Point Forecast Matrices
Issued by NWS Knoxville/Tri Cities, TN
Issued by NWS Knoxville/Tri Cities, TN
575 FOUS54 KMRX 220539 PFMMRX Point Forecast Matrices National Weather Service Morristown TN 138 AM EDT Fri Aug 22 2025 TNZ017-222000- Tri Cities Airport-Sullivan TN 36.50N 82.41W Elev. 1536 ft 138 AM EDT Fri Aug 22 2025 Date Fri 08/22/25 Sat 08/23/25 Sun 08/24/25 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 66 84 66 79 Temp 66 67 78 82 84 78 71 68 67 67 76 80 80 75 70 68 67 67 71 74 77 73 Dewpt 65 65 69 70 69 68 66 66 65 65 68 69 69 68 68 66 66 67 69 70 69 68 RH 97 93 74 67 61 71 84 93 93 93 76 69 69 79 93 93 97100 93 87 76 84 Wind Dir NE E E SE SE SE SE E E E S SW S S SE S S S SW W W W Wind Spd 2 2 2 2 3 3 2 2 2 2 2 4 5 3 2 1 1 2 3 4 5 3 Clouds FW FW FW SC SC SC SC SC B1 SC SC SC B1 B1 B1 B1 B2 B2 B2 B2 B1 SC PoP 12hr 30 10 60 60 70 QPF 12hr 0 0 0.24 0.22 0.48 Rain shwrs C S S S L L L L L L L L L L Tstms C S S C C C S S S C C C Heat index 86 88 83 83 Max heat 88 89 85 85 Date Mon 08/25/25 Tue 08/26/25 Wed 08/27/25 Thu 08/28/25 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 61 78 55 76 51 76 52 78 Temp 65 62 74 70 59 57 72 67 56 53 72 68 55 54 74 69 Dewpt 64 60 57 55 53 52 53 52 50 49 51 51 49 49 54 54 PWind Dir W NW W NW N N NE SW Wind Char LT LT LT LT LT LT LT LT Avg Clouds SC B1 SC FW SC SC SC SC SC SC FW FW FW SC SC SC PoP 12hr 10 0 0 0 5 5 5 10 $$ TNZ071-222000- Knoxville McGhee Tyson Airport-Blount TN 35.80N 83.98W Elev. 979 ft 138 AM EDT Fri Aug 22 2025 Date Fri 08/22/25 Sat 08/23/25 Sun 08/24/25 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 88 70 86 70 83 Temp 70 70 80 87 86 80 74 73 71 71 79 84 81 77 74 71 71 70 75 79 82 77 Dewpt 68 68 71 72 72 71 70 69 69 69 71 72 72 71 71 70 70 69 71 72 71 69 RH 93 93 74 61 63 74 87 87 93 93 77 67 74 82 90 97 97 97 87 79 69 76 Wind Dir NE NE N N NW S W W W E E SW S SW SW S SW S W W NW NW Wind Spd 2 2 2 2 3 3 2 2 2 1 2 2 3 3 2 2 2 2 2 3 4 2 Clouds FW SC FW SC SC B1 SC SC SC SC SC B1 B1 B1 B2 B1 B2 B2 B2 B1 SC SC PoP 12hr 40 20 70 60 50 QPF 12hr 0.02 0.02 0.35 0.15 0.40 Rain shwrs C C S C C L L L L C C C C C C Tstms C C S C L L C S S S S C C C Heat index 83 94 92 83 90 85 86 Max heat 94 94 90 90 87 Date Mon 08/25/25 Tue 08/26/25 Wed 08/27/25 Thu 08/28/25 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 62 82 60 78 57 79 56 81 Temp 68 62 79 74 64 61 76 71 61 58 76 71 60 57 79 73 Dewpt 65 60 58 57 56 55 55 54 53 53 54 53 53 53 57 57 PWind Dir NW N N N NE NE NE NW Wind Char LT LT LT LT LT LT LT LT Avg Clouds SC FW FW FW SC SC SC SC SC SC FW FW FW SC SC SC PoP 12hr 5 0 0 0 5 5 5 10 $$ TNZ036-222000- Oak Ridge-Anderson TN 36.00N 84.24W Elev. 913 ft 138 AM EDT Fri Aug 22 2025 Date Fri 08/22/25 Sat 08/23/25 Sun 08/24/25 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 69 85 69 83 Temp 69 70 80 87 86 80 74 72 70 71 78 83 82 76 71 71 70 70 76 80 82 76 Dewpt 67 67 71 72 72 71 71 70 69 69 72 72 73 71 71 70 69 69 72 72 71 68 RH 93 90 74 61 63 74 90 93 97 93 82 70 74 85100 97 97 97 87 77 69 76 Wind Dir NE NE E E NW S SW SW SW W S SW SW S W W W W W NW NW NW Wind Spd 2 2 2 2 2 2 1 1 1 1 1 2 2 2 1 1 1 2 2 2 2 2 Clouds FW FW SC SC SC SC SC B1 SC B1 SC SC B1 B1 B1 B1 B2 OV B2 B1 SC FW PoP 12hr 40 20 80 60 50 QPF 12hr 0 0.02 0.25 0.22 0.20 Rain shwrs C C S C C D D L L C C C C C C Tstms C C S C L L C C S C S C C C Heat index 83 94 92 83 88 87 84 86 Max heat 94 94 88 89 84 87 Date Mon 08/25/25 Tue 08/26/25 Wed 