Point Forecast Matrices
Issued by NWS Knoxville/Tri Cities, TN
Issued by NWS Knoxville/Tri Cities, TN
797 FOUS54 KMRX 111619 PFMMRX Point Forecast Matrices National Weather Service Morristown TN 1219 PM EDT Mon Aug 11 2025 TNZ017-120800- Tri Cities Airport-Sullivan TN 36.50N 82.41W Elev. 1536 ft 1219 PM EDT Mon Aug 11 2025 Date 08/11/25 Tue 08/12/25 Wed 08/13/25 Thu EDT 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 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 67 85 69 84 68 Temp 82 79 72 69 68 69 77 81 83 79 73 70 69 70 75 80 83 78 72 70 69 69 Dewpt 70 69 68 67 66 67 69 71 71 70 69 68 68 68 71 72 72 71 70 69 68 68 RH 67 72 87 93 93 93 76 72 67 74 87 93 97 93 87 77 70 79 93 97 97 97 Wind Dir SE SE E E E E SW S S S S S S SW SW SW W W SW SW SW SW Wind Spd 5 4 3 2 1 1 2 4 4 3 2 2 2 2 4 5 5 2 2 1 1 2 Clouds B1 B1 SC B1 B1 B2 B2 B1 B1 B2 B2 B2 OV OV B2 B2 B1 B1 B1 B1 B2 B2 PoP 12hr 20 70 50 70 40 QPF 12hr 0 0.05 0.05 0.09 0.02 Rain shwrs C C C L C C C C C C C L L C C S Sprinkles C Tstms C C L C C S C C S C C C S Obvis PF PF PF PF PF Heat index 86 85 88 83 88 Max heat 89 88 91 86 90 Date 08/14 Fri 08/15/25 Sat 08/16/25 Sun 08/17/25 Mon 08/18/25 EDT 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 85 68 89 67 90 68 90 67 90 Temp 82 80 70 70 86 83 70 68 87 83 70 70 88 83 70 69 87 82 Dewpt 72 70 68 68 70 69 68 67 71 70 67 67 70 69 66 66 70 69 PWind Dir W S NW E NE E N E N Wind Char LT LT LT LT LT LT LT LT LT Avg Clouds B2 SC SC B1 SC FW FW FW FW FW FW SC SC FW FW FW SC SC PoP 12hr 50 10 30 10 30 10 20 10 30 Rain shwrs S C C C S C Tstms S C C C S C $$ TNZ071-120800- Knoxville McGhee Tyson Airport-Blount TN 35.80N 83.98W Elev. 979 ft 1219 PM EDT Mon Aug 11 2025 Date 08/11/25 Tue 08/12/25 Wed 08/13/25 Thu EDT 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 72 86 72 87 72 Temp 87 82 77 74 72 73 79 84 83 80 75 74 73 73 79 84 86 81 76 74 73 72 Dewpt 71 70 71 70 69 70 72 73 73 72 71 70 71 71 73 74 74 73 72 71 71 71 RH 59 67 82 87 90 90 79 70 72 77 87 87 93 93 82 72 68 77 87 90 93 97 Wind Dir E SE SW W N E E S SE SW SW SW SW SW SW W W SW SW SW SW SW Wind Spd 5 3 2 2 2 2 2 3 4 4 3 2 2 3 4 4 5 4 2 2 2 2 Clouds B1 B1 B1 B1 B2 B2 B2 B2 B1 B2 B2 B2 OV B2 B2 B1 B1 B1 B2 B1 B2 B2 PoP 12hr 30 70 50 60 30 QPF 12hr 0 0.20 0.18 0.16 0.02 Rain shwrs C S C C L C C C C C C C L L C C S S Sprinkles C Tstms C S S C L C C S S S C L C C S S Obvis PF Heat index 93 86 90 89 84 91 94 86 Max heat 94 90 93 91 94 83 Date 08/14 Fri 08/15/25 Sat 08/16/25 Sun 08/17/25 Mon 08/18/25 EDT 