Point Forecast Matrices
Issued by NWS Knoxville/Tri Cities, TN
Issued by NWS Knoxville/Tri Cities, TN
993 FOUS54 KMRX 231319 PFMMRX Point Forecast Matrices National Weather Service Morristown TN 918 AM EDT Sat Aug 23 2025 TNZ017-232000- Tri Cities Airport-Sullivan TN 36.50N 82.41W Elev. 1536 ft 918 AM EDT Sat Aug 23 2025 Date Sat 08/23/25 Sun 08/24/25 Mon 08/25/25 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 84 66 81 59 77 Temp 76 80 80 75 69 68 66 66 71 76 79 74 67 65 61 60 68 73 74 69 Dewpt 68 68 68 68 66 66 65 66 69 70 68 67 65 62 60 59 58 55 53 53 RH 76 67 67 79 90 93 97100 93 82 69 79 93 90 97 96 70 53 48 57 Wind Dir S SW S S SE SE SE S SW W W W W NW NW NW NW W W W Wind Spd 2 4 4 2 2 1 1 2 3 4 5 3 2 2 1 2 4 8 9 5 Clouds B2 B1 B1 B1 B1 B1 B2 B2 B2 B1 B1 SC SC SC SC SC FW FW SC SC PoP 12hr 60 60 60 10 0 QPF 12hr 0.10 0.08 0.25 0 0 Rain shwrs S S C L C C C L L L L Tstms S C C S S S S C C C Heat index 83 83 Max heat 84 86 Date Tue 08/26/25 Wed 08/27/25 Thu 08/28/25 Fri 08/29/25 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 54 75 50 75 50 77 54 78 Temp 58 56 71 67 55 51 71 66 54 52 74 68 57 56 75 69 Dewpt 50 50 51 50 48 47 49 49 47 47 52 52 51 51 54 55 PWind Dir NW NW N N NE W E N Wind Char LT LT LT LT LT LT LT LT Avg Clouds SC B1 SC SC SC FW FW FW FW SC SC SC SC SC SC SC PoP 12hr 0 0 5 0 0 5 10 10 $$ TNZ071-232000- Knoxville McGhee Tyson Airport-Blount TN 35.80N 83.98W Elev. 979 ft 918 AM EDT Sat Aug 23 2025 Date Sat 08/23/25 Sun 08/24/25 Mon 08/25/25 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 87 69 84 62 80 Temp 79 84 83 76 73 71 70 70 75 81 81 77 72 68 64 62 71 77 78 72 Dewpt 71 71 71 71 70 70 69 69 71 71 70 68 66 63 60 59 59 57 56 55 RH 77 65 67 85 90 97 97 97 87 72 69 74 81 84 87 90 66 50 47 55 Wind Dir NE W S SE SW SW W SW SW W W W W N N N N N NW NW Wind Spd 1 2 3 3 2 2 2 2 2 3 4 3 2 2 2 2 5 5 8 5 Clouds B2 B1 B1 B1 B2 B2 B2 B2 B2 B1 SC SC FW SC SC FW FW FW FW SC PoP 12hr 70 60 50 5 0 QPF 12hr 0.02 0.22 0.07 0 0 Rain shwrs C L L C C C C C C C Tstms C L C S S C C C Heat index 89 88 85 85 Max heat 89 90 85 86 Date Tue 08/26/25 Wed 08/27/25 Thu 08/28/25 Fri 08/29/25 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 58 78 55 79 55 79 59 80 Temp 63 59 75 70 60 56 76 70 59 57 77 72 64 61 78 72 Dewpt 53 53 53 52 51 51 51 51 50 51 55 55 56 56 59 57 PWind Dir N N NE NE NE N NE N Wind Char LT LT LT LT LT LT LT LT Avg Clouds B1 B1 SC SC SC FW FW FW FW SC B1 SC SC SC SC SC PoP 12hr 0 0 5 0 0 5 10 10 $$ TNZ036-232000- Oak Ridge-Anderson TN 36.00N 84.24W Elev. 913 ft 918 AM EDT Sat Aug 23 2025 Date Sat 08/23/25 Sun 08/24/25 Mon 08/25/25 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 87 69 85 59 79 Temp 78 83 82 76 72 70 69 69 76 82 83 77 70 65 62 60 71 77 77 71 Dewpt 71 71 72 71 70 69 69 69 71 71 69 67 64 59 57 57 58 56 56 54 RH 79 67 72 85 93 97100100 85 69 63 71 81 81 84 90 63 48 48 55 Wind Dir S SW S S W SW W SW W W W NW NW N N N N NW NW NW Wind Spd 1 2 2 2 1 2 1 2 2 2 2 2 2 3 2 2 3 4 5 4 Clouds B2 B1 B1 B1 B2 B2 B2 B2 B1 SC SC FW FW FW FW FW FW FW SC SC PoP 12hr 80 60 40 0 0 QPF 12hr 0.02 0.08 0.05 0 0 Rain shwrs S C L C C C C C C C C Tstms C L C S S S C C C Heat index 88 87 86 87 Max heat 88 89 86 87 Date Tue 08/26/25 Wed 08/27/25 Thu 08/28/25 Fri 08/29/25 