Point Forecast Matrices
Issued by NWS Knoxville/Tri Cities, TN
Issued by NWS Knoxville/Tri Cities, TN
786 FOUS54 KMRX 140545 PFMMRX Point Forecast Matrices National Weather Service Morristown TN 144 AM EDT Thu Aug 14 2025 TNZ017-142000- Tri Cities Airport-Sullivan TN 36.50N 82.41W Elev. 1536 ft 144 AM EDT Thu Aug 14 2025 Date Thu 08/14/25 Fri 08/15/25 Sat 08/16/25 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 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 84 68 88 67 89 Temp 69 70 77 80 82 78 72 70 68 69 79 84 86 80 74 70 68 69 80 86 86 79 Dewpt 68 69 72 73 72 72 70 69 67 68 71 71 70 71 69 68 66 67 71 71 70 70 RH 97 97 85 79 72 82 93 97 97 97 77 65 59 74 84 93 93 93 74 61 59 74 Wind Dir SE SE W NW NW N NE NE E NE NE N NW NE E E E E NE N NE NE Wind Spd 1 1 2 3 3 2 1 0 0 1 1 2 2 2 1 1 1 1 2 2 2 2 Clouds B2 B2 B1 B1 SC SC SC B1 B1 B1 SC SC SC SC SC FW SC SC FW FW FW SC PoP 12hr 50 10 30 10 30 QPF 12hr 0.04 0 0 0 0 Rain shwrs C C C C C C Tstms C C C C C C Obvis PF PF Heat index 84 86 90 91 84 83 91 91 Max heat 86 88 91 93 92 94 Date Sun 08/17/25 Mon 08/18/25 Tue 08/19/25 Wed 08/20/25 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 66 90 67 91 67 89 68 87 Temp 69 68 86 82 71 69 87 82 70 69 86 80 70 69 83 78 Dewpt 67 66 69 70 67 67 70 70 67 67 71 71 68 68 71 70 PWind Dir E N E N E NW SE W Wind Char LT LT LT LT LT LT LT LT Avg Clouds FW FW FW FW FW FW FW FW FW FW SC SC SC SC SC SC PoP 12hr 5 10 5 20 10 30 30 50 Rain shwrs S C C S C Tstms S C S S C $$ TNZ071-142000- Knoxville McGhee Tyson Airport-Blount TN 35.80N 83.98W Elev. 979 ft 144 AM EDT Thu Aug 14 2025 Date Thu 08/14/25 Fri 08/15/25 Sat 08/16/25 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 89 71 91 72 92 Temp 72 72 79 85 86 82 77 74 72 73 82 88 89 84 78 75 72 73 83 89 90 84 Dewpt 71 71 74 74 74 73 73 72 71 71 74 74 73 72 72 71 70 71 74 74 72 72 RH 97 97 85 70 68 74 87 93 97 93 77 63 59 67 82 87 93 93 74 61 56 67 Wind Dir S SW W NW NW N E NE E NE NE N N NE SE SE E E NE N N NE Wind Spd 1 1 2 2 3 2 1 1 1 1 2 2 3 2 1 1 1 1 2 3 4 3 Clouds B2 B2 B1 SC SC SC B1 SC B1 B2 SC SC SC SC SC FW SC SC FW FW FW FW PoP 12hr 40 10 20 5 20 QPF 12hr 0 0 0 0 0 Rain shwrs C C S S S S Tstms C C S S S S Obvis PF PF Heat index 93 94 87 88 97 97 90 90 98 97 90 Max heat 93 95 97 98 87 98 98 Date Sun 08/17/25 Mon 08/18/25 Tue 08/19/25 Wed 08/20/25 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 71 93 71 94 72 93 72 90 Temp 74 72 89 85 75 73 90 85 75 73 90 85 75 73 87 82 Dewpt 71 70 73 71 70 70 73 72 70 71 73 72 71 71 73 72 PWind Dir E NE SE NE E NE SE W Wind Char LT LT LT LT LT LT LT LT Avg Clouds FW FW FW FW FW FW FW FW FW FW SC FW SC SC SC SC PoP 12hr 5 10 5 10 10 30 20 40 Rain shwrs C S C Tstms C S C $$ TNZ036-142000- Oak Ridge-Anderson TN 36.00N 84.24W Elev. 913 ft 144 AM EDT Thu Aug 14 2025 Date Thu 08/14/25 Fri 08/15/25 Sat 08/16/25 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 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 88 71 91 70 92 Temp 71 72 80 86 85 81 75 73 71 72 82 88 88 83 77 75 71 72 83 89 90 83 Dewpt 71 71 74 74 74 73 73 72 70 70 75 74 73 73 72 71 69 70 74 73 72 72 RH 100 97 82 68 70 77 94 97 97 93 79 63 61 72 85 87 93 93 74 59 56 70 Wind Dir SW SW S SW N NE N NE NE NE NE NE N N N N N NE NE NE N N Wind Spd 1 1 1 2 2 1 1 1 1 1 1 1 2 1 1 1 1 1 1 2 2 2 Clouds B2 B2 B1 B1 SC B1 B1 SC B1 B1 B1 SC SC SC SC FW SC SC FW SC FW FW PoP 12hr 40 10 20 5 20 QPF 12hr 0 0 0 0 0 Rain shwrs C C S S S S Tstms C C S S S S Obvis PF PF Heat index 85 94 93 86 89 97 96 89 90 97 97 88 Max heat 94 95 97 98 86 97 99 Date Sun 08/17/25 Mon 08/18/25 