Point Forecast Matrices
Issued by NWS Knoxville/Tri Cities, TN
Issued by NWS Knoxville/Tri Cities, TN
195 FOUS54 KMRX 200543 PFMMRX Point Forecast Matrices National Weather Service Morristown TN 143 AM EDT Wed Aug 20 2025 TNZ017-202000- Tri Cities Airport-Sullivan TN 36.50N 82.41W Elev. 1536 ft 143 AM EDT Wed Aug 20 2025 Date Wed 08/20/25 Thu 08/21/25 Fri 08/22/25 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 68 84 66 85 Temp 69 70 79 83 82 77 72 70 68 68 76 81 82 77 71 69 67 67 76 82 82 77 Dewpt 67 68 71 73 72 71 70 69 68 68 71 71 70 69 68 67 66 66 69 69 69 69 RH 93 93 77 72 72 82 93 97100100 85 72 67 76 90 93 97 97 79 65 65 76 Wind Dir SE SE SW NW NW NW NE N NE N N N N N NE NE E E E SE NE E Wind Spd 1 1 2 4 4 2 2 1 1 2 3 5 5 4 2 2 2 2 2 3 3 2 Clouds B1 B1 SC SC B1 SC B1 SC B1 SC B1 SC SC SC FW SC SC SC SC SC SC SC PoP 12hr 70 30 30 10 30 QPF 12hr 0.03 0.05 0 0 0.03 Rain shwrs L C S C C C S S C C S Tstms L C S S C C C C Heat index 89 88 84 86 85 86 Max heat 90 91 85 88 86 88 Date Sat 08/23/25 Sun 08/24/25 Mon 08/25/25 Tue 08/26/25 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 82 65 82 61 78 54 76 Temp 69 68 78 75 67 66 77 74 64 62 74 70 59 56 72 68 Dewpt 67 66 70 69 66 66 69 66 62 60 58 54 52 51 53 53 PWind Dir E SW S SW SW W W W Wind Char LT LT LT LT LT LT LT LT Avg Clouds SC SC SC SC SC B1 B1 SC SC SC SC FW SC SC SC SC PoP 12hr 20 50 30 50 10 5 0 0 Rain shwrs S C C C C C C Tstms S C S S C $$ TNZ071-202000- Knoxville McGhee Tyson Airport-Blount TN 35.80N 83.98W Elev. 979 ft 143 AM EDT Wed Aug 20 2025 Date Wed 08/20/25 Thu 08/21/25 Fri 08/22/25 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 90 71 88 69 88 Temp 73 73 82 88 85 80 75 74 72 72 79 84 85 81 76 72 70 70 80 86 85 81 Dewpt 71 71 73 74 73 73 73 72 70 70 72 73 71 69 69 69 68 68 71 72 71 71 RH 93 93 74 63 67 79 94 93 93 93 79 70 63 67 79 90 93 93 74 63 63 72 Wind Dir SW S SW NW NW NW N N NE NE NE N N N NE NE NE NE NE W SW SE Wind Spd 2 2 3 3 5 4 2 2 2 3 5 5 6 5 4 3 2 2 2 2 4 3 Clouds FW SC SC SC B1 B1 B1 B1 B1 B1 SC SC SC SC SC FW SC SC SC SC SC SC PoP 12hr 60 20 20 5 30 QPF 12hr 0.08 0.18 0 0 0.03 Rain shwrs C C S S S C C Tstms C C S S S C C Heat index 87 97 92 84 90 90 84 83 92 90 85 Max heat 97 98 90 92 92 92 Date Sat 08/23/25 Sun 08/24/25 Mon 08/25/25 Tue 08/26/25 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 70 87 69 86 64 82 58 78 Temp 73 71 83 79 72 70 83 78 68 65 79 73 63 59 76 71 Dewpt 70 69 73 70 69 68 70 67 64 61 59 56 56 54 56 55 PWind Dir SE SW S W NW NW N N Wind Char LT LT LT LT LT LT LT LT Avg Clouds SC SC SC SC SC SC SC SC FW FW FW FW SC SC SC SC PoP 12hr 10 40 30 30 10 5 0 5 Rain shwrs S C C S S C Tstms S C C S C $$ TNZ036-202000- Oak Ridge-Anderson TN 36.00N 84.24W Elev. 913 ft 143 AM EDT Wed Aug 20 2025 Date Wed 08/20/25 Thu 08/21/25 Fri 08/22/25 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 89 70 87 68 88 Temp 73 73 81 86 84 79 74 73 71 70 79 85 85 80 74 72 70 70 80 86 86 80 Dewpt 71 71 74 76 74 73 72 71 70 69 72 72 71 69 69 68 67 67 71 72 72 71 RH 93 93 79 72 72 82 93 93 97 97 79 65 63 69 84 87 90 90 74 63 63 74 Wind Dir W SW SW W NW NE N N NE NE NE N N N N N NE NE NE S W SE Wind Spd 2 2 2 2 3 2 2 2 2 2 3 3 4 3 3 2 2 2 2 2 2 2 Clouds SC B1 SC B1 B2 SC SC SC SC B1 B1 SC SC SC SC FW FW SC SC SC SC FW PoP 12hr 70 20 10 0 20 QPF 12hr 0.40 0.01 0 0 0 Rain shwrs L C S S S Tstms L C S S S Heat index 86 96 91 91 90 83 83 92 92 83 Max heat 96 94 91 92 92 94 Date Sat 08/23/25 Sun 