Point Forecast Matrices
Issued by NWS Knoxville/Tri Cities, TN
Issued by NWS Knoxville/Tri Cities, TN
Versions:
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045 FOUS54 KMRX 180532 PFMMRX Point Forecast Matrices National Weather Service Morristown TN 1231 AM EST Tue Nov 18 2025 TNZ017-182100- Tri Cities Airport-Sullivan TN 36.50N 82.41W Elev. 1536 ft 1231 AM EST Tue Nov 18 2025 Date Tue 11/18/25 Wed 11/19/25 Thu 11/20/25 EST 3hrly 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 64 48 64 51 67 Temp 30 29 46 62 63 54 51 50 50 50 56 62 64 58 55 53 53 51 56 64 66 60 Dewpt 23 23 27 31 32 36 42 46 48 50 54 56 56 55 54 53 53 51 55 54 53 53 RH 75 78 47 31 31 50 71 86 93100 93 81 75 90 96100100100 96 70 63 78 Wind Dir E E S W SW S SE SW S W SW SW SW S S SW SW SW SW W W SW Wind Spd 1 2 2 4 4 3 2 2 3 2 4 5 4 2 1 1 1 2 2 5 3 2 Clouds FW FW B1 B1 B1 B1 B2 B2 B2 OV OV B2 B2 B2 B2 B2 OV OV B2 B1 B2 B2 PoP 12hr 5 80 20 10 10 QPF 12hr 0 0.21 0 0 0 Rain shwrs S L C S S S S S C Tstms S S Date Fri 11/21/25 Sat 11/22/25 Sun 11/23/25 Mon 11/24/25 EST 6hrly 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 53 67 53 63 43 60 40 61 Temp 54 53 65 61 56 53 60 57 48 44 58 53 43 40 59 53 Dewpt 54 53 59 57 55 53 56 51 48 44 46 43 42 39 45 44 PWind Dir S SW SW W N W SW SW Wind Char LT LT LT LT LT LT LT LT Avg Clouds OV OV OV B2 OV OV B2 B1 B1 B1 SC SC SC SC SC SC PoP 12hr 50 50 70 50 30 20 10 10 Rain shwrs C C C C L L C C C S S S Tstms S S $$ TNZ071-182100- Knoxville McGhee Tyson Airport-Blount TN 35.80N 83.98W Elev. 979 ft 1231 AM EST Tue Nov 18 2025 Date Tue 11/18/25 Wed 11/19/25 Thu 11/20/25 EST 3hrly 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 69 56 72 54 72 Temp 38 37 50 65 68 61 61 60 58 58 63 70 71 65 60 57 55 54 59 69 71 64 Dewpt 26 26 32 34 37 41 45 50 54 57 59 61 60 59 58 56 55 54 57 58 58 59 RH 62 64 50 31 32 48 56 69 86 96 87 73 68 81 93 96100100 93 68 63 84 Wind Dir NE NE W SW SW SW SW SW SW SW SW SW W SW SW SW SW SW W W W SW Wind Spd 2 2 2 8 10 10 10 9 8 5 6 8 6 3 2 2 2 1 2 3 3 2 Clouds FW FW SC B1 B1 SC B2 OV B2 OV B2 B2 B1 B2 B1 B2 B2 B2 B2 B2 B2 B2 PoP 12hr 5 70 10 10 20 QPF 12hr 0 0.07 0 0 0.04 Rain shwrs L C C S S C Tstms S S S S Date Fri 11/21/25 Sat 11/22/25 Sun 11/23/25 Mon 11/24/25 EST 6hrly 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 57 71 58 66 48 63 44 64 Temp 59 57 69 65 60 58 65 58 53 48 61 56 48 44 61 57 Dewpt 57 56 61 60 59 58 59 55 51 48 50 47 45 43 49 48 PWind Dir SW SW SW NW N NW S N Wind Char LT LT LT GN LT LT LT LT Avg Clouds OV OV OV B2 B2 OV B2 B1 B1 B1 SC SC SC SC SC B1 PoP 12hr 50 50 80 50 30 20 10 10 Rain shwrs C C S C D L C C C S S Tstms S S $$ TNZ036-182100- Oak Ridge-Anderson TN 36.00N 84.24W Elev. 913 ft 1231 AM EST Tue Nov 18 2025 Date Tue 11/18/25 Wed 11/19/25 Thu 11/20/25 EST 3hrly 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 66 54 70 52 70 Temp 37 36 49 62 66 59 58 57 56 55 61 68 70 63 57 55 54 52 59 67 69 62 Dewpt 27 27 31 33 37 41 45 49 53 54 58 61 60 58 57 55 53 52 57 59 59 59 RH 67 69 50 33 34 51 62 75 90 96 90 78 71 84100100 96100 93 75 70 90 Wind Dir NE E SW SW SW SW SW SW SW SW SW SW W W W W W NW SW SW SW SW Wind Spd 1 1 2 6 9 6 5 4 3 2 4 5 4 2 2 1 1 1 1 2 2 2 Wind Gust 18 18 14 Clouds FW SC B2 B1 SC B1 B2 B2 OV B2 B2 B2 B1 B2 B1 B2 B2 OV B2 B2 B2 OV PoP 12hr 10 80 20 10 30 QPF 12hr 0 0.10 0.01 0 0.08 Rain shwrs S D L C S S C C L Tstms