a chance of showers and a slight
chance of thunderstorms. Highs in the upper 70s. Minimum RH
53 percent. Southwest winds 5 to 10 mph.
*The AGL Mixing Height is calculated from an average elevation for
the entire Forecast Zone and should only be used as a guide.
For a specific AGL Mixing Height a Spot Forecast will be needed.
$$
TNZ035-221945-
Morgan-
Including the cities of Pine Orchard, High Point, and Petros
242 PM EDT Tue Apr 21 2026
Tonight Wed Wed Night Thu
Cloud Cover Mclear Mclear Mclear Mclear
Temp (24h trend) 48-53 (+9) 77-82 (+3) 49-54 78-83
RH % (24h trend) 76-81 (+3) 22-27 (-7) 81-86 25-30
RH Recovery Excellent Excellent
AM 20FT Wnd (mph) W 9 S 5
PM 20FT Wnd (mph) SW 10 W 9 W 6 SW 5
Transport Wnd (mph) W 8 W 17 SW 5 SW 10
Mixing Hgt(ft-agl) 240 7950 9120
Vent Rate (mph-ft) 1920 135150 0 91200
Max Dispersion Early 5 Very Poor 117 Very Good3 Very Poor 73 Good
Max Dispersion Late 5 Very Poor 127 Very Good2 Very Poor 85 Good
Category Day 1 5 1 4
Max LVORI Early 3 3 3 4
Max LVORI Late 3 2 5 2
Precip Chance (%) 0 0 0 0
Precip Type None None None None
Precip Duration
Precip Amount 0.00 0.00 0.00 0.00
Precip Begin
Precip End
Chance of Thunder (%) 0 0 0 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.THURSDAY NIGHT...Mostly clear. Lows in the mid 50s. South winds
less than 10 mph.
.FRIDAY...Mostly sunny with a slight chance of showers and
thunderstorms. Highs in the lower 80s. Minimum RH 40 percent.
Southwest winds less than 10 mph.
.FRIDAY NIGHT...Mostly cloudy with showers likely and a chance of
thunderstorms. Lows in the upper 50s. Southwest winds less than
10 mph.
.SATURDAY...Showers and a chance of thunderstorms. Highs in the
lower 70s. Minimum RH 64 percent. West winds less than 10 mph.
.SATURDAY NIGHT...Partly cloudy with a chance of showers. Lows in
the lower 50s. North winds less than 10 mph.
.SUNDAY...Mostly sunny with a chance of showers. Highs in the
upper 70s. Minimum RH 40 percent. Northeast winds less than
10 mph.
.SUNDAY NIGHT...Partly cloudy with a slight chance of showers.
Lows in the mid 50s. Southeast winds less than 10 mph.
.MONDAY...Partly sunny with a chance of showers and a slight
chance of thunderstorms. Highs in the upper 70s. Minimum RH
50 percent. South winds 5 to 10 mph.
.MONDAY NIGHT...Mostly cloudy with showers likely and a chance of
thunderstorms. Lows in the upper 50s. South winds 5 to 10 mph.
.TUESDAY...Mostly sunny with a chance of showers and a slight
chance of thunderstorms. Highs in the upper 70s. Minimum RH
49 percent. Southwest winds 5 to 10 mph.
*The AGL Mixing Height is calculated from an average elevation for
the entire Forecast Zone and should only be used as a guide.
For a specific AGL Mixing Height a Spot Forecast will be needed.
$$
TNZ012-221945-
Scott TN-
Including the cities of Big South Fork National, Oneida,
Smokey Junction, Elgin, Huntsville, Norma, and Slick Rock
242 PM EDT Tue Apr 21 2026
Tonight Wed Wed Night Thu
Cloud Cover Mclear Mclear Mclear Mclear
Temp (24h trend) 50-55 (+11) 76-81 (+2) 51-56 78-83
RH % (24h trend) 69-74 (+2) 22-27 (-5) 78-83 25-30
RH Recovery Excellent Excellent
AM 20FT Wnd (mph) W 8 Lgt/Var
PM 20FT Wnd (mph) SW 8 W 8 Lgt/Var Lgt/Var
Transport Wnd (mph) SW 12 W 20 SW 6 SW 10
Mixing Hgt(ft-agl) 300 7510 9360
Vent Rate (mph-ft) 3600 150200 0 93600
Max Dispersion Early 6 Very Poor 121 Very Good3 Very Poor 89 Good
Max Dispersion Late 6 Very Poor 130 Very Good2 Very Poor 92 Good
Category Day 1 5 1 4
Max LVORI Early 2 3 3 3
Max LVORI Late 3 2 4 2
Precip Chance (%) 0 0 0 0
Precip Type None None None None
Precip Duration
Precip Amount 0.00 0.00 0.00 0.00
Precip Begin
Precip End
Chance of Thunder (%) 0 0 0 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.THURSDAY NIGHT...Mostly clear. Lows in the mid 50s. South winds
less than 10 mph.
.FRIDAY...Mostly sunny with a slight chance of showers and
thunderstorms. Highs in the lower 80s. Minimum RH 39 percent.
Southwest winds less than 10 mph.
.FRIDAY NIGHT...Mostly cloudy with showers likely and a chance of
thunderstorms. Lows in the upper 50s. Southwest winds less than
10 mph.
.SATURDAY...Showers and a chance of thunderstorms. Highs in the
lower 70s. Minimum RH 61 percent. West winds less than 10 mph.
.SATURDAY NIGHT...Partly cloudy with a chance of showers. Lows in
the lower 50s. North winds less than 10 mph.
.SUNDAY...Mostly sunny with a chance of showers. Highs in the
upper 70s. Minimum RH 38 percent. Northeast winds less than
10 mph.
.SUNDAY NIGHT...Partly cloudy with a slight chance of showers and
thunderstorms. Lows in the mid 50s. Southeast winds less than
10 mph.
.MONDAY...Partly sunny with a chance of showers and a slight
chance of thunderstorms. Highs in the upper 70s. Minimum RH
48 percent. South winds 5 to 10 mph.
.MONDAY NIGHT...Mostly cloudy with showers likely and a chance of
thunderstorms. Lows in the upper 50s. South winds 5 to 10 mph.
.TUESDAY...Mostly sunny with a chance of showers and a slight
chance of thunderstorms. Highs in the mid 70s. Minimum RH
48 percent. Southwest winds less than 10 mph.
*The AGL Mixing Height is calculated from an average elevation for
the entire Forecast Zone and should only be used as a guide.
For a specific AGL Mixing Height a Spot Forecast will be needed.
$$
TNZ013-221945-
Campbell-
Including the cities of Fincastle, La Follette, Elk Valley,
Jellico, White Oak, Caryville, and Royal Blue
242 PM EDT Tue Apr 21 2026
Tonight Wed Wed Night Thu
Cloud Cover Mclear Mclear Mclear Mclear
Temp (24h trend) 51-56 (+12) 75-80 (+3) 51-56 77-82
RH % (24h trend) 68-73 (+5) 22-27 (-8) 75-80 25-30
RH Recovery Excellent Excellent
AM 20FT Wnd (mph) W 9 Lgt/Var
PM 20FT Wnd (mph) SW 10 W 9 W 5 Lgt/Var
Transport Wnd (mph) SW 12 W 18 SW 5 SW 10
Mixing Hgt(ft-agl) 190 7940 9460
Vent Rate (mph-ft) 2280 142920 0 94600
Max Dispersion Early 5 Very Poor 124 Very Good3 Very Poor 69 Good
Max Dispersion Late 5 Very Poor 132 Very Good2 Very Poor 84 Good
Category Day 1 5 1 4
Max LVORI Early 2 3 3 3
Max LVORI Late 3 2 4 2
Precip Chance (%) 0 0 0 0
Precip Type None None None None
Precip Duration
Precip Amount 0.00 0.00 0.00 0.00
Precip Begin
Precip End
Chance of Thunder (%) 0 0 0 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.THURSDAY NIGHT...Mostly clear. Lows in the mid 50s. South winds
less than 10 mph.
