Point Forecast Matrices
Issued by NWS Knoxville/Tri Cities, TN
Issued by NWS Knoxville/Tri Cities, TN
564 FOUS54 KMRX 191744 PFMMRX Point Forecast Matrices National Weather Service Morristown TN 144 PM EDT Sat Jul 19 2025 TNZ017-200800- Tri Cities Airport-Sullivan TN 36.50N 82.41W Elev. 1536 ft 144 PM EDT Sat Jul 19 2025 Date 07/19/25 Sun 07/20/25 Mon 07/21/25 Tue 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 86 69 Temp 78 78 73 72 72 72 77 82 83 79 74 72 71 72 78 82 83 79 73 71 70 71 Dewpt 72 70 70 70 70 70 73 74 74 70 71 70 70 70 73 73 72 71 70 70 68 69 RH 82 76 90 93 93 93 87 77 74 74 90 93 97 93 85 74 70 77 90 97 93 93 Wind Dir SW SW SW SW SW SW W W W SW SW SW SW SW W W W W SE E E E Wind Spd 6 5 4 4 5 5 6 8 6 5 3 2 2 3 4 5 5 3 1 1 1 1 Clouds B1 B1 B2 B2 B2 B2 B2 B1 B1 B1 B2 B2 B2 B2 B2 B2 B1 B1 B2 B1 B2 B2 PoP 12hr 60 70 50 70 40 QPF 12hr 0.17 0.71 0.24 0.50 0.03 Rain shwrs L L C C S S C C L C C C C C C L L C C S S S Tstms L C S S S S S C L C C S S S C C L C Heat index 88 89 87 88 Max heat 90 92 90 91 Date 07/22 Wed 07/23/25 Thu 07/24/25 Fri 07/25/25 Sat 07/26/25 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 67 90 67 91 68 91 70 92 Temp 84 81 70 69 86 82 70 69 86 84 71 71 88 84 72 72 87 83 Dewpt 72 70 66 66 69 69 66 65 69 69 66 66 71 71 69 69 72 72 PWind Dir NE E S SE SW SE W S W Wind Char LT LT LT LT LT LT LT LT LT Avg Clouds B1 SC FW SC SC FW FW FW FW FW FW FW FW FW FW SC SC SC PoP 12hr 50 20 20 5 20 10 30 20 50 Rain shwrs S C S S S C S C Tstms S C S S S C S C $$ TNZ071-200800- Knoxville McGhee Tyson Airport-Blount TN 35.80N 83.98W Elev. 979 ft 144 PM EDT Sat Jul 19 2025 Date 07/19/25 Sun 07/20/25 Mon 07/21/25 Tue EDT 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 74 91 74 93 74 Temp 86 80 77 76 75 75 83 88 88 84 78 76 74 75 84 89 90 84 78 76 74 75 Dewpt 73 70 72 72 71 72 75 76 73 73 73 72 72 73 75 75 74 73 73 73 71 71 RH 65 72 85 87 87 90 77 68 61 70 85 87 93 94 74 64 60 70 85 90 90 87 Wind Dir SW SW SW SW SW SW SW W W W SW SW SW SW W W W N S E E NE Wind Spd 9 8 5 5 5 5 5 5 6 5 3 2 2 2 2 3 5 4 2 1 1 1 Clouds B2 B2 B2 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 B1 SC B1 B1 B1 B1 B1 B1 SC PoP 12hr 30 60 30 60 20 QPF 12hr 0.50 0.02 0.12 0.09 0.07 Rain shwrs L C S C C C C S S S S L L S S Tstms L C S C C C S S S S S L L S Heat index 93 83 90 99 96 90 92 99 99 90 Max heat 94 99 100 86 99 101 87 Date 07/22 Wed 07/23/25 Thu 07/24/25 Fri 07/25/25 Sat 07/26/25 EDT 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 93 73 94 73 94 73 95 73 95 Temp 90 86 76 75 91 86 77 75 91 88 77 75 93 87 77 76 93 88 Dewpt 73 72 71 70 73 70 70 68 71 71 70 69 71 70 71 71 72 71 PWind Dir NE E N SE SW S W S W Wind Char LT LT LT LT LT LT LT LT LT Avg Clouds SC SC SC SC SC SC SC SC FW FW FW FW FW FW SC FW FW SC PoP 12hr 40 10 20 10 20 10 30 20 40 Rain shwrs C S S C S C Tstms C S S C S C $$ TNZ036-200800- Oak Ridge-Anderson TN 36.00N 84.24W Elev. 913 ft 144 PM EDT Sat Jul 19 2025 Date 07/19/25 Sun 07/20/25 Mon 07/21/25 Tue 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 90 73 92 73 Temp 85 79 76 74 73 75 83 88 88 83 77 75 74 75 85 89 88 83 77 74 74 74 Dewpt 74 72 72 71 71 72 75 75 75 72 73 73 72 73 75 76 74 74 73 72 71 72 RH 70 79 87 90 93 90 77 66 66 70 87 94 93 94 72 66 63 74 87 93 90 93 Wind Dir SW SW SW SW SW SW SW W W W SW SW SW SW W W W N NW N NE NE Wind Spd 5 4 3 3 3 3 4 4 4 2 2 2 2 2 2 2 3 2 2 1 1 1 Clouds B2 B2 B2 B1 B2 B2 B1 B2 B1 B1 B1 B1 B1 B1 SC B1 B1 B1 B1 B1 B1 B1 PoP 12hr 30 60 30 70 20 QPF 12hr 0.02 0.16 0.07 0.12 0.02 Rain shwrs C C C L C C S S S S L L S S Tstms C C C L C S S S S S L L S S Heat index 93 90 98 98 88 94100 97 