Point Forecast Matrices
Issued by NWS Knoxville/Tri Cities, TN
Issued by NWS Knoxville/Tri Cities, TN
467 FOUS54 KMRX 040533 PFMMRX Point Forecast Matrices National Weather Service Morristown TN 133 AM EDT Mon Aug 4 2025 TNZ017-042000- Tri Cities Airport-Sullivan TN 36.50N 82.41W Elev. 1536 ft 133 AM EDT Mon Aug 4 2025 Date Mon 08/04/25 Tue 08/05/25 Wed 08/06/25 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 80 63 77 63 80 Temp 60 62 72 78 79 74 68 65 64 64 68 73 76 72 67 65 64 65 71 76 79 74 Dewpt 55 57 60 63 63 61 59 58 58 60 62 64 64 63 62 61 60 62 65 66 66 65 RH 84 84 66 60 58 64 73 78 81 87 81 73 66 73 84 87 87 90 81 71 64 74 Wind Dir NE E E E SE SE E E E E E E E E E E E E E E E E Wind Spd 2 2 3 4 5 5 3 2 2 3 4 5 5 5 4 2 2 2 2 3 3 3 Clouds SC B1 SC B1 B1 B2 B2 B1 B2 B2 OV B2 B2 B1 B1 B2 B2 B2 B2 B1 SC SC PoP 12hr 20 60 70 50 40 QPF 12hr 0 0.08 0.10 0.11 0.12 Rain shwrs S S S C C L L C C C C C C C C C C C Tstms S S S S S S S Date Thu 08/07/25 Fri 08/08/25 Sat 08/09/25 Sun 08/10/25 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 63 84 64 84 66 87 Temp 65 65 79 75 66 66 80 76 66 65 79 78 67 67 82 78 Dewpt 63 63 67 65 63 63 66 65 62 63 67 66 65 65 69 68 PWind Dir E E E E E E E S Wind Char LT LT LT LT LT LT LT LT Avg Clouds SC B1 B1 SC SC SC B1 SC SC SC SC SC SC SC SC SC PoP 12hr 30 50 20 40 20 30 10 30 Rain shwrs C S C S S C S S C C Tstms S C S S C S C C $$ TNZ071-042000- Knoxville McGhee Tyson Airport-Blount TN 35.80N 83.98W Elev. 979 ft 133 AM EDT Mon Aug 4 2025 Date Mon 08/04/25 Tue 08/05/25 Wed 08/06/25 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 81 66 80 67 82 Temp 66 66 71 78 79 73 70 69 67 67 71 77 79 75 71 70 69 69 75 80 81 77 Dewpt 63 63 65 66 67 66 65 65 64 64 66 68 69 67 67 66 66 67 69 70 70 69 RH 90 90 81 67 67 79 84 87 90 90 84 74 72 76 87 87 90 93 82 72 69 76 Wind Dir NE NE N NW SW SW W NE NE NE NE NE E S E SE E NE NE NE NE S Wind Spd 2 2 2 2 3 3 2 2 2 2 2 3 3 3 2 2 1 1 2 2 3 2 Clouds B2 B2 B1 B1 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B1 SC B1 PoP 12hr 40 50 50 40 40 QPF 12hr 0.03 0.15 0.10 0.07 0.07 Rain shwrs S C C C C C C C C C C C C C S S C C S Tstms S S S S S S S S Heat index 83 85 Max heat 82 83 85 Date Thu 08/07/25 Fri 08/08/25 Sat 08/09/25 Sun 08/10/25 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 68 86 68 87 68 87 69 89 Temp 70 69 82 77 71 69 84 78 71 69 83 79 72 71 86 81 Dewpt 68 68 70 69 68 67 69 69 68 67 69 69 68 68 71 70 PWind Dir SE NE E E E E SE SW Wind Char LT LT LT LT LT LT LT LT Avg Clouds B1 B1 B1 SC B1 B1 SC SC SC SC SC SC SC SC SC SC PoP 12hr 20 50 20 40 10 30 10 30 Rain shwrs S C S C C C Tstms S C S C C C $$ TNZ036-042000- Oak Ridge-Anderson TN 36.00N 84.24W Elev. 913 ft 133 AM EDT Mon Aug 4 2025 Date Mon 08/04/25 Tue 08/05/25 Wed 08/06/25 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 81 66 80 67 82 Temp 65 66 72 79 78 74 70 68 67 67 73 78 78 75 70 68 67 68 75 80 81 77 Dewpt 63 63 66 66 67 66 66 64 64 64 67 68 69 68 67 66 66 67 69 70 70 69 RH 93 90 81 64 69 76 87 87 90 90 81 71 74 79 90 93 97 97 82 72 69 76 Wind Dir NE NE NE E S SW W W N NE E E E E E NE N NE E E E E Wind Spd 2 2 2 2 3 2 2 1 1 2 2 2 2 2 2 1 1 1 1 2 2 1 Clouds B2 B2 B1 B1 B2 B2 B2 B2 B2 B2 OV B2 B2 B2 B2 B1 B2 B2 B2 B1 SC SC PoP 12hr 30 40 40 20 40 QPF 12hr 0 0.11 0.07 0.05 0.05 Rain shwrs S C C S C C C C C S S S S S S C C S Tstms S S S S S S S Heat index 83 85 Max heat 82 83 85 Date Thu 08/07/25 Fri 08/08/25 Sat 