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 88 71 92 72 92 73 92 71 92 Temp 86 83 74 72 89 85 75 74 90 85 75 74 90 86 75 72 89 86 Dewpt 73 72 70 70 73 72 71 70 73 72 71 70 73 71 69 69 72 70 PWind Dir W S N E N E N S NE Wind Char LT LT LT LT LT LT LT LT LT Avg Clouds B2 B1 SC SC SC SC SC SC SC FW SC SC SC SC SC SC SC SC PoP 12hr 40 10 20 10 20 10 20 10 20 Rain shwrs C S S S S Tstms C S S S S $$ TNZ036-120800- Oak Ridge-Anderson TN 36.00N 84.24W Elev. 913 ft 1219 PM EDT Mon Aug 11 2025 Date 08/11/25 Tue 08/12/25 Wed 08/13/25 Thu EDT 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 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 72 87 72 87 71 Temp 88 81 76 74 72 73 79 85 84 79 74 73 72 73 80 86 84 79 75 73 71 73 Dewpt 71 70 71 70 69 70 72 73 73 72 71 71 71 71 74 75 74 73 72 71 70 71 RH 57 69 85 87 90 90 79 67 70 79 90 93 97 93 82 70 72 82 90 93 97 93 Wind Dir E E SW W W N SE SE S S SW SW SW SW SW SW W SW SW SW SW SW Wind Spd 3 2 2 2 1 1 2 2 3 2 2 2 2 2 2 2 3 2 1 1 1 1 Clouds B1 B1 B1 B1 B2 OV B2 B2 B1 B2 B2 B2 OV OV B2 B2 B2 B1 B2 B1 B2 B2 PoP 12hr 20 70 50 70 30 QPF 12hr 0 0.11 0.03 0.13 0.01 Rain shwrs S S C C L L C C C C C C L L C C S S S Sprinkles C Tstms S S S C L C C S S S S C L C C C S S Obvis PF Heat index 94 85 92 90 85 95 91 Max heat 94 92 93 95 95 Date 08/14 Fri 08/15/25 Sat 08/16/25 Sun 08/17/25 Mon 08/18/25 EDT 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 89 71 92 71 93 71 92 71 92 Temp 88 81 73 73 90 85 73 73 91 86 75 72 89 86 74 72 89 86 Dewpt 73 72 70 70 73 72 70 70 73 72 70 70 73 72 69 69 72 70 PWind Dir SW NW NE N NE N NE W E Wind Char LT LT LT LT LT LT LT LT LT Avg Clouds B2 B1 SC SC SC SC SC SC SC SC SC SC SC SC FW SC SC SC PoP 12hr 50 10 20 5 20 5 20 10 20 Rain shwrs S C S S S S Tstms S C S S S S $$ TNZ099-120800- Chattanooga Airport-Hamilton TN 35.03N 85.22W Elev. 688 ft 1219 PM EDT Mon Aug 11 2025 Date 08/11/25 Tue 08/12/25 Wed 08/13/25 Thu EDT 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 73 85 72 89 72 Temp 87 82 75 74 73 73 78 81 83 79 75 74 73 73 80 86 88 83 76 74 74 73 Dewpt 74 73 72 71 72 72 74 74 74 73 73 73 72 72 75 75 75 74 73 73 72 72 RH 65 74 90 90 97 97 88 79 74 82 94 97 97 97 85 70 66 74 90 97 93 97 Wind Dir E SE SE SE SE E SE S SE SE S S SW S SW SW W SW SW SW SW SW Wind Spd 5 5 3 2 2 2 3 5 5 4 2 2 2 2 2 3 4 2 2 1 1 1 Clouds B1 B2 B2 B2 OV OV B2 B2 B2 B2 B1 B2 B2 B2 B1 B2 B1 B1 B1 B1 B1 B1 PoP 12hr 30 80 50 80 20 QPF 12hr 0.01 0.67 0.14 0.19 0.02 Rain shwrs C S S C C L L C C C C C C D D S S S Tstms C S S S C