Point Forecast Matrices
Issued by NWS Knoxville/Tri Cities, TN
Issued by NWS Knoxville/Tri Cities, TN
469 FOUS54 KMRX 070451 PFMMRX Point Forecast Matrices National Weather Service Morristown TN 1250 AM EDT Wed May 7 2025 TNZ017-072000- Tri Cities Airport-Sullivan TN 36.50N 82.41W Elev. 1536 ft 1250 AM EDT Wed May 7 2025 Date Wed 05/07/25 Thu 05/08/25 Fri 05/09/25 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 53 76 54 72 Temp 47 49 65 72 73 68 59 56 54 56 67 73 74 69 62 59 56 56 63 69 70 65 Dewpt 45 48 52 50 50 52 52 51 52 54 57 57 57 57 55 54 53 53 54 52 50 48 RH 93 96 63 46 44 57 78 83 93 93 70 57 55 66 78 83 90 90 72 55 49 54 Wind Dir E E NE W W W S SE E E W W NW NW NE N N NE N N N NE Wind Spd 1 2 1 3 4 2 1 1 1 1 2 4 5 4 2 2 3 4 5 6 9 6 Clouds B1 B1 SC B1 B1 B1 B2 B1 B2 B2 SC SC SC B1 B1 B1 B2 B2 B2 B1 SC SC PoP 12hr 20 20 50 30 30 QPF 12hr 0.01 0.01 0.03 0.02 0 Rain shwrs S S S C C C C S S S S C C S Tstms C S S Obvis PF PF Date Sat 05/10/25 Sun 05/11/25 Mon 05/12/25 Tue 05/13/25 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 48 71 50 77 54 76 58 78 Temp 53 52 66 63 53 54 73 70 58 58 73 70 61 61 75 71 Dewpt 45 45 45 47 46 48 53 53 52 52 58 56 56 58 61 60 PWind Dir NE NE E E E E E SE Wind Char LT LT LT LT LT LT LT LT Avg Clouds B1 B1 B1 B1 B1 B1 B1 B1 B1 B2 B1 B1 B1 B1 B1 B1 PoP 12hr 20 30 30 30 30 50 50 60 Rain shwrs S S C C S C S C S C C C C C C L Tstms C S $$ TNZ071-072000- Knoxville McGhee Tyson Airport-Blount TN 35.80N 83.98W Elev. 979 ft 1250 AM EDT Wed May 7 2025 Date Wed 05/07/25 Thu 05/08/25 Fri 05/09/25 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 70 57 77 57 75 Temp 53 53 65 70 70 68 61 59 58 59 68 74 77 71 64 61 58 58 66 71 74 68 Dewpt 49 51 55 56 56 56 57 56 56 57 60 61 60 60 59 57 56 55 57 57 55 53 RH 86 93 70 61 61 65 87 90 93 93 76 64 56 68 84 87 93 90 73 61 51 59 Wind Dir NE NE NE W W N E SE E E W W NW NW E NE NE NE NE NE NE NE Wind Spd 2 3 3 3 3 2 1 1 1 1 2 4 4 3 2 2 3 5 5 6 9 6 Clouds B2 B2 B2 OV B2 B2 B2 B2 B2 B2 SC B1 SC B1 B1 B1 B2 B2 B2 B1 B1 B2 PoP 12hr 50 30 50 30 40 QPF 12hr 0.02 0.24 0.03 0.03 0.06 Rain shwrs S C C S S C C C C C C S S S S C C C Tstms S C S S Obvis PF PF PF Date Sat 05/10/25 Sun 05/11/25 Mon 05/12/25 Tue 05/13/25 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 53 72 53 77 57 76 59 80 Temp 58 55 68 65 57 55 73 71 62 60 73 71 63 61 75 73 Dewpt 50 50 53 52 50 51 58 58 56 57 61 61 59 59 64 62 PWind Dir NE NE NE NE E E E S Wind Char LT LT LT LT LT LT LT LT Avg Clouds B2 B2 B2 B2 B1 B1 B1 B1 B1 B2 B2 B1 B1 B1 B1 B1 PoP 12hr 30 40 30 40 40 60 50 70 Rain shwrs C C C C C C S C S C C L C C C L Tstms S S $$ TNZ036-072000- Oak Ridge-Anderson TN 36.00N 84.24W Elev. 913 ft 1250 AM EDT Wed May 7 2025 Date Wed 05/07/25 Thu 05/08/25 Fri 05/09/25 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 72 56 77 56 75 Temp 52 53 66 71 72 69 60 58 56 58 68 74 76 70 63 60 58 58 66 73 74 67 Dewpt 49 51 55 55 56 56 55 55 54 57 60 61 60 60 58 56 54 54 56 56 54 52 RH 89 93 68 57 57 63 84 90 93 96 76 64 58 71 84 87 86 86 70 55 50 59 Wind Dir NE NE NE S W NW NE N NE E SW SW W N N N NE NE NE NE NE NE Wind Spd 2 3 2 2 2 2 1 1 1 1 2 2 3 2 2 2 3 4 5 5 6 5 Clouds B2 B1 B2 B2 B2 B2 B1 B2 B2 B2 B1 B1 B1 B1 B1 B1 B2 B2 B2 B1 B1 B1 PoP 12hr 40 30 50 30 40 QPF 12hr 0.01 0.15 0.06 0.03 0.05 Rain shwrs S C C S S C C C C C C S S S S C C S Tstms S C S S Obvis PF Date Sat 05/10/25 Sun 05/11/25 Mon 05/12/25 Tue 05/13/25 