Point Forecast Matrices
Issued by NWS Knoxville/Tri Cities, TN
Issued by NWS Knoxville/Tri Cities, TN
140 FOUS54 KMRX 131754 PFMMRX Point Forecast Matrices National Weather Service Morristown TN 153 PM EDT Wed Aug 13 2025 TNZ017-140800- Tri Cities Airport-Sullivan TN 36.50N 82.41W Elev. 1536 ft 153 PM EDT Wed Aug 13 2025 Date 08/13/25 Thu 08/14/25 Fri 08/15/25 Sat 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 68 83 67 87 67 Temp 75 74 72 70 70 70 76 81 82 78 72 70 69 69 79 84 86 81 74 70 68 69 Dewpt 72 71 70 69 69 69 71 72 71 70 69 67 66 67 71 70 69 69 68 67 66 65 RH 90 90 93 97 97 97 85 74 69 76 90 90 90 93 77 63 57 67 82 90 93 87 Wind Dir W W SW SW W SW SW NW NW NE NE NE E NE NE N NW N E E E E Wind Spd 5 2 2 1 1 1 2 3 3 2 1 1 1 1 2 2 3 2 1 1 1 1 Clouds B1 SC SC B2 OV B2 B1 B1 B1 B1 SC SC B1 B1 SC SC FW SC FW FW FW SC PoP 12hr 40 50 20 30 10 QPF 12hr 0.24 0.10 0 0 0 Rain shwrs L C C C S S C C C S C C Tstms C S S C C C S C C Obvis PF PF F Heat index 85 86 89 90 84 Max heat 87 89 90 92 Flood A Date 08/16 Sun 08/17/25 Mon 08/18/25 Tue 08/19/25 Wed 08/20/25 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 89 67 90 67 88 67 85 Temp 85 80 70 69 86 82 71 70 87 81 70 69 85 79 70 69 81 76 Dewpt 69 69 66 66 68 68 65 65 68 68 67 66 69 68 65 65 68 67 PWind Dir NE SE NW SW N E W SE W Wind Char LT LT LT LT LT LT LT LT LT Avg Clouds FW FW FW FW FW FW FW FW FW FW FW FW SC SC SC SC SC SC PoP 12hr 20 5 10 5 20 10 30 20 50 Rain shwrs S S C S S C Tstms S S C S C $$ TNZ071-140800- Knoxville McGhee Tyson Airport-Blount TN 35.80N 83.98W Elev. 979 ft 153 PM EDT Wed Aug 13 2025 Date 08/13/25 Thu 08/14/25 Fri 08/15/25 Sat EDT 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 71 87 70 91 71 Temp 79 77 75 73 73 72 79 85 86 81 76 74 72 72 81 88 90 84 78 76 73 73 Dewpt 70 71 72 72 71 70 73 73 72 72 72 71 70 70 73 72 71 71 71 71 69 69 RH 74 82 90 97 93 93 82 67 63 74 87 90 93 93 77 59 54 65 79 85 87 87 Wind Dir W SW SW SW W SW W N N NW E E E E NE N N W E E E E Wind Spd 5 3 2 2 1 2 2 2 4 2 1 1 1 1 2 2 3 2 2 1 1 1 Clouds B1 B1 B1 B2 B1 B2 B1 SC SC SC SC SC B1 B1 SC SC FW SC SC SC SC SC PoP 12hr 40 50 20 20 5 QPF 12hr 0.05 0.03 0 0 0 Rain shwrs C C C C S C C S S S Tstms C S S C C S S S Obvis PF F Heat index 92 92 85 86 95 96 89 Max heat 92 93 95 96 86 Flood A Date 08/16 Sun 08/17/25 Mon 08/18/25 Tue 08/19/25 Wed 08/20/25 EDT 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 91 71 93 71 93 71 91 70 89 Temp 89 84 75 73 90 85 75 73 90 84 75 73 89 82 75 72 86 80 Dewpt 71 70 70 69 70 70 68 68 71 69 69 69 71 69 69 69 70 69 PWind Dir NE E NE SE NE SE NW SE W Wind Char LT LT LT LT LT LT LT LT LT Avg Clouds SC FW FW FW FW FW FW FW FW FW FW FW FW SC SC SC SC SC PoP 12hr 20 5 10 0 10 10 20 20 40 Rain shwrs S S S C Tstms S S S C $$ TNZ036-140800- Oak Ridge-Anderson TN 36.00N 84.24W Elev. 913 ft 153 PM EDT Wed Aug 13 2025 Date 08/13/25 Thu 08/14/25 Fri 08/15/25 Sat 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 70 87 70 90 70 Temp 79 77 75 73 71 72 80 86 83 81 75 73 72 72 82 88 89 83 77 74 72 72 Dewpt 72 70 72 72 71 71 73 73 72 71 71 70 69 70 73 72 72 71 69 68 68 68 RH 79 79 90 97100 97 79 65 70 72 87 90 90 93 74 59 57 67 76 82 87 87 Wind Dir SW SW SW W W SW S N N W N N N NE NE NE N NW N N N NE Wind Spd 3 2 2 1 1 1 1 2 2 2 1 1 1 1 1 2 2 1 1 1 1 1 Clouds B1 B1 B1 B1 B2 B2 B1 B2 B2 SC B1 SC B1 B1 SC SC SC SC SC FW SC SC PoP 12hr 30 50 20 20 5 QPF 12hr 0.03 0.03 0 0 0 Rain shwrs C C C C S C C S S S Tstms C S S C C S S S Obvis PF PF F Heat index 84 93 88 85 87 95 96 88 Max heat 93 93 95 96 85 Flood A Date 08/16 Sun 