.FRIDAY...Mostly sunny with a slight chance of showers and
thunderstorms. Highs in the upper 70s. Minimum RH 40 percent.
Southwest winds less than 10 mph.
.FRIDAY NIGHT...Mostly cloudy with a chance of showers and
thunderstorms. Lows in the upper 50s. Southwest winds less than
10 mph.
.SATURDAY...Showers and a chance of thunderstorms. Highs in the
lower 70s. Minimum RH 63 percent. West winds less than 10 mph.
.SATURDAY NIGHT...Partly cloudy with a chance of showers. Lows in
the mid 50s. North winds less than 10 mph.
.SUNDAY...Mostly sunny with a chance of showers. Highs in the
upper 70s. Minimum RH 39 percent. Northeast winds less than
10 mph.
.SUNDAY NIGHT...Partly cloudy with a slight chance of showers.
Lows in the mid 50s. East winds less than 10 mph.
.MONDAY...Partly sunny with a chance of showers and a slight
chance of thunderstorms. Highs in the upper 70s. Minimum RH
48 percent. South winds 5 to 10 mph.
.MONDAY NIGHT...Mostly cloudy with showers likely and a chance of
thunderstorms. Lows in the upper 50s. South winds 5 to 10 mph.
.TUESDAY...Mostly sunny with a chance of showers and a slight
chance of thunderstorms. Highs in the mid 70s. Minimum RH
51 percent. Southwest winds 5 to 10 mph.
*The AGL Mixing Height is calculated from an average elevation for
the entire Forecast Zone and should only be used as a guide.
For a specific AGL Mixing Height a Spot Forecast will be needed.
$$
TNZ014-221945-
Claiborne-
Including the cities of Lone Mountain, Sandlick, Springdale,
Arthur, Harrogate-Shawanee, Clairfield, and Howard Quarter
242 PM EDT Tue Apr 21 2026
Tonight Wed Wed Night Thu
Cloud Cover Pcldy Mclear Mclear Mclear
Temp (24h trend) 46-51 (+11) 77-82 (+4) 49-54 78-83
RH % (24h trend) 86-91 (+21) 22-27 (-9) 84-89 24-29
RH Recovery Excellent Excellent
AM 20FT Wnd (mph) W 7 Lgt/Var
PM 20FT Wnd (mph) SW 7 W 7 Lgt/Var Lgt/Var
Transport Wnd (mph) SW 9 W 20 W 3 SW 10
Mixing Hgt(ft-agl) 240 8170 20 8620
Vent Rate (mph-ft) 2160 163400 60 86200
Max Dispersion Early 5 Very Poor 124 Very Good3 Very Poor 59 Gen Good
Max Dispersion Late 5 Very Poor 140 Very Good2 Very Poor 78 Good
Category Day 1 5 1 4
Max LVORI Early 3 4 3 4
Max LVORI Late 4 2 5 2
Precip Chance (%) 0 0 0 0
Precip Type None None None None
Precip Duration
Precip Amount 0.00 0.00 0.00 0.00
Precip Begin
Precip End
Chance of Thunder (%) 0 0 0 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.THURSDAY NIGHT...Mostly clear. Lows in the lower 50s. South
winds less than 10 mph.
.FRIDAY...Mostly sunny with a slight chance of showers and
thunderstorms. Highs around 80. Minimum RH 38 percent. Southwest
winds less than 10 mph.
.FRIDAY NIGHT...Mostly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the upper 50s. Southwest
winds less than 10 mph.
.SATURDAY...Showers and a chance of thunderstorms. Highs in the
mid 70s. Minimum RH 58 percent. West winds less than 10 mph.
.SATURDAY NIGHT...Partly cloudy with a chance of showers. Lows in
the lower 50s. North winds less than 10 mph.
.SUNDAY...Mostly sunny with a chance of showers. Highs in the
upper 70s. Minimum RH 37 percent. Northeast winds less than
10 mph.
.SUNDAY NIGHT...Partly cloudy with a slight chance of showers.
Lows in the lower 50s. East winds less than 10 mph.
.MONDAY...Mostly sunny with a chance of showers and a slight
chance of thunderstorms. Highs in the upper 70s. Minimum RH
44 percent. South winds less than 10 mph.
.MONDAY NIGHT...Mostly cloudy with showers likely and a chance of
thunderstorms. Lows in the upper 50s. South winds less than
10 mph.
.TUESDAY...Mostly sunny with a chance of showers and a slight
chance of thunderstorms. Highs in the mid 70s. Minimum RH
51 percent. Southwest winds less than 10 mph.
*The AGL Mixing Height is calculated from an average elevation for
the entire Forecast Zone and should only be used as a guide.
For a specific AGL Mixing Height a Spot Forecast will be needed.
$$
TNZ037-221945-
Union-
Including the cities of Maynardville, Norris Lake, Paulette,
Rose Hill, Sharps Chapel, and Luttrell
242 PM EDT Tue Apr 21 2026
Tonight Wed Wed Night Thu
Cloud Cover Pcldy Mclear Mclear Mclear
Temp (24h trend) 48-53 (+10) 78-83 (+4) 50-55 79-84
RH % (24h trend) 79-84 (+9) 22-27 (-8) 80-85 25-30
RH Recovery Excellent Excellent
AM 20FT Wnd (mph) SW 7 Lgt/Var
PM 20FT Wnd (mph) SW 7 W 7 Lgt/Var Lgt/Var
Transport Wnd (mph) SW 8 W 17 SW 2 SW 10
Mixing Hgt(ft-agl) 290 8460 40 9110
Vent Rate (mph-ft) 2320 143820 80 91100
Max Dispersion Early 5 Very Poor 118 Very Good3 Very Poor 52 Gen Good
Max Dispersion Late 4 Very Poor 133 Very Good1 Very Poor 82 Good
Category Day 1 5 1 4
Max LVORI Early 3 4 3 4
Max LVORI Late 4 2 5 2
Precip Chance (%) 0 0 0 0
Precip Type None None None None
Precip Duration
Precip Amount 0.00 0.00 0.00 0.00
Precip Begin
Precip End
Chance of Thunder (%) 0 0 0 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.THURSDAY NIGHT...Mostly clear. Lows in the mid 50s. South winds
less than 10 mph.
.FRIDAY...Mostly sunny with a slight chance of showers. Highs in
the lower 80s. Minimum RH 38 percent. Southwest winds less than
10 mph.
.FRIDAY NIGHT...Mostly cloudy with a chance of showers and
thunderstorms. Lows in the upper 50s. Southwest winds less than
10 mph.
.SATURDAY...Showers and a chance of thunderstorms. Highs in the
mid 70s. Minimum RH 62 percent. West winds less than 10 mph.
.SATURDAY NIGHT...Partly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the mid 50s. North winds
less than 10 mph.
.SUNDAY...Mostly sunny with a chance of showers. Highs in the
upper 70s. Minimum RH 38 percent. Northeast winds less than
10 mph.
.SUNDAY NIGHT...Partly cloudy with a slight chance of showers.
Lows in the mid 50s. East winds less than 10 mph.
.MONDAY...Mostly sunny with a chance of showers and a slight
chance of thunderstorms. Highs around 80. Minimum RH 44 percent.
South winds less than 10 mph.
.MONDAY NIGHT...Mostly cloudy with showers likely and a chance of
thunderstorms. Lows in the upper 50s. South winds less than
10 mph.
.TUESDAY...Mostly sunny with a chance of showers and a slight
chance of thunderstorms. Highs in the upper 70s. Minimum RH
52 percent. Southwest winds less than 10 mph.
*The AGL Mixing Height is calculated from an average elevation for
the entire Forecast Zone and should only be used as a guide.
