Point Forecast Matrices
Issued by NWS Knoxville/Tri Cities, TN
Issued by NWS Knoxville/Tri Cities, TN
417 FOUS54 KMRX 021712 PFMMRX Point Forecast Matrices National Weather Service Morristown TN 112 PM EDT Tue Sep 2 2025 TNZ017-030800- Tri Cities Airport-Sullivan TN 36.50N 82.41W Elev. 1536 ft 112 PM EDT Tue Sep 2 2025 Date 09/02/25 Wed 09/03/25 Thu 09/04/25 Fri 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 76 57 77 60 Temp 76 68 61 59 57 57 66 71 74 67 61 59 58 59 70 74 74 68 63 62 60 61 Dewpt 54 56 55 55 54 55 60 61 61 60 59 57 55 56 62 64 64 63 62 60 59 59 RH 46 65 81 87 90 93 81 71 64 78 93 93 90 90 76 71 71 84 97 93 96 93 Wind Dir SW W SE SE E S S SW W S S S SE S SW SW SW SW SW S S S Wind Spd 2 2 2 1 1 2 3 5 5 2 2 2 2 2 8 12 10 4 2 2 1 2 Clouds SC SC SC SC B1 B2 B1 B1 B1 SC FW FW SC SC B1 B1 SC B1 B1 SC B1 SC PoP 12hr 40 60 10 70 30 QPF 12hr 0 0.09 0 0.23 0.07 Rain shwrs S C C C L C C C L L C C Tstms S S S S C C S Date 09/05 Sat 09/06/25 Sun 09/07/25 Mon 09/08/25 Tue 09/09/25 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 61 80 53 76 52 79 55 80 Temp 79 74 65 62 76 70 58 54 72 66 55 53 75 68 58 57 77 69 Dewpt 64 63 61 60 62 57 52 52 53 53 49 49 57 57 54 53 60 60 PWind Dir SW S W N N NE E E SE Wind Char GN LT LT LT LT LT LT LT LT Avg Clouds SC FW FW SC SC SC SC SC SC FW FW FW SC SC SC SC SC SC PoP 12hr 10 10 40 10 10 0 5 5 10 Rain shwrs S C S Tstms C $$ TNZ071-030800- Knoxville McGhee Tyson Airport-Blount TN 35.80N 83.98W Elev. 979 ft 112 PM EDT Tue Sep 2 2025 Date 09/02/25 Wed 09/03/25 Thu 09/04/25 Fri EDT 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 61 81 62 81 63 Temp 77 72 66 64 62 62 72 78 79 73 67 65 64 63 73 78 78 72 68 66 65 64 Dewpt 61 60 61 60 59 59 62 63 63 63 62 61 60 61 66 67 65 64 64 62 61 61 RH 58 66 84 87 90 90 71 60 58 71 84 87 87 93 79 69 64 76 87 87 87 90 Wind Dir N E S NW NE E SW SW SW SW S S S S SW SW SW SW S S S S Wind Spd 3 2 2 2 2 2 4 6 6 4 3 3 5 5 10 13 10 5 4 2 2 3 Clouds SC B1 SC B1 B1 B1 SC SC SC FW FW FW SC SC B1 B1 SC SC SC SC SC SC PoP 12hr 30 40 10 60 20 QPF 12hr 0 0.02 0 0.27 0.05 Rain shwrs C C S S S S C S C C C L L S S Tstms S S S S S S S C C S Date 09/05 Sat 09/06/25 Sun 09/07/25 Mon 09/08/25 Tue 09/09/25 EDT 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 87 65 84 56 80 56 81 59 85 Temp 84 79 69 65 81 74 63 57 77 70 61 57 77 72 64 60 82 75 Dewpt 66 66 63 61 61 57 53 53 55 56 53 52 59 61 59 58 63 63 PWind Dir SW SW NW N NE NE NE E E Wind Char GN LT LT LT GN LT LT LT LT Avg Clouds SC FW FW SC SC SC SC SC FW FW FW SC SC SC SC SC SC SC PoP 12hr 5 20 30 10 5 0 5 5 10 Rain shwrs S C Tstms C $$ TNZ036-030800- Oak Ridge-Anderson TN 36.00N 84.24W Elev. 913 ft 112 PM EDT Tue Sep 2 2025 Date 09/02/25 Wed 09/03/25 Thu 09/04/25 Fri 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 80 61 80 62 Temp 77 70 65 62 61 61 71 77 77 71 66 63 62 63 72 78 77 70 65 64 63 63 Dewpt 62 61 61 60 59 59 63 64 64 63 62 61 60 61 66 68 65 64 64 61 60 60 RH 60 73 87 93 93 93 76 64 64 76 87 93 93 93 81 71 67 81 97 90 90 90 Wind Dir SE N N W S SE SW SW SW SW SW SW SW SW SW SW SW W W SW SW SW Wind Spd 2 2 1 1 1 1 3 5 4 2 2 2 2 3 6 10 6 3 2 2 1 2 Clouds B1 B1 SC SC B2 B1 SC SC SC FW FW FW SC B1 B1 B1 SC SC SC B1 B1 SC PoP 12hr 30 30 10 70 20 QPF 12hr 0.01 0.04 0 0.38 0.03 Rain shwrs C C S S C S C S C C L L S S Tstms S S S S S S C C S Date 09/05 Sat 09/06/25 Sun 09/07/25 Mon 09/08/25 Tue 09/09/25 