Point Forecast Matrices
Issued by NWS Knoxville/Tri Cities, TN
Issued by NWS Knoxville/Tri Cities, TN
466 FOUS54 KMRX 152238 PFMMRX Point Forecast Matrices National Weather Service Morristown TN 638 PM EDT Fri Aug 15 2025 TNZ017-160800- Tri Cities Airport-Sullivan TN 36.50N 82.41W Elev. 1536 ft 638 PM EDT Fri Aug 15 2025 Date 08/15/25 Sat 08/16/25 Sun 08/17/25 Mon 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 66 89 65 89 68 Temp 81 74 70 68 69 81 86 88 82 74 70 67 68 80 86 88 82 75 71 69 70 Dewpt 68 67 67 66 67 69 67 65 68 67 66 65 66 69 67 67 70 68 68 67 68 RH 65 79 90 93 93 67 53 47 63 79 87 93 93 69 53 50 67 79 90 93 93 Wind Dir NE E NE E E N NE NE NE E E E E W NW NW NW NE NE E E Wind Spd 2 1 1 1 1 1 2 2 2 1 1 1 1 1 2 3 2 1 1 1 1 Clouds FW SC SC SC SC FW FW FW FW FW FW FW FW FW FW FW FW FW FW FW SC PoP 12hr 5 10 0 10 10 QPF 12hr 0 0 0 0 0 Obvis PF PF PF Heat index 84 89 85 83 89 91 86 Max heat 89 91 92 91 92 83 Date 08/18 Tue 08/19/25 Wed 08/20/25 Thu 08/21/25 Fri 08/22/25 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 90 67 90 68 85 66 82 65 80 Temp 87 83 72 70 87 81 71 70 83 78 69 68 79 76 68 67 78 75 Dewpt 69 70 67 67 68 71 68 68 71 70 68 68 69 67 62 64 66 67 PWind Dir NE E NW SE W NE NE E SE Wind Char LT LT LT LT LT LT LT LT LT Avg Clouds FW FW FW FW FW FW FW SC SC B1 SC SC B1 B1 SC B1 B1 B1 PoP 12hr 10 10 20 30 60 40 50 30 50 Rain shwrs S C C L C S C C C S C C Tstms S S C S C S C $$ TNZ071-160800- Knoxville McGhee Tyson Airport-Blount TN 35.80N 83.98W Elev. 979 ft 638 PM EDT Fri Aug 15 2025 Date 08/15/25 Sat 08/16/25 Sun 08/17/25 Mon EDT 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 71 93 70 92 72 Temp 84 78 74 73 73 83 90 92 85 78 75 72 73 84 90 91 86 79 76 73 74 Dewpt 71 71 71 70 70 72 70 67 69 70 69 68 69 70 70 68 70 69 69 68 69 RH 65 79 90 90 90 70 52 44 59 76 82 87 87 63 52 47 59 72 79 84 84 Wind Dir N SW SW SE E N NE N NW SE SE S S NW N N NE NE E E E Wind Spd 2 1 1 1 1 2 3 4 3 2 1 1 1 2 3 4 3 2 1 1 1 Clouds B1 SC SC SC SC FW FW FW SC FW FW FW FW FW FW FW FW FW FW FW FW PoP 12hr 5 10 0 5 5 QPF 12hr 0 0 0 0 0 Rain shwrs Tstms Obvis PF Heat index 89 88 96 96 89 88 96 95 91 Max heat 94 85 96 96 85 96 96 88 Date 08/18 Tue 08/19/25 Wed 08/20/25 Thu 08/21/25 Fri 08/22/25 EDT 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 94 72 94 72 91 70 86 69 84 Temp 91 86 77 74 91 86 76 74 89 81 73 72 84 80 72 70 82 77 Dewpt 71 71 70 70 71 72 71 71 72 72 71 70 72 70 69 68 70 69 PWind Dir NE E N SE W E N NE NW Wind Char LT LT LT LT LT LT LT LT LT Avg Clouds FW FW FW FW FW FW FW FW SC SC SC SC B1 B1 B1 B1 B1 B1 PoP 12hr 5 5 10 20 40 30 40 30 40 Rain shwrs S S C C S S C C S C C Tstms S S C C C S S C $$ TNZ036-160800- Oak Ridge-Anderson TN 36.00N 84.24W Elev. 913 ft 638 PM EDT Fri Aug 15 2025 Date 08/15/25 Sat 08/16/25 Sun 08/17/25 Mon 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 93 70 93 72 Temp 83 77 74 72 72 84 91 91 85 77 74 72 72 84 91 91 85 79 75 73 74 Dewpt 71 71 71 69 70 71 69 67 69 69 69 68 68 71 70 69 70 70 69 68 69 RH 67 82 90 90 93 65 49 45 59 76 84 87 87 65 50 49 61 74 82 84 84 Wind Dir N NW N E NE NE NE NE N N N N NE NW N N N N N N NE Wind Spd 2 1 1 1 1 2 2 2 2 1 1 1 1 1 2 2 2 2 1 1 1 Clouds SC SC SC SC SC FW FW FW SC FW FW FW FW FW FW FW FW FW FW FW FW PoP 12hr 5 10 0 5 5 QPF 12hr 0 0 0 0 0 Rain shwrs Tstms Obvis PF PF Heat index 88 89 96 94 89 89 97 96 90 Max heat 94 84 96 96 85 97 98 87 Date 08/18 Tue 08/19/25 Wed 08/20/25 Thu 08/21/25 Fri 08/22/25 