Point Forecast Matrices
Issued by NWS Knoxville/Tri Cities, TN
Issued by NWS Knoxville/Tri Cities, TN
137 FOUS54 KMRX 060538 PFMMRX Point Forecast Matrices National Weather Service Morristown TN 138 AM EDT Wed Aug 6 2025 TNZ017-062000- Tri Cities Airport-Sullivan TN 36.50N 82.41W Elev. 1536 ft 138 AM EDT Wed Aug 6 2025 Date Wed 08/06/25 Thu 08/07/25 Fri 08/08/25 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 82 62 83 62 83 Temp 65 65 73 79 80 75 69 65 63 65 75 80 82 77 69 66 64 65 75 81 82 77 Dewpt 61 62 65 67 67 65 64 62 61 61 65 66 65 65 63 62 62 62 65 65 64 64 RH 87 90 76 67 65 71 84 90 93 87 71 62 56 67 81 87 93 90 71 58 55 64 Wind Dir NE E SE E E E E E NE E E E E E E E E E E E E E Wind Spd 2 2 2 3 4 4 3 2 2 2 2 3 5 4 4 2 2 2 3 4 5 5 Clouds B2 B1 B1 SC SC SC SC FW SC FW FW SC SC SC SC FW SC SC SC SC FW FW PoP 12hr 30 10 20 10 20 QPF 12hr 0 0 0 0 0 Rain shwrs S C S S S S Tstms S S S S S S Heat index 83 Max heat 83 84 83 85 83 84 Date Sat 08/09/25 Sun 08/10/25 Mon 08/11/25 Tue 08/12/25 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 84 63 85 66 87 67 88 Temp 66 65 82 78 67 66 83 79 69 68 84 80 70 70 84 80 Dewpt 62 62 65 65 63 63 67 66 65 65 69 68 67 68 70 69 PWind Dir E E E SE SE S SE SW Wind Char LT LT LT LT LT LT LT LT Avg Clouds FW FW SC SC SC SC SC SC SC SC SC SC SC SC SC SC PoP 12hr 5 20 5 30 10 40 20 40 Rain shwrs S C S C S S C Tstms S C C S C $$ TNZ071-062000- Knoxville McGhee Tyson Airport-Blount TN 35.80N 83.98W Elev. 979 ft 138 AM EDT Wed Aug 6 2025 Date Wed 08/06/25 Thu 08/07/25 Fri 08/08/25 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 86 69 86 69 86 Temp 70 70 76 83 85 80 74 71 70 70 77 84 85 80 74 72 70 70 78 84 85 80 Dewpt 69 69 70 71 70 70 69 68 67 67 70 70 69 68 69 68 67 68 70 69 68 67 RH 97 97 82 67 61 72 84 90 90 90 79 63 59 67 84 87 90 93 76 61 57 65 Wind Dir SW SW SW N NE N W SW N E N N NE E S S SE E NE NE NE E Wind Spd 1 1 2 2 3 2 2 1 1 1 2 2 3 3 2 2 1 1 2 2 3 3 Clouds B1 B2 B1 SC SC SC B1 SC B1 B2 B1 SC SC SC B1 B1 SC B1 SC SC SC SC PoP 12hr 20 10 30 10 30 QPF 12hr 0.05 0 0.10 0 0 Rain shwrs S C C C C Tstms S S S C C Heat index 88 90 83 88 89 83 88 88 Max heat 88 90 88 90 88 89 Date Sat 08/09/25 Sun 08/10/25 Mon 08/11/25 Tue 08/12/25 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 68 88 69 88 70 89 72 89 Temp 71 69 86 81 72 70 86 81 73 72 86 82 75 73 87 83 Dewpt 68 66 68 67 67 67 69 68 68 69 70 71 71 70 73 71 PWind Dir SE E SE NE S E S SW Wind Char LT LT LT LT LT LT LT LT Avg Clouds SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC PoP 12hr 5 20 5 30 10 40 10 40 Rain shwrs S C S C S C Tstms S C C C $$ TNZ036-062000- Oak Ridge-Anderson TN 36.00N 84.24W Elev. 913 ft 138 AM EDT Wed Aug 6 2025 Date Wed 08/06/25 Thu 08/07/25 Fri 08/08/25 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 68 86 68 86 Temp 70 70 78 84 84 79 72 70 68 70 78 84 85 80 74 71 69 70 79 84 85 80 Dewpt 69 70 71 72 70 70 69 68 67 67 71 71 70 69 69 68 67 68 70 70 69 68 RH 97100 79 67 63 74 90 93 97 90 79 65 61 69 84 90 93 93 74 63 59 67 Wind Dir W SW S E N E NE NW E NE E E NE E NE SW SW E S E E E Wind Spd 1 1 1 2 2 2 1 1 1 1 1 2 2 2 1 1 1 1 1 2 2 2 Clouds B1 B1 B1 SC SC SC SC SC B1 B1 B1 SC SC SC SC SC SC B1 SC SC FW FW PoP 12hr 20 10 30 5 30 QPF 12hr 0 0 0.04 0 0.01 Rain shwrs S S C C C C Tstms S S S S C C Heat index 90 88 89 90 83 88 89 83 Max heat 90 90 89 90 88 90 Date Sat 08/09/25 Sun 08/10/25 Mon 08/11/25 Tue 08/12/25 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 