Point Forecast Matrices
Issued by NWS Knoxville/Tri Cities, TN
Issued by NWS Knoxville/Tri Cities, TN
458 FOUS54 KMRX 161737 PFMMRX Point Forecast Matrices National Weather Service Morristown TN 137 PM EDT Wed Jul 16 2025 TNZ017-170800- Tri Cities Airport-Sullivan TN 36.50N 82.41W Elev. 1536 ft 137 PM EDT Wed Jul 16 2025 Date 07/16/25 Thu 07/17/25 Fri 07/18/25 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 89 70 88 70 Temp 85 82 76 73 71 73 80 84 85 82 75 73 71 72 80 84 85 80 75 72 71 72 Dewpt 71 71 71 70 69 70 73 73 72 72 71 70 69 70 73 74 73 72 72 70 69 71 RH 63 69 85 90 93 90 79 70 65 72 87 90 93 93 79 72 67 77 90 93 93 97 Wind Dir S SW S E SE SW W W W SW S S S SW W W W SW S S SW SW Wind Spd 6 4 2 2 2 2 5 8 6 4 2 2 1 2 4 6 5 2 1 1 1 2 Clouds B1 B1 B2 SC B1 SC SC SC SC SC B1 B1 B1 B1 B1 B1 B1 B2 B1 B1 B2 B1 PoP 12hr 50 60 40 80 30 QPF 12hr 0.04 0.09 0.04 0.19 0.02 Rain shwrs C C C S C L C C C C C C C D D C C S S C Tstms C C C S C L C C C C C S C L L C C S S S Heat index 90 87 83 91 92 87 84 91 92 84 Max heat 94 93 94 84 92 94 Date 07/19 Sun 07/20/25 Mon 07/21/25 Tue 07/22/25 Wed 07/23/25 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 86 70 86 70 88 69 90 70 91 Temp 83 79 72 71 82 80 72 71 84 81 72 71 86 82 72 72 87 83 Dewpt 74 72 70 70 74 72 71 71 74 73 70 70 73 72 69 69 74 74 PWind Dir SW SW W SW W SE S SE SW Wind Char LT LT LT LT LT LT LT LT LT Avg Clouds B1 B1 B1 B1 B1 B1 B1 B2 B1 B1 B1 SC SC SC SC B1 SC SC PoP 12hr 80 40 60 40 60 40 60 40 40 Rain shwrs C D C S C L C S C L C S S L C S S C Tstms C L C S S L C C L C S C C S C $$ TNZ071-170800- Knoxville McGhee Tyson Airport-Blount TN 35.80N 83.98W Elev. 979 ft 137 PM EDT Wed Jul 16 2025 Date 07/16/25 Thu 07/17/25 Fri 07/18/25 Sat EDT 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 75 94 74 92 74 Temp 91 86 81 77 76 78 85 90 92 87 80 78 75 77 85 90 90 84 79 76 75 76 Dewpt 72 71 71 71 70 71 73 72 71 71 71 71 70 71 74 74 73 73 72 72 71 72 RH 54 61 72 82 82 79 67 56 51 59 74 79 84 82 70 60 58 70 79 87 87 87 Wind Dir SW SW S SW SW SW SW SW SW SW S S SW SW SW SW SW SW S S SW SW Wind Spd 8 5 3 3 3 3 6 8 6 4 3 2 2 2 5 5 5 4 2 2 2 3 Clouds SC SC SC SC SC FW FW SC FW FW SC B1 B1 SC SC B1 B1 B1 B1 B1 SC SC PoP 12hr 30 40 30 70 30 QPF 12hr 0 0 0.01 0.13 0.02 Rain shwrs C C S C C C C S S C C L L C C C Tstms C C S C C C C S C L C C S Heat index 99 91 85 92 97 99 93 83 93 99 98 90 Max heat 101 88 98 100 89 99 101 87 Date 07/19 Sun 07/20/25 Mon 07/21/25 Tue 07/22/25 Wed 07/23/25 EDT 