Point Forecast Matrices
Issued by NWS Knoxville/Tri Cities, TN
Issued by NWS Knoxville/Tri Cities, TN
947 FOUS54 KMRX 011732 PFMMRX Point Forecast Matrices National Weather Service Morristown TN 131 PM EDT Mon Sep 1 2025 TNZ017-020800- Tri Cities Airport-Sullivan TN 36.50N 82.41W Elev. 1536 ft 131 PM EDT Mon Sep 1 2025 Date 09/01/25 Tue 09/02/25 Wed 09/03/25 Thu 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 53 77 56 76 58 Temp 77 69 61 58 55 55 68 74 75 68 60 58 57 58 67 72 73 68 62 60 59 59 Dewpt 53 54 52 51 50 50 54 54 54 56 55 54 54 55 58 59 60 60 59 58 56 58 RH 43 59 72 77 83 83 61 50 48 65 84 86 90 90 73 64 64 76 90 93 90 96 Wind Dir NE E E E NE E SE NW NW N SE E E E S SW SW S S S S S Wind Spd 3 3 3 2 2 2 2 2 2 2 2 2 1 2 3 5 5 2 2 2 2 2 Clouds SC SC FW FW FW B1 SC SC SC FW SC SC B1 B2 B2 B1 B1 SC FW SC SC B1 PoP 12hr 0 10 20 60 20 QPF 12hr 0 0 0 0.05 0.01 Rain shwrs S S C C L L S S C Tstms C C Date 09/04 Fri 09/05/25 Sat 09/06/25 Sun 09/07/25 Mon 09/08/25 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 60 80 59 81 54 77 53 79 Temp 74 68 62 61 77 71 62 61 77 70 59 55 73 67 56 54 75 68 Dewpt 65 63 62 60 61 61 58 57 61 57 53 51 52 52 50 49 54 56 PWind Dir SW SW SW S W N N NE NE Wind Char GN LT LT LT LT LT LT LT LT Avg Clouds B1 SC B1 SC SC FW FW SC SC SC SC SC SC FW FW SC SC SC PoP 12hr 70 30 10 10 20 10 10 5 10 Rain shwrs C L C S S Tstms C S S $$ TNZ071-020800- Knoxville McGhee Tyson Airport-Blount TN 35.80N 83.98W Elev. 979 ft 131 PM EDT Mon Sep 1 2025 Date 09/01/25 Tue 09/02/25 Wed 09/03/25 Thu EDT 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 61 80 61 79 62 Temp 77 72 67 64 63 62 71 78 79 72 67 64 63 62 70 76 78 72 67 65 63 64 Dewpt 62 63 63 61 59 59 60 61 59 59 60 60 59 60 62 62 62 63 63 62 62 62 RH 60 73 87 90 87 90 68 56 50 64 78 87 87 93 76 62 58 73 87 90 97 93 Wind Dir N E S S NW E N NW NW NE SE S S S SW SW SW SW S S S SW Wind Spd 3 2 2 2 2 2 2 3 3 2 2 2 2 2 4 6 8 4 4 4 5 5 Clouds SC SC SC B1 B1 B1 B1 SC FW SC SC SC B1 B2 B1 B1 SC SC SC SC B1 SC PoP 12hr 10 20 30 50 30 QPF 12hr 0 0 0 0.05 0.10 Rain shwrs S S C C C C C C C C C C S Tstms S S S S C C S S S S Date 09/04 Fri 09/05/25 Sat 09/06/25 Sun 09/07/25 Mon 09/08/25 EDT 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 81 62 85 63 84 58 80 57 82 Temp 78 72 66 63 82 76 67 64 81 73 63 58 77 71 62 58 79 74 Dewpt 67 65 63 61 63 62 60 60 62 59 54 52 53 54 52 51 57 59 PWind Dir SW SW SW S W N N NE NE Wind Char GN LT GN LT LT LT LT LT LT Avg Clouds SC SC SC SC FW FW FW SC SC SC SC SC FW FW FW SC FW SC PoP 12hr 60 30 5 10 20 10 5 5 5 Rain shwrs S L C S Tstms S C S S $$ TNZ036-020800- Oak Ridge-Anderson TN 36.00N 84.24W Elev. 913 ft 131 PM EDT Mon Sep 1 2025 Date 09/01/25 Tue 09/02/25 Wed 09/03/25 Thu 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 60 79 61 78 61 Temp 77 70 66 64 62 62 71 77 78 71 65 63 62 62 70 76 76 70 65 64 62 63 Dewpt 62 62 63 62 61 59 61 60 60 59 60 60 59 60 63 63 63 63 63 63 62 62 RH 60 76 90 93 97 90 71 56 54 66 84 90 90 93 78 64 64 78 93 97100 97 Wind Dir NW NE N SW N N SW W W N NE N W SW SW SW SW SW SW SW SW SW Wind Spd 2 2 1 1 1 1 2 2 2 1 1 1 1 1 3 5 5 2 2 2 2 3 Clouds SC SC SC B1 B1 B2 B2 SC FW SC SC B1 B2 B2 B2 B1 SC SC SC SC B1 B2 PoP 12hr 10 20 40 60 30 QPF 12hr 0 0 0.01 0.07 0.03 Rain shwrs S S S C C L L L L S S C C C Tstms S S S S S S C C S S S S Date 09/04 Fri 09/05/25 Sat 09/06/25 Sun 09/07/25 Mon 09/08/25 