Point Forecast Matrices
Issued by NWS Knoxville/Tri Cities, TN
Issued by NWS Knoxville/Tri Cities, TN
958 FOUS54 KMRX 101738 PFMMRX Point Forecast Matrices National Weather Service Morristown TN 137 PM EDT Sun Aug 10 2025 TNZ017-110800- Tri Cities Airport-Sullivan TN 36.50N 82.41W Elev. 1536 ft 137 PM EDT Sun Aug 10 2025 Date 08/10/25 Mon 08/11/25 Tue 08/12/25 Wed EDT 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 65 86 67 86 69 Temp 86 80 72 67 65 67 78 84 83 79 72 69 67 69 78 83 85 81 73 71 70 70 Dewpt 63 64 64 64 64 65 66 66 67 68 68 67 67 67 69 69 69 70 70 70 69 70 RH 46 58 76 90 97 93 67 55 59 69 87 93100 93 74 63 59 69 90 97 97100 Wind Dir SW E SE E NE E SE E SE SE SE E E E S S SW S S S SW SW Wind Spd 3 5 4 2 2 2 3 4 5 5 3 2 2 1 2 3 3 2 2 2 2 2 Clouds SC SC FW FW FW SC SC SC SC SC FW FW B1 B1 SC B1 SC SC B1 B1 B2 OV PoP 12hr 5 30 20 50 40 QPF 12hr 0 0 0 0.06 0.05 Rain shwrs C C S S C C C C C C C C C Tstms C C S S C C C S S S Heat index 87 86 87 89 84 Max heat 89 88 89 88 91 Date 08/13 Thu 08/14/25 Fri 08/15/25 Sat 08/16/25 Sun 08/17/25 EDT 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 83 68 86 67 89 68 88 68 87 Temp 81 79 70 69 83 80 70 68 87 81 70 69 87 79 70 69 84 80 Dewpt 71 70 70 69 71 69 69 68 70 68 68 68 69 68 69 68 70 69 PWind Dir SW SW W S N E S SE W Wind Char LT LT LT LT LT LT LT LT LT Avg Clouds B2 B1 B1 B2 B2 B1 SC SC SC SC SC SC B1 B1 SC SC B1 SC PoP 12hr 70 30 50 10 40 20 40 20 40 Rain shwrs C L C S S C C S S C S C Tstms C C S S S C C S S C S C $$ TNZ071-110800- Knoxville McGhee Tyson Airport-Blount TN 35.80N 83.98W Elev. 979 ft 137 PM EDT Sun Aug 10 2025 Date 08/10/25 Mon 08/11/25 Tue 08/12/25 Wed EDT 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 70 88 71 87 72 Temp 87 82 76 73 71 72 81 86 86 81 76 73 72 71 79 85 86 81 77 75 73 73 Dewpt 65 65 67 68 67 67 69 69 69 70 71 71 70 70 71 71 71 72 72 72 71 72 RH 48 56 74 84 87 84 67 57 57 69 85 93 93 97 77 63 61 74 85 90 93 97 Wind Dir NE E S N NE NE NE E E SE S SW SE E S S SW SW S SW SW SW Wind Spd 5 4 3 2 2 2 2 3 5 4 2 2 2 2 2 3 4 4 3 2 2 2 Clouds SC SC SC SC SC SC SC SC B1 SC SC B1 B1 B2 B1 B1 B1 B1 B2 B2 B2 B2 PoP 12hr 5 30 20 50 40 QPF 12hr 0 0 0 0.05 0.05 Rain shwrs C C S S S S C C C C C C C C C Tstms C C S S S C C C C S S Heat index 84 90 90 85 90 91 85 Max heat 89 82 90 92 90 93 84 Date 08/13 Thu 08/14/25 Fri 08/15/25 Sat 08/16/25 Sun 08/17/25 EDT 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 