Point Forecast Matrices
Issued by NWS Knoxville/Tri Cities, TN
Issued by NWS Knoxville/Tri Cities, TN
990 FOUS54 KMRX 150521 PFMMRX Point Forecast Matrices National Weather Service Morristown TN 120 AM EDT Tue Jul 15 2025 TNZ017-152000- Tri Cities Airport-Sullivan TN 36.50N 82.41W Elev. 1536 ft 120 AM EDT Tue Jul 15 2025 Date Tue 07/15/25 Wed 07/16/25 Thu 07/17/25 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 91 69 90 70 89 Temp 70 71 82 87 87 83 75 72 70 72 81 86 87 82 74 73 71 72 81 85 86 81 Dewpt 69 70 73 72 71 72 71 70 69 70 73 73 73 72 72 71 70 71 74 74 73 73 RH 97 97 74 61 59 70 87 93 97 93 77 65 63 72 93 93 97 97 79 70 65 77 Wind Dir E SE SW W S SE E SE E SE SW SW SW SW S S S S SW W SW SW Wind Spd 0 0 1 2 3 2 2 2 1 1 3 5 5 4 2 1 1 2 4 6 6 3 Clouds SC SC FW SC SC SC SC SC SC SC SC SC B1 B1 B1 SC SC B1 B1 B1 B1 B1 PoP 12hr 60 30 70 40 70 QPF 12hr 0.14 0.03 0.06 0.06 0.10 Rain shwrs C L C C C C L L C C S S C C L L C Tstms C L C S C L L C C S C L L C Heat index 87 93 93 88 86 93 94 87 86 93 93 86 Max heat 96 97 94 95 84 94 95 Date Fri 07/18/25 Sat 07/19/25 Sun 07/20/25 Mon 07/21/25 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 70 88 70 87 69 89 70 89 Temp 73 72 84 80 72 71 83 81 72 72 85 82 72 71 86 82 Dewpt 71 71 74 72 70 71 73 73 71 71 74 73 71 71 73 73 PWind Dir S W SW W S SW SW SW Wind Char LT LT LT LT LT LT LT LT Avg Clouds B1 SC B1 B1 B2 B2 B1 B1 SC SC SC SC B1 B1 B1 SC PoP 12hr 30 70 30 60 30 60 40 50 Rain shwrs C S C L C C L C S S L C S C C Tstms C C L C S C C S C C S C $$ TNZ071-152000- Knoxville McGhee Tyson Airport-Blount TN 35.80N 83.98W Elev. 979 ft 120 AM EDT Tue Jul 15 2025 Date Tue 07/15/25 Wed 07/16/25 Thu 07/17/25 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 94 74 93 74 92 Temp 73 75 86 91 93 87 80 77 75 76 85 90 91 85 78 76 74 76 85 90 90 85 Dewpt 71 71 74 73 71 72 72 72 71 72 75 75 74 73 73 73 71 72 75 75 74 73 RH 93 87 68 56 49 61 77 85 87 87 72 62 58 67 85 90 90 87 72 62 60 67 Wind Dir NE NE W W W SW S S S S SW SW SW SW S S S S SW SW SW S Wind Spd 1 1 1 2 3 3 2 2 2 2 3 5 6 4 2 2 2 2 5 6 6 5 Clouds SC FW FW SC SC SC SC B1 B1 SC SC SC SC B1 B1 SC SC B1 SC B1 B1 SC PoP 12hr 40 30 60 40 60 QPF 12hr 0.01 0.03 0.07 0.03 0.06 Rain shwrs C C C C S S L L C C S S C C L L C Tstms C C C S S L L C S S S C L L C Heat index 94100100 94 84 94101101 92 94101 99 92 Max heat 100 101 90 101 102 87 101 102 Date Fri 07/18/25 Sat 07/19/25 Sun 07/20/25 Mon 07/21/25 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 