Point Forecast Matrices
Issued by NWS Knoxville/Tri Cities, TN
Issued by NWS Knoxville/Tri Cities, TN
238 FOUS54 KMRX 170522 PFMMRX Point Forecast Matrices National Weather Service Morristown TN 122 AM EDT Tue Jun 17 2025 TNZ017-172000- Tri Cities Airport-Sullivan TN 36.50N 82.41W Elev. 1536 ft 122 AM EDT Tue Jun 17 2025 Date Tue 06/17/25 Wed 06/18/25 Thu 06/19/25 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 67 84 67 83 Temp 67 68 78 84 85 79 71 69 67 69 76 81 82 78 72 69 68 70 78 80 80 75 Dewpt 67 68 71 71 71 70 69 68 67 69 71 72 70 70 68 67 67 69 72 72 71 68 RH 100100 79 65 63 74 93 97100100 85 74 67 76 87 93 97 97 82 77 74 79 Wind Dir S SW SW SW SW SW SW S SW SW SW W SW SW S SW SW SW SW W W W Wind Spd 1 1 4 6 6 4 3 2 3 5 10 11 11 6 3 3 4 5 10 12 11 6 Clouds SC B2 SC SC B1 SC B1 SC B1 B2 SC B1 B1 B1 SC SC SC B1 SC B2 B2 B2 PoP 12hr 60 60 70 20 80 QPF 12hr 0.19 0.13 0.04 0.06 0.46 Rain shwrs C L C C S C C L L S S S S C C D D C Tstms C L C C C L C S S S L L C Heat index 89 89 85 86 83 83 Max heat 90 92 86 87 84 85 Date Fri 06/20/25 Sat 06/21/25 Sun 06/22/25 Mon 06/23/25 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 66 85 64 89 67 90 69 92 Temp 68 68 82 79 67 68 86 82 70 71 88 84 72 73 89 83 Dewpt 67 67 67 69 64 65 68 70 66 67 70 72 69 69 71 71 PWind Dir SW W SE SW S SW SE N Wind Char LT LT LT LT LT LT LT LT Avg Clouds B2 B2 SC FW FW FW FW FW FW FW FW FW FW FW FW SC PoP 12hr 30 10 5 10 5 20 10 30 Rain shwrs C S C Tstms C S C $$ TNZ071-172000- Knoxville McGhee Tyson Airport-Blount TN 35.80N 83.98W Elev. 979 ft 122 AM EDT Tue Jun 17 2025 Date Tue 06/17/25 Wed 06/18/25 Thu 06/19/25 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 86 70 85 71 85 Temp 71 72 79 84 84 79 74 72 70 72 78 82 83 79 75 73 72 73 79 83 82 76 Dewpt 69 70 72 73 72 70 70 70 69 70 73 74 73 72 70 70 70 71 74 75 73 71 RH 93 93 79 70 67 74 87 93 97 93 85 77 72 79 84 90 93 93 85 77 74 85 Wind Dir SW SW SW SW SW SW SW SW SW SW SW SW SW SW S SW SW SW SW SW W SW Wind Spd 3 4 8 10 11 9 8 6 8 10 11 11 11 8 6 5 6 9 11 11 9 5 Clouds B2 SC SC SC SC B2 B1 B1 B2 B1 B1 B1 B1 B1 SC SC SC B1 SC B1 B2 B1 PoP 12hr 60 70 70 30 90 QPF 12hr 0.15 0.22 0.10 0.06 0.40 Rain shwrs S S S C C L S C C C C L L S S C C C C D D C Tstms S S S C C C S S C S C L C S S S S C D D S Heat index 90 90 88 89 90 87 Max heat 90 93 88 90 90 90 Date Fri 06/20/25 Sat 06/21/25 Sun 06/22/25 Mon 06/23/25 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 69 88 68 91 71 93 73 92 Temp 71 71 85 81 71 71 88 84 74 75 91 86 76 75 90 83 Dewpt 69 69 71 70 67 67 72 72 70 70 74 74 71 72 75 73 PWind Dir SW W SE SW S SW SE NE Wind Char LT LT LT LT LT LT LT LT Avg Clouds B1 B2 SC FW FW FW FW FW FW FW FW FW FW FW FW SC PoP 12hr 30 20 5 20 5 20 10 30 Rain shwrs C S S S C Tstms S S S S C $$ TNZ036-172000- Oak Ridge-Anderson TN 36.00N 84.24W Elev. 913 ft 122 AM EDT Tue Jun 17 2025 Date Tue 06/17/25 Wed 06/18/25 Thu 06/19/25 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 84 69 84 70 84 Temp 70 71 78 82 82 76 72 71 71 70 77 82 82 77 74 72 71 72 79 82 80 75 Dewpt 69 70 73 74 73 71 70 70 69 70 74 75 74 72 72 71 70 72 74 75 74 71 RH 97 97 85 77 74 85 93 97 93100 90 79 77 85 93 97 97100 85 79 82 87 Wind Dir SW SW SW SW SW SW SW SW SW SW SW SW SW SW SW SW SW SW SW SW W SW Wind Spd 2 3 6 9 9 8 5 5 5 6 9 9 9 6 5 4 5 6 8 8 5 3 Wind Gust 18 17 16 17 18 16 17 Clouds B2 B1 B1 SC B1 B2 B2 B1 OV B2 B2 B1 B1 B2 SC SC B1 B2 B1 B2 B2 B2 PoP 12hr 70 70 70 40 90 QPF 12hr 0.30 0.15 0.12 0.05 0.41 Rain shwrs C S C C C L S C C C C L L C C L L D D S Tstms S C C C C S C C S C L C S S C L L S Heat index 88 87 89 88 89 84 Max heat 88 