08/27/25 Thu 08/28/25 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 81 58 78 55 78 55 80 Temp 66 62 79 72 62 60 76 70 60 57 76 70 60 57 78 71 Dewpt 62 58 58 57 54 54 55 54 52 51 54 53 51 51 57 57 PWind Dir N NW N N N NE N S Wind Char LT LT LT LT LT LT LT LT Avg Clouds FW FW FW FW SC B1 SC SC SC SC FW FW FW SC SC SC PoP 12hr 5 0 0 0 5 5 5 10 $$ TNZ099-222000- Chattanooga Airport-Hamilton TN 35.03N 85.22W Elev. 688 ft 138 AM EDT Fri Aug 22 2025 Date Fri 08/22/25 Sat 08/23/25 Sun 08/24/25 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 87 70 85 70 86 Temp 71 71 79 83 83 78 74 73 71 71 78 81 80 77 72 71 71 70 77 82 83 78 Dewpt 70 70 73 74 73 73 72 71 70 71 72 73 73 72 71 71 70 70 73 72 72 70 RH 97 97 82 74 72 85 93 93 97100 82 77 79 85 97100 97100 87 72 70 76 Wind Dir N NE E SE E E S S E SE SE S S SE SE S SW S NW NW N N Wind Spd 2 2 2 3 4 3 2 2 1 1 2 4 4 2 2 1 1 1 2 3 4 3 Clouds SC SC SC B1 B1 SC B1 SC SC B2 B1 B1 B1 B1 B1 B1 B1 B2 B1 SC SC FW PoP 12hr 60 30 80 40 50 QPF 12hr 0.03 0.02 0.22 0.32 0.21 Rain shwrs L L C S C C D D C C S S C C C C Tstms L L C S L L C S S C C C Heat index 90 89 86 84 87 88 Max heat 90 91 86 86 87 88 Date Mon 08/25/25 Tue 08/26/25 Wed 08/27/25 Thu 08/28/25 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 63 83 62 80 59 79 58 82 Temp 68 63 80 74 65 63 77 72 63 60 77 72 61 59 78 73 Dewpt 64 59 59 59 56 56 57 56 55 54 56 56 54 54 59 59 PWind Dir N N N N N N N SE Wind Char LT LT LT LT LT LT LT LT Avg Clouds FW FW FW FW SC SC SC SC SC SC FW FW FW SC SC SC PoP 12hr 0 0 0 5 5 10 5 10 $$ NCZ060-222000- Tusquitee RAWS-Forestry-Cherokee NC 35.07N 84.12W Elev. 1600 ft 138 AM EDT Fri Aug 22 2025 Date Fri 08/22/25 Sat 08/23/25 Sun 08/24/25 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 65 81 65 82 Temp 66 66 75 81 78 73 69 67 66 66 75 78 76 72 68 67 66 66 73 78 77 72 Dewpt 66 66 71 71 71 70 69 67 66 66 70 70 70 69 68 67 66 66 70 70 69 68 RH 100100 87 72 79 90100100100100 84 76 82 90100100100100 90 76 76 87 Min/Max RH 72 100 76 100 74 Wind Dir E SE SE S SE SE E E E E SE SE SE E SE SE N N W NW NW NW Wind Dir Deg 11 12 13 16 12 13 11 10 11 11 13 15 12 11 13 12 0 0 26 30 31 31 Wind Spd 1 1 2 3 3 2 2 2 1 2 2 4 4 2 1 1 0 0 2 3 3 2 Clouds B1 B1 B1 B1 B1 B1 SC B1 SC B1 B1 B1 B1 B1 B1 B2 OV OV B1 B1 SC SC Clouds (%) 58 68 60 60 57 56 44 59 50 56 60 62 66 65 69 81 88 94 61 66 50 30 Vsby 7 7 10 10 6 10 7 7 7 7 10 6 6 10 10 10 7 7 10 6 PoP 12hr 70 30 80 50 70 QPF 12hr 0.22 0.02 0.26 0.13 0.42 Rain shwrs S C L C C C D D C C C C C C L L Tstms S C L S C L L C C C C Heat index 85 Max heat 85 83 ChanceThunder 60 20 60 30 50 Max Mix Hgt AGL Mix Hgt 3700 2800 3300 Max Vent Rt 22100 19800 17300 T Wind Dir SE SE NW T Wind Spd 5 6 4 ADI 22 19 18 Max LVORI 10 9 10 Stability F B B F F B B D D B A Ceiling NONE NONE NONE NONE NONE NONE NONE NONE NONE NONE NONE Sta Pres 27.87 27.89 27.88 27.90 27.92 27.89 27.87 27.89 27.89 27.87 27.84 Date Mon 08/25/25 Tue 08/26/25 Wed 08/27/25 Thu 08/28/25 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 59 81 55 78 53 78 53 80 Temp 64 60 79 69 59 57 75 66 57 54 75 66 56 55 76 67 Dewpt 64 59 58 57 54 53 54 54 52 51 53 54 52 51 56 57 PWind Dir NW NW N NW N NW NE S Wind Char LT LT LT LT LT LT LT LT Avg Clouds SC SC FW FW SC B1 B1 SC B1 SC SC FW FW SC SC SC PoP 12hr 5 0 0 5 5 10 5 10 This is an experimental product for planning and review purposes only, and is not to be substituted for an official fire weather spot forecast $$