L C C S S S C L C S S Obvis PF Heat index 95 87 86 90 85 95 98 90 Max heat 95 87 91 95 98 86 Date 08/14 Fri 08/15/25 Sat 08/16/25 Sun 08/17/25 Mon 08/18/25 EDT 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 89 72 92 73 93 74 92 73 92 Temp 88 82 74 73 89 86 76 74 91 86 75 75 90 85 75 74 91 84 Dewpt 75 74 72 71 74 74 72 72 74 73 72 71 74 73 71 70 73 72 PWind Dir SW W NW NW N NE E SE E Wind Char LT LT LT LT LT LT LT LT LT Avg Clouds B1 B1 SC SC SC SC SC SC SC SC SC SC SC SC FW SC SC SC PoP 12hr 60 10 30 5 30 5 30 5 30 Rain shwrs S L C C C C Tstms S L C C C C $$ NCZ060-120800- Tusquitee RAWS-Forestry-Cherokee NC 35.07N 84.12W Elev. 1600 ft 1219 PM EDT Mon Aug 11 2025 Date 08/11/25 Tue 08/12/25 Wed 08/13/25 Thu EDT 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 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 69 82 68 86 67 Temp 80 74 70 69 69 69 74 79 79 74 70 70 69 69 76 82 84 78 71 70 69 68 Dewpt 70 69 68 68 67 68 71 72 71 70 69 68 68 68 72 72 72 71 70 69 68 68 RH 72 84 93 97 93 97 90 79 77 87 97 93 97 97 87 72 67 79 97 97 97100 Max/Min RH 97 74 99 67 100 Wind Dir SE SE E SE E E SE SE S S SE SE SE SW W W W W N N N N Wind Dir Deg 12 12 11 12 11 11 12 15 16 16 13 14 14 21 24 25 25 24 0 0 0 0 Wind Spd 5 4 3 2 2 2 2 4 4 2 2 1 1 1 2 3 3 2 0 0 0 0 Clouds B2 B2 B2 OV OV OV B2 B2 B2 B2 B2 OV OV OV B2 B2 B1 B1 B1 B2 B2 B2 Clouds (%) 70 71 73 89 89 92 87 83 80 85 84 92 93 95 76 72 54 61 69 82 83 81 Vsby 6 10 9 8 7 4 5 6 6 6 6 4 5 5 PoP 12hr 40 80 60 80 30 QPF 12hr 0.03 0.47 0.25 0.23 0.03 Rain shwrs L C C C L D L L L C C C C D D C C S Sprinkles C C Tstms L C C C C L L C C S C L L C S Obvis PF PF PF PF Heat index 83 87 90 Max heat 86 85 87 90 ChanceThunder 30 60 40 60 30 Max Mix Hgt AGL Mix Hgt 2700 4400 Max Vent Rt 21400 22800 T Wind Dir SE W T Wind Spd 8 6 ADI 21 24 Max LVORI 8 8 Stability B D D B B D D B B D D Ceiling NONE NONE NONE NONE NONE NONE NONE NONE NONE NONE NONE Sta Pres 28.00 28.02 28.02 28.00 27.97 27.95 27.96 27.93 27.90 27.91 27.94 Date 08/14 Fri 08/15/25 Sat 08/16/25 Sun 08/17/25 Mon 08/18/25 EDT 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 87 66 90 67 90 66 89 66 89 Temp 86 77 69 67 89 78 71 68 88 77 70 67 87 76 69 67 87 76 Dewpt 72 70 68 67 71 71 68 67 72 71 68 67 71 70 67 66 70 70 PWind Dir W W NW N S E W E NW Wind Char LT LT LT LT LT LT LT LT LT Avg Clouds B1 B1 B1 B1 SC SC SC B1 SC SC SC B1 SC SC SC SC SC SC PoP 12hr 60 10 40 10 40 10 40 10 30 Rain shwrs S L C C C C Tstms S C C C C 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 $$