08/09/25 Sun 08/10/25 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 85 68 87 67 86 68 89 Temp 70 69 82 77 70 69 84 77 70 69 83 79 71 70 86 81 Dewpt 68 68 71 69 68 68 71 68 68 68 70 69 68 69 71 70 PWind Dir NE NE NE NE NE E E S Wind Char LT LT LT LT LT LT LT LT Avg Clouds SC B1 B1 SC SC B1 B1 SC SC SC SC SC SC SC SC SC PoP 12hr 20 50 10 40 10 30 5 40 Rain shwrs S C C C C Tstms S C C C C $$ TNZ099-042000- Chattanooga Airport-Hamilton TN 35.03N 85.22W Elev. 688 ft 133 AM EDT Mon Aug 4 2025 Date Mon 08/04/25 Tue 08/05/25 Wed 08/06/25 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 75 66 79 67 82 Temp 66 66 71 73 74 71 67 66 67 67 71 75 78 74 70 69 68 69 75 80 81 77 Dewpt 63 63 65 66 68 66 65 64 64 65 67 69 70 69 69 68 67 67 70 71 71 71 RH 90 90 81 79 82 84 93 93 90 93 87 82 76 84 97 97 97 93 84 74 72 82 Wind Dir NE NE E SE SE SE SE E NE NE E E SE SE SE S SE E SE S S SE Wind Spd 2 2 3 5 6 4 2 2 2 2 2 4 4 3 2 1 1 1 2 2 3 2 Clouds B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B1 SC SC PoP 12hr 50 40 40 30 40 QPF 12hr 0.06 0.12 0.07 0.04 0.04 Rain shwrs S C C C C C C C C C C C C C S S S S C C Tstms S S S S S S S Heat index 83 85 Max heat 83 85 Date Thu 08/07/25 Fri 08/08/25 Sat 08/09/25 Sun 08/10/25 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 68 86 69 87 69 87 70 89 Temp 70 69 82 77 71 70 84 78 71 71 83 79 72 71 86 81 Dewpt 69 69 70 70 69 69 71 70 70 69 70 71 69 69 72 72 PWind Dir SE E E E SE E SE SE Wind Char LT LT LT LT LT LT LT LT Avg Clouds SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC SC PoP 12hr 10 50 10 50 5 40 5 40 Rain shwrs C C C C Tstms C C C C $$ NCZ060-042000- Tusquitee RAWS-Forestry-Cherokee NC 35.07N 84.12W Elev. 1600 ft 133 AM EDT Mon Aug 4 2025 Date Mon 08/04/25 Tue 08/05/25 Wed 08/06/25 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 73 61 75 62 79 Temp 61 61 67 72 71 66 63 63 62 62 68 73 73 70 66 65 64 64 72 78 77 73 Dewpt 58 58 62 63 62 62 61 61 61 61 65 66 65 66 64 64 63 64 68 69 68 69 RH 90 90 84 73 73 87 93 93 97 97 90 79 76 87 93 97 97100 87 74 74 87 Min/Max RH 73 97 74 100 71 Wind Dir E E E SE SE SE E SE E E E SE SE SE SE SE E E SE S SW SE Wind Dir Deg 11 11 11 13 13 12 11 12 9 10 10 12 13 13 12 12 11 11 15 18 20 15 Wind Spd 3 3 4 5 6 4 3 2 2 2 3 4 4 2 2 1 1 1 1 2 2 1 Clouds B2 B2 B2 B2 B2 OV OV OV OV OV OV B2 B2 B2 B2 B2 B2 B2 B2 B1 B1 B1 Clouds (%) 75 87 83 82 84 89 90 94 97 95 88 84 80 82 80 83 87 86 81 64 58 57 Vsby 7 10 10 10 6 6 5 3 2 3 4 6 PoP 12hr 60 60 70 60 50 QPF 12hr 0.17 0.19 0.18 0.12 0.12 Rain shwrs C C C L L L L L L L L L L L C C S S C C C Tstms S S S S S S S S ChanceThunder 20 20 20 20 20 Max Mix Hgt AGL Mix Hgt 2100 1800 3300 Max Vent Rt 22800 9200 12800 T Wind Dir E SE SE T Wind Spd 11 5 3 ADI 23 9 13 Max LVORI 6 9 10 Stability D C B D D B B D D B B Ceiling 25000 25000 25000 25000 25000 25000 25000 25000 25000 25000 25000 Sta Pres 27.99 27.99 28.01 28.03 28.08 28.11 28.11 28.12 28.14 28.13 28.11 Date Thu 08/07/25 Fri 08/08/25 Sat 08/09/25 Sun 08/10/25 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 82 62 84 63 84 64 86 Temp 65 64 79 72 65 63 80 73 66 64 80 74 66 65 83 76 Dewpt 65 64 68 68 65 63 68 68 65 63 68 68 66 65 69 70 PWind Dir SE SE E SE E SE E S Wind Char LT LT LT LT LT LT LT LT Avg Clouds B1 B1 B1 B1 SC B1 SC SC SC SC SC SC SC SC SC SC PoP 12hr 30 70 20 60 20 50 10 50 Rain shwrs C S L S S L S S C C Tstms S S C S S C S S C 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 $$