Point Forecast Matrices
Issued by NWS Knoxville/Tri Cities, TN
Issued by NWS Knoxville/Tri Cities, TN
485 FOUS54 KMRX 110217 PFMMRX Point Forecast Matrices National Weather Service Morristown TN 917 PM EST Wed Dec 10 2025 TNZ017-110900- Tri Cities Airport-Sullivan TN 36.50N 82.41W Elev. 1536 ft 917 PM EST Wed Dec 10 2025 Date 12/10/25 Thu 12/11/25 Fri 12/12/25 Sat EST 3hrly 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 28 35 26 46 30 Temp 35 32 30 29 31 33 34 31 28 27 28 30 36 44 46 42 38 36 32 30 Dewpt 32 29 27 25 26 25 24 24 24 25 25 26 29 33 33 35 35 34 32 30 RH 89 88 88 85 81 72 66 75 85 92 88 85 75 65 60 76 89 92100100 Wind Dir W W W W W W W SW SW S SE SE SW SW SW SW W W W W Wind Spd 14 12 11 10 11 10 9 3 2 2 2 2 5 8 8 5 5 5 5 5 Wind Gust 26 Clouds OV OV B2 B2 B2 B2 B2 SC B1 OV OV B2 B2 B1 B1 B2 B2 B2 B1 B1 PoP 12hr 50 20 30 30 5 QPF 12hr 0.02 0 0.01 0.02 0 Flurries S Rain shwrs C C Snowshwrs C C C S C C C Wind chill 26 23 21 20 22 25 27 Min chill 22 19 17 26 26 25 26 38 31 24 Date 12/13 Sun 12/14/25 Mon 12/15/25 Tue 12/16/25 Wed 12/17/25 EST 6hrly 13 19 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 46 25 30 11 36 19 44 28 49 Temp 43 38 32 26 28 19 13 11 33 29 22 20 41 35 30 30 47 42 Dewpt 32 29 29 23 13 6 5 5 10 13 13 13 19 20 22 24 33 34 PWind Dir W W NW N N S SW SE S Wind Char LT LT GN LT LT LT LT LT LT Avg Clouds B1 SC B1 B2 B1 FW FW FW FW FW FW SC SC SC B1 B1 B1 B1 PoP 12hr 0 30 10 5 0 10 10 10 20 Rain shwrs S S Snowshwrs S C $$ TNZ071-110900- Knoxville McGhee Tyson Airport-Blount TN 35.80N 83.98W Elev. 979 ft 917 PM EST Wed Dec 10 2025 Date 12/10/25 Thu 12/11/25 Fri 12/12/25 Sat EST 3hrly 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 30 41 31 54 32 Temp 38 35 33 32 34 39 40 35 33 32 33 35 42 52 54 48 42 38 34 32 Dewpt 30 29 28 27 27 26 25 26 26 26 26 27 32 35 36 37 37 35 33 31 RH 73 78 82 81 75 59 55 69 75 78 75 72 67 52 50 65 82 89 96 96 Wind Dir W W W W W W W SW SW S SW SW SW SW SW SW W W W W Wind Spd 11 6 5 5 5 6 5 3 2 2 5 6 10 13 11 6 5 3 2 2 Wind Gust 23 Clouds B2 OV OV B2 B1 B1 SC FW B1 B1 B2 B1 SC SC SC SC SC SC B1 B1 PoP 12hr 20 10 5 5 0 QPF 12hr 0.01 0 0 0 0 Flurries S S S Rain shwrs Snowshwrs S Sprinkles S Wind chill 31 29 26 29 36 Min chill 29 26 24 32 31 28 31 36 32 Date 12/13 Sun 12/14/25 Mon 12/15/25 Tue 12/16/25 Wed 12/17/25 EST 6hrly 13 19 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 51 28 34 16 40 25 48 33 53 Temp 48 43 35 28 33 24 18 16 37 33 27 25 45 39 35 34 50 47 Dewpt 34 32 32 25 15 8 8 8 13 17 17 16 21 24 25 29 36 38 PWind Dir W NW N NE N SW SW S SW Wind Char LT LT GN LT LT LT LT LT LT Avg Clouds SC FW SC B1 SC FW FW FW FW FW FW SC SC SC B1 B1 B1 B1 PoP 12hr 0 20 5 0 0 10 10 10 30 Rain shwrs S S S C Snowshwrs S $$ TNZ036-110900- Oak Ridge-Anderson TN 36.00N 84.24W Elev. 913 ft 917 PM EST Wed Dec 10 2025 Date 12/10/25 Thu 12/11/25 Fri 12/12/25 Sat EST 3hrly 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 29 41 30 54 30 Temp 36 34 32 30 34 39 40 34 32 31 32 32 40 51 53 47 40 36 32 30 Dewpt 29 28 28 26 27 26 25 25 26 27 28 27 32 35 37 37 36 34 32 30 RH 75 78 85 85 75 59 55 69 78 85 85 81 73 54 54 68 85 92100100 Wind Dir W W W W W W W SW SW SW SW SW SW SW SW W W W W NW Wind Spd 8 5 4 3 4 5 3 2 2 2 2 4 6 10 8 3 3 2 2 2 Wind Gust 20 16 Clouds B2 OV B2 B2 B2 SC FW FW B1 B1 B2 B1 SC SC SC SC SC SC B1 B1 PoP 12hr 20 10 10 5 0 QPF 12hr 0.01 0 0 0 0 Flurries S Rain shwrs S Snowshwrs S S S Wind chill 30 Min chill 29 26 24 34 31 27 29 36 30 Date 12/13 Sun 12/14/25 Mon 12/15/25 