Point Forecast Matrices
Issued by NWS Knoxville/Tri Cities, TN
Issued by NWS Knoxville/Tri Cities, TN
522 FOUS54 KMRX 011712 PFMMRX Point Forecast Matrices National Weather Service Morristown TN 111 PM EDT Mon Sep 1 2025 TNZ017-020800- Tri Cities Airport-Sullivan TN 36.50N 82.41W Elev. 1536 ft 111 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 75 57 75 58 Temp 76 69 61 58 55 55 67 73 73 67 61 59 59 58 66 70 72 67 62 61 60 60 Dewpt 55 55 54 51 51 51 55 56 56 58 57 57 56 57 60 61 61 61 60 59 59 58 RH 48 61 78 77 86 86 65 55 55 73 87 93 90 96 81 73 68 81 93 93 96 93 Wind Dir NE E E E NE E SE NW NW N SE E E E S SW SW S SE SE SE 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 SC SC SC SC SC B1 PoP 12hr 0 10 20 50 20 QPF 12hr 0 0 0 0.08 0 Rain shwrs S S C C C C S S S Tstms S C 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 77 57 77 56 79 52 78 53 79 Temp 74 68 62 58 74 68 59 58 76 69 57 54 73 67 56 54 75 68 Dewpt 65 64 61 58 58 58 55 55 59 58 54 51 53 53 51 50 55 56 PWind Dir SW SW SW S W N N NE NE Wind Char LT LT LT LT LT LT LT LT LT Avg Clouds SC SC B1 SC SC FW FW SC SC FW SC SC FW FW FW FW FW FW PoP 12hr 60 40 5 10 10 5 5 5 5 Rain shwrs S L C S Tstms S C $$ TNZ071-020800- Knoxville McGhee Tyson Airport-Blount TN 35.80N 83.98W Elev. 979 ft 111 PM EDT Mon Sep 1 2025 Date 09/01/25 Tue 09/02/25 Wed 09/03/25 Thu EDT 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 61 77 62 78 62 Temp 79 72 66 64 62 61 71 74 76 71 66 64 63 63 69 75 77 72 67 65 63 63 Dewpt 62 62 62 60 59 60 61 61 61 61 61 60 60 61 64 64 65 64 64 62 62 62 RH 56 71 87 87 90 97 71 64 60 71 84 87 90 93 84 69 67 76 90 90 97 97 Wind Dir N E S S NW E N NW NW NE SE S E SE S SW SW SW S S S S Wind Spd 3 2 2 2 2 2 2 3 3 2 2 2 2 2 3 5 6 4 3 3 3 4 Clouds SC SC SC B1 B1 B1 B1 SC FW SC SC SC B2 B2 B1 B1 SC SC SC SC B1 SC PoP 12hr 10 20 30 40 30 QPF 12hr 0 0 0 0.05 0.01 Rain shwrs S S C C C C C C C C S S S Tstms S S C C S S S S Date 09/04 Fri 09/05/25 Sat 09/06/25 Sun 09/07/25 Mon 09/08/25 EDT 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 80 60 81 59 82 55 80 56 83 Temp 79 70 65 61 79 73 63 60 80 73 62 56 77 70 61 57 79 73 Dewpt 68 66 63 61 61 61 59 58 61 59 55 52 56 55 53 52 57 58 PWind Dir SW SW SW S W N NE NE NE Wind Char GN LT LT LT LT LT LT LT LT Avg Clouds SC SC SC SC FW FW FW SC SC SC SC SC FW FW FW FW FW FW PoP 12hr 50 30 5 10 10 5 5 5 5 Rain shwrs S C C Tstms C $$ TNZ036-020800- Oak Ridge-Anderson TN 36.00N 84.24W Elev. 913 ft 111 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 59 76 60 77 61 Temp 79 71 65 63 61 61 70 74 76 69 64 63 61 62 68 74 75 69 65 63 63 63 Dewpt 63 63 62 61 60 60 62 61 61 61 61 60 61 61 64 65 65 64 64 63 62 62 RH 58 76 90 93 97 97 76 64 60 76 90 90100 97 87 74 71 84 97100 97 97 Wind Dir NW NE N SW N N SW W W N NE N NE N S SW SW SW S SW SW SW Wind Spd 2 2 1 1 1 1 2 2 2 1 1 1 1 1 2 4 4 2 2 2 2 2 Clouds SC SC SC B1 B1 B2 B2 SC FW SC SC B1 B2 B2 B2 B1 SC SC SC B1 B1 B1 PoP 12hr 10 20 40 50 30 QPF 12hr 0 0 0.01 0.13 0 Rain shwrs S S S C C C C C C C C S S C 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 79 57 81 58 82 54 80 55 82 Temp 78 70 62 58 79 72 