Point Forecast Matrices
Issued by NWS Knoxville/Tri Cities, TN
Issued by NWS Knoxville/Tri Cities, TN
770 FOUS54 KMRX 301732 PFMMRX Point Forecast Matrices National Weather Service Morristown TN 131 PM EDT Sat Aug 30 2025 TNZ017-310800- Tri Cities Airport-Sullivan TN 36.50N 82.41W Elev. 1536 ft 131 PM EDT Sat Aug 30 2025 Date 08/30/25 Sun 08/31/25 Mon 09/01/25 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 57 78 56 79 55 Temp 79 71 63 59 58 59 71 76 75 67 62 59 57 57 69 75 77 69 63 59 57 56 Dewpt 55 57 56 55 54 56 61 58 58 59 59 57 55 55 57 57 56 57 55 54 52 52 RH 44 61 78 87 86 90 71 54 55 75 90 93 93 93 66 54 48 66 75 83 83 86 Wind Dir N NE NE NE NE E SE E E E E E E E E NE NE E SE E E E Wind Spd 4 3 2 2 2 2 2 2 4 4 3 2 2 3 3 3 3 3 3 2 2 2 Clouds FW CL CL SC SC B1 B1 B1 B1 SC FW FW SC SC SC SC SC B1 B1 SC B1 B1 PoP 12hr 5 30 20 10 5 QPF 12hr 0 0.06 0 0 0 Rain shwrs S C S Tstms S C Obvis PF PF Date 09/02 Wed 09/03/25 Thu 09/04/25 Fri 09/05/25 Sat 09/06/25 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 75 57 75 57 76 56 73 50 76 Temp 72 67 60 58 71 67 61 59 73 67 60 57 69 63 55 52 72 66 Dewpt 56 58 57 55 59 59 58 57 62 60 58 55 55 53 51 49 52 52 PWind Dir S E S SE SW NW NW SW W Wind Char LT LT LT LT LT LT LT LT LT Avg Clouds B1 B1 B1 B1 B1 B1 SC B1 SC SC B1 B1 B1 SC FW FW FW FW PoP 12hr 20 20 40 30 50 30 20 5 5 Rain shwrs S S S S C C S C C C S S Tstms S S C $$ TNZ071-310800- Knoxville McGhee Tyson Airport-Blount TN 35.80N 83.98W Elev. 979 ft 131 PM EDT Sat Aug 30 2025 Date 08/30/25 Sun 08/31/25 Mon 09/01/25 Tue EDT 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 60 84 61 81 62 Temp 84 76 69 65 62 62 74 81 82 74 69 66 63 62 73 79 79 72 67 64 63 62 Dewpt 56 57 58 57 56 56 62 60 59 61 62 61 60 60 63 63 62 62 62 61 60 60 RH 38 52 68 75 81 81 66 49 46 64 78 84 90 93 71 58 56 71 84 90 90 93 Wind Dir N N NE N NE NE NW NW N SE E E E E NE N N E SE SE E E Wind Spd 5 5 4 3 3 2 2 2 3 4 3 2 2 2 2 3 4 3 2 2 2 2 Clouds FW FW FW FW SC SC SC B1 SC SC SC SC B1 B1 SC SC B1 B1 B1 B1 B2 B1 PoP 12hr 0 20 10 20 20 QPF 12hr 0 0 0 0 0 Rain shwrs S S S S S S Tstms S S S Date 09/02 Wed 09/03/25 Thu 09/04/25 Fri 09/05/25 Sat 09/06/25 EDT 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 78 62 78 62 78 57 75 54 80 Temp 76 70 64 63 75 71 65 63 76 70 63 58 73 67 58 55 76 69 Dewpt 62 62 61 60 63 62 61 60 64 62 59 56 56 56 54 53 54 54 PWind Dir NW E S S SW N NW NE N Wind Char LT LT LT LT GN LT LT LT LT Avg Clouds B1 B1 B1 B2 B1 B1 B1 SC SC SC B1 B1 SC SC FW FW FW FW PoP 12hr 30 30 40 40 30 20 10 5 5 Rain shwrs S C C C S C C S S C S Tstms C C S C $$ TNZ036-310800- Oak Ridge-Anderson TN 36.00N 84.24W Elev. 913 ft 131 PM EDT Sat Aug 30 2025 Date 08/30/25 Sun 08/31/25 Mon 09/01/25 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 60 84 60 81 61 Temp 83 75 68 64 62 62 74 81 82 74 67 64 62 62 72 79 77 71 66 64 63 62 Dewpt 58 58 56 55 54 55 60 60 58 59 62 61 60 60 63 64 63 62 62 61 60 61 RH 43 55 65 73 75 78 62 49 44 59 84 90 93 93 73 60 62 73 87 90 90 97 Wind Dir NE NE NE NE NE NE NE W N E NE NE NE NE E NW N NE NE N NE NE Wind Spd 2 3 3 3 2 2 2 1 2 2 2 2 1 2 2 2 2 2 1 1 1 1 Clouds FW FW FW SC B1 SC B1 B1 SC FW SC SC B1 B1 B1 B1 B1 SC B1 B1 B2 B2 PoP 12hr 0 10 5 30 20 QPF 12hr 0 0 0 0.01 0 Rain shwrs C C S S C Tstms C C Date 09/02 Wed 09/03/25 Thu 09/04/25 Fri 09/05/25 Sat 09/06/25 