For a specific AGL Mixing Height a Spot Forecast will be needed.
$$
TNZ036-221945-
Anderson-
Including the cities of Oak Ridge and Clinton
242 PM EDT Tue Apr 21 2026
Tonight Wed Wed Night Thu
Cloud Cover Mclear Mclear Mclear Mclear
Temp (24h trend) 49-54 (+10) 77-82 (+4) 51-56 78-83
RH % (24h trend) 78-83 (+8) 22-27 (-10) 80-85 24-29
RH Recovery Excellent Excellent
AM 20FT Wnd (mph) SW 9 S 5
PM 20FT Wnd (mph) SW 11 W 9 W 6 SW 5
Transport Wnd (mph) SW 8 W 17 W 3 SW 10
Mixing Hgt(ft-agl) 220 8510 60 9620
Vent Rate (mph-ft) 1760 144670 180 96200
Max Dispersion Early 5 Very Poor 110 Very Good3 Very Poor 53 Gen Good
Max Dispersion Late 5 Very Poor 132 Very Good2 Very Poor 89 Good
Category Day 1 5 1 4
Max LVORI Early 3 3 3 4
Max LVORI Late 4 2 5 2
Precip Chance (%) 0 0 0 0
Precip Type None None None None
Precip Duration
Precip Amount 0.00 0.00 0.00 0.00
Precip Begin
Precip End
Chance of Thunder (%) 0 0 0 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.THURSDAY NIGHT...Mostly clear. Lows in the mid 50s. Southwest
winds less than 10 mph.
.FRIDAY...Mostly sunny with a slight chance of showers. Highs
around 80. Minimum RH 40 percent. Southwest winds less than
10 mph.
.FRIDAY NIGHT...Mostly cloudy with a chance of showers and
thunderstorms. Lows in the upper 50s. Southwest winds less than
10 mph.
.SATURDAY...Showers and a chance of thunderstorms. Highs in the
lower 70s. Minimum RH 66 percent. Southwest winds less than
10 mph.
.SATURDAY NIGHT...Partly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the mid 50s. North winds
less than 10 mph.
.SUNDAY...Mostly sunny with a chance of showers. Highs in the
upper 70s. Minimum RH 41 percent. Northeast winds less than
10 mph.
.SUNDAY NIGHT...Mostly cloudy with a slight chance of showers.
Lows in the mid 50s. East winds less than 10 mph.
.MONDAY...Partly sunny with a chance of showers and a slight
chance of thunderstorms. Highs in the upper 70s. Minimum RH
48 percent. South winds 5 to 10 mph.
.MONDAY NIGHT...Mostly cloudy with showers likely and a chance of
thunderstorms. Lows in the upper 50s. Southwest winds 5 to
10 mph.
.TUESDAY...Mostly sunny with a chance of showers and a slight
chance of thunderstorms. Highs in the mid 70s. Minimum RH
53 percent. Southwest winds 5 to 10 mph.
*The AGL Mixing Height is calculated from an average elevation for
the entire Forecast Zone and should only be used as a guide.
For a specific AGL Mixing Height a Spot Forecast will be needed.
$$
TNZ069-221945-
Knox-
Including the cities of Bearden, Knoxville, and Lake Forest
242 PM EDT Tue Apr 21 2026
Tonight Wed Wed Night Thu
Cloud Cover Mclear Mclear Mclear Mclear
Temp (24h trend) 49-54 (+10) 79-84 (+4) 51-56 80-85
RH % (24h trend) 78-83 (+2) 22-27 (-9) 81-86 24-29
RH Recovery Excellent Excellent
AM 20FT Wnd (mph) SW 8 Lgt/Var
PM 20FT Wnd (mph) SW 5 W 8 Lgt/Var Lgt/Var
Transport Wnd (mph) SW 9 W 17 SW 3 SW 10
Mixing Hgt(ft-agl) 330 8730 70 8780
Vent Rate (mph-ft) 2970 148410 210 87800
Max Dispersion Early 5 Very Poor 106 Very Good3 Very Poor 47 Gen Good
Max Dispersion Late 4 Very Poor 131 Very Good1 Very Poor 87 Good
Category Day 1 5 1 4
Max LVORI Early 3 3 3 4
Max LVORI Late 3 2 6 2
Precip Chance (%) 0 0 0 0
Precip Type None None None None
Precip Duration
Precip Amount 0.00 0.00 0.00 0.00
Precip Begin
Precip End
Chance of Thunder (%) 0 0 0 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.THURSDAY NIGHT...Mostly clear. Lows in the mid 50s. South winds
less than 10 mph.
.FRIDAY...Mostly sunny. Highs in the lower 80s. Minimum RH
38 percent. Southwest winds less than 10 mph.
.FRIDAY NIGHT...Mostly cloudy with a chance of showers and
thunderstorms. Lows in the upper 50s. Southwest winds less than
10 mph.
.SATURDAY...Showers and a chance of thunderstorms. Highs in the
mid 70s. Minimum RH 66 percent. Southwest winds less than 10 mph.
.SATURDAY NIGHT...Partly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the mid 50s. North winds
less than 10 mph.
.SUNDAY...Partly sunny with a chance of showers and a slight
chance of thunderstorms. Highs around 80. Minimum RH 42 percent.
Northeast winds less than 10 mph.
.SUNDAY NIGHT...Mostly cloudy with a slight chance of showers.
Lows in the mid 50s. East winds less than 10 mph.
.MONDAY...Partly sunny with a chance of showers and a slight
chance of thunderstorms. Highs around 80. Minimum RH 45 percent.
South winds less than 10 mph.
.MONDAY NIGHT...Mostly cloudy with showers likely and a chance of
thunderstorms. Lows around 60. Southwest winds less than 10 mph.
.TUESDAY...Mostly sunny with a chance of showers and a slight
chance of thunderstorms. Highs in the upper 70s. Minimum RH
53 percent. Southwest winds 5 to 10 mph.
*The AGL Mixing Height is calculated from an average elevation for
the entire Forecast Zone and should only be used as a guide.
For a specific AGL Mixing Height a Spot Forecast will be needed.
$$
TNZ073-221945-
North Sevier-
Including the cities of Harrisburg, Kodak, McMahan, Sevierville,
Seymour, and Pigeon Forge
242 PM EDT Tue Apr 21 2026
Tonight Wed Wed Night Thu
Cloud Cover Pcldy Mclear Mclear Mclear
Temp (24h trend) 48-53 (+8) 77-82 (+3) 51-56 79-84
RH % (24h trend) 76-81 (+2) 22-27 (-7) 78-83 26-31
RH Recovery Excellent Excellent
AM 20FT Wnd (mph) W 10 Lgt/Var
PM 20FT Wnd (mph) SW 11 W 10 SW 5 W 5
Transport Wnd (mph) SW 9 W 17 S 5 SW 9
Mixing Hgt(ft-agl) 360 8060 90 7710
Vent Rate (mph-ft) 3240 137020 450 69390
Max Dispersion Early 6 Very Poor 114 Very Good3 Very Poor 58 Gen Good
Max Dispersion Late 6 Very Poor 127 Very Good3 Very Poor 63 Good
Category Day 1 5 1 4
Max LVORI Early 3 3 3 4
Max LVORI Late 3 2 4 2
Precip Chance (%) 0 0 0 0
Precip Type None None None None
Precip Duration
Precip Amount 0.00 0.00 0.00 0.00
Precip Begin
Precip End
Chance of Thunder (%) 0 0 0 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.THURSDAY NIGHT...Mostly clear. Lows in the mid 50s. South winds
less than 10 mph.
.FRIDAY...Mostly sunny. Highs in the lower 80s. Minimum RH
36 percent. Southwest winds less than 10 mph.
.FRIDAY NIGHT...Mostly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the upper 50s. South
winds less than 10 mph.
.SATURDAY...Showers and a chance of thunderstorms. Highs in the
mid 70s. Minimum RH 64 percent. Southwest winds less than 10 mph.
.SATURDAY NIGHT...Mostly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the mid 50s. South winds
less than 10 mph.
.SUNDAY...Partly sunny with a chance of showers and a slight
chance of thunderstorms. Highs in the upper 70s. Minimum RH
42 percent. North winds less than 10 mph.
.SUNDAY NIGHT...Mostly cloudy with a slight chance of showers.
Lows in the mid 50s. Southeast winds less than 10 mph.
