Point Forecast Matrices
Issued by NWS Knoxville/Tri Cities, TN
Issued by NWS Knoxville/Tri Cities, TN
198 FOUS54 KMRX 170850 PFMMRX Point Forecast Matrices National Weather Service Morristown TN 450 AM EDT Thu Jul 17 2025 TNZ017-172000- Tri Cities Airport-Sullivan TN 36.50N 82.41W Elev. 1536 ft 450 AM EDT Thu Jul 17 2025 Date Thu 07/17/25 Fri 07/18/25 Sat 07/19/25 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 88 70 87 70 84 Temp 72 73 80 83 85 81 74 72 71 72 80 83 83 80 74 72 71 71 78 80 81 78 Dewpt 70 71 73 71 70 71 71 70 69 70 72 71 71 72 71 70 69 70 71 70 71 70 RH 93 93 79 67 61 72 90 93 93 93 77 67 67 77 90 93 93 97 79 72 72 76 Wind Dir S SW W SW W S SE S S S W SW W SW S S S SW SW SW SW SW Wind Spd 2 2 5 8 6 3 2 1 1 2 4 6 5 3 2 1 1 2 5 8 8 4 Clouds B1 SC B1 B1 SC SC B1 SC B1 B1 B1 B2 B1 B1 B1 B2 B2 B1 B2 B2 B2 B1 PoP 12hr 70 40 90 40 80 QPF 12hr 0.06 0.04 0.41 0.04 0.40 Rain shwrs S C L L C S S C C D D C C C C C C D D C Tstms C L L C S S S C D D C S S S S C L L C Heat index 88 90 85 84 88 88 83 83 84 Max heat 90 92 90 90 85 85 Date Sun 07/20/25 Mon 07/21/25 Tue 07/22/25 Wed 07/23/25 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 70 86 70 88 69 88 69 90 Temp 72 71 82 80 72 71 83 80 71 71 84 82 72 72 86 84 Dewpt 70 71 73 71 71 71 70 72 70 69 71 72 70 69 70 71 PWind Dir SW W SW W SE S SE SW Wind Char LT LT LT LT LT LT LT LT Avg Clouds B1 B2 B2 B1 B1 B2 B1 B1 SC B1 SC SC SC SC SC SC PoP 12hr 50 70 40 70 30 50 30 40 Rain shwrs C C C L C C L C S S C C S S C Tstms C S C L C C L C S C C S C $$ TNZ071-172000- Knoxville McGhee Tyson Airport-Blount TN 35.80N 83.98W Elev. 979 ft 450 AM EDT Thu Jul 17 2025 Date Thu 07/17/25 Fri 07/18/25 Sat 07/19/25 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 93 74 91 74 89 Temp 76 77 85 91 92 86 80 77 75 77 85 89 89 84 79 77 75 76 82 87 87 83 Dewpt 70 71 72 70 70 70 71 71 71 71 73 71 71 72 73 72 71 73 72 72 72 70 RH 82 82 65 50 49 59 74 82 87 82 67 56 56 67 82 85 87 90 72 61 61 65 Wind Dir SW SW SW SW SW SW S SW SW SW SW SW SW SW S S SW SW SW SW SW SW Wind Spd 3 3 6 8 6 4 2 2 2 2 4 6 5 4 2 2 2 4 6 9 9 5 Clouds SC FW SC SC FW SC SC SC SC SC B1 B1 B1 B1 B2 B1 B1 B1 B1 B2 B1 B1 PoP 12hr 60 40 70 40 70 QPF 12hr 0.01 0.04 0.28 0.03 0.30 Rain shwrs C C C S S C C L L C C S S C C L L C Tstms C C C S S S C L L C S S C L L C Heat index 91 97 98 91 83 92 95 95 90 87 94 94 87 Max heat 97 98 89 95 96 87 94 96 Date Sun 07/20/25 Mon 07/21/25 Tue 07/22/25 Wed 