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 57 77 53 78 54 79 58 80 Temp 61 58 75 69 58 55 76 69 58 56 76 71 63 59 78 72 Dewpt 53 52 53 52 50 49 51 52 49 49 55 55 54 54 59 57 PWind Dir N N N NE NE S N N Wind Char LT LT LT LT LT LT LT LT Avg Clouds SC B1 SC SC SC FW FW FW FW SC B1 SC SC SC SC SC PoP 12hr 0 0 5 0 0 5 10 10 $$ TNZ099-232000- Chattanooga Airport-Hamilton TN 35.03N 85.22W Elev. 688 ft 918 AM EDT Sat Aug 23 2025 Date Sat 08/23/25 Sun 08/24/25 Mon 08/25/25 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 85 69 86 62 82 Temp 78 81 81 76 72 71 71 70 77 83 83 78 72 68 65 63 73 78 78 72 Dewpt 72 73 73 72 71 70 70 69 71 72 70 69 66 62 59 58 59 57 56 56 RH 82 77 77 87 97 97 97 97 82 70 65 74 81 81 81 84 62 48 47 57 Wind Dir SE S S SE S S SE S SW NW NW N N N N N N N N N Wind Spd 2 3 4 2 2 1 1 1 2 3 4 4 3 3 3 3 5 6 8 6 Clouds B1 B1 B1 B1 B1 B1 B1 B1 B1 SC FW FW FW FW FW CL CL FW SC SC PoP 12hr 80 40 40 0 0 QPF 12hr 0.04 0.03 0.03 0 0 Rain shwrs S C L C C S S C C C C Tstms S C L C S S S C C C Heat index 86 86 88 87 Max heat 86 87 88 90 Date Tue 08/26/25 Wed 08/27/25 Thu 08/28/25 Fri 08/29/25 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 61 78 57 79 57 81 61 80 Temp 63 61 75 69 61 58 77 70 61 58 77 72 64 62 77 72 Dewpt 55 54 56 55 53 51 53 54 52 51 58 58 57 57 60 60 PWind Dir N N N NE N SE NE E Wind Char LT LT LT LT LT LT LT LT Avg Clouds SC B1 B1 B1 SC FW FW FW FW SC SC SC SC B1 SC B1 PoP 12hr 0 5 5 0 0 5 10 20 Rain shwrs S Tstms S $$ NCZ060-232000- Tusquitee RAWS-Forestry-Cherokee NC 35.07N 84.12W Elev. 1600 ft 918 AM EDT Sat Aug 23 2025 Date Sat 08/23/25 Sun 08/24/25 Mon 08/25/25 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 83 64 83 58 79 Temp 75 80 78 71 67 65 64 64 73 78 78 71 66 63 60 58 70 77 75 67 Dewpt 69 69 69 68 67 65 64 64 69 69 68 67 66 62 59 57 59 56 54 53 RH 82 69 74 90100100100100 87 74 71 87100 97 96 96 68 48 48 61 Min/Max RH 69 100 69 100 47 Wind Dir SE SE SE SE E N N N NW NW NW NW NW NW NW N N NW NW NW Wind Dir Deg 12 15 15 12 10 0 0 0 29 29 30 29 32 32 32 33 33 32 32 32 Wind Spd 2 4 4 2 1 0 0 0 1 3 4 2 1 1 1 2 4 6 6 4 Clouds B2 B1 SC SC SC B1 B1 B1 B2 B1 SC FW FW SC SC SC FW CL FW SC Clouds (%) 74 65 44 42 50 53 55 62 70 51 40 22 20 26 33 45 12 5 17 33 Vsby 10 10 6 10 7 7 7 7 10 6 6 10 10 10 7 10 10 10 PoP 12hr 70 50 70 5 0 QPF 12hr 0.28 0.04 0.49 0 0 Rain shwrs S C L C S S C C L L Tstms C L C C C C Heat index 83 Max heat 83 83 ChanceThunder 60 30 50 5 0 Max Mix Hgt AGL Mix Hgt 4000 3400 5200 Max Vent Rt 35300 21000 62800 T Wind Dir SE W N T Wind Spd 8 5 11 ADI 31 20 63 Max LVORI 9 10 8 Stability B A F F B A G G B A Ceiling NONE NONE NONE NONE NONE NONE NONE NONE NONE NONE Sta Pres 27.89 27.86 27.89 27.89 27.87 27.85 27.90 27.93 27.94 27.98 Date Tue 08/26/25 Wed 08/27/25 Thu 08/28/25 Fri 08/29/25 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 54 77 50 78 52 79 56 79 Temp 58 56 74 64 55 51 75 65 55 54 76 67 59 57 75 67 Dewpt 51 51 53 52 50 48 51 52 50 50 55 56 55 54 58 57 PWind Dir N NW N N E S E SW Wind Char LT LT LT LT LT LT LT LT Avg Clouds SC B2 B1 SC SC FW FW FW FW B1 B1 B1 B1 B1 B1 B1 PoP 12hr 0 5 5 0 0 10 10 20 Rain shwrs S Tstms S This is an experimental product for planning and review purposes only, and is not to be substituted for an official fire weather spot forecast $$