.MONDAY...Partly sunny with a chance of showers and a slight
chance of thunderstorms. Highs around 80. Minimum RH 44 percent.
South winds less than 10 mph.
.MONDAY NIGHT...Mostly cloudy with showers likely and a slight
chance of thunderstorms. Lows in the upper 50s. South winds 5 to
10 mph.
.TUESDAY...Mostly sunny with a chance of showers and a slight
chance of thunderstorms. Highs in the upper 70s. Minimum RH
51 percent. Southwest winds 5 to 10 mph.
*The AGL Mixing Height is calculated from an average elevation for
the entire Forecast Zone and should only be used as a guide.
For a specific AGL Mixing Height a Spot Forecast will be needed.
$$
TNZ067-221945-
Roane-
Including the cities of Harriman, Eagle Furnace, Rockwood,
Bradbury, Fairview, Kingston, and Oliver Springs
242 PM EDT Tue Apr 21 2026
Tonight Wed Wed Night Thu
Cloud Cover Pcldy Mclear Mclear Mclear
Temp (24h trend) 47-52 (+8) 80-85 (+4) 49-54 80-85
RH % (24h trend) 84-89 (+3) 23-28 (-9) 87-92 25-30
RH Recovery Excellent Excellent
AM 20FT Wnd (mph) SW 5 Lgt/Var
PM 20FT Wnd (mph) Lgt/Var W 6 Lgt/Var Lgt/Var
Transport Wnd (mph) SW 7 W 16 SW 2 SW 12
Mixing Hgt(ft-agl) 320 9190 130 9930
Vent Rate (mph-ft) 2240 147040 260 119160
Max Dispersion Early 5 Very Poor 105 Very Good3 Very Poor 50 Gen Good
Max Dispersion Late 4 Very Poor 127 Very Good1 Very Poor 95 Good
Category Day 1 5 1 4
Max LVORI Early 3 4 4 5
Max LVORI Late 5 2 6 2
Precip Chance (%) 0 0 0 0
Precip Type None None None None
Precip Duration
Precip Amount 0.00 0.00 0.00 0.00
Precip Begin
Precip End
Chance of Thunder (%) 0 0 0 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.THURSDAY NIGHT...Mostly clear. Lows in the mid 50s. Southwest
winds less than 10 mph.
.FRIDAY...Mostly sunny with a slight chance of showers. Highs in
the lower 80s. Minimum RH 40 percent. Southwest winds less than
10 mph.
.FRIDAY NIGHT...Mostly cloudy with showers likely and a chance of
thunderstorms. Lows in the upper 50s. Southwest winds less than
10 mph.
.SATURDAY...Showers and a chance of thunderstorms. Highs in the
mid 70s. Minimum RH 68 percent. Southwest winds less than 10 mph.
.SATURDAY NIGHT...Partly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the mid 50s. North winds
less than 10 mph.
.SUNDAY...Mostly sunny with a chance of showers and a slight
chance of thunderstorms. Highs around 80. Minimum RH 43 percent.
Northeast winds less than 10 mph.
.SUNDAY NIGHT...Mostly cloudy with a slight chance of showers.
Lows in the mid 50s. Southeast winds less than 10 mph.
.MONDAY...Partly sunny with a chance of showers and a slight
chance of thunderstorms. Highs in the upper 70s. Minimum RH
50 percent. South winds less than 10 mph.
.MONDAY NIGHT...Mostly cloudy with showers likely and a chance of
thunderstorms. Lows in the upper 50s. South winds 5 to 10 mph.
.TUESDAY...Mostly sunny with a chance of showers and a slight
chance of thunderstorms. Highs in the upper 70s. Minimum RH
52 percent. Southwest winds 5 to 10 mph.
*The AGL Mixing Height is calculated from an average elevation for
the entire Forecast Zone and should only be used as a guide.
For a specific AGL Mixing Height a Spot Forecast will be needed.
$$
TNZ068-221945-
Loudon-
Including the cities of Lenoir City and Loudon
242 PM EDT Tue Apr 21 2026
Tonight Wed Wed Night Thu
Cloud Cover Pcldy Mclear Mclear Mclear
Temp (24h trend) 47-52 (+8) 79-84 (+4) 49-54 80-85
RH % (24h trend) 83-88 (-2) 25-30 (-7) 86-91 26-31
RH Recovery Excellent Excellent
AM 20FT Wnd (mph) SW 7 Lgt/Var
PM 20FT Wnd (mph) Lgt/Var W 7 Lgt/Var Lgt/Var
Transport Wnd (mph) SW 9 W 15 S 3 SW 10
Mixing Hgt(ft-agl) 330 8910 120 9120
Vent Rate (mph-ft) 2970 133650 360 91200
Max Dispersion Early 5 Very Poor 94 Good 3 Very Poor 47 Gen Good
Max Dispersion Late 4 Very Poor 116 Very Good1 Very Poor 86 Good
Category Day 1 5 1 4
Max LVORI Early 3 4 4 5
Max LVORI Late 4 2 6 2
Precip Chance (%) 0 0 0 0
Precip Type None None None None
Precip Duration
Precip Amount 0.00 0.00 0.00 0.00
Precip Begin
Precip End
Chance of Thunder (%) 0 0 0 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.THURSDAY NIGHT...Mostly clear. Lows in the mid 50s. South winds
less than 10 mph.
.FRIDAY...Mostly sunny. Highs in the lower 80s. Minimum RH
39 percent. Southwest winds less than 10 mph.
.FRIDAY NIGHT...Mostly cloudy with a chance of showers and
thunderstorms. Lows in the upper 50s. Southwest winds less than
10 mph.
.SATURDAY...Showers and a chance of thunderstorms. Highs in the
mid 70s. Minimum RH 70 percent. Southwest winds less than 10 mph.
.SATURDAY NIGHT...Partly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the mid 50s. North winds
less than 10 mph.
.SUNDAY...Partly sunny with a chance of showers and a slight
chance of thunderstorms. Highs around 80. Minimum RH 45 percent.
Northeast winds less than 10 mph.
.SUNDAY NIGHT...Mostly cloudy with a slight chance of showers.
Lows in the mid 50s. Southeast winds less than 10 mph.
.MONDAY...Partly sunny with a chance of showers and a slight
chance of thunderstorms. Highs around 80. Minimum RH 49 percent.
South winds less than 10 mph.
.MONDAY NIGHT...Mostly cloudy with showers likely and a chance of
thunderstorms. Lows in the upper 50s. South winds 5 to 10 mph.
.TUESDAY...Mostly sunny with a chance of showers and a slight
chance of thunderstorms. Highs in the upper 70s. Minimum RH
54 percent. Southwest winds 5 to 10 mph.
*The AGL Mixing Height is calculated from an average elevation for
the entire Forecast Zone and should only be used as a guide.
For a specific AGL Mixing Height a Spot Forecast will be needed.
$$
TNZ071-221945-
Northwest Blount-
Including the cities of Happy Valley, Maryville, and Alcoa
242 PM EDT Tue Apr 21 2026
Tonight Wed Wed Night Thu
Cloud Cover Pcldy Mclear Mclear Mclear
Temp (24h trend) 50-55 (+9) 78-83 (+4) 52-57 79-84
RH % (24h trend) 77-82 (+1) 25-30 (-6) 77-82 27-32
RH Recovery Excellent Excellent
AM 20FT Wnd (mph) SW 9 Lgt/Var
PM 20FT Wnd (mph) SW 8 W 9 Lgt/Var W 5
Transport Wnd (mph) SW 9 W 15 S 5 SW 9
Mixing Hgt(ft-agl) 320 8380 100 7830
Vent Rate (mph-ft) 2880 125700 500 70470
Max Dispersion Early 6 Very Poor 101 Very Good3 Very Poor 49 Gen Good
Max Dispersion Late 5 Very Poor 118 Very Good2 Very Poor 64 Good
Category Day 1 5 1 4
Max LVORI Early 3 3 3 4
Max LVORI Late 3 2 4 2
Precip Chance (%) 0 0 0 0
Precip Type None None None None
Precip Duration
Precip Amount 0.00 0.00 0.00 0.00
Precip Begin
Precip End
Chance of Thunder (%) 0 0 0 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.THURSDAY NIGHT...Mostly clear. Lows in the mid 50s. South winds
less than 10 mph.