07/23/25 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 74 91 74 92 74 94 74 95 Temp 76 76 88 84 76 76 89 84 76 76 92 86 77 76 91 87 Dewpt 73 73 73 71 73 73 71 74 73 73 72 73 72 71 72 71 PWind Dir SW SW SW W SE NE S W Wind Char LT LT LT LT LT LT LT LT Avg Clouds B1 B1 SC B1 B1 B1 SC B1 B1 SC SC SC SC SC SC SC PoP 12hr 30 60 30 60 20 50 20 40 Rain shwrs C S L C S L S C S C Tstms C S L C S L S C S C $$ TNZ036-172000- Oak Ridge-Anderson TN 36.00N 84.24W Elev. 913 ft 450 AM EDT Thu Jul 17 2025 Date Thu 07/17/25 Fri 07/18/25 Sat 07/19/25 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 92 73 90 72 88 Temp 75 75 84 90 91 85 78 76 74 75 84 88 88 83 78 75 74 74 82 85 85 81 Dewpt 71 72 74 71 71 71 72 72 71 72 74 73 73 71 73 73 72 72 73 73 73 71 RH 87 90 72 54 52 63 82 87 90 90 72 61 61 67 85 94 93 93 74 67 67 72 Wind Dir SW SW SW SW SW SW S SW SW SW SW SW SW W SW SW SW SW SW SW SW SW Wind Spd 2 2 5 5 4 2 1 1 2 2 3 4 3 2 2 2 2 2 4 6 5 3 Clouds B1 SC SC SC SC B1 SC B1 SC SC SC B1 B1 B2 B2 B1 B1 B1 B1 B2 B2 B1 PoP 12hr 60 40 80 40 80 QPF 12hr 0.01 0.06 0.21 0.03 0.39 Rain shwrs S C L C S C C D D C C S S C C D D C Tstms S C L C S S C D L C S S S C L L C Heat index 91 96 98 90 91 96 96 88 87 92 92 85 Max heat 96 98 87 96 97 85 92 93 Date Sun 07/20/25 Mon 07/21/25 Tue 07/22/25 Wed 07/23/25 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 72 90 73 91 72 93 73 94 Temp 75 75 88 82 75 75 89 82 75 75 91 85 76 75 91 86 Dewpt 73 73 74 72 74 73 72 74 72 72 73 74 73 72 72 72 PWind Dir SW SW SW W N NE NW SW Wind Char LT LT LT LT LT LT LT LT Avg Clouds B1 B1 B1 B1 B2 B1 B1 B1 B1 SC SC SC SC SC SC SC PoP 12hr 30 60 30 60 20 50 20 40 Rain shwrs C S L C S L S C S C Tstms C S L C S L S C S C $$ TNZ099-172000- Chattanooga Airport-Hamilton TN 35.03N 85.22W Elev. 688 ft 450 AM EDT Thu Jul 17 2025 Date Thu 07/17/25 Fri 07/18/25 Sat 07/19/25 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 94 74 93 75 93 Temp 76 76 86 92 92 87 80 77 75 76 85 91 90 85 79 77 75 76 85 89 89 85 Dewpt 71 72 73 70 70 71 73 73 73 73 73 71 72 73 74 73 73 74 73 72 73 72 RH 85 87 65 49 49 59 79 87 94 90 67 52 56 67 85 87 94 94 67 57 59 65 Wind Dir S S S S S S S S S S S S SW SW S S S S SW SW SW SW Wind Spd 2 2 4 5 5 3 2 2 1 2 3 5 5 3 2 2 2 2 5 6 8 5 Clouds SC SC FW SC SC SC SC FW FW SC SC SC B1 B2 B1 SC B1 B1 SC B1 B1 B1 PoP 12hr 40 40 60 30 60 QPF 12hr 0.01 0.01 0.07 0.01 0.09 Rain shwrs C C C S S L L C C S S L L S Tstms C C C S S