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 95 72 95 72 90 70 86 68 83 Temp 92 86 76 74 93 86 76 74 89 82 73 72 85 79 71 70 82 76 Dewpt 72 71 70 70 70 71 71 71 72 72 70 70 72 70 68 67 71 69 PWind Dir NE N E W W N NE NE S Wind Char LT LT LT LT LT LT LT LT LT Avg Clouds FW FW FW FW FW FW FW FW SC SC SC SC B1 B1 SC B1 B1 B1 PoP 12hr 5 5 10 20 50 30 40 30 40 Rain shwrs S S S C C S C C S C C Tstms S S C C S C C S C $$ TNZ099-160800- Chattanooga Airport-Hamilton TN 35.03N 85.22W Elev. 688 ft 638 PM EDT Fri Aug 15 2025 Date 08/15/25 Sat 08/16/25 Sun 08/17/25 Mon EDT 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 71 93 71 93 73 Temp 84 77 75 73 73 84 90 91 85 78 76 73 73 84 90 92 85 79 76 74 75 Dewpt 73 73 73 72 72 73 71 70 72 73 71 71 72 73 71 69 71 71 70 70 70 RH 70 87 94 97 97 70 54 50 65 85 85 93 97 70 54 47 63 77 82 87 84 Wind Dir SW SW SE NE N NE NE NE N E NE SE NE NE NE NE N N N N N Wind Spd 2 1 1 1 1 2 2 3 2 1 1 1 1 1 2 3 2 1 1 1 1 Clouds B1 SC SC SC SC FW FW SC FW FW FW FW FW FW FW FW FW FW FW CL FW PoP 12hr 10 20 0 10 5 QPF 12hr 0 0 0 0 0 Rain shwrs S S Tstms S S Heat index 90 90 96 97 91 90 96 97 90 Max heat 96 85 97 99 88 96 97 88 Date 08/18 Tue 08/19/25 Wed 08/20/25 Thu 08/21/25 Fri 08/22/25 EDT 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 94 72 95 73 93 72 87 69 83 Temp 91 86 76 74 92 87 76 75 91 83 75 73 85 80 73 71 81 77 Dewpt 71 72 72 72 72 73 73 73 73 73 72 71 73 71 70 68 71 71 PWind Dir NE N NE S W N N E SE Wind Char LT LT LT LT LT LT LT LT LT Avg Clouds FW FW FW FW FW FW FW FW FW SC SC SC SC B1 B1 B1 B1 B1 PoP 12hr 10 5 20 10 40 20 40 30 50 Rain shwrs S C S C C S C C Tstms S C S C C S C $$ NCZ060-160800- Tusquitee RAWS-Forestry-Cherokee NC 35.07N 84.12W Elev. 1600 ft 638 PM EDT Fri Aug 15 2025 Date 08/15/25 Sat 08/16/25 Sun 08/17/25 Mon 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 65 88 64 88 66 Temp 78 71 69 68 67 81 87 83 78 71 69 67 66 81 87 86 80 72 70 68 68 Dewpt 70 69 68 67 67 70 69 69 70 69 68 65 65 70 68 68 70 69 67 66 66 RH 76 93 97 97100 69 55 63 76 93 97 93 97 69 53 55 72 90 90 93 93 Max/Min RH 100 55 97 53 93 Wind Dir SE E N N SE E E W NE E N N N N NW N N N N N N Wind Dir Deg 14 10 0 0 13 11 9 26 6 10 0 0 0 33 32 33 33 0 0 0 0 Wind Spd 1 1 0 0 1 1 2 2 1 1 0 0 0 1 2 2 1 0 0 0 0 Clouds B1 SC B1 B1 B2 FW SC SC SC FW SC SC SC FW SC FW FW FW FW SC SC Clouds (%) 53 45 58 55 73 20 39 36 28 18 28 34 39 18 28 20 20 12 15 26 32 Vsby 10 10 7 2 5 10 10 10 10 10 7 3 PoP 12hr 10 40 5 20 5 QPF 12hr 0 0.03 0 0 0 Rain shwrs C C S S Tstms C C S S Obvis PF PF PF Heat index 85 91 87 85 91 89 83 Max heat 89 91 91 91 91 ChanceThunder 10 40 5 20 5 Max Mix Hgt AGL Mix Hgt 5200 5400 Max Vent Rt 20800 35700 T Wind Dir NE N T Wind Spd 4 5 ADI 21 37 Max LVORI 10 10 Stability A G F A A G G A A G G Ceiling NONE NONE NONE NONE NONE 18200 8000 9800 NONE NONE 10800 Sta Pres 27.99 28.01 28.00 27.98 27.95 27.97 27.97 27.95 27.93 27.94 27.96 Date 08/18 Tue 08/19/25 Wed 08/20/25 Thu 08/21/25 Fri 08/22/25 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 90 66 90 66 88 65 83 64 80 Temp 89 79 70 68 89 79 70 69 87 77 68 67 82 75 68 66 79 73 Dewpt 68 71 68 67 68 71 69 68 69 70 67 67 69 68 66 65 68 69 PWind Dir N E N SE NW NE N E SE Wind Char LT LT LT LT LT LT LT LT LT Avg Clouds FW SC SC SC FW SC SC SC SC SC SC B1 B1 B1 B1 B2 B2 B1 PoP 12hr 20 10 30 20 50 30 50 40 60 Rain shwrs S C S C C S S C C C C L Tstms S C S C S 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 $$