.FRIDAY...Mostly sunny. Highs in the lower 80s. Minimum RH
39 percent. Southwest winds less than 10 mph.
.FRIDAY NIGHT...Mostly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows around 60. South winds less
than 10 mph.
.SATURDAY...Showers and a chance of thunderstorms. Highs in the
mid 70s. Minimum RH 69 percent. Southwest winds less than 10 mph.
.SATURDAY NIGHT...Mostly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the mid 50s. Northeast
winds less than 10 mph.
.SUNDAY...Partly sunny with a chance of showers and a slight
chance of thunderstorms. Highs in the upper 70s. Minimum RH
46 percent. North winds less than 10 mph.
.SUNDAY NIGHT...Mostly cloudy with a slight chance of showers.
Lows in the mid 50s. Southeast winds less than 10 mph.
.MONDAY...Partly sunny with a chance of showers and a slight
chance of thunderstorms. Highs around 80. Minimum RH 47 percent.
South winds less than 10 mph.
.MONDAY NIGHT...Mostly cloudy with showers likely and a chance of
thunderstorms. Lows around 60. South winds 5 to 10 mph.
.TUESDAY...Mostly sunny with a chance of showers and a slight
chance of thunderstorms. Highs in the upper 70s. Minimum RH
54 percent. Southwest winds 5 to 10 mph.
*The AGL Mixing Height is calculated from an average elevation for
the entire Forecast Zone and should only be used as a guide.
For a specific AGL Mixing Height a Spot Forecast will be needed.
$$
TNZ086-221945-
Northwest Monroe-
Including the cities of Sweetwater, Madisonville,
and Bullet Creek
242 PM EDT Tue Apr 21 2026
Tonight Wed Wed Night Thu
Cloud Cover Pcldy Mclear Mclear Mclear
Temp (24h trend) 48-53 (+7) 79-84 (+4) 51-56 80-85
RH % (24h trend) 80-85 (-3) 23-28 (-6) 83-88 24-29
RH Recovery Excellent Excellent
AM 20FT Wnd (mph) SW 5 Lgt/Var
PM 20FT Wnd (mph) Lgt/Var W 6 Lgt/Var Lgt/Var
Transport Wnd (mph) S 9 W 13 S 3 SW 9
Mixing Hgt(ft-agl) 320 8870 70 9030
Vent Rate (mph-ft) 2880 115310 210 81270
Max Dispersion Early 5 Very Poor 93 Good 3 Very Poor 55 Gen Good
Max Dispersion Late 5 Very Poor 104 Very Good2 Very Poor 69 Good
Category Day 1 5 1 4
Max LVORI Early 3 3 3 4
Max LVORI Late 4 2 5 2
Precip Chance (%) 0 0 0 0
Precip Type None None None None
Precip Duration
Precip Amount 0.00 0.00 0.00 0.00
Precip Begin
Precip End
Chance of Thunder (%) 0 0 0 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.THURSDAY NIGHT...Mostly clear. Lows in the mid 50s. South winds
less than 10 mph.
.FRIDAY...Mostly sunny. Highs in the lower 80s. Minimum RH
36 percent. Southwest winds less than 10 mph.
.FRIDAY NIGHT...Mostly cloudy with a chance of showers and
thunderstorms. Lows in the upper 50s. South winds less than
10 mph.
.SATURDAY...Showers and a chance of thunderstorms. Highs in the
mid 70s. Minimum RH 67 percent. Southwest winds less than 10 mph.
.SATURDAY NIGHT...Partly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the mid 50s. Northeast
winds less than 10 mph.
.SUNDAY...Partly sunny with a chance of showers and a slight
chance of thunderstorms. Highs in the upper 70s. Minimum RH
45 percent. North winds less than 10 mph.
.SUNDAY NIGHT...Partly cloudy with a slight chance of showers.
Lows in the mid 50s. Southeast winds less than 10 mph.
.MONDAY...Partly sunny with a chance of showers and a slight
chance of thunderstorms. Highs around 80. Minimum RH 46 percent.
South winds less than 10 mph.
.MONDAY NIGHT...Mostly cloudy with showers likely and a chance of
thunderstorms. Lows in the upper 50s. South winds 5 to 10 mph.
.TUESDAY...Mostly sunny with a chance of showers and a slight
chance of thunderstorms. Highs in the upper 70s. Minimum RH
53 percent. Southwest winds 5 to 10 mph.
*The AGL Mixing Height is calculated from an average elevation for
the entire Forecast Zone and should only be used as a guide.
For a specific AGL Mixing Height a Spot Forecast will be needed.
$$
TNZ083-221945-
Rhea-
Including the cities of Dayton, Evensville, Old Washington,
Grandview, and Spring City
242 PM EDT Tue Apr 21 2026
Tonight Wed Wed Night Thu
Cloud Cover Pcldy Mclear Mclear Mclear
Temp (24h trend) 48-53 (+7) 79-84 (+4) 50-55 79-84
RH % (24h trend) 84-89 (+3) 24-29 (-7) 84-89 26-31
RH Recovery Excellent Excellent
AM 20FT Wnd (mph) SW 5 Lgt/Var
PM 20FT Wnd (mph) SW 5 W 5 Lgt/Var Lgt/Var
Transport Wnd (mph) SW 6 W 14 W 2 SW 10
Mixing Hgt(ft-agl) 160 9380 60 9830
Vent Rate (mph-ft) 960 131320 120 98300
Max Dispersion Early 5 Very Poor 104 Very Good5 Very Poor 59 Gen Good
Max Dispersion Late 5 Very Poor 115 Very Good2 Very Poor 93 Good
Category Day 1 5 1 4
Max LVORI Early 3 4 3 5
Max LVORI Late 4 2 5 2
Precip Chance (%) 0 0 0 0
Precip Type None None None None
Precip Duration
Precip Amount 0.00 0.00 0.00 0.00
Precip Begin
Precip End
Chance of Thunder (%) 0 0 0 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.THURSDAY NIGHT...Mostly clear. Lows in the mid 50s. Southwest
winds less than 10 mph.
.FRIDAY...Mostly sunny. Highs in the lower 80s. Minimum RH
41 percent. Southwest winds less than 10 mph.
.FRIDAY NIGHT...Mostly cloudy with showers likely and a chance of
thunderstorms. Lows in the upper 50s. Southwest winds less than
10 mph.
.SATURDAY...Showers and a chance of thunderstorms. Highs in the
mid 70s. Minimum RH 71 percent. Southwest winds less than 10 mph.
.SATURDAY NIGHT...Partly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the mid 50s. North winds
less than 10 mph.
.SUNDAY...Mostly sunny with a chance of showers and a slight
chance of thunderstorms. Highs in the upper 70s. Minimum RH
46 percent. East winds less than 10 mph.
.SUNDAY NIGHT...Mostly cloudy with a slight chance of showers.
Lows in the mid 50s. East winds less than 10 mph.
.MONDAY...Partly sunny with a chance of showers and a slight
chance of thunderstorms. Highs in the upper 70s. Minimum RH
54 percent. South winds less than 10 mph.
.MONDAY NIGHT...Mostly cloudy with showers likely and a chance of
thunderstorms. Lows in the upper 50s. South winds 5 to 10 mph.
.TUESDAY...Mostly sunny with a chance of showers and
thunderstorms. Highs in the upper 70s. Minimum RH 51 percent.
Southwest winds 5 to 10 mph.
*The AGL Mixing Height is calculated from an average elevation for
the entire Forecast Zone and should only be used as a guide.
