Point Forecast Matrices
Issued by NWS Knoxville/Tri Cities, TN
Issued by NWS Knoxville/Tri Cities, TN
652 FOUS54 KMRX 301743 PFMMRX Point Forecast Matrices National Weather Service Morristown TN 143 PM EDT Wed Jul 30 2025 TNZ017-310800- Tri Cities Airport-Sullivan TN 36.50N 82.41W Elev. 1536 ft 143 PM EDT Wed Jul 30 2025 Date 07/30/25 Thu 07/31/25 Fri 08/01/25 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 70 83 66 Temp 88 82 75 73 71 72 80 83 83 80 75 72 71 71 77 79 80 77 71 68 66 67 Dewpt 72 73 72 72 71 71 75 74 73 72 71 71 70 71 72 72 70 68 66 65 63 64 RH 59 74 90 97100 97 85 74 72 77 87 97 97100 85 79 72 74 84 90 90 90 Wind Dir S E E N SE SE W W SW N SW SW SW W N NW N N NE NE NE NE Wind Spd 2 2 1 1 1 1 2 4 4 2 2 1 1 2 3 5 5 5 3 2 3 4 Clouds B1 B1 B1 B2 B2 B1 B1 B1 B1 SC B1 B1 B2 B2 B2 B2 B1 SC SC SC B1 B2 PoP 12hr 50 80 50 70 40 QPF 12hr 0.02 0.18 0.06 0.15 0.03 Rain shwrs C C S C D L C C S S C C L L C C S S C Tstms C C S C L L C C S S C L L S Heat index 95 87 85 90 89 84 82 84 Max heat 97 92 92 84 85 Date 08/02 Sun 08/03/25 Mon 08/04/25 Tue 08/05/25 Wed 08/06/25 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 80 63 82 60 84 62 83 64 85 Temp 76 75 66 64 77 76 64 62 79 77 65 64 79 77 67 66 81 78 Dewpt 66 64 61 59 61 61 56 56 61 63 59 59 62 63 62 63 66 66 PWind Dir NE E E E E E SE E S Wind Char LT LT LT LT LT LT LT LT LT Avg Clouds B1 B1 SC B1 B1 SC SC SC SC SC SC SC B1 SC SC SC SC SC PoP 12hr 50 30 30 30 30 30 50 40 40 Rain shwrs C C C S S C C S S C C S C C C S C C Tstms C S C S C S C S C $$ TNZ071-310800- Knoxville McGhee Tyson Airport-Blount TN 35.80N 83.98W Elev. 979 ft 143 PM EDT Wed Jul 30 2025 Date 07/30/25 Thu 07/31/25 Fri 08/01/25 Sat EDT 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 74 91 74 88 70 Temp 90 83 79 77 75 75 83 88 90 84 79 76 75 75 82 85 85 80 75 73 71 70 Dewpt 74 74 74 73 72 73 75 76 74 73 73 73 72 72 74 74 73 70 69 68 67 66 RH 60 74 85 87 90 94 77 68 60 70 82 90 90 90 77 70 67 72 82 84 87 87 Wind Dir W NW SE S SW SW SW W NW E S SW SW W N N N NE NE NE NE NE Wind Spd 3 3 2 2 1 2 3 3 4 3 2 2 2 2 3 5 6 5 5 4 4 5 Clouds B1 B2 B1 B2 B2 B1 B1 B1 B1 B1 B1 SC B1 B1 B1 B1 B1 B1 SC SC B1 B1 PoP 12hr 60 70 30 70 20 QPF 12hr 0.06 0.02 0.06 0.11 0.01 Rain shwrs C L C S S S C L L C C C C L L S S S Tstms C C S S S C L L C S C L L S Heat index 99 90 90 99 99 90 88 93 92 83 Max heat 105 86 99 101 86 93 93 Heat Y Date 08/02 Sun 08/03/25 Mon 08/04/25 Tue 08/05/25 Wed 08/06/25 EDT 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 