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 87 63 82 56 80 56 80 58 83 Temp 84 78 67 64 81 72 61 57 76 68 60 57 77 70 62 60 81 74 Dewpt 66 64 62 61 60 56 52 51 53 54 51 50 58 59 58 57 64 63 PWind Dir SW W NW N NE NE NE NE SE Wind Char LT LT LT LT LT LT LT LT LT Avg Clouds SC FW FW B1 SC SC SC SC FW FW FW SC SC SC SC SC SC SC PoP 12hr 5 20 30 10 5 0 10 5 10 Rain shwrs S S C Tstms C $$ TNZ099-030800- Chattanooga Airport-Hamilton TN 35.03N 85.22W Elev. 688 ft 112 PM EDT Tue Sep 2 2025 Date 09/02/25 Wed 09/03/25 Thu 09/04/25 Fri EDT 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 62 83 64 85 64 Temp 79 73 68 64 63 63 73 79 80 74 68 66 65 65 76 82 83 76 70 67 65 65 Dewpt 60 60 61 60 60 61 63 64 64 64 63 63 63 63 66 67 66 65 65 64 63 63 RH 52 64 78 87 90 93 71 60 58 71 84 90 93 93 71 61 57 69 84 90 93 93 Wind Dir SW W SW W SE S S S S S S S S S SW SW SW W SW S S S Wind Spd 3 2 1 1 1 2 3 4 5 2 2 2 2 3 5 9 8 4 2 2 2 2 Clouds B1 B1 SC B1 B1 SC SC SC SC FW FW FW SC SC SC SC SC SC SC FW FW FW PoP 12hr 20 20 10 50 10 QPF 12hr 0.02 0.05 0 0.13 0 Rain shwrs S S S C C C C C Tstms S S C S C C Heat index 85 Max heat 81 82 85 86 Date 09/05 Sat 09/06/25 Sun 09/07/25 Mon 09/08/25 Tue 09/09/25 EDT 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 90 66 87 60 82 59 83 62 85 Temp 88 81 70 67 85 76 65 61 79 73 62 60 79 74 65 63 82 76 Dewpt 66 65 64 62 62 59 55 53 54 55 54 54 60 61 60 60 64 63 PWind Dir SW SW NW N N NE NE E SE Wind Char LT LT LT LT GN LT LT LT LT Avg Clouds FW FW FW SC FW SC SC FW FW FW FW FW SC SC SC SC SC SC PoP 12hr 5 10 20 5 5 0 10 5 20 Rain shwrs S S Tstms S S $$ NCZ060-030800- Tusquitee RAWS-Forestry-Cherokee NC 35.07N 84.12W Elev. 1600 ft 112 PM EDT Tue Sep 2 2025 Date 09/02/25 Wed 09/03/25 Thu 09/04/25 Fri 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 57 79 58 81 60 Temp 74 68 61 59 58 58 69 75 75 68 62 60 59 59 71 78 77 69 64 62 60 62 Dewpt 58 59 59 57 55 56 61 60 60 61 60 58 57 58 64 63 62 62 62 61 59 59 RH 57 73 93 93 90 93 76 60 60 78 93 93 93 96 79 60 60 78 93 97 96 90 Max/Min RH 93 56 96 56 100 Wind Dir NW E SE E E SE SE SW S SE E SE SE SE SW SW SW SW SE S SE SE Wind Dir Deg 31 9 12 10 11 14 14 22 19 15 11 12 14 15 20 22 22 22 15 16 13 14 Wind Spd 2 1 1 1 1 1 2 4 3 1 1 1 1 2 4 5 5 2 1 1 1 1 Clouds B1 B1 B1 B1 B2 OV SC B1 SC SC FW FW B1 B1 SC SC SC SC SC SC FW SC Clouds (%) 57 64 66 59 73 89 46 61 33 40 21 21 55 67 50 32 30 29 37 42 21 35 Vsby 10 10 10 7 7 7 10 10 10 10 10 10 PoP 12hr 20 30 20 50 20 QPF 12hr 0 0.07 0 0.22 0.02 Rain shwrs S S S S C S S C C C C C S S Tstms S S S S S S C C C S ChanceThunder 20 50 20 50 20 Max Mix Hgt AGL Mix Hgt 4600 4700 Max Vent Rt 27000 58700 T Wind Dir S SW T Wind Spd 5 10 ADI 28 57 Max LVORI 8 9 Stability A G F B A G F B A G G Ceiling NONE NONE NONE NONE 10800 8900 NONE NONE NONE 9800 NONE Sta Pres 27.91 27.91 27.90 27.89 27.84 27.84 27.84 27.83 27.77 27.81 27.86 Date 09/05 Sat 09/06/25 Sun 09/07/25 Mon 09/08/25 Tue 09/09/25 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 87 61 85 54 82 54 81 57 82 Temp 84 75 65 62 83 71 59 55 79 68 57 55 78 69 60 58 79 70 Dewpt 63 62 61 59 62 59 56 53 56 56 54 53 59 59 56 55 60 59 PWind Dir SW SE W N N NE SE SE SE Wind Char LT LT LT LT LT LT LT LT LT Avg Clouds FW FW FW SC SC SC SC SC FW FW FW SC SC SC SC SC SC SC PoP 12hr 5 10 30 10 10 5 10 10 20 Rain shwrs C S Tstms 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 $$