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 90 74 92 74 91 73 95 74 95 Temp 87 83 76 76 88 83 76 76 89 84 76 76 92 87 77 76 92 87 Dewpt 75 73 73 73 75 73 73 73 76 73 72 71 75 74 73 73 74 74 PWind Dir SW SW SW SW W E W S SW Wind Char LT LT LT LT LT LT LT LT LT Avg Clouds SC B1 B1 SC SC B1 B1 B1 SC B1 SC SC SC SC B1 SC SC SC PoP 12hr 70 30 60 30 60 20 50 30 40 Rain shwrs C L C S L C S L S S C C C Tstms C L C S L C S L S S C C C $$ TNZ036-170800- Oak Ridge-Anderson TN 36.00N 84.24W Elev. 913 ft 137 PM EDT Wed Jul 16 2025 Date 07/16/25 Thu 07/17/25 Fri 07/18/25 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 74 93 74 91 72 Temp 89 85 79 76 75 76 85 90 91 86 79 76 75 75 85 89 87 83 77 75 74 75 Dewpt 73 72 71 72 71 71 74 74 73 72 71 72 71 72 75 75 74 73 72 72 72 72 RH 59 65 77 87 87 85 70 60 56 63 77 87 87 90 72 64 65 72 85 90 93 90 Wind Dir SW SW SW SW SW SW SW SW SW SW SW SW SW SW SW SW SW SW SW SW SW SW Wind Spd 5 3 2 2 2 2 5 5 5 2 2 2 2 2 3 4 3 2 1 1 2 2 Clouds B1 SC SC SC SC SC SC SC SC SC B1 B1 B1 B1 SC B1 B2 B2 B1 B1 SC B1 PoP 12hr 20 40 30 80 30 QPF 12hr 0 0 0 0.11 0.02 Rain shwrs C S S S S S C C C C S S C C D D C C C Tstms C S S S S S C C C C S S C L C C S S Heat index 97 91 93 99100 92 94 99 95 89 Max heat 98 87 99 100 88 99 99 86 Date 07/19 Sun 07/20/25 Mon 07/21/25 Tue 07/22/25 Wed 07/23/25 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 72 91 72 91 72 94 74 94 Temp 86 82 75 74 88 82 75 75 88 83 75 75 92 85 76 75 92 86 Dewpt 75 73 72 73 76 74 73 73 76 74 72 71 75 74 73 72 75 74 PWind Dir SW SW SW SW W NE SW NW SW Wind Char LT LT LT LT LT LT LT LT LT Avg Clouds B1 B2 B1 SC SC B1 B1 B1 SC B1 SC SC SC SC B1 B1 SC SC PoP 12hr 70 30 60 30 60 20 60 20 40 Rain shwrs C L C S L C S L S S L S S C Tstms C L C S L C S L S S L S S C $$ TNZ099-170800- Chattanooga Airport-Hamilton TN 35.03N 85.22W Elev. 688 ft 137 PM EDT Wed Jul 16 2025 Date 07/16/25 Thu 07/17/25 Fri 07/18/25 Sat EDT 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 75 95 75 93 75 Temp 92 88 81 78 76 77 86 92 93 87 81 78 75 76 85 91 90 85 79 76 75 76 Dewpt 72 72 73 73 72 72 73 73 72 73 73 72 72 72 75 74 74 74 74 73 72 73 RH 52 59 77 85 87 85 65 54 51 63 77 82 90 87 72 58 60 70 85 90 90 90 Wind Dir S S S S S S S S S S S S S S S S SW SW S SW SW SW Wind Spd 5 3 2 2 2 2 4 5 5 3 2 2 1 2 3 4 5 3 2 2 2 2 Clouds FW SC SC FW FW FW FW FW FW SC SC SC SC SC SC SC B1 B1 B1 SC SC SC PoP 12hr 10 30 20 60 20 QPF 12hr 0 0 0 0.06 0.01 Rain shwrs C C C S S S S L L S S C Tstms C C C S S S S L C