83 68 84 66 86 67 86 68 88 Temp 81 78 71 69 80 78 70 67 84 79 70 69 83 80 72 70 85 81 Dewpt 70 68 68 66 68 67 65 63 66 65 65 65 67 66 65 66 69 69 PWind Dir NE NE NE E NE E NE SE SW Wind Char LT LT LT LT LT LT LT LT LT Avg Clouds B1 B1 B1 B1 B1 B1 B1 SC SC SC B1 SC SC SC SC SC SC SC PoP 12hr 60 40 50 30 40 30 50 30 40 Rain shwrs S L C C C C C S S C C C S C C S S C Tstms S C C S C C S C C S C S S C $$ TNZ036-310800- Oak Ridge-Anderson TN 36.00N 84.24W Elev. 913 ft 143 PM EDT Wed Jul 30 2025 Date 07/30/25 Thu 07/31/25 Fri 08/01/25 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 73 91 73 87 68 Temp 91 82 77 76 74 75 84 89 88 84 77 76 73 74 82 85 84 79 74 72 70 70 Dewpt 75 73 74 74 73 73 76 75 74 74 74 72 72 72 74 73 72 68 68 66 65 65 RH 60 74 90 94 97 94 77 64 63 72 90 87 97 93 77 67 67 69 82 81 84 84 Wind Dir W NE S E SW SW SW W NW SE NW W NW N N N N N NE NE NE NE Wind Spd 2 2 1 1 1 2 2 2 2 2 2 1 1 2 2 3 5 4 3 3 3 4 Clouds B1 B2 B2 B1 B2 B2 B1 B1 B1 SC B1 SC B1 B1 B1 B2 B1 B1 SC SC B1 B1 PoP 12hr 50 70 30 70 20 QPF 12hr 0.04 0.68 0.04 0.10 0.01 Rain shwrs C C C S S C C C C C C C L L S S Tstms C C C S C C C C S C L C S Heat index 102 87 93 99 97 91 88 92 90 Max heat 105 84 99 100 87 92 92 Heat Y Date 08/02 Sun 08/03/25 Mon 08/04/25 Tue 08/05/25 Wed 08/06/25 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 84 68 83 66 85 67 85 67 87 Temp 81 77 70 69 80 77 69 67 82 78 70 69 82 78 70 69 84 80 Dewpt 70 68 68 68 69 67 64 64 66 65 64 65 68 66 66 66 70 69 PWind Dir NE NE E NE E NE E N SW Wind Char LT LT LT LT LT LT LT LT LT Avg Clouds B1 B1 SC B2 B2 B1 B1 SC B1 SC SC B1 SC B1 SC B1 B1 SC PoP 12hr 50 30 60 30 50 30 50 30 40 Rain shwrs C C C C L C S C C C C C C C S S C Tstms C C S L C S C C S C S S C $$ TNZ099-310800- Chattanooga Airport-Hamilton TN 35.03N 85.22W Elev. 688 ft 143 PM EDT Wed Jul 30 2025 Date 07/30/25 Thu 07/31/25 Fri 08/01/25 Sat EDT 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 75 93 74 92 71 Temp 91 86 80 77 76 76 84 90 89 84 79 76 75 76 84 88 87 81 76 74 72 72 Dewpt 74 74 74 75 74 75 77 76 76 75 75 74 74 74 76 75 75 73 72 70 68 68 RH 58 68 82 94 94 97 80 64 66 74 88 94 97 94 77 66 68 77 87 87 87 87 Wind Dir S E S SE S S SW SW S S SW W W NW N NW N N N N N NE Wind Spd 3 2 2 1 1 1 2 3 4 2 1 1 1 1 2 4 5 5 4 3 3 4 Clouds B1 B1 B1 B1 B1 B1 B1 SC B1 B1 SC SC SC SC SC SC SC SC SC SC SC SC PoP 12hr 50 60 20 70 10 QPF 12hr 0.13 0.38 0.01 0.13 0 Rain shwrs C C C S S L L S S S S L L S Tstms C C S S L C S S L L Heat index 101 