L L C C S S L C S Heat index 93 98 98 93 84 92 98 97 92 92 96 97 91 Max heat 98 99 90 98 99 90 96 99 Date Sun 07/20/25 Mon 07/21/25 Tue 07/22/25 Wed 07/23/25 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 74 93 75 93 75 96 75 96 Temp 76 76 90 84 76 77 90 85 77 76 92 87 77 77 93 87 Dewpt 74 74 73 72 75 75 72 75 75 74 73 75 74 74 72 73 PWind Dir SW W W W NW N SW SE Wind Char LT LT LT LT LT LT LT LT Avg Clouds SC SC SC SC B1 SC SC B1 B1 SC SC SC SC SC FW SC PoP 12hr 20 60 20 60 10 50 20 40 Rain shwrs S S L S S L C S C Tstms S S L S S L C S C $$ NCZ060-172000- Tusquitee RAWS-Forestry-Cherokee NC 35.07N 84.12W Elev. 1600 ft 450 AM EDT Thu Jul 17 2025 Date Thu 07/17/25 Fri 07/18/25 Sat 07/19/25 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 90 68 91 68 88 Temp 70 70 81 86 86 80 73 71 69 70 81 86 86 79 73 71 69 70 79 83 85 78 Dewpt 68 69 71 69 68 70 70 69 68 68 72 69 69 71 70 69 68 69 71 69 71 70 RH 93 97 72 57 55 72 90 93 97 93 74 57 57 77 90 93 97 97 77 63 63 76 Min/Max RH 54 97 53 100 61 Wind Dir SE SE S S S S SE N N N SW SW SW SW S N N S W SW SW W Wind Dir Deg 12 13 19 19 19 16 12 0 0 0 20 22 22 21 17 0 0 19 24 23 23 24 Wind Spd 1 1 2 4 3 2 1 0 0 0 2 3 4 2 1 0 0 1 2 5 4 2 Clouds SC SC FW SC B1 SC FW SC SC SC SC B1 B1 B1 SC SC B1 B1 SC B1 B1 B1 Clouds (%) 45 33 24 46 53 46 23 42 32 49 41 54 61 62 49 47 63 65 50 60 67 57 Vsby 10 10 10 6 10 10 10 10 10 9 10 6 PoP 12hr 60 50 60 40 70 QPF 12hr 0.01 0.05 0.11 0.03 0.19 Rain shwrs L C C S S C C L L C C S S C C L L C Tstms L C C S S C L L C S S C L L C Heat index 85 90 89 83 85 90 90 87 90 Max heat 90 92 90 91 87 90 ChanceThunder 60 50 60 40 70 Max Mix Hgt AGL Mix Hgt 4800 4300 2700 Max Vent Rt 42800 42500 13000 T Wind Dir S SW SW T Wind Spd 8 8 4 ADI 43 43 13 Max LVORI 8 8 8 Stability G A A G G B B G F B B Ceiling 100 5200 NONE NONE NONE NONE NONE NONE NONE NONE NONE Sta Pres 28.01 28.00 27.98 28.02 28.05 28.03 28.01 28.04 28.05 28.04 27.99 Date Sun 07/20/25 Mon 07/21/25 Tue 07/22/25 Wed 07/23/25 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 90 68 91 68 91 68 92 Temp 71 70 86 79 71 70 87 79 71 70 88 80 71 70 88 81 Dewpt 70 69 71 69 70 70 69 71 70 69 70 72 69 68 70 69 PWind Dir SW W NW NW NE N E NE Wind Char LT LT LT LT LT LT LT LT Avg Clouds SC B1 SC B1 B1 B1 SC B1 SC SC SC SC SC B1 SC SC PoP 12hr 30 70 20 70 30 60 30 50 Rain shwrs C S L S S L C S L C S C Tstms C S L S S L C 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 $$