Point Forecast Matrices
Issued by NWS Knoxville/Tri Cities, TN
Issued by NWS Knoxville/Tri Cities, TN
546 FOUS54 KMRX 091107 PFMMRX Point Forecast Matrices National Weather Service Morristown TN 606 AM EST Tue Dec 9 2025 TNZ017-092100- Tri Cities Airport-Sullivan TN 36.50N 82.41W Elev. 1536 ft 606 AM EST Tue Dec 9 2025 Date Tue 12/09/25 Wed 12/10/25 Thu 12/11/25 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 42 29 49 29 37 Temp 26 31 40 42 36 31 29 31 32 41 47 47 42 37 34 31 29 32 35 37 34 Dewpt 25 28 29 29 28 28 27 26 26 31 35 36 37 33 30 28 26 27 27 26 26 RH 96 88 64 60 72 88 92 81 78 67 63 65 82 85 85 88 88 81 72 64 72 Wind Dir SW SW SW SW SW SW S SW SW SW W W W W W W W W W W W Wind Spd 2 3 6 5 3 2 2 4 8 14 19 18 14 13 10 10 9 10 10 9 4 Wind Gust 18 26 31 28 25 24 20 Clouds OV OV B2 SC FW SC SC B1 SC B1 B1 B2 B2 B2 B2 B2 OV B2 B2 B2 B1 PoP 12hr 0 5 30 50 10 QPF 12hr 0 0 0 0.03 0 Rain shwrs C C C C Snowshwrs C Wind chill 25 25 33 34 28 25 23 21 24 27 30 Min chill 23 26 31 26 24 22 33 24 20 21 27 Date Fri 12/12/25 Sat 12/13/25 Sun 12/14/25 Mon 12/15/25 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 26 45 30 48 30 38 17 40 Temp 29 28 43 41 35 31 45 41 38 31 36 27 20 17 37 33 Dewpt 26 26 31 32 33 31 34 32 33 28 24 17 12 9 17 19 PWind Dir SW SW W W W NW N N Wind Char LT LT LT LT LT LT LT LT Avg Clouds B1 B2 B2 B1 SC B1 B1 SC B1 B2 B1 FW FW FW SC SC PoP 12hr 10 10 20 10 30 20 10 5 Rain shwrs S S S C S Snowshwrs S $$ TNZ071-092100- Knoxville McGhee Tyson Airport-Blount TN 35.80N 83.98W Elev. 979 ft 606 AM EST Tue Dec 9 2025 Date Tue 12/09/25 Wed 12/10/25 Thu 12/11/25 EST 3hrly 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 47 36 53 31 43 Temp 28 33 44 47 41 38 36 38 39 44 51 52 47 41 36 33 31 35 40 43 39 Dewpt 26 30 32 32 31 31 30 30 30 34 37 38 37 33 30 29 28 28 28 28 28 RH 92 89 62 56 67 76 79 73 70 68 59 59 68 73 79 85 88 75 62 55 64 Wind Dir S SW SW SW SW SW SW SW SW SW SW SW W W W W W W W W SW Wind Spd 1 3 9 10 9 10 11 13 16 20 23 20 12 10 5 4 4 5 8 6 4 Wind Gust 21 25 27 Clouds B1 B2 B1 FW FW SC SC SC SC B1 B1 B1 B1 B1 B1 B2 B2 B1 B1 SC B1 PoP 12hr 0 5 10 10 5 QPF 12hr 0 0 0 0 0 Wind chill 35 31 28 30 30 36 35 Min chill 27 28 35 28 29 31 31 26 27 36 Date Fri 12/12/25 Sat 12/13/25 Sun 12/14/25 Mon 12/15/25 EST 6hrly 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 32 52 35 53 34 42 22 44 Temp 34 34 49 46 40 36 50 47 43 34 40 33 25 22 40 38 Dewpt 29 28 33 36 37 36 37 38 37 31 27 20 16 15 22 25 PWind Dir SW SW SW W W N NE N Wind Char LT GN LT LT LT LT LT LT Avg Clouds B1 B1 B1 SC SC B1 B1 SC B1 B2 B1 FW FW SC SC SC PoP 12hr 5 5 20 20 30 20 10 10 Rain shwrs S S C C S $$ TNZ036-092100- Oak Ridge-Anderson TN 36.00N 84.24W Elev. 913 ft 606 AM EST Tue Dec 9 2025 Date Tue 12/09/25 Wed 12/10/25 Thu 12/11/25 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 45 35 53 30 43 Temp 27 33 43 45 40 37 36 36 36 43 50 52 46 39 35 32 31 35 41 43 37 Dewpt 26 30 31 32 31 32 32 32 32 35 37 39 36 32 28 28 27 28 28 28 28 RH 96 89 62 60 70 82 85 85 85 73 61 61 68 76 75 85 85 75 59 55 70 Wind Dir SW SW SW SW SW SW SW SW SW SW SW W W W W W W W W W W Wind Spd 1 3 8 9 5 6 8 10 11 14 17 16 8 5 4 3 3 5 5 4 2 Wind Gust 17 19 23 26 27 28 27 26 21 18 Clouds B1 B2 OV SC FW SC B1 B1 B1 B1 B1 B1 B1 SC B1 B2 B2 B1 B1 SC B1 PoP 12hr 0 5 20 20 5 QPF 12hr 0 0 0 0 0 Rain shwrs S S S S Snowshwrs S Wind chill 30 29 28 36 Min chill 27 28 36 30 28 