74 92 73 92 74 93 74 93 Temp 77 76 89 83 76 75 89 85 76 75 90 85 77 76 91 86 Dewpt 72 72 75 73 73 72 75 74 73 72 75 73 73 73 75 73 PWind Dir SW SW SW SW S SW SW SW Wind Char LT LT LT LT LT LT LT LT Avg Clouds B1 SC B1 B1 B1 SC SC SC SC SC SC SC SC SC SC SC PoP 12hr 30 70 30 60 20 50 30 50 Rain shwrs C S C L C S L S S C C S S C Tstms C S L C S L S S C C S C $$ TNZ036-152000- Oak Ridge-Anderson TN 36.00N 84.24W Elev. 913 ft 120 AM EDT Tue Jul 15 2025 Date Tue 07/15/25 Wed 07/16/25 Thu 07/17/25 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 93 72 92 73 92 Temp 72 74 86 90 92 86 79 75 73 75 85 90 90 84 78 75 74 75 84 90 89 84 Dewpt 70 71 75 74 73 72 72 72 71 73 75 76 74 73 72 72 72 72 76 76 74 73 RH 93 90 70 60 54 63 79 90 93 94 72 64 60 70 82 90 93 90 77 64 61 70 Wind Dir NE NE S SW SW W W S SW SW SW SW SW SW S SW SW SW SW SW SW SW Wind Spd 1 1 1 2 2 2 1 1 1 1 2 4 4 2 2 2 2 2 3 4 4 3 Clouds SC SC FW SC SC SC SC SC SC SC SC SC SC B1 SC SC SC B1 B1 B1 B1 B1 PoP 12hr 40 30 60 30 60 QPF 12hr 0 0.01 0.05 0.02 0.06 Rain shwrs C C C C S S L L C C S S C C L L C Tstms C C C C S L C C S S S C L L C Heat index 95 99101 92 94102 99 90 93102 98 90 Max heat 99 101 87 102 103 87 102 101 Date Fri 07/18/25 Sat 07/19/25 Sun 07/20/25 Mon 07/21/25 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 72 90 73 91 72 92 73 93 Temp 75 75 89 82 74 75 89 83 75 75 90 85 75 75 91 84 Dewpt 73 73 76 73 72 72 76 74 73 73 75 73 73 73 76 74 PWind Dir SW SW SW SW SW SW W SW Wind Char LT LT LT LT LT LT LT LT Avg Clouds B1 B1 B1 B1 B1 B1 B1 B1 SC SC SC B1 SC SC SC SC PoP 12hr 30 70 30 60 20 60 30 50 Rain shwrs C S C L C S L S S L C S C Tstms C C L C S L S S L C S C $$ TNZ099-152000- Chattanooga Airport-Hamilton TN 35.03N 85.22W Elev. 688 ft 120 AM EDT Tue Jul 15 2025 Date Tue 07/15/25 Wed 07/16/25 Thu 07/17/25 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 96 75 94 75 93 Temp 75 75 86 93 94 88 81 77 75 76 86 91 92 85 80 77 76 76 85 91 91 85 Dewpt 73 73 76 74 73 74 74 74 73 74 75 76 75 74 75 74 73 74 76 76 74 74 RH 94 94 72 54 51 63 79 90 94 94 70 62 58 70 85 90 90 94 75 62 58 70 Wind Dir N N SE W W W SW S S S S S S S S S S S S S S S Wind Spd 1 1 1 2 3 2 1 1 1 2 3 4 5 3 2 2 2 2 3 5 5 3 Clouds SC FW FW FW FW SC SC SC SC SC SC SC SC B1 SC SC SC SC SC B1 B1 B1 PoP 12hr 30 20 60 30 70 QPF 12hr 0.03 0.02 0.05 0.01 0.07 Rain shwrs C C S S S S L L C C S S C C L L C Tstms C C S S S L L C S S S S C L L C Heat index 96103103 97 86 95103103 93 85 94103101 93 Max heat 