Tue 12/16/25 Wed 12/17/25 EST 6hrly 13 19 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 49 26 33 15 39 24 47 32 50 Temp 46 41 33 26 32 23 18 15 36 31 25 25 44 38 34 33 48 44 Dewpt 34 32 29 22 13 7 7 7 12 16 16 16 21 24 26 29 36 38 PWind Dir W NW N NE E SW SW SW SW Wind Char LT LT LT LT LT LT LT LT LT Avg Clouds SC FW SC B1 SC CL FW FW FW FW FW SC SC SC B1 B2 B2 B1 PoP 12hr 0 20 5 0 0 10 10 20 30 Rain shwrs S S S S C Snowshwrs S $$ TNZ099-110900- Chattanooga Airport-Hamilton TN 35.03N 85.22W Elev. 688 ft 917 PM EST Wed Dec 10 2025 Date 12/10/25 Thu 12/11/25 Fri 12/12/25 Sat EST 3hrly 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 29 46 30 58 32 Temp 39 35 31 29 36 43 46 39 33 31 31 31 43 55 58 50 43 39 34 32 Dewpt 31 28 27 27 27 26 26 27 28 28 28 29 33 37 39 41 40 38 34 32 RH 73 75 85 92 69 51 45 62 82 88 88 92 67 51 49 71 89 96100100 Wind Dir NW NW NW NW NW W W SW S S S S SW SW W W W NW NW N Wind Spd 10 5 4 3 4 5 5 2 2 2 3 4 6 9 9 3 2 2 2 2 Clouds SC B1 B1 SC SC FW FW FW FW FW FW FW FW FW FW FW FW FW SC SC PoP 12hr 5 5 0 0 0 QPF 12hr 0 0 0 0 0 Wind chill 32 Min chill 30 25 28 39 31 25 29 39 32 Date 12/13 Sun 12/14/25 Mon 12/15/25 Tue 12/16/25 Wed 12/17/25 EST 6hrly 13 19 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 54 30 38 19 43 24 50 35 54 Temp 50 46 38 30 37 28 21 19 39 35 27 25 46 42 37 37 51 48 Dewpt 35 36 35 25 15 10 9 10 13 18 18 18 22 28 30 31 38 42 PWind Dir NW NW N N E S S S S Wind Char LT LT GN LT LT LT LT LT LT Avg Clouds SC FW SC SC FW CL CL CL FW FW FW SC SC SC B1 B2 B2 B1 PoP 12hr 5 20 5 0 0 10 5 10 30 Rain shwrs S S C C Snowshwrs S $$ NCZ060-110900- Tusquitee RAWS-Forestry-Cherokee NC 35.07N 84.12W Elev. 1600 ft 917 PM EST Wed Dec 10 2025 Date 12/10/25 Thu 12/11/25 Fri 12/12/25 Sat EST 3hrly 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 26 42 26 54 29 Temp 36 32 29 27 31 39 41 34 28 27 28 28 38 52 53 45 38 35 31 29 Dewpt 30 26 25 24 25 24 22 24 24 24 23 24 29 33 35 36 36 35 31 29 RH 79 78 85 88 78 54 46 66 85 88 81 85 70 48 50 70 92100100100 Max/Min RH 92 46 88 47 100 Wind Dir NW NW NW NW NW NW NW W N N SE SE SW W W W W NW NW NW Wind Dir Deg 30 30 30 30 30 29 29 27 0 0 13 14 21 24 25 26 28 30 31 32 Wind Spd 10 8 6 5 6 6 5 1 0 0 1 1 3 6 5 2 2 2 1 1 Wind Gust 27 23 20 19 Clouds B1 B2 B2 B2 B1 FW FW FW FW FW SC SC SC FW FW FW FW FW SC SC Clouds (%) 68 86 87 74 51 17 23 12 22 22 43 29 32 19 20 25 21 23 45 40 Vsby 10 10 10 10 10 10 10 10 10 10 10 10 PoP 12hr 20 10 0 0 0 QPF 12hr 0.01 0 0 0 0 Flurries S S S S Rain shwrs Sprinkles S Wind chill 29 25 22 20 24 Min chill 25 20 18 34 27 27 30 35 29 ChanceThunder 5 0 0 0 0 Max Mix Hgt AGL Mix Hgt 2900 3100 Max Vent Rt 37200 46100 T Wind Dir NW W T Wind Spd 13 11 ADI 37 47 Max LVORI 4 5 Stability D E C B G G C B G G Ceiling NONE 18200 NONE NONE NONE NONE NONE NONE NONE NONE Sta Pres 27.75 27.80 27.83 27.86 27.84 27.85 27.82 27.87 27.90 27.94 Date 12/13 Sun 12/14/25 Mon 12/15/25 Tue 12/16/25 Wed 12/17/25 EST 6hrly 13 19 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 55 28 37 14 45 23 52 30 53 Temp 52 44 36 28 36 25 18 15 42 34 25 24 50 36 32 32 51 46 Dewpt 32 32 33 26 17 9 7 7 10 15 15 13 19 23 25 27 36 37 PWind Dir NW NW NW N SW SE S SE SE Wind Char LT LT GN LT LT LT LT LT LT Avg Clouds SC FW FW B1 SC CL CL FW FW FW FW SC SC SC B1 B1 B1 B1 PoP 12hr 5 20 5 5 0 10 10 10 30 Rain shwrs S S S C Snowshwrs S This is an experimental product for planning and review purposes only, and is not to be substituted for an official fire weather spot forecast $$