62 59 80 71 60 56 77 70 60 56 78 71 Dewpt 68 65 62 58 61 61 59 58 60 58 54 51 55 55 51 51 58 58 PWind Dir SW W SW W W N N NE NE Wind Char LT LT LT LT LT LT LT LT LT Avg Clouds B1 SC SC SC FW FW FW SC SC SC SC FW FW FW FW FW FW FW PoP 12hr 60 30 5 10 10 5 5 0 5 Rain shwrs C L C Tstms C $$ TNZ099-020800- Chattanooga Airport-Hamilton TN 35.03N 85.22W Elev. 688 ft 111 PM EDT Mon Sep 1 2025 Date 09/01/25 Tue 09/02/25 Wed 09/03/25 Thu EDT 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 62 79 63 80 64 Temp 78 73 67 65 63 63 71 76 77 73 67 65 64 64 71 77 77 73 68 65 65 64 Dewpt 63 63 63 62 60 59 60 60 61 61 62 62 61 62 64 65 66 66 66 65 64 64 RH 60 71 87 90 90 87 68 58 58 66 84 90 90 93 79 67 69 79 93100 97100 Wind Dir SE SE SE S SE SE S S NW E E S SE SE S S S S S S S S Wind Spd 4 2 2 2 1 1 2 3 4 2 1 1 1 2 3 5 5 3 2 2 2 2 Clouds SC SC SC SC SC SC SC SC SC FW SC SC B1 B1 B1 SC SC SC SC SC SC SC PoP 12hr 10 20 40 50 20 QPF 12hr 0 0 0.02 0.08 0.01 Rain shwrs S S S S S C C C C C C S S S S S Tstms S S S S S C S C C S Date 09/04 Fri 09/05/25 Sat 09/06/25 Sun 09/07/25 Mon 09/08/25 EDT 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 83 60 85 61 85 58 83 58 84 Temp 81 74 65 61 82 76 64 62 83 75 63 59 79 72 63 59 80 75 Dewpt 68 67 64 61 61 61 62 60 62 59 57 53 56 55 54 53 59 59 PWind Dir SW W SW SW NW N N N NE Wind Char LT LT LT LT LT LT LT LT LT Avg Clouds SC SC SC FW FW FW FW FW FW SC SC FW FW FW FW FW FW FW PoP 12hr 40 20 5 5 10 5 5 0 5 Rain shwrs S C S Tstms C $$ NCZ060-020800- Tusquitee RAWS-Forestry-Cherokee NC 35.07N 84.12W Elev. 1600 ft 111 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 55 78 57 77 58 Temp 74 67 62 60 57 56 68 75 74 67 62 60 59 58 68 74 74 67 62 60 60 60 Dewpt 60 60 59 56 53 52 55 56 56 58 57 57 56 57 61 62 61 61 61 59 59 59 RH 62 78 90 87 86 86 63 52 53 73 84 90 90 96 78 66 64 81 97 96 96 96 Max/Min RH 90 50 96 62 100 Wind Dir NW E E E SE SE SE NW NW SE SE SE SE E S S S SE SE SE SE SE Wind Dir Deg 31 8 10 11 12 12 12 30 31 13 12 12 12 11 16 19 18 14 13 13 13 13 Wind Spd 2 1 2 1 1 1 1 2 2 1 1 1 1 2 2 4 4 2 2 1 1 2 Clouds B1 SC B1 B1 B1 B2 SC SC SC SC B1 B1 B2 B2 B1 B1 SC SC SC SC B1 B1 Clouds (%) 54 50 54 52 53 72 45 36 37 40 54 56 70 81 65 55 40 36 32 46 56 62 Vsby 10 10 10 10 7 9 10 10 10 10 10 10 PoP 12hr 10 10 30 50 30 QPF 12hr 0 0 0 0.08 0.01 Rain shwrs S C C C C C C C C S S S Tstms S S C C C S S S S ChanceThunder 10 20 20 40 30 Max Mix Hgt AGL Mix Hgt 4300 3600 Max Vent Rt 20700 26800 T Wind Dir S S T Wind Spd 5 8 ADI 21 28 Max LVORI 6 8 Stability B G F A B F D B B F F Ceiling NONE 23500 NONE NONE NONE NONE NONE NONE NONE NONE 23500 Sta Pres 27.99 27.99 28.00 27.98 27.93 27.91 27.91 27.88 27.83 27.83 27.81 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 57 81 54 83 53 82 53 83 Temp 77 68 61 58 79 70 58 55 81 70 57 54 79 67 58 54 79 68 Dewpt 64 64 61 58 56 58 56 54 58 57 55 51 55 54 53 51 57 57 PWind Dir SW SE W SE W N N NE SE Wind Char LT LT LT LT LT LT LT LT LT Avg Clouds SC SC SC SC FW FW FW SC SC SC SC SC FW FW FW SC SC FW PoP 12hr 50 30 5 5 10 5 5 5 10 Rain shwrs S C C 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 $$