Point Forecast Matrices
Issued by NWS Knoxville/Tri Cities, TN
Issued by NWS Knoxville/Tri Cities, TN
107 FOUS54 KMRX 311732 PFMMRX Point Forecast Matrices National Weather Service Morristown TN 132 PM EDT Sun Aug 31 2025 TNZ017-010800- Tri Cities Airport-Sullivan TN 36.50N 82.41W Elev. 1536 ft 132 PM EDT Sun Aug 31 2025 Date 08/31/25 Mon 09/01/25 Tue 09/02/25 Wed 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 79 54 75 57 Temp 76 69 62 59 57 56 69 75 77 69 62 58 55 55 67 73 74 67 61 59 58 58 Dewpt 58 59 60 57 55 53 55 56 54 55 53 52 50 51 55 56 56 57 56 56 55 56 RH 54 70 93 93 93 90 61 52 45 61 72 80 83 86 65 55 53 70 84 90 90 93 Wind Dir E E E E E NE E NE E E E E E E S W W SW S E SE E Wind Spd 3 4 3 3 2 3 3 3 4 3 3 2 2 2 2 3 3 2 2 2 2 2 Clouds SC SC FW SC SC SC SC SC SC SC SC SC SC B2 B1 SC B1 B1 B1 B1 B2 B2 PoP 12hr 10 5 0 20 40 QPF 12hr 0 0 0 0.03 0.04 Rain shwrs C S S S S C C C Tstms C S S Date 09/03 Thu 09/04/25 Fri 09/05/25 Sat 09/06/25 Sun 09/07/25 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 73 58 77 57 76 54 77 52 78 Temp 70 66 61 60 74 67 61 58 73 68 58 56 73 68 56 53 74 67 Dewpt 61 62 59 59 65 64 61 58 57 57 55 55 58 57 53 51 53 53 PWind Dir S SE SW SW SW SW W N N Wind Char LT LT LT LT LT LT LT LT LT Avg Clouds B2 B1 B1 SC SC SC B1 B1 SC FW FW SC SC FW FW FW FW FW PoP 12hr 60 30 60 40 10 10 10 5 5 Rain shwrs C L C S L C S Tstms C S C S $$ TNZ071-010800- Knoxville McGhee Tyson Airport-Blount TN 35.80N 83.98W Elev. 979 ft 132 PM EDT Sun Aug 31 2025 Date 08/31/25 Mon 09/01/25 Tue 09/02/25 Wed EDT 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 61 80 61 77 62 Temp 82 75 68 65 63 62 72 78 79 72 67 65 63 62 70 75 76 70 66 64 63 63 Dewpt 57 58 62 61 60 60 63 63 62 61 61 60 59 59 61 61 60 61 61 61 60 61 RH 43 55 81 87 90 93 73 60 56 68 81 84 87 90 73 62 58 73 84 90 90 93 Wind Dir N N E N NE NE N N N NE SE S SE E N W W NE E SE E SE Wind Spd 3 4 3 2 2 2 2 2 4 3 2 2 2 2 2 3 4 2 2 2 2 2 Clouds SC SC SC FW B1 B1 B1 SC SC SC SC SC B1 B1 B1 B1 B1 B1 B1 B2 B2 B2 PoP 12hr 5 10 10 30 50 QPF 12hr 0 0 0 0.04 0.06 Rain shwrs S S S C C C C C C C Tstms S S S S S S S Date 09/03 Thu 09/04/25 Fri 09/05/25 Sat 09/06/25 Sun 09/07/25 EDT 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 77 63 81 59 81 59 81 56 81 Temp 75 71 65 63 78 72 64 60 78 72 63 60 78 72 61 57 78 71 Dewpt 64 65 63 63 67 65 63 60 59 59 59 57 60 60 56 53 55 55 PWind Dir S S SW SW SW SW W N NE Wind Char LT LT GN LT LT LT LT LT LT Avg Clouds B2 B1 SC B1 SC SC SC SC FW FW FW SC SC FW SC FW FW FW PoP 12hr 60 30 40 40 10 10 10 5 5 Rain shwrs C L C S S C C S Tstms C S C S $$ TNZ036-010800- Oak Ridge-Anderson TN 36.00N 84.24W Elev. 913 ft 132 PM EDT Sun Aug 31 2025 Date 08/31/25 Mon 09/01/25 Tue 09/02/25 Wed 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 60 76 61 Temp 83 74 68 64 62 61 73 78 79 72 66 62 61 61 70 74 74 69 64 63 62 62 Dewpt 57 58 60 60 60 60 63 63 62 61 61 60 60 59 62 61 61 61 61 61 60 61 RH 41 57 76 87 93 97 71 60 56 68 84 93 97 93 76 64 64 76 90 93 93 97 Wind Dir NE NE NE NE NE NE E S E NE NE SE N NE S SW SW S N NE E E Wind Spd 2 2 2 2 1 2 1 2 2 2 1 1 1 1 2 2 2 2 1 1 1 2 Clouds B1 SC SC FW B1 B1 B1 B1 SC SC SC SC B1 B2 B1 B1 B1 B1 B2 B2 OV B2 PoP 12hr 5 20 10 40 50 QPF 12hr 0 0 0 0.08 0.11 Rain shwrs S C C C C C C C C L Tstms S S S S S S S Date 09/03 Thu 09/04/25 Fri 09/05/25 Sat 09/06/25 Sun 09/07/25 