94 85 94102100 92 93 98 96 86 Max heat 103 90 102 100 87 98 98 Heat Y Date 08/02 Sun 08/03/25 Mon 08/04/25 Tue 08/05/25 Wed 08/06/25 EDT 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 83 70 84 68 86 68 86 70 88 Temp 81 78 72 71 80 78 70 69 82 79 70 69 83 78 72 71 84 81 Dewpt 71 70 70 69 69 67 64 64 66 66 66 66 68 70 69 69 71 71 PWind Dir NE E SE SE SE E SE S S Wind Char LT LT LT LT LT LT LT LT LT Avg Clouds B1 B1 B1 B1 B1 B1 SC SC SC SC SC SC B1 SC SC SC SC SC PoP 12hr 60 30 60 20 50 30 60 20 50 Rain shwrs S L C C C L S S C C C S C L S S S C Tstms S C C S L S S C S S C S S C $$ NCZ060-310800- Tusquitee RAWS-Forestry-Cherokee NC 35.07N 84.12W Elev. 1600 ft 143 PM EDT Wed Jul 30 2025 Date 07/30/25 Thu 07/31/25 Fri 08/01/25 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 88 68 89 66 Temp 85 79 73 71 70 70 81 85 84 80 73 71 70 70 81 86 85 78 71 68 67 67 Dewpt 73 72 72 71 69 70 74 74 73 73 72 71 69 70 74 72 71 71 69 68 66 67 RH 67 79 97100 97100 79 70 70 79 97100 97100 79 63 63 79 93100 97100 Max/Min RH 100 65 100 61 100 Wind Dir S SE E N N N SW W W SW N N N N NW NW NW N N NE NE E Wind Dir Deg 17 13 10 0 0 0 22 27 27 20 0 0 0 0 30 30 31 33 33 3 5 7 Wind Spd 2 2 1 0 0 0 1 3 3 2 0 0 0 0 2 4 5 3 2 1 1 1 Clouds B2 B1 B1 B2 B2 B2 B1 B1 B1 B1 B1 SC B1 B1 SC SC SC B1 SC SC B1 B2 Clouds (%) 70 64 64 73 78 84 58 66 60 59 51 48 60 61 28 37 38 55 44 36 64 72 Vsby 10 6 10 7 7 7 10 6 10 10 10 7 7 10 10 6 6 10 10 7 PoP 12hr 60 80 40 80 30 QPF 12hr 0.02 0.13 0.03 0.13 0.01 Rain shwrs C L C C C S C D C C C C C D D C C C Tstms C C C S S C L C C S C L L C Heat index 92 86 93 90 84 86 92 90 Max heat 92 93 93 92 91 ChanceThunder 50 70 30 70 30 Max Mix Hgt AGL Mix Hgt 4100 4900 Max Vent Rt 24400 42200 T Wind Dir W NW T Wind Spd 4 9 ADI 24 42 Max LVORI 10 10 Stability B F F B B G F A A G F Ceiling NONE NONE NONE NONE NONE NONE NONE NONE NONE 25000 25000 Sta Pres 27.91 27.90 27.94 27.93 27.91 27.94 27.96 MM MM MM MM Date 08/02 Sun 08/03/25 Mon 08/04/25 Tue 08/05/25 Wed 08/06/25 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 81 64 82 61 82 61 83 63 85 Temp 78 73 66 64 77 73 64 62 79 73 65 63 79 74 66 65 81 76 Dewpt 69 67 65 63 64 63 60 59 62 63 62 61 64 66 64 64 68 68 PWind Dir E E SE E SE E SE SE S Wind Char LT LT LT LT LT LT LT LT LT Avg Clouds B2 B1 B1 B2 B1 B1 SC B1 SC SC B1 B1 B1 B1 SC B1 B1 SC PoP 12hr 80 50 60 40 50 40 60 40 50 Rain shwrs C D C C C L C S C C C C C L C S C C Tstms S C C S L C S 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 $$