86 72 89 72 91 72 91 71 89 Temp 84 80 74 73 87 83 74 72 89 84 74 74 89 82 74 73 88 81 Dewpt 73 71 72 72 73 71 72 71 72 71 71 70 72 70 72 71 73 71 PWind Dir SW SW W S N SE NW SE NW Wind Char LT LT LT LT LT LT LT LT LT Avg Clouds B2 B1 B1 B1 B1 B1 B1 SC SC SC SC SC SC SC B1 SC SC SC PoP 12hr 60 30 50 10 40 10 40 10 30 Rain shwrs C L C S S C C C C Tstms C C C S S C C C C $$ TNZ036-110800- Oak Ridge-Anderson TN 36.00N 84.24W Elev. 913 ft 137 PM EDT Sun Aug 10 2025 Date 08/10/25 Mon 08/11/25 Tue 08/12/25 Wed EDT 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 70 89 71 88 72 Temp 88 82 76 73 71 72 82 88 86 81 75 73 72 71 79 85 87 82 76 74 73 73 Dewpt 65 66 66 68 67 67 68 68 69 70 71 71 70 70 71 71 71 71 72 72 71 72 RH 47 58 71 84 87 84 63 52 57 69 87 93 93 97 77 63 59 69 87 93 93 97 Wind Dir NE E E NW N NE E E SE SE S W SW NE S S S SW SW SW SW SW Wind Spd 3 2 2 1 2 2 2 2 3 2 2 2 1 1 2 2 3 2 2 2 2 2 Clouds SC SC SC SC SC B1 SC SC B1 B1 SC SC B2 B2 B2 B1 B1 SC B1 B2 B2 OV PoP 12hr 5 30 10 50 40 QPF 12hr 0 0 0 0.32 0.05 Rain shwrs S S C C C C C C C C C Tstms S S S S C C C C S S S Heat index 85 92 90 85 90 93 86 Max heat 90 92 93 90 93 83 Date 08/13 Thu 08/14/25 Fri 08/15/25 Sat 08/16/25 Sun 08/17/25 EDT 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 86 71 88 71 91 71 91 71 89 Temp 85 79 73 71 87 81 73 73 91 83 73 73 89 82 74 72 88 81 Dewpt 73 72 72 71 73 71 72 71 72 71 71 70 73 70 71 71 73 71 PWind Dir SW SW W NW NE NE SW W S Wind Char LT LT LT LT LT LT LT LT LT Avg Clouds B2 B2 B1 B1 B1 B1 B1 SC SC SC SC SC SC SC SC SC B1 SC PoP 12hr 70 30 50 10 40 10 40 10 40 Rain shwrs C L C S S C C C C Tstms C C C S S C C C C $$ TNZ099-110800- Chattanooga Airport-Hamilton TN 35.03N 85.22W Elev. 688 ft 137 PM EDT Sun Aug 10 2025 Date 08/10/25 Mon 08/11/25 Tue 08/12/25 Wed EDT 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 71 88 73 87 72 Temp 88 83 77 73 71 71 79 84 87 82 75 74 73 74 79 84 86 81 76 74 72 72 Dewpt 67 68 69 70 69 70 71 71 72 72 73 72 72 72 73 73 73 73 74 73 72 72 RH 50 61 76 90 93 97 77 65 61 72 94 93 97 93 82 70 65 77 94 97100100 Wind Dir E SE SE S NE NE E E E SE SE S SE SE SE S S S S S S S Wind Spd 5 4 2 2 2 2 3 5 5 5 4 2 2 2 3 4 5 4 2 2 2 2 Clouds SC SC B1 B1 B1 B1 B1 B1 B1 B1 B1 B2 B2 B2 B2 B1 SC B1 B1 B2 B2 B2 PoP 12hr 5 40 20 70 40 QPF 12hr 0 0.02 0.04 0.25 0.07 Rain shwrs C C S S S S C C L L C C C C C Tstms C C S S S C L L C S S S Heat index 91 86 89 94 87 90 