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 52 73 53 77 58 77 59 80 Temp 57 55 68 65 56 55 74 71 61 60 74 70 63 61 76 72 Dewpt 49 49 53 52 50 50 57 58 56 56 62 61 59 59 64 62 PWind Dir NE NE NE NE NE E NE SE Wind Char LT LT LT LT LT LT LT LT Avg Clouds B1 B2 B2 B2 B1 B1 B1 B1 B1 B2 B2 B1 B1 B1 B1 SC PoP 12hr 30 40 20 30 30 60 40 70 Rain shwrs S C C C S S S C S C C L C C C L Tstms S S S $$ TNZ099-072000- Chattanooga Airport-Hamilton TN 35.03N 85.22W Elev. 688 ft 1250 AM EDT Wed May 7 2025 Date Wed 05/07/25 Thu 05/08/25 Fri 05/09/25 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 69 59 78 58 77 Temp 57 57 64 68 69 67 62 60 59 61 68 74 76 71 65 61 59 59 68 74 74 68 Dewpt 54 55 57 59 59 59 59 59 59 60 63 64 63 63 62 60 59 58 60 61 59 58 RH 90 93 78 73 70 75 90 96100 97 84 71 64 76 90 97100 96 76 64 59 70 Wind Dir N NE E SE E E NE NE NE E S SW W N N N N N NE NE NE NE Wind Spd 1 3 3 3 3 2 1 1 1 1 2 2 3 2 2 2 2 3 5 5 6 5 Clouds B2 B2 OV OV OV B2 B2 B2 B2 B2 B2 B2 B1 B2 B1 B1 B2 B2 B2 B1 B2 B2 PoP 12hr 70 40 50 40 50 QPF 12hr 0.20 0.04 0.10 0.05 0.07 Rain shwrs S C L L C C C C C C C C C S S S S C C C Tstms S S C S S C S S Obvis PF PF Date Sat 05/10/25 Sun 05/11/25 Mon 05/12/25 Tue 05/13/25 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 56 72 55 75 59 74 61 78 Temp 60 57 68 65 57 57 71 69 62 60 72 70 63 62 74 73 Dewpt 53 52 56 55 53 54 59 60 58 59 63 62 61 61 64 64 PWind Dir NE NE NE E E SE SE S Wind Char LT LT LT LT LT LT LT LT Avg Clouds B2 B2 B2 B2 B2 B1 B1 B1 B1 B2 B2 B2 B1 B1 B1 B1 PoP 12hr 40 50 30 50 50 70 50 70 Rain shwrs C C C C C S C C C C C L C C C L Tstms C S $$ NCZ060-072000- Tusquitee RAWS-Forestry-Cherokee NC 35.07N 84.12W Elev. 1600 ft 1250 AM EDT Wed May 7 2025 Date Wed 05/07/25 Thu 05/08/25 Fri 05/09/25 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 70 53 78 54 75 Temp 51 51 64 68 69 66 59 56 55 57 67 74 75 69 62 58 56 56 67 73 71 65 Dewpt 47 49 54 54 55 53 54 54 54 56 60 59 58 57 57 55 54 55 58 56 55 53 RH 86 93 70 61 61 63 83 93 96 96 78 59 55 66 84 90 93 96 73 55 57 65 Min/Max RH 59 96 54 96 55 Wind Dir N SE S S S SE N N N N W W W NW N NE NE N N N N N Wind Dir Deg 0 13 16 18 17 12 0 0 0 0 24 26 27 30 34 5 3 2 34 33 0 2 Wind Spd 0 2 1 3 3 1 0 0 0 0 1 3 3 2 1 1 1 1 2 4 4 3 Clouds B2 OV B2 OV B2 B2 B2 B2 B2 B2 B1 B1 B1 B1 B1 B1 B2 B2 B1 B1 B1 B2 Clouds (%) 78 90 78 89 87 82 74 77 81 76 58 61 58 58 61 63 75 81 69 63 67 75 Vsby 10 10 7 5 7 7 7 2 4 7 10 PoP 12hr 60 40 50 40 60 QPF 12hr 0.09 0.29 0.04 0.04 0.10 Rain shwrs C C L C C C C C S S C C C C S S C C L L C Tstms S S C S C Obvis PF PF ChanceThunder 20 10 30 30 10 Max Mix Hgt AGL Mix Hgt 2400 5000 4800 Max Vent Rt 17500 57700 56400 T Wind Dir SE W N T Wind Spd 5 9 9 ADI 15 50 49 Max LVORI 7 8 8 Stability D B B F F B B F D B B Ceiling NONE NONE NONE 7200 NONE NONE NONE NONE NONE NONE NONE Sta Pres 27.92 27.94 27.90 27.90 27.93 27.89 27.84 27.87 27.85 27.87 27.86 Date Sat 05/10/25 Sun 05/11/25 Mon 05/12/25 Tue 05/13/25 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 52 71 50 74 54 74 57 77 Temp 56 55 67 62 54 53 71 66 58 58 70 68 61 59 73 69 Dewpt 51 50 52 49 49 50 54 53 52 55 58 56 57 58 59 59 PWind Dir NE E E SE E SE SE S Wind Char LT LT LT LT LT LT LT LT Avg Clouds B2 B2 B2 B2 B1 B1 B1 B1 B1 B2 B2 B1 B1 B1 B1 B1 PoP 12hr 40 50 30 50 50 70 50 70 Rain shwrs C C C C C C C C C C L L C C L L Tstms C 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 $$