Point Forecast Matrices
Issued by NWS Knoxville/Tri Cities, TN
Issued by NWS Knoxville/Tri Cities, TN
217 FOUS54 KMRX 031732 PFMMRX Point Forecast Matrices National Weather Service Morristown TN 132 PM EDT Wed Sep 3 2025 TNZ017-040800- Tri Cities Airport-Sullivan TN 36.50N 82.41W Elev. 1536 ft 132 PM EDT Wed Sep 3 2025 Date 09/03/25 Thu 09/04/25 Fri 09/05/25 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 58 78 61 85 62 Temp 73 67 61 60 59 60 70 74 74 68 64 63 62 62 73 80 83 75 68 65 63 64 Dewpt 64 63 61 59 58 59 64 65 66 65 63 63 62 62 67 67 66 66 64 63 62 62 RH 73 87100 96 96 96 81 74 76 90 97100100100 81 65 57 74 87 93 97 93 Wind Dir S S S SE SE S SW SW SW S S S S S SW SW W SW SE S SE SE Wind Spd 5 2 2 2 2 2 8 12 10 5 2 2 2 2 6 10 9 2 2 2 2 2 Clouds B1 FW FW FW SC SC B1 B1 B2 SC SC SC SC SC SC FW FW FW SC SC B1 B2 PoP 12hr 10 50 30 5 20 QPF 12hr 0 0.33 0.03 0 0 Rain shwrs C S C C C C C S S S S C Tstms C S C C C S S Date 09/06 Sun 09/07/25 Mon 09/08/25 Tue 09/09/25 Wed 09/10/25 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 78 58 71 51 75 52 77 55 78 Temp 76 70 62 58 68 63 54 52 72 65 55 54 74 67 58 56 75 68 Dewpt 68 66 61 58 56 53 50 49 53 54 52 51 56 56 53 53 59 58 PWind Dir SW N N NE NE E E E NE Wind Char LT LT LT LT LT LT LT LT LT Avg Clouds B1 B2 B2 B2 B1 SC SC SC SC SC SC SC SC SC SC SC SC SC PoP 12hr 60 30 20 5 5 0 5 10 10 Rain shwrs C L C C S Tstms S C $$ TNZ071-040800- Knoxville McGhee Tyson Airport-Blount TN 35.80N 83.98W Elev. 979 ft 132 PM EDT Wed Sep 3 2025 Date 09/03/25 Thu 09/04/25 Fri 09/05/25 Sat EDT 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 63 82 65 90 67 Temp 79 73 67 65 64 64 73 79 79 73 69 67 66 66 78 86 88 80 74 71 68 68 Dewpt 65 66 65 62 62 63 67 68 68 68 67 65 65 65 70 69 68 68 67 66 65 66 RH 62 79 93 90 93 97 81 69 69 84 93 93 97 97 76 57 52 67 79 84 90 93 Wind Dir SW SW S SW S SW SW SW W S S S SW SW SW SW SW S S S S SW Wind Spd 6 3 4 4 4 5 10 13 11 5 4 3 3 3 8 10 9 5 5 4 3 3 Clouds SC SC FW FW SC SC SC B1 B1 FW SC SC SC FW FW FW FW FW SC SC B1 B1 PoP 12hr 20 50 40 5 30 QPF 12hr 0 0.23 0.04 0 0.04 Rain shwrs S S S C C C C C C C C S Tstms S S C C C C C S Heat index 90 92 83 Max heat 84 90 92 Date 09/06 Sun 09/07/25 Mon 09/08/25 Tue 09/09/25 Wed 09/10/25 EDT 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 81 61 76 55 79 57 79 58 81 Temp 80 73 65 61 73 67 60 56 76 70 62 58 77 71 62 59 78 73 Dewpt 70 69 63 59 60 56 53 52 56 59 57 56 60 61 58 57 61 60 PWind Dir W N NE NE NE NE NE E NE Wind Char LT LT GN LT LT LT LT LT LT Avg Clouds B2 B1 B2 B2 SC SC SC SC SC SC SC SC SC SC SC SC SC SC PoP 12hr 50 30 10 5 5 5 10 10 10 Rain shwrs S C C S Tstms S C $$ TNZ036-040800- Oak Ridge-Anderson TN 36.00N 84.24W Elev. 913 ft 132 PM EDT Wed Sep 3 2025 Date 09/03/25 Thu 09/04/25 Fri 09/05/25 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 61 81 63 89 66 Temp 79 72 66 64 63 63 73 78 78 71 67 65 65 65 76 85 86 79 72 69 68 67 Dewpt 66 65 65 64 63 63 67 69 69 67 66 65 65 65 70 71 69 68 68 67 65 66 RH 64 79 97100100100 81 74 74 87 97100100100 82 63 57 69 87 93 90 97 Wind Dir SW SW SW W W SW SW SW SW SW SW SW SW SW SW SW SW S SW SW W W Wind Spd 4 2 2 2 2 3 6 9 6 3 2 1 1 2 4 6 5 2 2 2 2 2 Clouds SC SC FW FW SC B1 B1 B1 B1 FW SC SC SC SC SC FW FW FW SC B1 B1 B2 PoP 12hr 20 60 40 5 40 QPF 12hr 0 0.31 0.04 0 0.19 Rain shwrs S S S C S C L C C C C C C C Tstms S S S S C C C C C S S Heat index 90 90 Max heat 90 92 Date 09/06 Sun 09/07/25 Mon 09/08/25 Tue 09/09/25 Wed 09/10/25 