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 60 84 61 83 56 79 56 82 Temp 78 70 64 61 81 75 65 63 81 71 61 57 77 70 60 57 79 72 Dewpt 67 65 62 61 62 61 60 59 61 58 53 50 52 53 50 50 56 59 PWind Dir SW SW SW SW W N N N NE Wind Char LT LT LT LT LT LT LT LT LT Avg Clouds B1 B1 SC SC FW FW FW SC SC SC SC SC SC FW FW FW FW FW PoP 12hr 70 20 5 10 20 10 5 5 10 Rain shwrs C L S S Tstms S C S S $$ TNZ099-020800- Chattanooga Airport-Hamilton TN 35.03N 85.22W Elev. 688 ft 131 PM EDT Mon Sep 1 2025 Date 09/01/25 Tue 09/02/25 Wed 09/03/25 Thu EDT 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 62 82 63 81 63 Temp 79 74 68 66 64 63 72 79 80 74 67 65 64 63 72 77 78 73 67 65 64 64 Dewpt 61 63 63 62 60 58 58 58 59 60 61 60 60 60 63 64 64 64 64 64 63 64 RH 54 69 84 87 87 84 61 49 49 62 81 84 87 90 73 64 62 73 90 97 97100 Wind Dir SE SE SE S SE SE S S NW E E S S S S S S S S S S S Wind Spd 4 2 2 2 1 1 2 3 4 2 1 1 1 2 4 5 5 3 2 2 2 3 Clouds SC SC SC SC SC SC SC SC SC FW SC SC B1 B1 B1 B1 SC SC SC SC SC SC PoP 12hr 10 20 40 50 30 QPF 12hr 0 0 0.07 0.06 0.05 Rain shwrs S S S S S C C C C C C C C C C C Tstms S S S S S S S S S C C S S S Date 09/04 Fri 09/05/25 Sat 09/06/25 Sun 09/07/25 Mon 09/08/25 EDT 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 85 63 88 65 87 60 83 60 84 Temp 82 75 66 64 85 78 68 66 84 75 64 61 79 73 63 61 80 75 Dewpt 67 66 65 63 64 63 62 61 62 60 55 52 53 53 53 52 58 59 PWind Dir SW SW SW S NW N N N NE Wind Char LT LT LT LT LT LT LT LT LT Avg Clouds SC SC SC FW FW FW FW FW SC SC SC FW FW FW FW SC SC SC PoP 12hr 50 10 5 10 20 5 5 0 10 Rain shwrs C C S Tstms S C S $$ NCZ060-020800- Tusquitee RAWS-Forestry-Cherokee NC 35.07N 84.12W Elev. 1600 ft 131 PM EDT Mon Sep 1 2025 Date 09/01/25 Tue 09/02/25 Wed 09/03/25 Thu 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 56 80 57 77 58 Temp 74 67 61 59 57 56 69 76 75 68 62 60 58 58 69 74 74 67 62 60 59 59 Dewpt 59 61 60 56 52 52 56 57 57 58 58 57 55 55 59 59 59 60 60 59 58 58 RH 59 81 97 90 83 86 63 52 54 70 87 90 90 90 70 59 59 78 93 96 96 96 Max/Min RH 97 50 93 56 97 Wind Dir NW E E E SE SE SE NW NW SE SE SE SE E S S SW SE SE SE SE SE Wind Dir Deg 31 8 10 11 12 12 12 30 31 13 12 12 12 11 16 19 20 15 13 13 14 15 Wind Spd 2 1 2 1 1 1 1 2 2 1 1 1 1 1 2 4 4 2 2 2 2 2 Clouds B1 SC B1 B1 B1 B2 SC SC SC SC B1 B1 B1 B2 B1 SC SC SC SC SC B1 B1 Clouds (%) 54 50 54 52 53 72 45 36 37 40 54 56 65 79 65 48 45 34 44 50 59 68 Vsby 10 10 10 10 7 9 10 10 10 10 10 10 PoP 12hr 10 10 30 50 40 QPF 12hr 0 0 0 0.09 0.07 Rain shwrs S C C C C C C C C C C S Tstms S S S C C C S S S ChanceThunder 10 10 20 30 30 Max Mix Hgt AGL Mix Hgt 4900 3500 Max Vent Rt 19700 31000 T Wind Dir NE S T Wind Spd 3 8 ADI 20 31 Max LVORI 7 6 Stability A G F A A F F A A G F Ceiling 23500 23500 NONE NONE NONE NONE NONE NONE 13800 NONE NONE Sta Pres 27.99 27.99 28.01 27.97 27.92 27.91 27.92 27.91 27.83 27.84 27.83 Date 09/04 Fri 09/05/25 Sat 09/06/25 Sun 09/07/25 Mon 09/08/25 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 59 84 59 84 54 82 54 82 Temp 78 69 61 60 81 72 62 60 82 71 59 55 79 67 58 55 79 69 Dewpt 64 62 61 59 61 60 59 57 61 59 56 52 55 54 52 51 57 58 PWind Dir S SE SW SE W N N NE SE Wind Char LT LT LT LT LT LT LT LT LT Avg Clouds B1 SC SC SC FW FW FW SC SC SC FW SC SC FW FW SC SC SC PoP 12hr 50 20 5 5 20 10 10 5 10 Rain shwrs S C S S Tstms S C S 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 $$