Point Forecast Matrices
Issued by NWS Knoxville/Tri Cities, TN
Issued by NWS Knoxville/Tri Cities, TN
599 FOUS54 KMRX 171738 PFMMRX Point Forecast Matrices National Weather Service Morristown TN 138 PM EDT Tue Jun 17 2025 TNZ017-180800- Tri Cities Airport-Sullivan TN 36.50N 82.41W Elev. 1536 ft 138 PM EDT Tue Jun 17 2025 Date 06/17/25 Wed 06/18/25 Thu 06/19/25 Fri 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 67 84 67 83 65 Temp 85 79 71 70 68 70 76 81 82 80 72 69 67 69 76 78 79 73 69 67 66 65 Dewpt 70 71 69 68 67 68 70 71 70 70 69 67 66 68 71 70 69 68 67 66 65 65 RH 61 77 93 93 97 93 82 72 67 72 90 93 97 97 85 76 72 84 93 97 97100 Wind Dir SW SW S SW SW SW SW W SW SW S SW SW SW SW W W W SW SW SW W Wind Spd 8 5 3 2 4 5 10 11 11 6 3 3 4 5 10 11 10 6 3 2 1 2 Clouds B2 SC B1 B1 B1 B1 SC B1 B1 SC SC SC B1 B1 B2 B1 B1 B2 B2 B1 B2 B1 PoP 12hr 60 60 20 90 40 QPF 12hr 0.16 0.06 0.03 0.43 0.09 Rain shwrs D C C S S C C L S S S S C C D D C C Tstms L C S C C C S S S S C L L C Obvis PF PF Heat index 90 84 86 Max heat 91 87 89 82 84 Date 06/20 Sat 06/21/25 Sun 06/22/25 Mon 06/23/25 Tue 06/24/25 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 64 89 67 90 68 92 69 92 Temp 82 80 66 67 87 83 69 70 88 85 71 71 90 85 71 71 90 85 Dewpt 66 67 64 64 67 70 66 67 70 72 68 68 70 72 68 69 71 72 PWind Dir NW E SW SE SW SE N SE NE Wind Char LT LT LT LT LT LT LT LT LT Avg Clouds SC FW FW FW FW FW FW FW FW FW FW FW FW FW SC FW FW FW PoP 12hr 5 0 5 0 10 5 30 10 30 Rain shwrs C C Tstms C C $$ TNZ071-180800- Knoxville McGhee Tyson Airport-Blount TN 35.80N 83.98W Elev. 979 ft 138 PM EDT Tue Jun 17 2025 Date 06/17/25 Wed 06/18/25 Thu 06/19/25 Fri EDT 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 71 86 71 83 67 Temp 86 78 75 73 72 73 78 84 84 81 75 74 71 73 78 81 81 76 72 70 69 68 Dewpt 72 70 70 69 69 69 72 74 73 70 69 70 69 70 73 73 72 69 69 68 68 68 RH 63 76 84 87 90 87 82 72 70 69 82 87 93 90 85 77 74 79 90 93 97100 Wind Dir SW SW SW SW SW SW SW SW SW SW SW SW SW SW SW SW SW SW SW SW SW NW Wind Spd 12 10 8 6 8 10 11 11 11 9 6 6 8 10 11 11 9 5 2 2 1 1 Clouds SC B1 B1 B1 B1 B1 B1 SC SC SC FW SC B1 B2 B1 B1 B2 B2 B1 B1 B2 B2 PoP 12hr 70 60 40 90 30 QPF 12hr 0.19 0.11 0.05 0.63 0.02 Rain shwrs C L C C C C C C S S S C C L L D D C C Tstms C C S S S S C C S S S C C S C L L C Heat index 92 91 90 85 86 85 Max heat 94 91 93 86 87 Date 06/20 Sat 06/21/25 Sun 06/22/25 Mon 06/23/25 Tue 06/24/25 EDT 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 87 67 90 70 92 71 92 71 93 Temp 84 82 69 69 88 85 73 73 90 86 74 73 90 85 74 73 91 86 Dewpt 70 69 67 67 71 71 69 70 72 72 70 71 74 72 71 71 74 72 PWind Dir N E SW SE NE S NE SE NE Wind Char LT LT LT LT LT LT LT LT LT Avg Clouds SC FW FW FW FW FW FW FW FW FW FW FW FW FW FW FW FW SC PoP 12hr 10 0 10 5 20 10 30 20 40 Rain shwrs S C S C Tstms S C S C $$ TNZ036-180800- Oak Ridge-Anderson TN 36.00N 84.24W Elev. 913 ft 138 PM EDT Tue Jun 17 2025 Date 06/17/25 Wed 06/18/25 Thu 06/19/25 Fri 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 85 70 83 67 Temp 84 78 72 71 71 71 77 82 85 80 74 72 70 72 77 81 81 76 71 69 67 69 Dewpt 73 71 71 69 69 70 73 75 74 72 71 70 70 70 73 74 72 70 70 68 67 68 RH 70 79 97 93 93 97 87 79 70 77 90 93100 93 87 79 74 82 97 97100 97 Wind Dir SW SW SW SW SW SW SW SW SW SW SW SW SW SW SW SW SW SW SW W NW N Wind Spd 10 8 5 5 5 6 8 9 8 6 5 5 5 6 8 8 5 3 2 2 1 1 Wind Gust 18 17 16 17 17 18 17 16 18 Clouds B1 B2 B2 B2 B2 B2 B2 B1 SC SC SC B1 B2 B2 B2 B2 B2 B1 B1 SC B2 B1 