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 75 60 76 61 77 56 75 53 79 Temp 75 69 64 62 74 69 64 62 75 68 60 57 73 65 57 54 76 68 Dewpt 63 62 61 60 64 62 61 61 64 61 58 54 55 55 52 50 55 54 PWind Dir W NE S SW W NW NW NW N Wind Char LT LT LT LT LT LT LT LT LT Avg Clouds B2 B1 B1 B2 B2 B1 B1 B1 SC SC SC B1 SC SC FW FW FW FW PoP 12hr 30 30 40 40 40 20 10 5 5 Rain shwrs C C C C C C C S S C S Tstms S C C C $$ TNZ099-310800- Chattanooga Airport-Hamilton TN 35.03N 85.22W Elev. 688 ft 131 PM EDT Sat Aug 30 2025 Date 08/30/25 Sun 08/31/25 Mon 09/01/25 Tue EDT 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 62 86 63 83 64 Temp 85 79 70 66 64 63 76 83 83 75 69 67 65 64 75 80 80 74 68 66 65 64 Dewpt 56 59 59 59 59 59 63 61 59 62 64 64 63 62 62 62 61 63 63 63 61 61 RH 37 50 68 78 84 87 64 47 44 64 84 90 93 93 64 54 52 69 84 90 87 90 Wind Dir N N N N N N E E S SE E E SE SE SE S E E E E SE SE Wind Spd 5 5 3 2 2 2 2 2 3 3 2 2 2 2 3 4 4 3 2 2 2 2 Clouds FW FW SC FW FW SC SC SC B1 SC SC SC SC SC SC SC SC SC B1 B1 B1 B1 PoP 12hr 0 10 10 20 20 QPF 12hr 0 0 0 0 0 Rain shwrs S S S S S S S Tstms S S S Date 09/02 Wed 09/03/25 Thu 09/04/25 Fri 09/05/25 Sat 09/06/25 EDT 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 81 63 79 63 81 59 77 56 81 Temp 78 73 66 64 76 72 65 64 79 71 63 60 74 68 60 57 78 71 Dewpt 60 61 62 60 63 63 62 62 64 62 60 57 57 56 55 53 54 55 PWind Dir SE SE S S W N NW N N Wind Char LT LT LT LT LT LT LT LT LT Avg Clouds B1 B1 B1 B1 B1 B1 SC SC SC SC SC SC SC SC FW FW FW FW PoP 12hr 20 30 40 30 30 10 10 5 5 Rain shwrs S S S C C C C C Tstms S S C C S S $$ NCZ060-310800- Tusquitee RAWS-Forestry-Cherokee NC 35.07N 84.12W Elev. 1600 ft 131 PM EDT Sat Aug 30 2025 Date 08/30/25 Sun 08/31/25 Mon 09/01/25 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 58 82 57 81 56 Temp 80 71 64 61 59 59 72 78 75 68 64 61 59 58 70 77 75 67 62 60 58 57 Dewpt 55 57 60 60 58 58 63 58 58 59 61 59 57 56 59 58 59 60 59 58 55 54 RH 42 61 87 97 96 96 73 50 55 73 90 93 93 93 68 52 58 78 90 93 90 90 Max/Min RH 97 49 96 52 93 Wind Dir N NE E E E SE SE SE E E E E E E SE E N E E SE E E Wind Dir Deg 0 3 10 11 11 12 12 15 7 9 11 11 11 10 12 9 1 9 11 12 11 10 Wind Spd 3 2 1 1 1 1 2 2 3 2 2 2 2 2 2 2 3 2 2 1 2 2 Clouds FW SC SC SC SC B2 B1 SC B1 B1 SC B1 SC B1 SC SC SC B1 B1 B1 B1 B2 Clouds (%) 23 26 28 37 50 72 67 49 64 55 50 55 46 56 38 36 49 56 57 65 60 75 Vsby 10 10 10 10 8 8 10 10 10 10 10 10 PoP 12hr 10 30 10 20 10 QPF 12hr 0 0.08 0 0 0 Rain shwrs S S S S Tstms S S S S Obvis PF PF PF ChanceThunder 10 30 10 20 10 Max Mix Hgt AGL Mix Hgt 4700 5900 Max Vent Rt 16400 23500 T Wind Dir SE NE T Wind Spd 4 4 ADI 16 24 Max LVORI 8 6 Stability A G F A B F F A B F F Ceiling NONE NONE NONE NONE NONE NONE NONE NONE NONE NONE NONE Sta Pres 27.90 27.94 27.99 28.00 27.99 28.01 28.04 28.01 27.98 27.98 27.99 Date 09/02 Wed 09/03/25 Thu 09/04/25 Fri 09/05/25 Sat 09/06/25 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 79 57 77 57 79 55 75 51 79 Temp 76 67 61 58 74 67 60 58 76 66 58 55 73 63 55 52 76 65 Dewpt 57 59 57 55 59 59 58 58 62 61 58 55 56 54 52 50 51 52 PWind Dir SE E SE SE SW NW NW N NW Wind Char LT LT LT LT LT LT LT LT LT Avg Clouds B1 B1 B1 B2 B1 B1 SC B1 SC SC SC B1 B1 SC FW SC FW FW PoP 12hr 20 20 40 30 40 20 10 5 5 Rain shwrs S S S S C C S S C S Tstms 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 $$