67 89 68 88 69 89 71 89 Temp 71 69 87 81 72 70 87 81 72 71 87 82 74 73 87 82 Dewpt 68 67 69 69 67 67 69 68 69 69 72 71 70 70 73 72 PWind Dir S E W E SW S SW SW Wind Char LT LT LT LT LT LT LT LT Avg Clouds SC FW FW SC SC SC SC SC SC SC SC SC SC SC SC SC PoP 12hr 5 20 5 20 10 40 10 40 Rain shwrs S S S C S C Tstms S S S C S C $$ TNZ099-062000- Chattanooga Airport-Hamilton TN 35.03N 85.22W Elev. 688 ft 138 AM EDT Wed Aug 6 2025 Date Wed 08/06/25 Thu 08/07/25 Fri 08/08/25 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 87 69 87 69 87 Temp 68 69 77 84 86 80 75 72 70 70 79 85 85 80 74 72 70 70 79 84 86 80 Dewpt 68 68 69 71 71 71 70 70 69 68 71 71 71 71 71 69 68 68 70 70 70 70 RH 100 97 76 65 61 74 84 93 97 93 77 63 63 74 90 90 93 93 74 63 59 72 Wind Dir SW SW S SE SE S SE S S SW S E E SE SE S S S SE E E E Wind Spd 1 1 1 2 2 2 1 2 1 1 2 2 3 2 2 2 1 1 2 3 3 2 Clouds B1 B1 SC FW SC SC SC SC SC SC SC FW FW SC SC SC SC SC SC FW FW SC PoP 12hr 20 10 40 5 40 QPF 12hr 0 0 0.08 0 0.05 Rain shwrs S C C C C Tstms S S S C C Heat index 89 91 83 90 90 83 88 91 83 Max heat 89 92 90 91 88 91 Date Sat 08/09/25 Sun 08/10/25 Mon 08/11/25 Tue 08/12/25 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 69 87 69 88 71 89 72 89 Temp 71 70 85 80 72 71 86 81 73 72 85 81 74 73 86 82 Dewpt 69 68 70 70 69 68 71 71 71 70 73 72 72 72 74 73 PWind Dir SE SE SE SE SE SE S S Wind Char LT LT LT LT LT LT LT LT Avg Clouds SC FW SC SC SC SC SC SC SC SC SC SC SC SC SC SC PoP 12hr 5 30 5 40 10 50 10 50 Rain shwrs C C S C S C Tstms C C S C S C $$ NCZ060-062000- Tusquitee RAWS-Forestry-Cherokee NC 35.07N 84.12W Elev. 1600 ft 138 AM EDT Wed Aug 6 2025 Date Wed 08/06/25 Thu 08/07/25 Fri 08/08/25 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 63 83 62 82 Temp 63 64 74 81 80 73 68 66 64 64 74 81 80 73 67 65 63 63 75 81 79 74 Dewpt 63 64 68 68 68 69 67 65 64 63 68 68 68 68 67 65 63 63 68 67 67 68 RH 100100 82 65 67 87 97 97100 97 82 65 67 84100100100100 79 63 67 82 Min/Max RH 65 100 63 100 62 Wind Dir N N NW NW W E SE E N N E SW E E SE SE SE E E E SE SE Wind Dir Deg 0 0 29 30 28 10 12 11 0 0 7 22 9 11 13 12 12 10 11 9 14 14 Wind Spd 0 0 1 2 2 2 1 1 0 0 1 2 2 1 1 1 1 1 2 3 3 2 Clouds B1 SC SC SC SC B1 B2 SC B1 SC SC SC SC B1 B1 SC SC SC SC SC SC SC Clouds (%) 58 44 28 41 50 57 73 46 52 47 38 41 45 54 54 43 48 33 35 30 42 44 Vsby 7 7 10 10 10 10 8 7 7 7 10 10 PoP 12hr 40 20 50 10 50 QPF 12hr 0.48 0.25 0.20 0 0.14 Rain shwrs C S C C S S C C Tstms S S S S S C C Heat index 84 83 84 83 Max heat 84 85 84 85 83 83 ChanceThunder 20 20 20 10 40 Max Mix Hgt AGL Mix Hgt 4100 3900 4400 Max Vent Rt 20400 8600 17000 T Wind Dir N E SE T Wind Spd 4 2 4 ADI 20 10 18 Max LVORI 10 8 10 Stability F B B F F A B G G B A Ceiling NONE NONE NONE NONE NONE NONE NONE NONE NONE NONE NONE Sta Pres 28.15 28.15 28.12 28.13 28.12 28.10 28.05 28.04 28.05 28.00 27.99 Date Sat 08/09/25 Sun 08/10/25 Mon 08/11/25 Tue 08/12/25 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 83 63 84 65 86 66 87 Temp 65 64 82 75 66 65 83 75 67 66 82 76 68 67 82 77 Dewpt 64 63 66 67 65 63 68 68 67 66 70 70 68 67 71 70 PWind Dir SE E E SE SE SE SE S Wind Char LT LT LT LT LT LT LT LT Avg Clouds SC SC SC SC SC B1 SC B1 B1 B1 SC B1 SC B1 B1 B1 PoP 12hr 10 30 10 50 20 60 20 60 Rain shwrs C C S C L S S L Tstms C C S S C S S C This is an experimental product for planning and review purposes only, and is not to be substituted for an official fire weather spot forecast $$