Point Forecast Matrices
Issued by NWS Knoxville/Tri Cities, TN
Issued by NWS Knoxville/Tri Cities, TN
815 FOUS54 KMRX 171840 PFMMRX Point Forecast Matrices National Weather Service Morristown TN 240 PM EDT Thu Apr 17 2025 TNZ017-180800- Tri Cities Airport-Sullivan TN 36.50N 82.41W Elev. 1536 ft 240 PM EDT Thu Apr 17 2025 Date 04/17/25 Fri 04/18/25 Sat 04/19/25 Sun 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 43 81 52 84 58 Temp 71 67 56 49 45 46 67 77 81 74 63 57 53 55 70 80 83 76 66 61 58 60 Dewpt 30 32 35 35 34 39 46 43 44 47 48 49 49 50 54 52 52 52 53 53 53 55 RH 22 27 45 58 65 76 47 30 27 38 58 75 86 83 57 38 34 43 63 75 83 84 Wind Dir W SE SE SE SE SE S SW SW S S S S S SW W W SW S S S SE Wind Spd 2 2 3 2 2 3 6 11 11 9 5 3 2 2 4 10 10 4 2 2 1 1 Clouds B1 B2 SC FW FW FW FW FW CL FW FW SC B1 B1 B1 B1 B1 B1 B1 B2 B2 B2 PoP 12hr 5 0 0 0 0 QPF 12hr 0 0 0 0 0 Date 04/20 Mon 04/21/25 Tue 04/22/25 Wed 04/23/25 Thu 04/24/25 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 84 59 81 56 75 52 81 57 80 Temp 81 77 63 60 80 71 62 57 72 70 55 54 78 74 60 59 77 73 Dewpt 58 58 55 56 56 56 56 56 54 52 50 52 55 55 55 56 59 57 PWind Dir SW SE SW SW W NE S SE S Wind Char LT LT GN LT LT LT LT LT LT Avg Clouds B2 B1 B2 B2 B1 B1 B2 B2 B1 B1 SC SC SC SC SC B1 B2 B1 PoP 12hr 10 5 40 40 30 10 30 20 50 Rain shwrs S C C C C C S C S C C Tstms S S $$ TNZ071-180800- Knoxville McGhee Tyson Airport-Blount TN 35.80N 83.98W Elev. 979 ft 240 PM EDT Thu Apr 17 2025 Date 04/17/25 Fri 04/18/25 Sat 04/19/25 Sun EDT 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 50 83 59 86 62 Temp 74 69 59 55 51 51 70 80 83 77 68 64 62 60 73 83 85 80 70 67 63 63 Dewpt 33 38 38 36 37 41 48 45 45 46 48 50 52 52 54 52 53 55 55 55 56 56 RH 22 32 45 49 59 68 45 29 26 33 49 60 70 75 51 34 33 42 59 65 78 78 Wind Dir W E S SW W W S SW SW S S S SW SW SW SW SW SW S S S S Wind Spd 3 3 3 3 3 3 10 17 14 10 9 8 6 6 11 13 12 5 4 2 2 2 Wind Gust 25 Clouds SC SC FW FW FW FW FW SC FW FW FW SC SC B1 B1 B1 B1 B1 B1 B2 B2 B2 PoP 12hr 0 0 0 0 0 QPF 12hr 0 0 0 0 0 Date 04/20 Mon 04/21/25 Tue 04/22/25 Wed 04/23/25 Thu 04/24/25 EDT 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 86 63 81 58 77 55 82 61 82 Temp 83 80 67 63 78 75 64 59 74 72 60 56 79 76 65 61 78 76 Dewpt 60 59 56 56 59 57 58 57 57 55 53 54 58 59 58 58 61 60 PWind Dir SW S SW SW NW E S SE SW Wind Char LT LT GN LT LT LT LT LT LT Avg Clouds B2 B1 B2 B1 B1 B1 B2 B2 B2 B1 SC SC SC SC B1 B2 B2 B2 PoP 12hr 5 5 50 50 30 10 30 20 50 Rain shwrs C C C C C C S C S C C Tstms S S S $$ TNZ036-180800- Oak Ridge-Anderson TN 36.00N 84.24W Elev. 913 ft 240 PM EDT Thu Apr 17 2025 Date 04/17/25 Fri 04/18/25 Sat 04/19/25 Sun 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 49 82 58 84 61 Temp 75 71 60 55 52 52 69 79 82 76 67 64 60 59 72 81 84 78 69 65 63 62 Dewpt 32 36 38 37 38 41 47 45 45 46 48 50 52 53 55 55 54 55 55 55 56 57 RH 21 28 44 51 59 66 45 30 27 34 50 60 75 80 55 41 36 45 61 70 78 84 Wind Dir S SE SE W W SW SW SW SW SW S SW SW SW SW SW SW SW SW SW SW SW Wind Spd 2 2 2 2 2 2 10 13 13 9 6 5 5 5 10 11 10 4 2 2 2 2 Wind Gust 20 26 25 20 19 16 21 Clouds SC SC CL FW FW FW FW SC FW FW FW SC B1 B1 B1 B1 B1 B1 B1 B2 B2 B2 PoP 12hr 0 0 0 0 0 QPF 12hr 0 0 0 0 0 Date 04/20 Mon 04/21/25 Tue 04/22/25 Wed 04/23/25 Thu 04/24/25 