93 86 Max heat 92 83 89 94 90 93 Date 08/13 Thu 08/14/25 Fri 08/15/25 Sat 08/16/25 Sun 08/17/25 EDT 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 88 73 91 73 92 73 91 72 89 Temp 84 82 75 74 88 84 75 74 90 86 76 73 88 83 74 73 88 81 Dewpt 74 73 74 73 74 73 73 73 73 72 73 73 73 72 72 73 72 72 PWind Dir SW SW W W NW N S E S Wind Char LT LT LT LT LT LT LT LT LT Avg Clouds B2 B1 B1 B1 B1 B1 SC SC SC SC SC SC SC SC SC SC SC SC PoP 12hr 70 20 60 10 40 10 40 10 40 Rain shwrs C L S S S L C C C Tstms S L S S S L C C C $$ NCZ060-110800- Tusquitee RAWS-Forestry-Cherokee NC 35.07N 84.12W Elev. 1600 ft 137 PM EDT Sun Aug 10 2025 Date 08/10/25 Mon 08/11/25 Tue 08/12/25 Wed EDT 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 67 83 68 83 68 Temp 87 80 71 67 67 68 76 81 80 75 70 70 69 68 75 80 82 77 70 70 69 69 Dewpt 68 68 67 66 66 67 69 70 70 70 69 68 68 68 72 70 70 71 70 70 69 69 RH 53 67 87 97 97 97 79 69 72 84 97 93 97100 90 72 67 82100100100100 Max/Min RH 97 67 100 67 100 Wind Dir E SE E E E E E SE SE SE SE SE E SE SE S S SE SE SE SE S Wind Dir Deg 11 12 11 11 11 10 11 12 12 12 12 12 11 12 15 17 16 15 15 14 15 17 Wind Spd 4 3 3 2 2 2 3 5 5 4 3 2 2 2 2 4 3 2 1 1 1 1 Clouds SC B1 B1 B1 B1 B2 B1 B2 B1 SC B1 B2 B2 OV B2 B2 B1 B1 B2 OV OV OV Clouds (%) 41 60 51 64 63 71 67 70 60 36 63 83 85 88 76 75 64 58 73 88 95 93 Vsby 10 10 10 7 7 7 8 6 10 10 7 10 7 7 PoP 12hr 20 60 40 70 50 QPF 12hr 0 0.05 0.16 0.26 0.13 Rain shwrs S S S L C C C C C C C L L C C C C C Tstms S S S C C C S S C L C C S S S S Heat index 91 83 85 83 83 86 Max heat 92 85 86 83 86 ChanceThunder 20 50 30 60 30 Max Mix Hgt AGL Mix Hgt 3200 3300 Max Vent Rt 31500 29300 T Wind Dir E S T Wind Spd 10 9 ADI 32 29 Max LVORI 7 8 Stability B F F B A D D B B D D Ceiling NONE NONE NONE NONE NONE NONE NONE NONE NONE NONE NONE Sta Pres 28.01 28.03 28.06 28.04 28.01 28.03 28.05 28.02 27.98 27.99 27.98 Date 08/13 Thu 08/14/25 Fri 08/15/25 Sat 08/16/25 Sun 08/17/25 EDT 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 85 67 89 66 88 68 88 67 86 Temp 84 76 69 69 87 77 69 67 87 77 69 69 86 75 69 68 85 75 Dewpt 71 69 69 69 70 69 69 67 70 69 69 68 71 69 69 68 69 69 PWind Dir SW SW NW NW NW E S E SE Wind Char LT LT LT LT LT LT LT LT LT Avg Clouds B2 B1 B1 B1 B1 B1 B1 B1 SC SC SC B1 B1 B1 B1 B1 SC SC PoP 12hr 80 30 60 20 50 20 50 20 50 Rain shwrs C D C S L S C S S C S C Tstms C L C S C S 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 $$