90 89 90 89 89 Date Fri 06/20/25 Sat 06/21/25 Sun 06/22/25 Mon 06/23/25 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 67 91 70 92 72 93 Temp 70 70 85 81 70 70 88 84 73 74 91 84 75 75 90 83 Dewpt 69 69 71 71 67 68 72 72 70 71 74 74 71 72 75 73 PWind Dir SW SW NE S SW SW N E Wind Char LT LT LT LT LT LT LT LT Avg Clouds B1 B2 SC FW FW FW FW FW FW FW FW FW FW FW FW SC PoP 12hr 20 20 5 20 5 20 10 30 Rain shwrs S S S S C Tstms S S S S C $$ TNZ099-172000- Chattanooga Airport-Hamilton TN 35.03N 85.22W Elev. 688 ft 122 AM EDT Tue Jun 17 2025 Date Tue 06/17/25 Wed 06/18/25 Thu 06/19/25 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 85 71 87 72 88 Temp 71 72 80 84 83 77 73 72 71 73 80 83 83 80 75 74 73 74 82 85 84 78 Dewpt 70 71 74 74 73 72 72 71 71 72 74 75 75 72 73 72 72 73 76 75 74 73 RH 97 97 82 72 72 85 97 97100 97 82 77 77 77 94 93 97 97 82 72 72 85 Wind Dir S S S S S S S S S S SW SW SW S S S S SW SW SW W W Wind Spd 2 4 8 10 10 6 5 4 4 5 6 9 8 5 3 3 4 5 5 8 6 3 Wind Gust 17 Clouds SC SC SC B1 B1 B2 B2 B1 B2 B1 B2 B1 B1 B1 SC SC SC B1 SC B1 B1 B2 PoP 12hr 80 70 70 30 90 QPF 12hr 0.22 0.31 0.15 0.01 0.25 Rain shwrs S S C C L L S C C C C L L C C C C D D C Tstms S S C C L C S C C S C L C S C S C L L C Heat index 84 91 89 84 90 90 84 89 94 91 Max heat 91 93 90 90 94 94 Date Fri 06/20/25 Sat 06/21/25 Sun 06/22/25 Mon 06/23/25 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 71 90 70 94 73 94 74 94 Temp 72 72 88 83 72 73 91 85 75 75 92 86 76 76 93 85 Dewpt 72 71 71 72 71 71 72 73 72 72 74 74 74 73 73 73 PWind Dir W NW NW S S S NW E Wind Char LT LT LT LT LT LT LT LT Avg Clouds B1 B1 SC FW FW FW FW FW FW FW FW FW FW FW FW FW PoP 12hr 30 30 5 20 5 20 10 40 Rain shwrs C C S S C Tstms C S S S C $$ NCZ060-172000- Tusquitee RAWS-Forestry-Cherokee NC 35.07N 84.12W Elev. 1600 ft 122 AM EDT Tue Jun 17 2025 Date Tue 06/17/25 Wed 06/18/25 Thu 06/19/25 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 85 66 84 66 85 Temp 66 67 77 83 82 76 71 68 66 68 76 81 82 76 70 69 68 68 78 83 80 75 Dewpt 66 67 71 70 70 69 68 67 66 67 72 71 71 70 68 67 67 68 72 71 71 69 RH 100100 82 65 67 79 90 97100 97 87 72 69 82 93 93 97100 82 67 74 82 Min/Max RH 63 100 69 100 67 Wind Dir SE S SW SW SW SW SE SE S SW SW SW SW S S S S SW SW SW W W Wind Dir Deg 14 16 21 21 20 21 14 14 16 20 21 22 21 19 16 18 19 20 22 23 24 27 Wind Spd 1 1 4 5 6 5 2 2 2 3 5 5 6 3 2 1 2 2 4 5 5 2 Clouds B1 B1 SC SC B1 B1 B1 B2 B2 B2 B1 B1 B1 B1 SC SC SC B2 SC B1 B2 B2 Clouds (%) 55 64 39 50 51 65 68 75 73 78 68 61 58 54 46 35 48 73 49 60 70 75 Vsby 7 10 10 10 10 6 10 10 7 7 10 PoP 12hr 60 70 70 30 90 QPF 12hr 0.20 0.22 0.17 0.01 0.34 Rain shwrs S C C L C C S C C L L S S C C C C D D C Tstms S C C C S C S S C L C S S S C D D C Heat index 87 86 85 86 88 83 Max heat 87 88 85 86 88 88 ChanceThunder 80 50 60 20 80 Max Mix Hgt AGL Mix Hgt 4300 4000 4000 Max Vent Rt 74300 60100 64300 T Wind Dir SW SW SW T Wind Spd 12 11 11 ADI 65 52 56 Max LVORI 9 6 9 Stability F B A F F B B G F B B Ceiling NONE NONE NONE NONE NONE NONE NONE NONE NONE NONE NONE Sta Pres 27.92 27.92 27.89 27.92 27.97 27.98 27.95 27.98 28.00 27.98 27.96 Date Fri 06/20/25 Sat 06/21/25 Sun 06/22/25 Mon 06/23/25 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 87 63 91 66 92 68 92 Temp 67 67 84 78 66 67 88 81 69 70 89 81 71 70 89 80 Dewpt 67 67 68 68 64 65 68 70 67 67 70 71 68 68 70 71 PWind Dir NW NW E SW SE N E N Wind Char LT LT LT LT LT LT LT LT Avg Clouds B2 B2 SC FW FW FW FW FW FW FW FW FW FW FW FW SC PoP 12hr 30 30 10 30 10 30 10 40 Rain shwrs C C C C S C Tstms C S S C 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 $$