Point Forecast Matrices
Issued by NWS Knoxville/Tri Cities, TN
Issued by NWS Knoxville/Tri Cities, TN
286 FOUS54 KMRX 122302 PFMMRX Point Forecast Matrices National Weather Service Morristown TN 702 PM EDT Sat Sep 12 2026 TNZ017-130800- Tri Cities Airport-Sullivan TN 36.50N 82.41W Elev. 1536 ft 702 PM EDT Sat Sep 12 2026 Date 09/12/26 Sun 09/13/26 Mon 09/14/26 Tue 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 66 85 65 84 61 Temp 73 71 69 68 67 75 81 84 79 70 67 66 66 76 81 83 76 66 64 63 62 Dewpt 70 70 69 68 67 72 71 71 70 69 67 66 66 70 69 67 65 63 63 61 61 RH 90 97100100100 90 72 65 74 97100100100 82 67 59 69 90 97 93 97 Wind Dir S SW SW SW SW W W W NW N N N E N N N NE NE E E E Wind Spd 2 1 1 1 2 3 4 5 2 0 0 0 0 3 6 6 6 5 3 4 4 Clouds B1 B1 B2 B2 B2 B1 SC FW SC SC SC SC B2 B1 SC FW FW FW FW SC SC PoP 12hr 30 5 5 5 0 QPF 12hr 0.09 0 0 0 0 Rain shwrs C S Tstms Obvis PF PF F PF Heat index 85 89 84 86 Max heat 87 91 86 88 Date 09/15 Wed 09/16/26 Thu 09/17/26 Fri 09/18/26 Sat 09/19/26 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 61 88 61 89 63 88 64 86 Temp 85 79 66 62 85 79 66 62 86 79 66 64 85 78 67 65 83 77 Dewpt 69 69 63 61 68 68 64 61 66 67 63 62 68 68 66 64 67 66 PWind Dir S SE NE E NW SW W NE W Wind Char LT LT LT LT LT LT LT LT LT Avg Clouds SC FW FW CL FW FW FW FW FW FW FW FW SC FW SC FW SC SC PoP 12hr 0 0 0 0 5 10 40 10 30 Rain shwrs C C Tstms S S $$ TNZ071-130800- Knoxville McGhee Tyson Airport-Blount TN 35.80N 83.98W Elev. 979 ft 702 PM EDT Sat Sep 12 2026 Date 09/12/26 Sun 09/13/26 Mon 09/14/26 Tue EDT 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 69 90 69 90 66 Temp 74 73 72 70 69 79 87 90 83 75 72 70 69 81 87 90 83 75 71 69 67 Dewpt 72 72 72 70 69 73 72 71 71 70 70 69 69 72 72 71 70 69 68 66 66 RH 93 97100100100 82 61 54 67 84 93 97100 74 61 54 65 82 90 90 97 Wind Dir SW SW SW SW SW W W NW N E N N E NE NE NE NE NE NE NE E Wind Spd 4 3 2 2 2 1 2 3 3 1 0 0 1 4 6 8 5 6 4 2 1 Clouds SC FW FW SC B1 SC FW FW FW FW SC FW SC FW FW FW FW FW FW FW FW PoP 12hr 20 0 0 0 0 QPF 12hr 0.03 0 0 0 0 Rain shwrs S Tstms Obvis PF PF F Heat index 94 96 88 85 94 96 87 Max heat 94 96 94 96 83 Date 09/15 Wed 09/16/26 Thu 09/17/26 Fri 09/18/26 Sat 09/19/26 EDT 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 93 68 93 67 93 67 92 68 90 Temp 90 86 73 69 90 85 73 68 90 84 72 68 89 83 72 69 88 82 Dewpt 71 70 70 67 71 70 69 66 69 68 67 65 69 69 68 66 69 67 PWind Dir NW S NE S NE SE N E W Wind Char LT LT LT LT LT LT LT LT LT Avg Clouds FW FW FW FW FW FW FW FW FW FW FW FW FW FW SC SC SC FW PoP 12hr 5 0 5 0 5 5 20 10 30 Rain shwrs S C Tstms S S $$ TNZ036-130800- Oak Ridge-Anderson TN 36.00N 84.24W Elev. 913 ft 702 PM EDT Sat Sep 12 2026 Date 09/12/26 Sun 09/13/26 Mon 09/14/26 Tue 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 68 90 68 90 65 Temp 73 72 71 70 68 80 87 89 82 73 70 69 68 81 87 89 81 73 70 67 66 Dewpt 73 72 71 70 68 74 73 72 71 71 69 68 68 72 72 72 70 68 66 65 64 RH 100100100100100 82 63 57 69 93 97 97100 74 61 57 69 84 87 93 93 Wind Dir SW SW SW SW SW N N N N N N N NE NE NE NE NE NE NE NE NE Wind Spd 1 1 1 1 1 0 1 1 1 1 0 0 1 2 4 5 4 4 3 2 1 Clouds FW FW SC B2 B1 B1 SC FW FW FW SC FW FW FW SC FW FW FW FW FW SC PoP 12hr 20 0 5 0 0 QPF 12hr 0.11 0 0 0 0 Rain shwrs S Tstms Obvis PF F Heat index 84 94 96 86 85 94 96 85 Max heat 94 96 94 96 Date 09/15 Wed 09/16/26 Thu 09/17/26 