90 Max heat 94 98 99 85 100 99 86 Date 07/22 Wed 07/23/25 Thu 07/24/25 Fri 07/25/25 Sat 07/26/25 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 73 94 73 94 73 94 Temp 90 84 75 75 90 85 76 75 91 86 76 75 93 86 76 75 93 87 Dewpt 74 72 70 69 73 70 70 70 72 72 70 70 72 71 71 70 73 71 PWind Dir NE NE S SW S W SW N SW Wind Char LT LT LT LT LT LT LT LT LT Avg Clouds B1 SC SC SC SC SC FW SC FW FW FW FW FW SC SC FW FW SC PoP 12hr 40 5 20 5 20 10 40 10 40 Rain shwrs C S S C C Tstms C S S C C $$ TNZ099-200800- Chattanooga Airport-Hamilton TN 35.03N 85.22W Elev. 688 ft 144 PM EDT Sat Jul 19 2025 Date 07/19/25 Sun 07/20/25 Mon 07/21/25 Tue EDT 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 73 92 74 95 75 Temp 81 80 77 75 75 75 85 90 88 84 79 76 74 76 87 91 91 86 79 77 76 76 Dewpt 74 73 74 73 73 73 76 75 75 74 74 74 73 73 76 75 74 74 73 73 72 73 RH 79 79 90 94 94 94 75 62 66 72 85 94 97 90 70 60 58 68 82 87 87 90 Wind Dir W SW S S S SW W W W W SW SW W W NW W W NW NW NW N N Wind Spd 8 5 2 2 2 2 4 5 6 4 2 1 1 1 2 4 5 3 1 1 1 1 Clouds B2 B2 B1 SC SC SC SC SC SC SC SC SC SC SC SC SC SC B1 SC SC SC SC PoP 12hr 20 50 10 60 5 QPF 12hr 0.01 0.03 0 0.05 0 Rain shwrs L S S C C S S L L Tstms L S S C C S S L C Heat index 86 84 94101 98 91 98102101 94 Max heat 86 101 101 87 102 102 91 Date 07/22 Wed 07/23/25 Thu 07/24/25 Fri 07/25/25 Sat 07/26/25 EDT 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 96 74 94 74 94 74 96 74 97 Temp 92 87 77 76 91 86 77 75 91 87 77 75 93 87 77 76 94 88 Dewpt 75 74 73 73 73 72 71 69 70 72 71 70 71 71 73 72 72 71 PWind Dir N E SE SE SE SE S NW S Wind Char LT LT LT LT LT LT LT LT LT Avg Clouds SC SC SC SC SC SC FW FW FW FW FW FW FW FW FW FW FW SC PoP 12hr 40 10 30 10 20 5 30 10 40 Rain shwrs C C S C C Tstms C C S C C $$ NCZ060-200800- Tusquitee RAWS-Forestry-Cherokee NC 35.07N 84.12W Elev. 1600 ft 144 PM EDT Sat Jul 19 2025 Date 07/19/25 Sun 07/20/25 Mon 07/21/25 Tue 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 89 69 91 68 Temp 79 75 72 71 70 70 80 85 85 79 73 71 69 71 81 86 87 81 73 71 69 69 Dewpt 71 70 69 69 69 69 74 73 72 71 71 70 68 70 74 72 71 71 71 70 69 69 RH 77 84 90 93 97 97 82 67 65 77 93 97 97 97 79 63 59 72 93 97100100 Max/Min RH 97 61 100 59 100 Wind Dir SW W S W W W W W W W W N N NW NW NW NW NW NW N N N Wind Dir Deg 22 24 16 25 25 26 28 28 27 26 25 0 0 29 31 30 29 31 32 0 0 0 Wind Spd 4 2 1 1 1 2 3 5 5 3 1 0 0 1 3 5 5 2 1 0 0 0 Clouds B2 OV B2 B2 OV B1 B1 B1 SC SC SC B1 B1 B1 SC SC SC SC SC SC B1 B1 Clouds (%) 77 90 79 77 88 61 56 53 47 49 49 55 65 59 42 47 40 36 34 42 53 58 Vsby 10 10 7 7 7 7 10 10 10 10 10 10 PoP 12hr 40 50 20 60 20 QPF 12hr 0.34 0.02 0.01 0.05 0.01 Rain shwrs C C S S C C S S S S L L S S S Tstms C C S C C S S L L S S Heat index 85 92 91 86 92 93 85 Max heat 84 92 94 92 93 ChanceThunder 30 50 20 60 20 Max Mix Hgt AGL Mix Hgt 4100 4800 Max Vent Rt 38100 49900 T Wind Dir W NW T Wind Spd 10 11 ADI 38 48 Max LVORI 9 9 Stability B F F B A F F B A G F Ceiling NONE NONE NONE NONE NONE NONE NONE NONE NONE NONE NONE Sta Pres 28.02 27.97 28.00 27.97 27.95 27.94 27.95 27.93 27.87 27.91 27.93 Date 07/22 Wed 07/23/25 Thu 07/24/25 Fri 07/25/25 Sat 07/26/25 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 68 89 66 91 65 92 67 93 Temp 88 80 70 69 85 79 69 68 87 80 69 67 88 80 70 69 89 82 Dewpt 72 72 69 67 69 69 66 65 68 68 65 64 69 68 68 67 69 70 PWind Dir N E SE E SE E W E W Wind Char LT LT LT LT LT LT LT LT LT Avg Clouds SC SC SC SC SC SC FW SC FW SC FW FW FW SC FW FW SC SC PoP 12hr 60 30 40 10 30 10 40 20 40 Rain shwrs S L C C C C S C Tstms S C S C C 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 $$