Point Forecast Matrices
Issued by NWS Knoxville/Tri Cities, TN
Issued by NWS Knoxville/Tri Cities, TN
021 FOUS54 KMRX 310806 PFMMRX Point Forecast Matrices National Weather Service Morristown TN 406 AM EDT Sun Aug 31 2025 TNZ017-312000- Tri Cities Airport-Sullivan TN 36.50N 82.41W Elev. 1536 ft 406 AM EDT Sun Aug 31 2025 Date Sun 08/31/25 Mon 09/01/25 Tue 09/02/25 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 79 55 79 54 74 Temp 57 58 71 76 75 68 61 59 56 56 69 76 77 69 62 59 55 56 67 72 73 66 Dewpt 54 55 61 61 60 60 58 57 54 53 56 56 55 56 55 53 52 52 56 57 57 58 RH 90 90 71 60 60 76 90 93 93 90 63 50 47 63 78 80 90 86 68 59 57 75 Wind Dir NE NE E E E E E E E NE E NE NE E SE SE E E SW SW W SE Wind Spd 2 2 2 2 4 4 3 2 2 3 2 2 3 3 3 2 2 2 2 4 3 2 Clouds SC B1 B1 B1 B1 SC FW FW SC SC SC SC SC SC SC SC SC B2 B1 SC B1 B1 PoP 12hr 20 5 5 5 20 QPF 12hr 0.03 0 0 0 0 Rain shwrs S S S Tstms S S S Date Wed 09/03/25 Thu 09/04/25 Fri 09/05/25 Sat 09/06/25 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 56 74 58 77 55 74 51 77 Temp 59 58 72 68 61 59 73 67 60 56 70 65 55 53 73 66 Dewpt 57 56 61 61 58 58 62 63 59 56 55 53 51 50 54 54 PWind Dir SE S SE SW W W SW W Wind Char LT LT LT LT LT LT LT LT Avg Clouds SC B1 B1 B1 SC SC SC SC B1 B1 SC FW CL FW SC FW PoP 12hr 30 50 30 60 40 20 5 5 Rain shwrs C C C C S S L C S S Tstms C S C S $$ TNZ071-312000- Knoxville McGhee Tyson Airport-Blount TN 35.80N 83.98W Elev. 979 ft 406 AM EDT Sun Aug 31 2025 Date Sun 08/31/25 Mon 09/01/25 Tue 09/02/25 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 83 61 82 62 77 Temp 62 61 73 81 82 74 69 65 63 62 73 79 80 73 67 64 63 62 70 74 76 71 Dewpt 55 56 61 63 62 62 62 61 60 60 63 62 61 61 62 61 60 60 62 62 61 62 RH 78 84 66 54 51 66 78 87 90 93 71 56 52 66 84 90 90 93 76 66 60 73 Wind Dir NE NE N NW N E E NE NE NE N N NE E SE S S SE SW W NW NE Wind Spd 3 3 2 2 3 4 3 2 2 2 2 3 4 3 2 2 2 2 2 4 4 3 Clouds SC B1 B1 B1 B1 B1 SC FW B1 B1 SC SC SC SC SC SC B1 B2 B2 B1 SC B1 PoP 12hr 10 5 10 20 20 QPF 12hr 0 0 0 0 0 Rain shwrs S S S S S S S Tstms S S S Date Wed 09/03/25 Thu 09/04/25 Fri 09/05/25 Sat 09/06/25 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 62 77 62 80 57 78 55 81 Temp 64 62 75 71 64 63 77 70 62 57 75 70 59 56 77 69 Dewpt 60 60 64 63 62 62 65 64 60 57 55 55 53 53 55 56 PWind Dir SE SW S SW W W SW NW Wind Char LT LT LT GN LT LT LT LT Avg Clouds B1 B1 B1 SC SC B1 B1 SC B1 SC FW FW FW FW FW FW PoP 12hr 40 50 30 40 30 10 5 5 Rain shwrs S C C C C S C C S Tstms S S C S C S $$ TNZ036-312000- Oak Ridge-Anderson TN 36.00N 84.24W Elev. 913 ft 406 AM EDT Sun Aug 31 2025 Date Sun 08/31/25 Mon 09/01/25 Tue 09/02/25 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 83 60 81 61 77 Temp 62 61 73 81 82 73 68 64 62 61 73 79 80 72 66 64 62 62 70 74 75 69 Dewpt 53 55 60 62 61 61 61 60 59 59 63 63 62 61 62 61 60 60 63 62 62 61 RH 72 81 64 53 49 66 78 87 90 93 71 58 54 68 87 90 93 93 78 66 64 76 Wind Dir NE NE E N N N NE NE NE NE E SW N NE E SW SW N S SW SW NE Wind Spd 3 2 2 1 2 2 2 2 1 2 1 2 2 2 1 1 1 1 2 3 3 2 Clouds SC B1 B1 B1 B1 SC SC FW SC B1 B1 SC SC SC SC SC B2 B2 B2 B1 B1 B1 PoP 12hr 5 0 20 20 40 QPF 12hr 0 0 0 0 0 Rain shwrs S S S S C C C C S Tstms S S C C S Date Wed 09/03/25 Thu 09/04/25 Fri 09/05/25 Sat 09/06/25 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 