Point Forecast Matrices
Issued by NWS Knoxville/Tri Cities, TN
Issued by NWS Knoxville/Tri Cities, TN
488 FOUS54 KMRX 160627 PFMMRX Point Forecast Matrices National Weather Service Morristown TN 227 AM EDT Wed Sep 16 2026 TNZ017-162000- Tri Cities Airport-Sullivan TN 36.50N 82.41W Elev. 1536 ft 227 AM EDT Wed Sep 16 2026 Date Wed 09/16/26 Thu 09/17/26 Fri 09/18/26 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 66 90 67 89 Temp 65 64 78 87 90 82 73 70 67 67 80 88 89 80 72 70 69 67 80 87 85 77 Dewpt 64 64 69 70 69 70 69 67 66 66 69 70 70 71 70 69 68 67 71 71 71 71 RH 97100 74 57 50 67 87 90 97 97 69 55 54 74 93 97 97100 74 59 63 82 Wind Dir NE NE SW NW NE N S SE N SE SW W NW W N N N N W NW N N Wind Spd 1 1 1 2 2 1 1 0 0 0 1 3 3 1 0 0 0 0 1 4 4 3 Clouds FW FW FW FW FW FW FW FW SC SC SC SC SC B1 SC SC SC SC SC SC SC SC PoP 12hr 0 0 20 10 60 QPF 12hr 0 0 0 0 0.06 Rain shwrs S S L L Tstms S S C C Heat index 92 95 86 93 94 83 83 93 90 Max heat 94 96 95 96 95 95 Date Sat 09/19/26 Sun 09/20/26 Mon 09/21/26 Tue 09/22/26 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 88 66 88 66 87 65 85 Temp 69 66 85 79 69 67 85 79 69 67 85 77 68 66 82 76 Dewpt 68 66 70 69 67 66 70 70 67 66 70 70 67 66 69 69 PWind Dir NE S SE W E W E SE Wind Char LT LT LT LT LT LT LT LT Avg Clouds SC SC SC SC SC SC SC SC SC SC B1 B1 B1 B1 B1 B1 PoP 12hr 10 30 30 40 20 50 30 50 Rain shwrs C C C S S C C C Tstms S S C S C S $$ TNZ071-162000- Knoxville McGhee Tyson Airport-Blount TN 35.80N 83.98W Elev. 979 ft 227 AM EDT Wed Sep 16 2026 Date Wed 09/16/26 Thu 09/17/26 Fri 09/18/26 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 93 70 94 71 94 Temp 72 70 82 90 93 85 77 74 72 70 83 91 94 86 78 75 73 72 84 91 93 85 Dewpt 69 69 71 72 70 70 70 70 69 68 70 71 70 70 70 70 69 68 71 71 71 71 RH 90 97 69 56 47 61 79 87 90 93 65 52 46 59 76 84 87 87 65 52 49 63 Wind Dir W SE N N NE E SE N N SE W N NE N SE N N N N N N E Wind Spd 1 1 0 2 5 3 1 0 0 1 1 2 3 2 1 0 0 0 0 3 5 4 Clouds FW FW FW FW CL FW FW FW FW FW FW FW FW SC FW FW FW FW FW SC SC SC PoP 12hr 0 0 0 0 30 QPF 12hr 0 0 0 0 0.02 Rain shwrs C C Tstms C C Heat index 86 97 99 90 87 98100 91 89 98100 90 Max heat 97 99 85 98 100 86 98 101 Date Sat 09/19/26 Sun 09/20/26 Mon 09/21/26 Tue 09/22/26 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 70 93 70 92 70 92 69 89 Temp 74 71 90 85 74 71 90 84 74 71 89 82 72 70 87 79 Dewpt 71 69 72 70 70 68 71 70 69 68 71 71 70 68 71 70 PWind Dir E S S SW S NW E NE Wind Char LT LT LT LT LT LT LT LT Avg Clouds SC SC FW SC SC SC SC SC SC B1 B1 SC B1 B1 B1 SC PoP 12hr 10 30 20 30 20 40 20 50 Rain shwrs C S C S C S S C Tstms C S C S C S $$ TNZ036-162000- Oak Ridge-Anderson TN 36.00N 84.24W Elev. 913 ft 227 AM EDT Wed Sep 16 2026 Date Wed 09/16/26 Thu 09/17/26 Fri 09/18/26 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 70 94 70 94 Temp 71 70 82 90 92 84 75 73 71 70 84 92 92 82 76 73 72 71 86 93 92 82 Dewpt 69 69 72 73 72 71 71 70 69 69 72 72 72 72 71 70 69 69 72 73 73 72 RH 93 97 72 58 52 65 87 90 93 97 67 52 52 72 85 90 90 93 63 52 54 72 Wind Dir W W SW N NE N N N N N N NE N N NW N N N N N N NE Wind Spd 2 1 2 0 2 1 0 0 0 0 0 1 2 1 1 0 0 0 0 2 3 2 Clouds FW FW FW CL FW FW FW FW FW FW FW SC SC SC SC FW SC SC FW SC SC SC PoP 12hr 5 0 10 5 20 QPF 12hr 0 0 0 0 0 Rain shwrs S S Tstms S S Heat index 87 98100 89 90100100 87 92102101 87 Max heat 98 100 100 