Fri 09/18/26 Sat 09/19/26 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 93 68 93 68 93 67 91 67 90 Temp 90 84 72 69 90 83 72 69 90 83 71 68 89 82 71 68 87 80 Dewpt 72 71 69 67 72 70 69 67 70 69 68 66 71 70 68 66 69 67 PWind Dir S SW E W E NE NE N W Wind Char LT LT LT LT LT LT LT LT LT Avg Clouds FW FW FW FW FW FW FW FW FW FW FW FW SC SC SC SC SC SC PoP 12hr 0 0 0 0 10 5 20 10 20 Rain shwrs S S Tstms S S $$ TNZ099-130800- Chattanooga Airport-Hamilton TN 35.03N 85.22W Elev. 688 ft 702 PM EDT Sat Sep 12 2026 Date 09/12/26 Sun 09/13/26 Mon 09/14/26 Tue EDT 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 70 94 70 95 70 Temp 80 75 72 71 71 82 91 93 86 77 73 72 71 85 93 95 88 79 74 72 71 Dewpt 72 73 72 71 71 73 71 70 71 71 70 70 70 71 71 70 71 70 70 69 69 RH 77 94100100100 74 52 47 61 82 90 93 97 63 49 45 57 74 87 90 93 Wind Dir S S N N N NW N N N N N N N NE NE NE NE NE NE NE N Wind Spd 2 1 0 0 0 1 2 4 3 1 1 1 1 3 6 6 5 4 3 2 0 Clouds SC FW FW SC FW FW FW CL CL CL SC SC CL CL FW FW FW FW FW FW FW PoP 12hr 10 0 0 5 0 QPF 12hr 0 0 0 0 0 Rain shwrs Tstms Obvis PF Heat index 84 87 98 99 91 90100102 94 Max heat 87 98 99 85 100 102 90 Date 09/15 Wed 09/16/26 Thu 09/17/26 Fri 09/18/26 Sat 09/19/26 EDT 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 95 70 95 69 96 69 95 69 93 Temp 92 87 75 71 93 88 74 70 93 87 74 70 93 87 74 70 91 85 Dewpt 71 70 68 66 69 69 66 64 66 66 65 65 68 67 67 67 68 67 PWind Dir SE S SE S SE SE NE NE W Wind Char LT LT LT LT LT LT LT LT LT Avg Clouds CL FW CL CL CL FW FW FW CL FW FW FW FW FW FW FW FW FW PoP 12hr 0 0 0 0 5 5 20 10 30 Rain shwrs S C Tstms S S $$ NCZ060-130800- Tusquitee RAWS-Forestry-Cherokee NC 35.07N 84.12W Elev. 1600 ft 702 PM EDT Sat Sep 12 2026 Date 09/12/26 Sun 09/13/26 Mon 09/14/26 Tue 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 88 63 91 65 Temp 73 70 68 66 65 77 86 86 75 69 66 64 63 79 88 90 80 70 68 67 65 Dewpt 71 70 68 66 65 72 70 69 69 68 66 64 63 70 70 69 70 69 67 65 64 RH 93100100100100 85 59 57 82 97100100100 74 55 50 72 97 97 93 97 Max/Min RH 100 55 100 49 100 Wind Dir N N N N N NW NW NW NW N N N N N N N N N E E E Wind Dir Deg 0 0 0 0 0 30 30 31 31 0 0 0 0 34 34 34 34 0 11 11 11 Wind Spd 0 0 0 0 0 2 5 5 2 0 0 0 0 1 4 5 2 0 1 4 5 Clouds FW SC B1 B2 B2 B1 SC FW FW FW SC SC B1 FW FW FW FW FW FW FW SC Clouds (%) 24 47 58 74 77 51 44 17 6 8 32 44 61 6 14 6 6 18 15 20 36 Vsby 10 7 7 7 7 10 10 10 10 10 8 7 PoP 12hr 20 0 0 5 0 QPF 12hr 0.01 0 0 0 0 Rain shwrs S Tstms Obvis PF PF PF Heat index 91 90 93 95 83 Max heat 91 91 93 96 ChanceThunder 10 0 0 5 0 Max Mix Hgt AGL Mix Hgt 4200 5400 Max Vent Rt 39100 42900 T Wind Dir NW N T Wind Spd 6 6 ADI 34 43 Max LVORI 10 10 Stability B F F B B G F B B G F Ceiling 7200 15900 7200 8000 7200 NONE NONE 8000 NONE 8000 NONE Sta Pres 27.90 27.91 27.95 27.93 27.92 27.96 27.99 27.98 27.97 28.01 28.09 Date 09/15 Wed 09/16/26 Thu 09/17/26 Fri 09/18/26 Sat 09/19/26 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 89 60 89 59 89 60 89 62 87 Temp 86 78 66 61 87 78 65 60 87 78 65 62 87 78 66 63 86 76 Dewpt 70 69 65 61 69 69 64 59 66 66 62 60 67 67 65 63 68 67 PWind Dir SE SE N SE N N NW NE SW Wind Char LT LT LT LT LT LT LT LT LT Avg Clouds FW FW FW FW FW FW FW FW FW FW FW FW SC FW FW SC SC SC PoP 12hr 5 0 10 0 10 0 20 10 40 Rain shwrs S S C Tstms 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 $$