60 76 60 78 55 77 53 80 Temp 63 61 74 70 63 62 76 67 60 56 75 68 57 54 77 68 Dewpt 61 60 64 63 62 61 65 63 58 55 54 54 53 52 55 56 PWind Dir E SW SW SW NW W W NW Wind Char LT LT LT LT LT LT LT LT Avg Clouds B1 B1 B2 B1 SC B1 B1 SC SC SC FW FW FW FW SC FW PoP 12hr 40 50 30 50 30 10 5 5 Rain shwrs S C C C C S S C C S Tstms S S S C S S C S $$ TNZ099-312000- Chattanooga Airport-Hamilton TN 35.03N 85.22W Elev. 688 ft 406 AM EDT Sun Aug 31 2025 Date Sun 08/31/25 Mon 09/01/25 Tue 09/02/25 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 86 64 83 64 81 Temp 64 63 76 83 82 76 70 67 65 65 75 80 81 75 69 67 65 65 73 78 78 73 Dewpt 58 58 63 64 64 64 65 64 63 62 62 62 62 62 63 62 61 60 61 60 61 61 RH 81 84 64 53 55 66 84 90 93 90 64 54 53 64 81 84 87 84 66 54 56 66 Wind Dir N N NE NE NE E SE NE E E SE S SE E SE SE S S S S S SE Wind Spd 2 2 2 2 3 3 2 2 2 2 3 4 4 3 2 1 2 2 3 4 4 2 Clouds FW B1 B1 B1 B1 B1 SC SC SC SC SC SC SC SC SC B1 B1 B1 B1 B1 SC SC PoP 12hr 10 10 20 20 30 QPF 12hr 0 0 0 0 0.03 Rain shwrs S S S S S S C C C C S Tstms S S S S C C S Date Wed 09/03/25 Thu 09/04/25 Fri 09/05/25 Sat 09/06/25 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 63 79 63 82 58 81 57 83 Temp 65 63 77 72 66 64 80 72 62 58 78 71 62 58 79 72 Dewpt 61 61 64 65 64 62 65 63 61 57 56 56 56 54 56 56 PWind Dir SE S S SW NW W NW N Wind Char LT LT LT LT LT LT LT LT Avg Clouds SC B1 B1 SC SC SC SC SC SC FW FW FW FW FW FW FW PoP 12hr 30 50 30 40 20 10 0 5 Rain shwrs S C C C C S C S Tstms S C S C S C S $$ NCZ060-312000- Tusquitee RAWS-Forestry-Cherokee NC 35.07N 84.12W Elev. 1600 ft 406 AM EDT Sun Aug 31 2025 Date Sun 08/31/25 Mon 09/01/25 Tue 09/02/25 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 81 58 80 57 79 Temp 59 59 73 78 75 68 63 61 59 58 70 77 75 67 63 60 58 58 69 75 74 67 Dewpt 58 58 63 62 62 63 61 59 57 57 58 59 59 60 60 58 55 55 57 57 57 59 RH 96 96 71 58 64 84 93 93 93 96 66 54 58 78 90 93 90 90 66 54 55 75 Min/Max RH 58 97 54 93 52 Wind Dir E SE SE NW E E E E SE SE SE NW N E SE SE E E SE S SW SE Wind Dir Deg 11 12 12 29 11 10 11 11 12 12 12 30 34 11 12 12 11 11 15 19 22 15 Wind Spd 1 1 1 2 2 2 2 2 2 2 2 2 2 2 2 1 1 2 2 3 3 2 Clouds B1 B1 B1 B1 B2 B1 SC SC SC B2 SC SC SC B1 B1 B1 B1 B2 B1 SC SC B1 Clouds (%) 51 67 64 64 70 63 49 35 49 71 37 29 46 52 61 61 67 75 64 49 49 61 Vsby 6 6 10 10 10 10 10 10 10 10 10 10 PoP 12hr 30 10 20 10 20 QPF 12hr 0.12 0 0.02 0 0 Rain shwrs S S S S S S S Tstms S S S S S S S Obvis PF PF ChanceThunder 30 10 20 10 20 Max Mix Hgt AGL Mix Hgt 4700 5000 5100 Max Vent Rt 18700 19700 29000 T Wind Dir SE NE S T Wind Spd 4 5 6 ADI 16 20 31 Max LVORI 8 8 6 Stability F B B G F A B F F A B Ceiling NONE NONE NONE NONE NONE NONE 23500 NONE NONE 20800 NONE Sta Pres 27.99 27.99 27.99 28.01 28.04 28.01 27.99 27.99 27.99 27.95 27.89 Date Wed 09/03/25 Thu 09/04/25 Fri 09/05/25 Sat 09/06/25 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 57 77 58 80 54 78 51 81 Temp 61 58 74 67 61 59 77 67 59 55 75 66 56 52 78 67 Dewpt 57 56 59 60 59 58 62 62 59 55 53 54 51 50 53 54 PWind Dir SE S SE SW NW NW N NW Wind Char LT LT LT LT LT LT LT LT Avg Clouds B1 B1 B1 B1 SC B1 B1 SC SC SC FW FW FW FW FW FW PoP 12hr 30 50 30 40 30 10 5 5 Rain shwrs S C C C C S C C Tstms S S C C 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 $$