S S S S S Date Fri 11/21/25 Sat 11/22/25 Sun 11/23/25 Mon 11/24/25 EST 6hrly 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 56 69 56 65 46 63 44 64 Temp 58 56 67 63 59 56 63 59 51 47 61 55 47 44 61 55 Dewpt 57 56 62 60 59 56 59 54 51 47 49 47 43 42 49 48 PWind Dir SW SW SW NW N NW NW S Wind Char LT LT LT LT LT LT LT LT Avg Clouds OV OV OV B2 B2 OV B2 B1 B1 B1 SC SC SC SC B1 B1 PoP 12hr 60 60 90 50 30 20 10 10 Rain shwrs L C C L D D C C C S S Tstms C S $$ TNZ099-182100- Chattanooga Airport-Hamilton TN 35.03N 85.22W Elev. 688 ft 1231 AM EST Tue Nov 18 2025 Date Tue 11/18/25 Wed 11/19/25 Thu 11/20/25 EST 3hrly 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 72 58 77 55 76 Temp 40 39 55 69 72 65 61 60 59 59 67 75 76 68 61 58 56 55 63 73 75 68 Dewpt 29 28 31 34 39 44 49 54 57 59 62 62 60 61 61 58 56 55 60 60 60 61 RH 64 64 40 27 30 46 65 81 93100 84 64 58 78100100100100 90 64 60 78 Wind Dir S S S S S S S S S S SW W W W W W NW N E SW S S Wind Spd 1 2 5 10 11 10 6 4 3 3 4 6 5 2 1 1 1 1 2 3 3 2 Clouds FW FW FW SC SC SC B2 B1 B1 B2 B1 B1 B1 B2 B1 B1 B2 B2 B2 B2 B2 OV PoP 12hr 5 40 10 5 20 QPF 12hr 0 0.01 0 0 0 Rain shwrs C C C S S C Tstms S S Date Fri 11/21/25 Sat 11/22/25 Sun 11/23/25 Mon 11/24/25 EST 6hrly 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 58 73 60 70 51 66 46 67 Temp 61 58 71 67 61 60 67 63 55 51 64 59 50 46 64 59 Dewpt 59 58 61 62 61 60 59 57 54 51 50 48 47 45 49 49 PWind Dir S SW SW W NW N NW E Wind Char LT LT LT LT LT LT LT LT Avg Clouds OV OV B2 B2 B2 B2 B2 SC SC SC SC SC SC SC SC B1 PoP 12hr 30 50 80 50 20 20 10 10 Rain shwrs C S C C D L C C S S S Tstms S $$ NCZ060-182100- Tusquitee RAWS-Forestry-Cherokee NC 35.07N 84.12W Elev. 1600 ft 1231 AM EST Tue Nov 18 2025 Date Tue 11/18/25 Wed 11/19/25 Thu 11/20/25 EST 3hrly 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 67 50 70 50 73 Temp 31 29 49 66 66 56 52 53 52 52 59 68 69 62 56 54 52 50 59 70 72 63 Dewpt 26 27 34 32 34 37 40 46 50 52 57 60 58 57 56 54 52 50 58 57 56 57 RH 81 92 56 28 30 49 63 77 93100 93 76 68 84100100100100 96 63 57 81 Min/Max RH 27 100 68 100 57 Wind Dir E E SE S S SE E E E E SW W W W N N N N SW W W SW Wind Dir Deg 11 11 14 18 18 14 11 9 11 11 22 26 28 26 0 0 0 0 23 25 24 22 Wind Spd 1 2 3 5 5 4 2 1 1 1 2 4 4 1 0 0 0 0 1 2 2 1 Clouds FW FW FW SC SC SC B1 B2 OV OV B2 B1 B1 B1 B1 B1 B2 OV B2 B1 B2 B2 Clouds (%) 12 19 21 43 35 45 56 85 98 93 87 69 63 64 67 66 76 89 73 64 72 86 Vsby 10 10 10 10 10 10 10 10 10 10 10 10 PoP 12hr 0 60 5 10 10 QPF 12hr 0 0.05 0 0 0 Rain shwrs S L C C Tstms S S ChanceThunder 0 20 0 0 10 Max Mix Hgt AGL Mix Hgt 2800 2300 1800 Max Vent Rt 30600 14400 8400 T Wind Dir S W W T Wind Spd 9 5 4 ADI 31 15 9 Max LVORI 3 10 9 Stability G B B D D B B F D B B Ceiling NONE NONE NONE NONE NONE NONE NONE NONE NONE NONE NONE Sta Pres 28.02 27.98 27.99 27.98 28.00 28.01 28.02 28.00 28.00 27.96 27.95 Date Fri 11/21/25 Sat 11/22/25 Sun 11/23/25 Mon 11/24/25 EST 6hrly 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 54 70 54 67 47 64 41 66 Temp 56 54 69 62 57 54 66 56 51 47 61 54 45 41 65 53 Dewpt 56 54 59 58 57 54 57 55 51 47 50 47 43 41 46 47 PWind Dir S SW SW W NW W S SW Wind Char LT LT LT LT LT LT LT LT Avg Clouds OV OV OV B2 B2 OV B2 B1 B1 B1 B1 SC SC SC SC B1 PoP 12hr 30 40 80 50 30 20 10 10 Rain shwrs C S C D L C C C S S Tstms 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 $$