Tue 08/19/25 Wed 08/20/25 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 70 93 71 94 71 94 71 90 Temp 74 72 90 85 74 73 92 85 75 73 91 84 75 73 88 82 Dewpt 70 69 73 71 70 70 73 72 70 70 73 72 71 71 73 72 PWind Dir NE NE N NE N E W SW Wind Char LT LT LT LT LT LT LT LT Avg Clouds FW FW FW FW FW FW FW FW FW FW SC SC SC SC SC SC PoP 12hr 0 10 0 10 5 20 20 40 Rain shwrs S S S C Tstms S S S C $$ TNZ099-142000- Chattanooga Airport-Hamilton TN 35.03N 85.22W Elev. 688 ft 144 AM EDT Thu Aug 14 2025 Date Thu 08/14/25 Fri 08/15/25 Sat 08/16/25 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 90 73 92 72 93 Temp 72 72 81 86 87 81 76 74 73 73 83 89 89 83 77 75 74 73 84 89 90 84 Dewpt 72 72 75 75 74 75 74 73 72 72 75 75 74 74 74 73 72 72 74 74 74 74 RH 100100 82 70 65 82 94 97 97 97 77 64 61 74 90 94 93 97 72 61 60 72 Wind Dir SW W N NW NW N W W NW NW N N NW N N N N N NE NE NE N Wind Spd 1 1 2 2 3 2 1 1 1 1 1 2 2 2 1 1 1 1 2 2 3 2 Clouds B2 B2 B1 SC SC B1 B1 B1 B1 SC SC SC SC SC FW FW SC SC FW FW FW SC PoP 12hr 40 10 30 5 20 QPF 12hr 0.06 0 0.25 0 0 Rain shwrs C C C C S S Tstms C C C C S S Obvis PF PF Heat index 87 95 95 87 90 99 98 90 91 98 99 91 Max heat 95 98 99 101 86 98 99 Date Sun 08/17/25 Mon 08/18/25 Tue 08/19/25 Wed 08/20/25 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 72 93 72 95 73 94 73 93 Temp 75 73 90 85 76 74 92 86 76 74 92 85 76 74 90 82 Dewpt 72 72 73 73 72 71 73 73 72 71 74 73 72 72 73 72 PWind Dir NE NE NE NE N NE NW N Wind Char LT LT LT LT LT LT LT LT Avg Clouds FW FW FW FW FW FW FW FW FW FW FW SC SC SC SC SC PoP 12hr 0 10 0 10 5 30 10 40 Rain shwrs C C Tstms C C $$ NCZ060-142000- Tusquitee RAWS-Forestry-Cherokee NC 35.07N 84.12W Elev. 1600 ft 144 AM EDT Thu Aug 14 2025 Date Thu 08/14/25 Fri 08/15/25 Sat 08/16/25 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 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 87 67 88 67 88 Temp 68 68 77 84 84 78 72 69 68 68 80 86 84 78 72 70 68 68 80 85 83 77 Dewpt 68 68 73 72 72 72 71 69 68 68 72 73 71 72 70 69 67 67 72 72 72 71 RH 100100 87 67 67 82 97100100100 77 65 65 82 93 97 97 97 77 65 70 82 Min/Max RH 67 100 63 100 65 Wind Dir N N NW NW NW NW N N N N NW NW NW N N N N N NE NW N NE Wind Dir Deg 0 0 30 30 31 31 0 0 0 0 30 29 31 1 0 0 0 0 6 31 1 5 Wind Spd 0 0 2 4 4 2 0 0 0 0 1 2 2 1 0 0 0 0 1 2 2 1 Clouds B2 B2 B2 SC FW SC B1 B1 B2 B2 SC SC SC SC SC SC B1 B1 SC SC SC SC Clouds (%) 78 83 70 34 23 34 56 67 70 70 38 50 43 45 40 42 55 62 30 48 37 29 Vsby 7 7 10 10 10 10 10 7 7 7 10 10 PoP 12hr 50 10 40 10 40 QPF 12hr 0.01 0 0.07 0 0.07 Rain shwrs C C C C C C Tstms C C C C C C Obvis F F Heat index 90 90 84 93 89 84 91 88 Max heat 90 90 93 92 91 91 ChanceThunder 50 10 40 10 40 Max Mix Hgt AGL Mix Hgt 4100 4300 4400 Max Vent Rt 28300 21600 19600 T Wind Dir NW NW N T Wind Spd 5 4 4 ADI 28 22 22 Max LVORI 10 10 8 Stability D A A F F A A G F A A Ceiling NONE NONE NONE NONE NONE NONE NONE NONE NONE NONE NONE Sta Pres 27.89 27.90 27.92 27.95 27.99 28.00 27.99 28.01 28.00 27.98 27.95 Date Sun 08/17/25 Mon 08/18/25 Tue 08/19/25 Wed 08/20/25 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 66 89 66 91 66 90 67 89 Temp 69 67 86 78 68 67 88 78 70 68 87 79 70 68 86 77 Dewpt 68 67 71 71 68 66 70 71 68 67 71 71 69 67 71 71 PWind Dir E N NE N NE N E N Wind Char LT LT LT LT LT LT LT LT Avg Clouds FW SC SC SC FW SC FW FW SC SC SC SC SC SC SC SC PoP 12hr 5 20 5 20 10 40 20 50 Rain shwrs S S C S C Tstms S S C S C This is an experimental product for planning and review purposes only, and is not to be substituted for an official fire weather spot forecast $$