102 102 103 Date Sat 09/19/26 Sun 09/20/26 Mon 09/21/26 Tue 09/22/26 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 93 70 92 69 91 68 88 Temp 73 70 90 83 73 71 89 82 73 70 89 81 71 69 86 78 Dewpt 71 69 73 71 70 68 72 71 70 69 72 71 70 68 72 71 PWind Dir NE SE SW SW W S NE NW Wind Char LT LT LT LT LT LT LT LT Avg Clouds SC SC FW SC SC SC SC SC SC B1 B1 B1 B2 B1 B1 SC PoP 12hr 5 30 10 20 20 40 20 50 Rain shwrs C S S C S C Tstms C S S C C $$ TNZ099-162000- Chattanooga Airport-Hamilton TN 35.03N 85.22W Elev. 688 ft 227 AM EDT Wed Sep 16 2026 Date Wed 09/16/26 Thu 09/17/26 Fri 09/18/26 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 96 72 98 72 98 Temp 74 73 84 93 96 88 80 76 73 72 86 95 98 89 80 77 75 73 88 95 97 89 Dewpt 70 70 71 71 68 68 69 69 68 68 69 69 67 68 69 69 69 69 70 69 68 70 RH 87 90 65 49 40 52 69 79 84 87 57 43 37 50 69 76 82 87 55 43 39 54 Wind Dir S S S E NE E SE SE N N N NE NE N N N N N N N N NE Wind Spd 2 1 3 1 4 2 1 1 0 0 0 3 4 3 0 0 0 0 1 5 5 4 Clouds FW FW FW FW FW FW FW FW FW FW CL FW SC SC FW FW CL CL CL FW FW SC PoP 12hr 0 0 0 0 5 QPF 12hr 0 0 0 0 0 Heat index 89100101 92 83 90101103 93 83 93101102 94 Max heat 100 101 87 101 103 88 101 104 Date Sat 09/19/26 Sun 09/20/26 Mon 09/21/26 Tue 09/22/26 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 73 97 72 96 71 95 70 91 Temp 77 73 94 87 75 73 93 86 75 72 92 85 73 71 89 82 Dewpt 70 70 70 69 69 69 70 69 69 69 70 70 70 70 71 71 PWind Dir NE S SE S S S E SE Wind Char LT LT LT LT LT LT LT LT Avg Clouds SC FW FW FW SC SC SC FW SC SC SC SC B1 SC SC SC PoP 12hr 5 20 10 10 5 40 20 50 Rain shwrs S C S C Tstms S C S C $$ NCZ060-162000- Tusquitee RAWS-Forestry-Cherokee NC 35.07N 84.12W Elev. 1600 ft 227 AM EDT Wed Sep 16 2026 Date Wed 09/16/26 Thu 09/17/26 Fri 09/18/26 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 91 63 92 65 92 Temp 66 64 78 88 89 77 71 67 65 63 79 90 89 78 71 68 67 66 82 91 88 78 Dewpt 66 64 70 70 68 70 69 67 65 63 70 69 68 69 68 66 65 64 70 70 69 70 RH 100100 76 55 50 79 93100100100 74 50 50 74 90 93 93 93 67 50 54 76 Min/Max RH 49 100 47 97 49 Wind Dir E N N N N S E N N N W NW NW NW N N N N N N N N Wind Dir Deg 9 0 0 33 33 16 10 0 0 0 28 30 30 29 0 0 0 0 33 33 0 2 Wind Spd 1 0 0 2 2 1 1 0 0 0 1 3 3 1 0 0 0 0 1 3 3 1 Clouds FW SC FW FW FW FW FW FW SC B1 FW SC SC SC FW FW FW SC FW SC SC SC Clouds (%) 25 42 9 16 22 21 15 25 35 57 19 26 27 36 14 19 13 29 8 28 40 40 Vsby 7 7 10 10 10 10 10 10 7 7 10 PoP 12hr 5 0 10 0 10 QPF 12hr 0 0 0 0 0 Heat index 93 93 95 93 86 97 92 Max heat 93 94 95 95 97 98 ChanceThunder 5 0 10 0 10 Max Mix Hgt AGL Mix Hgt 5500 6700 6300 Max Vent Rt 27300 40100 37600 T Wind Dir NE N N T Wind Spd 4 4 5 ADI 27 40 38 Max LVORI 10 10 8 Stability G B B G F B B G G B B Ceiling NONE NONE 23500 NONE NONE NONE NONE NONE NONE NONE NONE Sta Pres 28.23 28.20 28.17 28.19 28.21 28.15 28.11 28.10 28.08 28.03 27.99 Date Sat 09/19/26 Sun 09/20/26 Mon 09/21/26 Tue 09/22/26 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 90 64 89 63 88 63 86 Temp 69 66 89 78 68 65 86 77 67 64 86 76 67 64 84 75 Dewpt 68 66 71 70 67 65 70 70 67 64 70 70 67 64 70 69 PWind Dir N S SE S N SW E SE Wind Char LT LT LT LT LT LT LT LT Avg Clouds SC SC SC SC SC SC B1 SC SC SC B1 B1 B1 B1 B1 B1 PoP 12hr 5 50 10 50 10 70 20 60 Rain shwrs S C S C C L S C L Tstms C C 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 $$