For a specific AGL Mixing Height a Spot Forecast will be needed.
$$
TNZ084-221945-
Meigs-
Including the city of Big Spring
242 PM EDT Tue Apr 21 2026
Tonight Wed Wed Night Thu
Cloud Cover Pcldy Mclear Mclear Mclear
Temp (24h trend) 46-51 (+7) 81-86 (+4) 48-53 81-86
RH % (24h trend) 88-93 (-3) 22-27 (-8) 90-95 24-29
RH Recovery Excellent Excellent
AM 20FT Wnd (mph) Lgt/Var Lgt/Var
PM 20FT Wnd (mph) Lgt/Var W 5 Lgt/Var Lgt/Var
Transport Wnd (mph) SW 7 W 13 SW 2 SW 12
Mixing Hgt(ft-agl) 340 9420 160 10390
Vent Rate (mph-ft) 2380 122460 320 124680
Max Dispersion Early 5 Very Poor 95 Good 3 Very Poor 52 Gen Good
Max Dispersion Late 4 Very Poor 106 Very Good1 Very Poor 103 Very Good
Category Day 1 5 1 4
Max LVORI Early 3 5 4 6
Max LVORI Late 5 2 7 2
Precip Chance (%) 0 0 0 0
Precip Type None None None None
Precip Duration
Precip Amount 0.00 0.00 0.00 0.00
Precip Begin
Precip End
Chance of Thunder (%) 0 0 0 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.THURSDAY NIGHT...Mostly clear. Lows in the mid 50s. Southwest
winds less than 10 mph.
.FRIDAY...Mostly sunny. Highs in the mid 80s. Minimum RH
37 percent. Southwest winds less than 10 mph.
.FRIDAY NIGHT...Mostly cloudy with showers likely and a chance of
thunderstorms. Lows in the upper 50s. Southwest winds less than
10 mph.
.SATURDAY...Showers and a chance of thunderstorms. Highs in the
mid 70s. Minimum RH 68 percent. Southwest winds less than 10 mph.
.SATURDAY NIGHT...Partly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the mid 50s. Light and
variable wind.
.SUNDAY...Partly sunny with a chance of showers and a slight
chance of thunderstorms. Highs in the lower 80s. Minimum RH
43 percent. Northeast winds less than 10 mph.
.SUNDAY NIGHT...Partly cloudy with a slight chance of showers.
Lows in the mid 50s. Southeast winds less than 10 mph.
.MONDAY...Partly sunny with a chance of showers and a slight
chance of thunderstorms. Highs in the upper 70s. Minimum RH
50 percent. South winds less than 10 mph.
.MONDAY NIGHT...Mostly cloudy with showers likely and a chance of
thunderstorms. Lows in the upper 50s. South winds less than
10 mph.
.TUESDAY...Mostly sunny with a chance of showers and a slight
chance of thunderstorms. Highs around 80. Minimum RH 49 percent.
Southwest winds 5 to 10 mph.
*The AGL Mixing Height is calculated from an average elevation for
the entire Forecast Zone and should only be used as a guide.
For a specific AGL Mixing Height a Spot Forecast will be needed.
$$
TNZ085-221945-
McMinn-
Including the cities of Athens, Clear Water, Dentville,
and Etowah
242 PM EDT Tue Apr 21 2026
Tonight Wed Wed Night Thu
Cloud Cover Pcldy Mclear Mclear Mclear
Temp (24h trend) 46-51 (+7) 80-85 (+4) 49-54 81-86
RH % (24h trend) 87-92 (-2) 21-26 (-7) 90-95 23-28
RH Recovery Excellent Excellent
AM 20FT Wnd (mph) SW 5 Lgt/Var
PM 20FT Wnd (mph) S 5 W 6 Lgt/Var Lgt/Var
Transport Wnd (mph) S 8 W 13 S 3 SW 10
Mixing Hgt(ft-agl) 300 9190 90 10260
Vent Rate (mph-ft) 2400 119470 270 102600
Max Dispersion Early 4 Very Poor 91 Good 3 Very Poor 55 Gen Good
Max Dispersion Late 3 Very Poor 103 Very Good1 Very Poor 94 Good
Category Day 1 5 1 4
Max LVORI Early 3 4 4 5
Max LVORI Late 4 2 7 2
Precip Chance (%) 0 0 0 0
Precip Type None None None None
Precip Duration
Precip Amount 0.00 0.00 0.00 0.00
Precip Begin
Precip End
Chance of Thunder (%) 0 0 0 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.THURSDAY NIGHT...Mostly clear. Lows in the mid 50s. South winds
less than 10 mph.
.FRIDAY...Mostly sunny. Highs in the mid 80s. Minimum RH
35 percent. Southwest winds less than 10 mph.
.FRIDAY NIGHT...Mostly cloudy with a chance of showers and
thunderstorms. Lows in the upper 50s. South winds less than
10 mph.
.SATURDAY...Showers and a chance of thunderstorms. Highs in the
mid 70s. Minimum RH 66 percent. Southwest winds less than 10 mph.
.SATURDAY NIGHT...Partly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the mid 50s. Northeast
winds less than 10 mph.
.SUNDAY...Partly sunny with a chance of showers and a slight
chance of thunderstorms. Highs around 80. Minimum RH 43 percent.
North winds less than 10 mph.
.SUNDAY NIGHT...Partly cloudy with a slight chance of showers.
Lows in the mid 50s. Southeast winds less than 10 mph.
.MONDAY...Partly sunny with a chance of showers and a slight
chance of thunderstorms. Highs around 80. Minimum RH 47 percent.
South winds less than 10 mph.
.MONDAY NIGHT...Mostly cloudy with showers likely and a chance of
thunderstorms. Lows in the upper 50s. South winds 5 to 10 mph.
.TUESDAY...Mostly sunny with a chance of showers and a slight
chance of thunderstorms. Highs around 80. Minimum RH 50 percent.
Southwest winds 5 to 10 mph.
*The AGL Mixing Height is calculated from an average elevation for
the entire Forecast Zone and should only be used as a guide.
For a specific AGL Mixing Height a Spot Forecast will be needed.
$$
TNZ099-221945-
Hamilton-
Including the cities of Chattanooga, Lookout Mountain,
and Signal Mountain
242 PM EDT Tue Apr 21 2026
Tonight Wed Wed Night Thu
Cloud Cover Pcldy Mclear Mclear Mclear
Temp (24h trend) 51-56 (+7) 80-85 (+3) 52-57 80-85
RH % (24h trend) 77-82 (-4) 23-28 (-5) 81-86 25-30
RH Recovery Excellent Excellent
AM 20FT Wnd (mph) Lgt/Var Lgt/Var
PM 20FT Wnd (mph) SW 5 W 5 Lgt/Var SW 5
Transport Wnd (mph) SW 6 W 12 SW 2 SW 10
Mixing Hgt(ft-agl) 200 9310 50 10200
Vent Rate (mph-ft) 1200 111720 100 102000
Max Dispersion Early 4 Very Poor 93 Good 3 Very Poor 59 Gen Good
Max Dispersion Late 3 Very Poor 102 Very Good1 Very Poor 92 Good
Category Day 1 4 1 4
Max LVORI Early 3 4 3 4
Max LVORI Late 4 2 5 2
Precip Chance (%) 0 0 0 0
Precip Type None None None None
Precip Duration
Precip Amount 0.00 0.00 0.00 0.00
Precip Begin
Precip End
Chance of Thunder (%) 0 0 0 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.THURSDAY NIGHT...Mostly clear. Lows in the upper 50s. South
winds less than 10 mph.
.FRIDAY...Mostly sunny. Highs in the lower 80s. Minimum RH
38 percent. Southwest winds less than 10 mph.
.FRIDAY NIGHT...Mostly cloudy with showers likely and a chance of
thunderstorms. Lows around 60. Southwest winds less than 10 mph.
.SATURDAY...Showers and a chance of thunderstorms. Highs in the
mid 70s. Minimum RH 68 percent. Southwest winds less than 10 mph.
.SATURDAY NIGHT...Partly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the upper 50s. North
winds less than 10 mph.
.SUNDAY...Partly sunny with a chance of showers and a slight
chance of thunderstorms. Highs around 80. Minimum RH 44 percent.
Northeast winds less than 10 mph.