08/17/25 Mon 08/18/25 Tue 08/19/25 Wed 08/20/25 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 92 69 93 71 94 71 91 70 90 Temp 90 84 74 72 91 85 74 73 92 84 75 73 90 82 74 72 87 79 Dewpt 70 69 69 69 70 69 68 68 71 69 69 69 71 70 69 69 71 69 PWind Dir NE N NE N NE N NE NW W Wind Char LT LT LT LT LT LT LT LT LT Avg Clouds SC FW FW FW FW FW FW FW FW FW FW FW SC SC SC SC SC SC PoP 12hr 10 5 10 0 10 5 20 20 40 Rain shwrs S S S C Tstms S S S C $$ TNZ099-140800- Chattanooga Airport-Hamilton TN 35.03N 85.22W Elev. 688 ft 153 PM EDT Wed Aug 13 2025 Date 08/13/25 Thu 08/14/25 Fri 08/15/25 Sat EDT 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 71 88 72 91 72 Temp 79 76 74 73 73 73 81 87 87 81 77 75 73 74 83 88 90 84 78 76 73 74 Dewpt 71 72 74 73 72 71 74 73 72 72 72 72 71 71 74 73 71 72 72 71 70 70 RH 77 87100100 97 93 79 63 61 74 85 90 93 90 74 61 54 67 82 85 90 87 Wind Dir S NW S SE SW SW NW NW NW N NW NW N N N N NW NW N N N N Wind Spd 3 3 2 1 1 1 2 2 3 2 1 1 1 1 2 2 3 2 1 1 1 1 Clouds B1 B1 B1 B1 B1 B1 SC SC SC B1 SC SC SC B1 SC SC SC SC SC FW FW SC PoP 12hr 40 50 30 30 5 QPF 12hr 0.05 0.09 0 0 0 Rain shwrs L C C C C S S C C C C C Tstms C S S S C C C C C Obvis PF F Heat index 86 94 94 85 90 96 96 90 Max heat 94 94 96 96 87 Flood A Date 08/16 Sun 08/17/25 Mon 08/18/25 Tue 08/19/25 Wed 08/20/25 EDT 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 93 72 93 71 94 72 93 71 92 Temp 90 84 75 74 91 85 75 73 91 85 76 74 91 84 76 73 89 82 Dewpt 72 72 71 70 71 71 70 69 72 71 71 70 71 71 70 70 71 71 PWind Dir NE NE NE N NE N N SW W Wind Char LT LT LT LT LT LT LT LT LT Avg Clouds FW SC FW FW FW FW FW FW FW FW FW FW FW SC SC FW SC SC PoP 12hr 20 5 20 5 20 5 30 10 40 Rain shwrs S S S C C Tstms S S S C C $$ NCZ060-140800- Tusquitee RAWS-Forestry-Cherokee NC 35.07N 84.12W Elev. 1600 ft 153 PM EDT Wed Aug 13 2025 Date 08/13/25 Thu 08/14/25 Fri 08/15/25 Sat 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 66 86 66 Temp 77 74 72 70 68 69 77 83 83 78 72 69 67 68 79 85 84 78 72 69 68 68 Dewpt 71 72 71 69 68 67 72 71 69 70 69 68 66 66 71 70 69 70 69 68 65 64 RH 82 93 97 97100 93 85 67 63 76 90 97 97 93 77 61 61 76 90 97 90 87 Max/Min RH 100 61 100 59 97 Wind Dir W SW SE N N N NW NW NW NW N N N N NW NW N N N N N N Wind Dir Deg 26 20 14 0 0 0 29 29 30 30 0 0 0 0 32 30 33 0 0 0 0 0 Wind Spd 3 2 1 0 0 0 2 4 4 2 0 0 0 0 1 2 2 1 0 0 0 0 Clouds B1 B2 B2 B2 B2 B2 B1 B1 FW SC SC SC B1 B1 SC SC SC SC SC SC B1 B1 Clouds (%) 62 70 74 78 86 78 64 62 22 35 50 49 60 64 35 45 36 44 37 39 52 57 Vsby 10 10 10 5 3 2 10 10 10 10 10 10 PoP 12hr 50 50 30 40 10 QPF 12hr 0.17 0.02 0 0.08 0 Rain shwrs L C C C C C S C C C C C Tstms C S S S C C C C C Obvis PF PF PF Heat index 88 87 90 88 Max heat 88 89 90 89 Flood A ChanceThunder 50 50 30 40 10 Max Mix Hgt AGL Mix Hgt 3800 4400 Max Vent Rt 22700 21100 T Wind Dir NW NW T Wind Spd 5 4 ADI 23 22 Max LVORI 10 Stability B D D A A F F A A G F Ceiling NONE NONE NONE NONE NONE NONE NONE NONE NONE NONE NONE Sta Pres 27.88 27.89 27.91 27.91 27.93 27.96 27.99 27.99 27.97 27.99 27.99 Date 08/16 Sun 08/17/25 Mon 08/18/25 Tue 08/19/25 Wed 08/20/25 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 65 88 65 89 65 87 65 87 Temp 86 77 69 67 86 78 69 67 88 79 69 67 86 77 69 67 84 76 Dewpt 69 69 67 66 69 69 66 65 68 69 67 66 69 69 67 66 67 68 PWind Dir N E N N N E N E N Wind Char LT LT LT LT LT LT LT LT LT Avg Clouds SC SC SC SC SC FW FW FW FW SC FW SC SC SC SC SC SC SC PoP 12hr 40 10 30 5 20 10 30 20 50 Rain shwrs C C S C S S C Tstms C C S C S 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 $$