S S S Heat index 100 95 86 93101101 94 86 94101 99 93 Max heat 102 92 101 102 92 101 101 90 Date 07/19 Sun 07/20/25 Mon 07/21/25 Tue 07/22/25 Wed 07/23/25 EDT 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 92 75 93 75 94 75 96 76 97 Temp 90 84 77 76 90 85 77 76 91 85 77 76 94 87 77 77 93 87 Dewpt 75 73 74 73 76 75 74 74 76 75 74 74 75 74 74 74 74 74 PWind Dir SW SW W W W N SW SW SE Wind Char LT LT LT LT LT LT LT LT LT Avg Clouds SC B1 SC SC SC B1 B1 SC SC B1 SC SC SC SC SC SC SC SC PoP 12hr 60 20 60 20 60 20 60 20 40 Rain shwrs C L S S L S S L S S L S C Tstms C L S S L S S L S S L S C $$ NCZ060-170800- Tusquitee RAWS-Forestry-Cherokee NC 35.07N 84.12W Elev. 1600 ft 137 PM EDT Wed Jul 16 2025 Date 07/16/25 Thu 07/17/25 Fri 07/18/25 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 69 90 69 90 68 Temp 86 80 73 71 70 71 81 86 87 81 74 71 70 70 81 86 86 79 72 71 69 70 Dewpt 70 70 70 69 68 69 72 71 70 71 69 68 67 69 73 71 71 71 69 69 68 69 RH 59 72 90 93 93 93 74 61 57 72 84 90 90 97 77 61 61 77 90 93 97 97 Max/Min RH 97 55 97 59 100 Wind Dir S S SE E E SE SW S S SE SE N N N SW SW SW SW SE N N S Wind Dir Deg 18 16 14 11 11 15 20 19 19 15 15 0 0 0 21 22 22 21 15 0 0 18 Wind Spd 5 3 2 1 1 1 2 4 4 2 1 0 0 0 2 3 3 2 1 0 0 1 Clouds SC SC SC FW SC SC SC SC SC SC SC SC B1 SC SC SC B1 B1 B1 SC B1 B1 Clouds (%) 33 36 31 22 42 38 32 46 32 37 32 42 52 44 30 49 63 66 55 47 59 52 Vsby 10 10 10 10 10 10 10 10 10 10 10 10 PoP 12hr 20 50 30 70 30 QPF 12hr 0 0.02 0.01 0.22 0.02 Rain shwrs C S S C C C C C C L L C C C Tstms C S S C C C C S C L L C S Heat index 91 83 85 91 92 85 86 91 91 Max heat 93 91 93 91 93 ChanceThunder 20 50 30 70 30 Max Mix Hgt AGL Mix Hgt 4800 4500 Max Vent Rt 40900 36100 T Wind Dir S SW T Wind Spd 9 8 ADI 41 36 Max LVORI 6 10 Stability A G G B B G F B B F F Ceiling NONE NONE NONE NONE NONE NONE NONE NONE NONE NONE NONE Sta Pres 27.93 27.96 28.01 27.99 27.97 28.02 28.04 28.05 28.03 28.05 28.05 Date 07/19 Sun 07/20/25 Mon 07/21/25 Tue 07/22/25 Wed 07/23/25 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 69 90 69 91 68 91 68 92 Temp 85 79 71 70 86 80 71 71 87 80 71 70 88 80 71 70 88 81 Dewpt 73 71 70 70 73 72 70 69 73 72 70 68 73 72 70 68 72 73 PWind Dir SW SW W NW NW NW SW E NE Wind Char LT LT LT LT LT LT LT LT LT Avg Clouds SC B1 B1 B1 SC B1 SC B1 SC SC SC SC SC SC SC SC SC SC PoP 12hr 70 30 60 20 70 30 60 30 50 Rain shwrs C L C S L S S L C S L C S C Tstms C L C S L S S L C S L 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 $$