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 76 61 80 57 80 56 81 55 80 Temp 74 70 64 63 78 70 62 58 78 72 61 58 78 70 60 56 77 70 Dewpt 65 64 63 62 67 64 61 58 58 58 57 57 58 59 54 52 55 55 PWind Dir S SW SW W SW W W N NE Wind Char LT LT LT LT LT LT LT LT LT Avg Clouds B2 B1 SC B1 B1 SC SC SC SC FW FW SC SC FW FW FW FW FW PoP 12hr 60 30 50 30 10 10 10 5 5 Rain shwrs L L C S S C C S Tstms C S C S $$ TNZ099-010800- Chattanooga Airport-Hamilton TN 35.03N 85.22W Elev. 688 ft 132 PM EDT Sun Aug 31 2025 Date 08/31/25 Mon 09/01/25 Tue 09/02/25 Wed EDT 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 65 82 64 79 63 Temp 83 76 70 68 66 66 74 79 80 74 69 66 65 64 72 77 77 72 66 65 64 64 Dewpt 61 62 65 65 64 63 61 61 62 63 63 62 60 59 59 59 60 62 62 62 62 62 RH 47 62 84 90 93 90 64 54 54 69 81 87 84 84 64 54 56 71 87 90 93 93 Wind Dir N NE NE E NE S S S S SE SE SE S S S S E E NE E SE SE Wind Spd 3 3 2 2 2 2 3 4 4 2 2 2 2 2 3 4 4 3 2 2 2 2 Clouds SC FW B1 SC SC SC SC SC SC SC SC SC B1 B1 B1 B1 B1 B1 B1 B1 B2 B1 PoP 12hr 10 20 20 30 40 QPF 12hr 0 0 0.01 0.05 0.14 Rain shwrs S S S S C C C C C C C C C Tstms S S C C C S C C S Date 09/03 Thu 09/04/25 Fri 09/05/25 Sat 09/06/25 Sun 09/07/25 EDT 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 79 64 83 61 83 60 82 58 83 Temp 76 72 66 65 80 74 65 62 81 74 64 61 79 73 63 59 79 72 Dewpt 65 66 65 64 67 65 63 60 58 59 60 59 59 60 57 54 56 56 PWind Dir S S SW SW SW SW NW N NE Wind Char LT LT LT LT LT LT LT LT LT Avg Clouds B1 B1 SC SC SC SC SC FW FW FW FW SC SC SC FW FW FW FW PoP 12hr 60 30 40 20 5 10 10 0 5 Rain shwrs C L C S S C S Tstms S C C S C S $$ NCZ060-010800- Tusquitee RAWS-Forestry-Cherokee NC 35.07N 84.12W Elev. 1600 ft 132 PM EDT Sun Aug 31 2025 Date 08/31/25 Mon 09/01/25 Tue 09/02/25 Wed 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 80 56 78 58 Temp 75 68 63 62 60 58 70 77 75 68 62 60 57 57 69 76 74 68 62 61 59 59 Dewpt 61 61 62 61 58 56 58 58 60 60 59 57 53 53 57 57 57 59 58 57 57 57 RH 62 78 97 97 93 93 66 52 60 76 90 90 86 86 66 52 55 73 87 87 93 93 Max/Min RH 97 52 90 52 96 Wind Dir NE SE E SE E SE SE N N E E SE E E SE SW SW SE SE SE SE SE Wind Dir Deg 5 12 9 12 11 12 13 34 2 11 11 12 11 11 14 22 23 13 12 13 12 12 Wind Spd 2 2 2 2 2 2 2 2 2 2 2 1 1 2 2 2 3 2 2 2 2 2 Clouds B1 SC B1 B1 B1 B1 SC FW SC B1 B1 SC B1 B2 SC SC B1 B1 B1 B1 B2 B2 Clouds (%) 56 46 61 63 54 62 42 22 45 66 52 50 56 72 48 43 56 54 66 69 77 84 Vsby 10 10 10 10 10 10 10 10 10 10 10 10 PoP 12hr 20 20 5 20 40 QPF 12hr 0 0.01 0 0 0.03 Rain shwrs C S S S S S C C C Tstms C S S S S C ChanceThunder 10 20 5 20 30 Max Mix Hgt AGL Mix Hgt 5400 4700 Max Vent Rt 19100 16600 T Wind Dir NE S T Wind Spd 4 4 ADI 19 15 Max LVORI 6 6 Stability A F F A B F F A B F D Ceiling NONE NONE NONE NONE NONE 23500 NONE NONE NONE NONE NONE Sta Pres 27.97 28.00 28.03 28.01 27.98 27.99 27.99 27.98 27.91 27.92 27.89 Date 09/03 Thu 09/04/25 Fri 09/05/25 Sat 09/06/25 Sun 09/07/25 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 76 58 80 57 80 54 82 52 82 Temp 73 67 61 59 76 68 60 58 78 68 58 55 78 68 57 53 79 67 Dewpt 60 61 60 59 64 63 60 58 55 56 56 54 56 58 55 51 55 55 PWind Dir S SE SW E SW SE NW N N Wind Char LT LT LT LT LT LT LT LT LT Avg Clouds B2 B1 B1 B1 SC SC SC SC SC FW FW SC SC SC FW SC SC FW PoP 12hr 60 40 50 30 10 10 10 5 5 Rain shwrs C L C S S C C Tstms S C C S 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 $$