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 79 59 74 54 78 56 79 57 81 Temp 79 71 63 59 73 66 58 55 75 68 60 57 77 70 61 58 79 71 Dewpt 70 67 61 56 57 55 51 50 55 57 55 54 60 60 57 56 61 60 PWind Dir W N NE NE NE NE NE NE NE Wind Char LT LT LT LT LT LT LT LT LT Avg Clouds B2 B2 B2 B1 SC SC FW SC SC SC SC SC SC SC SC SC SC SC PoP 12hr 50 20 10 0 5 5 10 5 10 Rain shwrs C C S S Tstms S C $$ TNZ099-040800- Chattanooga Airport-Hamilton TN 35.03N 85.22W Elev. 688 ft 132 PM EDT Wed Sep 3 2025 Date 09/03/25 Thu 09/04/25 Fri 09/05/25 Sat EDT 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 65 86 65 92 68 Temp 82 76 70 67 66 65 75 83 84 76 71 69 67 66 80 89 89 82 75 72 70 69 Dewpt 65 65 66 65 65 65 68 68 68 68 68 67 67 66 70 69 67 68 68 68 67 67 RH 56 69 87 93 97100 79 61 59 76 90 93100100 72 52 48 63 79 87 90 93 Wind Dir SW SE S S S S SW SW W SW S S S S S SW SW S S S S SW Wind Spd 5 2 2 2 2 4 5 9 9 4 2 2 2 2 4 6 5 3 2 2 2 2 Clouds SC FW SC SC B1 SC SC FW SC SC FW CL FW FW CL FW FW SC SC SC SC SC PoP 12hr 20 30 20 0 20 QPF 12hr 0.03 0.15 0 0 0 Rain shwrs S S S S S S S S S S Tstms S S S S S S Heat index 86 87 83 94 92 85 Max heat 85 86 88 94 94 Date 09/06 Sun 09/07/25 Mon 09/08/25 Tue 09/09/25 Wed 09/10/25 EDT 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 86 64 78 60 79 60 80 61 83 Temp 84 75 67 64 75 70 62 60 75 71 63 61 77 73 64 62 80 74 Dewpt 70 68 65 60 58 56 53 52 56 59 58 57 59 61 59 58 61 61 PWind Dir W N N N NE E E E NE Wind Char LT LT GN GN LT LT LT LT LT Avg Clouds B1 B1 B1 SC SC SC SC SC B1 SC SC SC SC SC SC SC SC SC PoP 12hr 40 20 10 0 5 5 10 5 10 Rain shwrs S C S Tstms S C $$ NCZ060-040800- Tusquitee RAWS-Forestry-Cherokee NC 35.07N 84.12W Elev. 1600 ft 132 PM EDT Wed Sep 3 2025 Date 09/03/25 Thu 09/04/25 Fri 09/05/25 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 58 81 60 88 62 Temp 76 69 63 60 59 60 70 77 77 70 64 63 62 61 76 84 84 75 68 65 63 63 Dewpt 63 63 62 60 59 60 65 66 65 65 64 63 61 61 68 66 64 66 65 63 62 62 RH 64 81 97100100100 84 69 67 84100100 97100 76 55 51 74 90 93 97 97 Max/Min RH 100 67 100 50 100 Wind Dir W SE SE E E SE SW SW SW SW SE SE SE SE SW W SW S SE SE SE SE Wind Dir Deg 27 15 12 11 10 14 21 22 22 20 14 14 13 13 22 24 23 19 14 13 13 13 Wind Spd 3 1 1 1 1 2 4 5 5 2 1 1 1 1 2 5 4 2 1 1 1 1 Clouds B1 FW FW SC SC B2 B1 SC B1 SC FW FW FW SC FW FW FW FW FW SC SC B1 Clouds (%) 58 25 23 44 46 74 56 48 59 35 24 19 25 34 10 12 20 19 18 28 42 58 Vsby 10 10 10 10 7 7 10 10 10 10 10 10 PoP 12hr 30 30 10 5 20 QPF 12hr 0.02 0.22 0 0 0 Rain shwrs S C S C C C S S S S S Tstms S C C C C S S ChanceThunder 30 30 5 5 20 Max Mix Hgt AGL Mix Hgt 4500 6400 Max Vent Rt 53500 45800 T Wind Dir SW SW T Wind Spd 10 6 ADI 54 45 Max LVORI 9 10 Stability A G F B A G G B A G F Ceiling NONE 8900 NONE NONE NONE 9800 8900 NONE 8900 NONE NONE Sta Pres 27.81 27.82 27.83 27.82 27.78 27.83 27.88 27.90 27.86 27.93 27.94 Date 09/06 Sun 09/07/25 Mon 09/08/25 Tue 09/09/25 Wed 09/10/25 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 85 59 78 54 78 54 77 55 81 Temp 83 71 63 60 75 65 57 55 75 66 58 56 75 66 58 56 78 68 Dewpt 67 66 63 59 58 56 53 52 56 56 55 53 56 57 55 53 59 59 PWind Dir W NW N N SE E SE E NE Wind Char LT LT LT LT LT LT LT LT LT Avg Clouds B1 B1 B1 B1 B1 SC SC B1 B1 B1 B1 B1 B1 SC SC B1 B1 SC PoP 12hr 50 20 20 5 10 5 10 10 10 Rain shwrs S C S S Tstms S C S This is an experimental product for planning and review purposes only, and is not to be substituted for an official fire weather spot forecast $$