103 105 94 103 105 90 103 103 Date Fri 07/18/25 Sat 07/19/25 Sun 07/20/25 Mon 07/21/25 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 75 92 74 93 74 93 74 94 Temp 77 76 89 83 76 75 90 84 76 75 90 84 77 76 92 86 Dewpt 74 74 76 74 74 74 76 74 74 74 76 75 74 74 76 75 PWind Dir S S SW SW SW W SW W Wind Char LT LT LT LT LT LT LT LT Avg Clouds B1 SC SC B1 B1 B1 SC SC SC FW SC B1 SC SC SC SC PoP 12hr 30 70 20 70 20 60 20 60 Rain shwrs C S L S S L S S L S S L Tstms C S L S S L S S L S S C $$ NCZ060-152000- Tusquitee RAWS-Forestry-Cherokee NC 35.07N 84.12W Elev. 1600 ft 120 AM EDT Tue Jul 15 2025 Date Tue 07/15/25 Wed 07/16/25 Thu 07/17/25 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 92 69 89 69 88 Temp 68 69 83 88 87 79 72 71 69 70 80 85 84 78 72 70 69 70 80 84 84 78 Dewpt 68 68 73 71 71 72 70 70 69 70 74 73 73 72 71 70 69 70 75 74 73 72 RH 100 97 72 57 59 79 93 97100100 82 67 70 82 97100100100 85 72 70 82 Min/Max RH 57 100 67 100 67 Wind Dir N N SE W S E E SE E SE S S S SE SE SE SE SE S S S SE Wind Dir Deg 0 0 15 24 18 7 11 12 11 12 17 18 18 15 12 13 14 15 18 19 18 14 Wind Spd 0 0 1 2 2 2 1 1 1 1 2 4 3 2 1 1 1 1 2 3 3 2 Clouds SC SC CL SC SC B1 B1 B1 B2 B1 SC B1 B1 B1 B1 SC B1 B1 SC B2 B1 B1 Clouds (%) 47 33 3 34 43 56 58 58 70 60 43 56 55 57 55 42 62 68 48 72 62 66 Vsby 7 10 10 10 10 10 10 7 7 7 10 6 PoP 12hr 60 40 70 50 80 QPF 12hr 0.05 0.13 0.23 0.14 0.29 Rain shwrs C C C C S S C C L L C C S S C C D D C Tstms C C C C S C L L C S S S S C L L C Heat index 89 94 93 85 92 90 85 91 90 Max heat 94 94 92 92 91 93 ChanceThunder 60 40 70 40 70 Max Mix Hgt AGL Mix Hgt 5900 4600 3900 Max Vent Rt 23400 32000 35200 T Wind Dir S S S T Wind Spd 3 6 6 ADI 23 32 35 Max LVORI 9 9 10 Stability G A B F F B B G F B B Ceiling NONE NONE NONE NONE NONE NONE NONE NONE NONE NONE NONE Sta Pres 28.00 27.96 27.93 27.97 27.96 27.96 27.94 27.96 27.99 27.98 27.96 Date Fri 07/18/25 Sat 07/19/25 Sun 07/20/25 Mon 07/21/25 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 68 89 68 90 68 90 68 91 Temp 70 70 85 78 71 70 86 79 70 70 87 79 71 70 87 80 Dewpt 70 69 73 72 70 69 73 72 70 70 73 73 71 70 73 72 PWind Dir SE SW S W S W S NW Wind Char LT LT LT LT LT LT LT LT Avg Clouds B1 B1 B1 B1 B2 B1 SC SC SC SC SC SC SC B1 SC SC PoP 12hr 40 70 30 70 30 70 30 60 Rain shwrs C C L C S L C S L C S L Tstms C S L C S L C S L C S L This is an experimental product for planning and review purposes only, and is not to be substituted for an official fire weather spot forecast $$