.SUNDAY NIGHT...Partly cloudy with a slight chance of showers and
thunderstorms. Lows in the upper 50s. Southeast winds less than
10 mph.
.MONDAY...Partly sunny with a chance of showers and a slight
chance of thunderstorms. Highs in the upper 70s. Minimum RH
53 percent. South winds less than 10 mph.
.MONDAY NIGHT...Mostly cloudy with showers likely and a chance of
thunderstorms. Lows in the lower 60s. South winds 5 to 10 mph.
.TUESDAY...Mostly sunny with a chance of showers and a slight
chance of thunderstorms. Highs around 80. Minimum RH 49 percent.
Southwest winds 5 to 10 mph.
*The AGL Mixing Height is calculated from an average elevation for
the entire Forecast Zone and should only be used as a guide.
For a specific AGL Mixing Height a Spot Forecast will be needed.
$$
TNZ100-221945-
Bradley-
Including the cities of Cleveland and Tasso
242 PM EDT Tue Apr 21 2026
Tonight Wed Wed Night Thu
Cloud Cover Pcldy Mclear Mclear Mclear
Temp (24h trend) 48-53 (+7) 80-85 (+3) 50-55 81-86
RH % (24h trend) 81-86 (-9) 21-26 (-6) 86-91 22-27
RH Recovery Excellent Excellent
AM 20FT Wnd (mph) Lgt/Var Lgt/Var
PM 20FT Wnd (mph) Lgt/Var W 5 Lgt/Var Lgt/Var
Transport Wnd (mph) S 8 W 12 S 2 SW 10
Mixing Hgt(ft-agl) 320 9300 90 10270
Vent Rate (mph-ft) 2560 111600 180 102700
Max Dispersion Early 4 Very Poor 82 Good 3 Very Poor 54 Gen Good
Max Dispersion Late 3 Very Poor 99 Good 1 Very Poor 92 Good
Category Day 1 4 1 4
Max LVORI Early 3 4 4 5
Max LVORI Late 4 2 6 2
Precip Chance (%) 0 0 0 0
Precip Type None None None None
Precip Duration
Precip Amount 0.00 0.00 0.00 0.00
Precip Begin
Precip End
Chance of Thunder (%) 0 0 0 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.THURSDAY NIGHT...Mostly clear. Lows in the mid 50s. South winds
less than 10 mph.
.FRIDAY...Mostly sunny. Highs in the mid 80s. Minimum RH
34 percent. Southwest winds less than 10 mph.
.FRIDAY NIGHT...Mostly cloudy with a chance of showers and
thunderstorms. Lows in the upper 50s. South winds less than
10 mph.
.SATURDAY...Showers and a chance of thunderstorms. Highs in the
mid 70s. Minimum RH 63 percent. Southwest winds less than 10 mph.
.SATURDAY NIGHT...Partly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the mid 50s. North winds
less than 10 mph.
.SUNDAY...Partly sunny with a chance of showers and a slight
chance of thunderstorms. Highs around 80. Minimum RH 41 percent.
North winds less than 10 mph.
.SUNDAY NIGHT...Partly cloudy with a slight chance of showers.
Lows in the mid 50s. Southeast winds less than 10 mph.
.MONDAY...Partly sunny with a chance of showers and a slight
chance of thunderstorms. Highs in the upper 70s. Minimum RH
47 percent. South winds less than 10 mph.
.MONDAY NIGHT...Mostly cloudy with showers likely and a chance of
thunderstorms. Lows around 60. South winds 5 to 10 mph.
.TUESDAY...Mostly sunny with a chance of showers and a slight
chance of thunderstorms. Highs in the lower 80s. Minimum RH
49 percent. Southwest winds 5 to 10 mph.
*The AGL Mixing Height is calculated from an average elevation for
the entire Forecast Zone and should only be used as a guide.
For a specific AGL Mixing Height a Spot Forecast will be needed.
$$
TNZ101-221945-
West Polk-
Including the cities of Conasauga, Archville, Benton, Parksville,
and Reliance
242 PM EDT Tue Apr 21 2026
Tonight Wed Wed Night Thu
Cloud Cover Pcldy Mclear Mclear Mclear
Temp (24h trend) 50-55 (+6) 79-84 (+3) 52-57 80-85
RH % (24h trend) 74-79 (-1) 21-26 (-4) 76-81 22-27
RH Recovery Excellent Excellent
AM 20FT Wnd (mph) Lgt/Var Lgt/Var
PM 20FT Wnd (mph) S 5 W 5 Lgt/Var Lgt/Var
Transport Wnd (mph) S 7 W 12 S 5 SW 9
Mixing Hgt(ft-agl) 320 8830 70 10010
Vent Rate (mph-ft) 2240 105960 350 90090
Max Dispersion Early 5 Very Poor 85 Good 3 Very Poor 55 Gen Good
Max Dispersion Late 4 Very Poor 96 Good 2 Very Poor 82 Good
Category Day 1 4 1 4
Max LVORI Early 2 3 3 3
Max LVORI Late 3 2 4 2
Precip Chance (%) 0 0 0 0
Precip Type None None None None
Precip Duration
Precip Amount 0.00 0.00 0.00 0.00
Precip Begin
Precip End
Chance of Thunder (%) 0 0 0 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.THURSDAY NIGHT...Mostly clear. Lows in the upper 50s. South
winds less than 10 mph.
.FRIDAY...Mostly sunny. Highs in the lower 80s. Minimum RH
33 percent. Southwest winds less than 10 mph.
.FRIDAY NIGHT...Mostly cloudy with a chance of showers and
thunderstorms. Lows in the upper 50s. South winds less than
10 mph.
.SATURDAY...Showers and a chance of thunderstorms. Highs in the
mid 70s. Minimum RH 61 percent. Southwest winds less than 10 mph.
.SATURDAY NIGHT...Partly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the mid 50s. Northeast
winds less than 10 mph.
.SUNDAY...Partly sunny with a chance of showers and a slight
chance of thunderstorms. Highs around 80. Minimum RH 40 percent.
North winds less than 10 mph.
.SUNDAY NIGHT...Mostly cloudy with a slight chance of showers.
Lows in the upper 50s. Southeast winds less than 10 mph.
.MONDAY...Partly sunny with a chance of showers and a slight
chance of thunderstorms. Highs in the upper 70s. Minimum RH
44 percent. South winds less than 10 mph.
.MONDAY NIGHT...Mostly cloudy with showers likely and a chance of
thunderstorms. Lows around 60. South winds 5 to 10 mph.
.TUESDAY...Mostly sunny with a chance of showers and a slight
chance of thunderstorms. Highs in the upper 70s. Minimum RH
48 percent. Southwest winds less than 10 mph.
*The AGL Mixing Height is calculated from an average elevation for
the entire Forecast Zone and should only be used as a guide.
For a specific AGL Mixing Height a Spot Forecast will be needed.
$$
TNZ082-221945-
Bledsoe-
Including the cities of Old Cumberland, Palio, Melvine,
Mount Crest, Pikeville, and Brayton
142 PM CDT Tue Apr 21 2026
Tonight Wed Wed Night Thu
Cloud Cover Pcldy Mclear Mclear Mclear
Temp (24h trend) 50-55 (+8) 76-81 (+2) 52-57 77-82
RH % (24h trend) 72-77 (-4) 25-30 (-4) 75-80 27-32
RH Recovery Excellent Excellent
AM 20FT Wnd (mph) W 5 S 5
PM 20FT Wnd (mph) SW 6 W 6 Lgt/Var S 5
Transport Wnd (mph) W 8 W 15 W 7 SW 10
Mixing Hgt(ft-agl) 8880 9720
Vent Rate (mph-ft) 0 133200 0 97200
Max Dispersion Early 3 Very Poor 108 Very Good2 Very Poor 74 Good
Max Dispersion Late 3 Very Poor 115 Very Good2 Very Poor 87 Good
Category Day 1 5 1 4
Max LVORI Early 3 4 3 4
Max LVORI Late 3 2 4 2
Precip Chance (%) 0 0 0 0
Precip Type None None None None
Precip Duration
Precip Amount 0.00 0.00 0.00 0.00
Precip Begin
Precip End
Chance of Thunder (%) 0 0 0 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.THURSDAY NIGHT...Mostly clear. Lows in the mid 50s. South winds
less than 10 mph.