28 31 28 27 37 Date Fri 12/12/25 Sat 12/13/25 Sun 12/14/25 Mon 12/15/25 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 30 51 33 51 31 41 21 42 Temp 33 32 47 45 38 34 48 45 40 32 39 30 23 21 39 36 Dewpt 29 29 33 36 35 33 37 36 36 29 25 18 14 13 20 24 PWind Dir SW SW W W NW N NE SE Wind Char LT LT LT LT LT LT LT LT Avg Clouds B1 B2 B1 SC SC B1 B1 SC B1 B2 SC FW FW FW SC SC PoP 12hr 5 5 20 10 30 20 10 10 Rain shwrs S C C S $$ TNZ099-092100- Chattanooga Airport-Hamilton TN 35.03N 85.22W Elev. 688 ft 606 AM EST Tue Dec 9 2025 Date Tue 12/09/25 Wed 12/10/25 Thu 12/11/25 EST 3hrly 04 07 10 13 16 19 22 01 04 07 10 13 16 19 22 01 04 07 10 13 16 19 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 49 35 56 31 49 Temp 29 36 46 49 42 37 35 36 36 45 54 56 50 43 38 33 31 38 46 49 42 Dewpt 28 30 31 32 33 33 33 34 33 36 39 40 38 35 31 29 28 29 29 29 31 RH 96 79 55 52 70 85 92 92 89 70 57 55 63 73 76 85 88 70 51 46 65 Wind Dir N S S S S S S S S SW SW W W NW NW NW NW W W W W Wind Spd 0 2 6 8 5 5 5 8 10 13 16 14 9 6 4 3 2 3 5 5 3 Wind Gust 18 20 24 25 Clouds FW B1 B1 FW FW FW FW FW SC SC SC SC SC SC SC SC SC SC SC SC SC PoP 12hr 0 0 0 0 0 QPF 12hr 0 0 0 0 0 Wind chill 30 29 39 Min chill 28 30 38 30 28 29 34 29 33 Date Fri 12/12/25 Sat 12/13/25 Sun 12/14/25 Mon 12/15/25 EST 6hrly 01 07 13 19 01 07 13 19 01 07 13 19 01 07 13 19 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 32 57 38 57 37 47 25 47 Temp 34 32 53 50 42 39 52 50 44 37 45 36 28 25 43 41 Dewpt 32 30 35 39 40 37 40 42 42 35 28 23 19 17 23 26 PWind Dir SW SW W W NW N N E Wind Char LT LT LT LT LT LT LT LT Avg Clouds SC SC FW FW SC SC SC SC B1 B1 SC FW FW FW SC SC PoP 12hr 0 0 10 10 30 20 5 5 Rain shwrs S C S $$ NCZ060-092100- Tusquitee RAWS-Forestry-Cherokee NC 35.07N 84.12W Elev. 1600 ft 606 AM EST Tue Dec 9 2025 Date Tue 12/09/25 Wed 12/10/25 Thu 12/11/25 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 47 29 52 26 44 Temp 25 32 44 45 36 31 30 30 30 40 50 51 46 40 35 30 27 33 41 43 37 Dewpt 25 30 30 29 30 29 29 28 27 33 34 36 36 35 30 27 26 26 26 26 27 RH 100 92 57 53 79 92 96 92 88 76 54 56 68 82 82 88 96 75 55 51 67 Min/Max RH 51 96 54 96 49 Wind Dir N SE SW SW SE E E SE SE SW SW W W NW NW NW NW NW W W W Wind Dir Deg 0 15 20 21 15 11 11 12 14 20 23 25 27 29 31 31 30 30 28 28 28 Wind Spd 0 2 3 4 2 2 2 2 3 8 11 12 8 8 5 4 3 5 6 5 2 Wind Gust 14 20 23 23 24 18 16 Clouds B2 SC B1 SC FW FW FW FW SC B1 B1 SC B1 B1 B1 B1 B1 SC SC SC SC Clouds (%) 78 48 69 27 12 11 15 23 35 52 54 50 65 61 64 65 56 44 31 42 42 Vsby 10 10 10 10 10 10 10 10 10 10 10 10 10 PoP 12hr 0 0 5 10 0 QPF 12hr 0 0 0 0 0 ChanceThunder 0 0 5 0 0 Max Mix Hgt AGL Mix Hgt 2700 3300 3100 Max Vent Rt 23900 65300 36800 T Wind Dir S SW NW T Wind Spd 6 17 11 ADI 24 66 37 Max LVORI 10 6 7 Stability F B B G G C C E F C B Ceiling NONE NONE NONE NONE NONE NONE 23500 NONE NONE NONE NONE Sta Pres 27.99 27.92 27.88 27.82 27.74 27.59 27.66 27.75 27.80 27.82 27.85 Date Fri 12/12/25 Sat 12/13/25 Sun 12/14/25 Mon 12/15/25 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 27 54 34 56 36 48 22 47 Temp 30 29 51 45 38 35 52 48 43 36 45 33 25 23 46 36 Dewpt 26 25 31 34 37 35 39 38 39 35 29 23 18 18 23 24 PWind Dir W SW W W W NW N S Wind Char LT LT LT LT LT LT LT LT Avg Clouds SC SC SC FW SC SC SC SC B1 B2 B1 FW FW FW SC SC PoP 12hr 5 5 20 10 30 20 10 10 Rain shwrs S C C 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 $$