08/24/25 Mon 08/25/25 Tue 08/26/25 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 86 68 86 62 81 57 78 Temp 72 71 83 78 71 69 84 77 67 63 79 72 62 59 76 70 Dewpt 70 69 73 71 69 68 70 66 62 59 58 55 54 54 55 55 PWind Dir W SW SW W NW NW N N Wind Char LT LT LT LT LT LT LT LT Avg Clouds SC SC SC SC SC SC SC SC FW FW FW FW SC SC SC SC PoP 12hr 10 40 20 30 5 5 5 5 Rain shwrs S C S S S C Tstms S C S S C $$ TNZ099-202000- Chattanooga Airport-Hamilton TN 35.03N 85.22W Elev. 688 ft 143 AM EDT Wed Aug 20 2025 Date Wed 08/20/25 Thu 08/21/25 Fri 08/22/25 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 93 71 90 70 89 Temp 73 73 83 90 85 80 76 74 73 73 81 86 87 81 76 73 71 71 80 86 86 81 Dewpt 72 72 74 75 74 74 73 72 72 71 73 73 72 72 71 70 69 69 72 73 72 72 RH 97 97 74 62 70 82 90 93 97 93 77 65 61 74 85 90 93 93 77 65 63 74 Wind Dir S S S NW N NW N N N N N N N N N N N NE E SE E E Wind Spd 1 1 2 2 4 3 2 2 2 3 4 5 5 5 4 2 2 2 2 2 4 3 Clouds FW SC FW SC B1 B1 B1 SC SC B1 SC SC SC SC FW FW FW SC SC SC SC SC PoP 12hr 60 20 20 5 30 QPF 12hr 0.06 0.01 0 0 0.05 Rain shwrs C C S S S C C Tstms C C S S S C C Heat index 90101 93 85 86 93 94 85 84 93 92 85 Max heat 101 99 93 94 93 94 Date Sat 08/23/25 Sun 08/24/25 Mon 08/25/25 Tue 08/26/25 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 70 87 70 88 66 84 60 81 Temp 73 71 83 79 72 71 85 80 70 67 80 75 65 61 77 72 Dewpt 71 71 73 72 71 70 70 68 65 61 60 58 56 55 56 57 PWind Dir SE S S W N NW N N Wind Char LT LT LT LT LT LT LT LT Avg Clouds SC SC SC SC SC SC SC SC FW FW FW FW FW SC SC SC PoP 12hr 10 40 20 30 5 5 0 5 Rain shwrs S C S S S C Tstms S C S S C $$ NCZ060-202000- Tusquitee RAWS-Forestry-Cherokee NC 35.07N 84.12W Elev. 1600 ft 143 AM EDT Wed Aug 20 2025 Date Wed 08/20/25 Thu 08/21/25 Fri 08/22/25 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 89 66 87 65 85 Temp 67 67 78 85 83 75 70 69 67 67 77 84 83 76 70 68 66 66 77 82 80 74 Dewpt 67 67 72 73 72 71 70 68 67 67 72 71 70 69 68 67 66 66 71 71 70 70 RH 100100 82 67 70 87100 97100100 85 65 65 79 93 97100100 82 69 72 87 Min/Max RH 65 100 63 100 69 Wind Dir N N S NW NW NW NW N N N NW NW NW N NE N E E SE S SE SE Wind Dir Deg 0 0 18 31 31 30 31 0 0 0 32 31 32 34 3 0 8 10 14 17 15 14 Wind Spd 0 0 1 3 3 2 1 0 0 0 1 4 4 2 1 0 1 1 2 2 3 2 Clouds B1 B1 SC SC SC SC SC SC B2 B2 SC SC SC SC SC SC B1 B2 B1 B1 B1 B1 Clouds (%) 55 64 32 28 46 43 36 48 78 86 46 41 36 42 30 39 53 71 52 62 59 59 Vsby 7 7 10 10 6 10 9 7 7 7 10 10 PoP 12hr 70 20 40 20 50 QPF 12hr 0.06 0.01 0.05 0 0.18 Rain shwrs L L S C C S S S S C C S Tstms L L S C C S S C C S Heat index 92 88 89 87 86 83 Max heat 92 93 89 90 86 86 ChanceThunder 60 20 40 20 50 Max Mix Hgt AGL Mix Hgt 4400 4300 4000 Max Vent Rt 23500 30700 25600 T Wind Dir NW N SE T Wind Spd 4 5 6 ADI 24 31 24 Max LVORI 10 10 9 Stability F A A F F B B F D B B Ceiling NONE NONE NONE NONE NONE NONE NONE NONE NONE NONE NONE Sta Pres 27.89 27.82 27.77 27.77 27.79 27.77 27.76 27.81 27.86 27.89 27.87 Date Sat 08/23/25 Sun 08/24/25 Mon 08/25/25 Tue 08/26/25 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 65 84 65 84 60 82 54 79 Temp 67 66 80 73 67 66 82 73 64 61 78 69 59 55 76 67 Dewpt 67 66 70 69 66 65 68 66 63 61 59 57 54 52 54 55 PWind Dir SE S SE W NW NW N NW Wind Char LT LT LT LT LT LT LT LT Avg Clouds SC B1 B1 SC SC B1 B1 SC FW SC SC FW SC SC SC SC PoP 12hr 20 60 30 50 10 5 0 5 Rain shwrs S C L C S C C Tstms 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 $$