.FRIDAY...Mostly sunny with a slight chance of showers. Highs
around 80. Minimum RH 42 percent. Southwest winds less than
10 mph.
.FRIDAY NIGHT...Mostly cloudy with showers likely and a chance of
thunderstorms. Lows in the upper 50s. Southwest winds less than
10 mph.
.SATURDAY...Showers and a chance of thunderstorms. Highs in the
lower 70s. Minimum RH 71 percent. West winds less than 10 mph.
.SATURDAY NIGHT...Partly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the mid 50s. North winds
less than 10 mph.
.SUNDAY...Partly sunny with a chance of showers and a slight
chance of thunderstorms. Highs in the upper 70s. Minimum RH
45 percent. East winds less than 10 mph.
.SUNDAY NIGHT...Mostly cloudy with a slight chance of showers and
thunderstorms. Lows in the mid 50s. Southeast winds less than
10 mph.
.MONDAY...Partly sunny with a chance of showers and a slight
chance of thunderstorms. Highs in the mid 70s. Minimum RH
56 percent. South winds less than 10 mph.
.MONDAY NIGHT...Mostly cloudy with showers likely and a chance of
thunderstorms. Lows in the upper 50s. South winds 5 to 10 mph.
.TUESDAY...Mostly sunny with a chance of showers and
thunderstorms. Highs in the mid 70s. Minimum RH 50 percent.
Southwest winds 5 to 10 mph.
*The AGL Mixing Height is calculated from an average elevation for
the entire Forecast Zone and should only be used as a guide.
For a specific AGL Mixing Height a Spot Forecast will be needed.
$$
TNZ081-221945-
Sequatchie-
Including the cities of Cagle, Dunlap, Cartwright, and Lone Oak
142 PM CDT Tue Apr 21 2026
Tonight Wed Wed Night Thu
Cloud Cover Pcldy Mclear Mclear Mclear
Temp (24h trend) 51-56 (+7) 76-81 (+2) 53-58 76-81
RH % (24h trend) 70-75 (-5) 26-31 (-4) 73-78 30-35
RH Recovery Excellent Excellent
AM 20FT Wnd (mph) W 5 Lgt/Var
PM 20FT Wnd (mph) SW 5 W 5 Lgt/Var Lgt/Var
Transport Wnd (mph) SW 8 W 13 W 8 SW 10
Mixing Hgt(ft-agl) 8950 9510
Vent Rate (mph-ft) 0 116350 0 95100
Max Dispersion Early 2 Very Poor 102 Very Good2 Very Poor 79 Good
Max Dispersion Late 2 Very Poor 106 Very Good1 Very Poor 89 Good
Category Day 1 5 1 4
Max LVORI Early 2 3 3 4
Max LVORI Late 3 1 4 2
Precip Chance (%) 0 0 0 0
Precip Type None None None None
Precip Duration
Precip Amount 0.00 0.00 0.00 0.00
Precip Begin
Precip End
Chance of Thunder (%) 0 0 0 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.THURSDAY NIGHT...Mostly clear. Lows in the upper 50s. South
winds less than 10 mph.
.FRIDAY...Mostly sunny with a slight chance of showers. Highs
around 80. Minimum RH 42 percent. Southwest winds less than
10 mph.
.FRIDAY NIGHT...Mostly cloudy with showers likely and a chance of
thunderstorms. Lows in the upper 50s. Southwest winds less than
10 mph.
.SATURDAY...Showers and a chance of thunderstorms. Highs in the
lower 70s. Minimum RH 73 percent. West winds less than 10 mph.
.SATURDAY NIGHT...Partly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the mid 50s. North winds
less than 10 mph.
.SUNDAY...Partly sunny with a chance of showers and a slight
chance of thunderstorms. Highs in the upper 70s. Minimum RH
47 percent. East winds less than 10 mph.
.SUNDAY NIGHT...Mostly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the upper 50s. Southeast
winds less than 10 mph.
.MONDAY...Partly sunny with a chance of showers and a slight
chance of thunderstorms. Highs in the mid 70s. Minimum RH
57 percent. South winds less than 10 mph.
.MONDAY NIGHT...Mostly cloudy with showers likely and a chance of
thunderstorms. Lows around 60. South winds 5 to 10 mph.
.TUESDAY...Mostly sunny with a chance of showers and
thunderstorms. Highs in the mid 70s. Minimum RH 52 percent.
Southwest winds 5 to 10 mph.
*The AGL Mixing Height is calculated from an average elevation for
the entire Forecast Zone and should only be used as a guide.
For a specific AGL Mixing Height a Spot Forecast will be needed.
$$
TNZ098-221945-
Marion-
Including the cities of South Pittsburg, Haletown (Guild),
Jasper, Martin Springs, Whitwell, Powells Crossroads,
and Monteagle
142 PM CDT Tue Apr 21 2026
Tonight Wed Wed Night Thu
Cloud Cover Pcldy Mclear Mclear Mclear
Temp (24h trend) 52-57 (+6) 77-82 (+2) 53-58 77-82
RH % (24h trend) 69-74 (-5) 25-30 (-3) 73-78 30-35
RH Recovery Excellent Excellent
AM 20FT Wnd (mph) Lgt/Var Lgt/Var
PM 20FT Wnd (mph) SW 5 W 5 Lgt/Var Lgt/Var
Transport Wnd (mph) W 5 W 13 SW 3 SW 10
Mixing Hgt(ft-agl) 40 8740 9130
Vent Rate (mph-ft) 200 113620 0 91300
Max Dispersion Early 4 Very Poor 91 Good 2 Very Poor 72 Good
Max Dispersion Late 3 Very Poor 95 Good 1 Very Poor 85 Good
Category Day 1 4 1 4
Max LVORI Early 2 3 3 4
Max LVORI Late 3 2 4 2
Precip Chance (%) 0 0 0 0
Precip Type None None None None
Precip Duration
Precip Amount 0.00 0.00 0.00 0.00
Precip Begin
Precip End
Chance of Thunder (%) 0 0 0 0
Remarks...None.
.FORECAST FOR DAYS 3 THROUGH 7...
.THURSDAY NIGHT...Mostly clear. Lows in the upper 50s. South
winds less than 10 mph.
.FRIDAY...Mostly sunny with a slight chance of showers. Highs in
the lower 80s. Minimum RH 41 percent. Southwest winds less than
10 mph.
.FRIDAY NIGHT...Mostly cloudy with showers likely and a chance of
thunderstorms. Lows around 60. Southwest winds less than 10 mph.
.SATURDAY...Showers and a chance of thunderstorms. Highs in the
lower 70s. Minimum RH 70 percent. Southwest winds less than
10 mph.
.SATURDAY NIGHT...Partly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the upper 50s. North
winds less than 10 mph.
.SUNDAY...Partly sunny with a chance of showers and a slight
chance of thunderstorms. Highs in the upper 70s. Minimum RH
46 percent. East winds less than 10 mph.
.SUNDAY NIGHT...Mostly cloudy with a chance of showers and a
slight chance of thunderstorms. Lows in the upper 50s. Southeast
winds less than 10 mph.
.MONDAY...Partly sunny with a chance of showers and a slight
chance of thunderstorms. Highs in the upper 70s. Minimum RH
56 percent. South winds less than 10 mph.
.MONDAY NIGHT...Mostly cloudy with showers likely and a chance of
thunderstorms. Lows in the lower 60s. South winds 5 to 10 mph.
.TUESDAY...Mostly sunny with a chance of showers and
thunderstorms. Highs in the upper 70s. Minimum RH 51 percent.
Southwest winds 5 to 10 mph.
*The AGL Mixing Height is calculated from an average elevation for
the entire Forecast Zone and should only be used as a guide.
For a specific AGL Mixing Height a Spot Forecast will be needed.
$$