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 85 62 79 56 78 55 83 60 80 Temp 82 79 66 62 77 73 63 57 75 72 59 56 80 77 64 61 77 74 Dewpt 60 58 56 56 60 58 57 56 56 54 53 53 58 60 58 57 62 60 PWind Dir SW SW SW W SW NE S E SW Wind Char LT LT GN LT LT LT LT LT LT Avg Clouds B2 B1 B2 B1 B1 B1 B2 B2 B1 B1 SC SC SC SC B1 B2 B2 B2 PoP 12hr 5 10 50 40 30 10 30 20 50 Rain shwrs C C C C C C S C S S C C Tstms S S S S $$ TNZ099-180800- Chattanooga Airport-Hamilton TN 35.03N 85.22W Elev. 688 ft 240 PM EDT Thu Apr 17 2025 Date 04/17/25 Fri 04/18/25 Sat 04/19/25 Sun EDT 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 53 85 59 87 63 Temp 78 73 62 57 54 54 69 80 85 78 69 65 60 60 73 83 87 81 72 67 64 64 Dewpt 35 39 40 40 41 43 47 44 42 44 49 53 53 54 57 56 54 56 58 57 58 58 RH 21 29 44 53 61 66 45 28 22 30 49 65 78 81 57 40 32 42 61 70 81 81 Wind Dir S SE S S S S S S S S S S S S S S S S S S S S Wind Spd 6 5 4 4 4 5 10 13 11 6 5 5 4 4 8 10 9 4 2 2 2 2 Wind Gust 20 24 23 17 Clouds SC FW CL FW SC SC SC FW SC FW FW FW SC SC B1 B1 B1 B1 B2 B2 B2 B1 PoP 12hr 0 0 0 0 0 QPF 12hr 0 0 0 0 0 Date 04/20 Mon 04/21/25 Tue 04/22/25 Wed 04/23/25 Thu 04/24/25 EDT 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 86 63 81 59 81 58 84 61 82 Temp 84 80 68 64 80 75 64 60 78 75 60 60 82 78 65 62 79 77 Dewpt 59 57 57 58 61 61 61 58 57 56 56 56 60 60 61 60 62 62 PWind Dir S S SW W N NE S SE S Wind Char LT LT GN LT LT LT LT LT LT Avg Clouds B1 B2 B2 B1 B1 B1 B1 B2 B1 B1 SC SC SC SC B1 B2 B2 B1 PoP 12hr 0 10 50 50 30 10 30 20 40 Rain shwrs C C C C C C C S S C C Tstms S S S S S S $$ NCZ060-180800- Tusquitee RAWS-Forestry-Cherokee NC 35.07N 84.12W Elev. 1600 ft 240 PM EDT Thu Apr 17 2025 Date 04/17/25 Fri 04/18/25 Sat 04/19/25 Sun 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 47 81 52 85 58 Temp 76 68 58 53 48 49 67 77 81 74 64 59 55 53 70 80 84 77 67 63 60 59 Dewpt 29 32 34 34 35 39 45 43 42 45 47 49 50 50 52 49 50 52 53 53 54 55 RH 18 26 40 48 60 68 45 30 25 35 54 69 83 89 53 34 31 42 61 70 81 87 Max/Min RH 68 25 93 30 90 Wind Dir S S SE E E SE S S S SE SE SE SE SE S S S S SE SE SE SE Wind Dir Deg 18 16 12 11 11 12 17 18 18 15 15 15 14 14 18 18 19 17 15 15 14 14 Wind Spd 5 3 3 3 3 4 8 10 9 5 3 2 2 2 4 6 6 2 2 1 1 1 Wind Gust 18 19 16 Clouds SC FW FW FW FW FW FW FW FW FW FW FW SC SC B1 B1 B1 B1 B1 B2 B2 B2 Clouds (%) 40 22 6 10 12 10 12 17 8 19 12 22 35 46 55 54 51 65 63 73 77 77 Vsby 10 10 10 10 10 10 10 10 10 10 10 PoP 12hr 0 0 0 0 0 QPF 12hr 0 0 0 0 0 ChanceThunder 0 0 0 0 0 Max Mix Hgt AGL Mix Hgt 4800 4600 Max Vent Rt 98400 58100 T Wind Dir S S T Wind Spd 18 12 ADI 86 63 Max LVORI 3 5 Stability A G G B B G F B B MM MM Ceiling NONE NONE NONE NONE NONE NONE NONE NONE NONE MM MM Sta Pres 28.00 28.03 28.07 28.07 28.05 28.10 28.11 28.11 28.10 MM MM Date 04/20 Mon 04/21/25 Tue 04/22/25 Wed 04/23/25 Thu 04/24/25 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 84 58 81 57 78 54 81 57 80 Temp 81 77 63 59 78 74 62 57 75 71 58 55 78 75 61 58 77 73 Dewpt 55 52 53 53 54 53 56 56 54 53 52 53 55 55 55 56 57 56 PWind Dir S SE S SW NW E S SE S Wind Char LT LT LT LT LT LT LT LT LT Avg Clouds B2 B1 B2 B1 B1 B1 B2 B2 B2 B1 B1 SC SC SC B1 B1 B2 B2 PoP 12hr 5 5 40 50 40 10 40 20 50 Rain shwrs S C C C C C S C S S C C Tstms C S 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 $$