PoP 12hr 70 60 40 90 30 QPF 12hr 0.20 0.11 0.07 0.54 0.01 Rain shwrs L L C C C C C L S S S C C D D D D C C Tstms L C S C S S C L S S S C C S C L L C Heat index 90 89 93 84 86 85 Max heat 90 89 93 86 87 Date 06/20 Sat 06/21/25 Sun 06/22/25 Mon 06/23/25 Tue 06/24/25 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 87 66 90 70 92 71 92 71 93 Temp 85 80 68 69 88 84 72 72 90 85 74 73 90 85 73 73 91 85 Dewpt 70 69 67 67 71 72 69 70 73 73 70 71 74 74 71 72 74 73 PWind Dir E NE S SW S SW E NE E Wind Char LT LT LT LT LT LT LT LT LT Avg Clouds SC FW FW FW FW FW FW FW FW FW FW FW FW FW FW SC FW FW PoP 12hr 10 0 5 0 20 5 30 10 40 Rain shwrs S C C Tstms S C C $$ TNZ099-180800- Chattanooga Airport-Hamilton TN 35.03N 85.22W Elev. 688 ft 138 PM EDT Tue Jun 17 2025 Date 06/17/25 Wed 06/18/25 Thu 06/19/25 Fri EDT 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 70 87 71 85 69 Temp 82 76 73 71 71 72 79 85 84 79 74 73 71 73 80 83 83 78 72 70 69 70 Dewpt 73 72 71 71 71 71 74 75 74 73 72 72 71 72 74 73 72 71 71 70 69 70 RH 74 87 93100100 97 85 72 72 82 93 97100 97 82 72 70 79 97100100100 Wind Dir S SW S S S S SW S S S S S S SW SW W W W SW W W NW Wind Spd 10 8 5 3 4 5 6 9 8 5 4 3 3 5 6 8 6 4 1 1 1 1 Wind Gust 20 Clouds B1 B2 B1 B1 B1 B1 B2 B1 B1 SC SC SC SC B1 B1 B1 B1 B1 SC B1 B1 B1 PoP 12hr 60 60 40 90 30 QPF 12hr 0.07 0.24 0.07 0.34 0.01 Rain shwrs C L S C C C S L C C C L L D D C C Tstms C C S C C S S L C C C C C L L C Heat index 87 94 91 85 89 88 Max heat 91 94 94 89 90 Date 06/20 Sat 06/21/25 Sun 06/22/25 Mon 06/23/25 Tue 06/24/25 EDT 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 90 69 92 72 94 73 93 73 95 Temp 87 83 71 71 90 86 74 74 92 87 75 75 91 87 75 75 93 86 Dewpt 70 69 69 69 70 72 70 72 73 73 73 73 74 74 73 73 73 72 PWind Dir N N S S SE SE E NE E Wind Char LT LT LT LT LT LT LT LT LT Avg Clouds SC FW FW FW FW FW FW FW FW FW FW FW FW FW FW FW FW FW PoP 12hr 10 0 10 5 20 10 40 20 40 Rain shwrs S S C S C Tstms S S C S C $$ NCZ060-180800- Tusquitee RAWS-Forestry-Cherokee NC 35.07N 84.12W Elev. 1600 ft 138 PM EDT Tue Jun 17 2025 Date 06/17/25 Wed 06/18/25 Thu 06/19/25 Fri 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 66 83 64 Temp 83 76 70 68 67 68 76 82 84 78 70 68 66 68 77 80 79 73 68 66 64 66 Dewpt 70 69 68 67 66 67 71 71 70 69 68 67 66 68 72 71 70 68 67 66 64 66 RH 65 79 93 97 97 97 85 69 63 74 93 97100100 85 74 74 84 97100100100 Max/Min RH 100 63 100 72 100 Wind Dir SW S S SE S S SW SW SW SW S S S SW SW W SW W W N N N Wind Dir Deg 21 19 18 15 16 19 22 22 22 20 17 18 19 20 23 24 23 25 27 0 0 0 Wind Spd 6 5 2 2 2 2 4 5 5 3 2 2 2 2 4 6 5 2 1 0 0 0 Clouds B1 B1 B2 B1 B1 OV B1 SC B1 SC SC SC B1 B2 B1 B2 B2 B2 B1 B1 B1 B2 Clouds (%) 56 53 74 62 66 91 68 45 69 46 41 43 58 79 64 71 73 73 66 63 69 70 Vsby 6 10 6 7 5 5 10 10 6 10 10 10 10 6 6 6 6 10 10 10 7 10 PoP 12hr 70 70 40 90 40 QPF 12hr 0.23 0.25 0.06 0.42 0.04 Rain shwrs L C L C C C C C L C C C C L L D D C C Tstms L C S S S S C C L C S C C S C D L C Obvis PF PF Heat index 87 86 88 83 Max heat 88 86 88 83 84 ChanceThunder 50 70 30 70 20 Max Mix Hgt AGL Mix Hgt 3300 2600 Max Vent Rt 60100 42300 T Wind Dir SW SW T Wind Spd 11 13 ADI 52 56 Max LVORI 6 9 Stability A F F B B G F B B MM MM Ceiling NONE NONE NONE NONE NONE NONE NONE NONE NONE MM MM Sta Pres 27.89 27.92 27.97 27.98 27.95 27.98 28.00 27.98 27.96 MM MM Date 06/20 Sat 06/21/25 Sun 06/22/25 Mon 06/23/25 Tue 06/24/25 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 87 63 90 65 90 66 90 66 92 Temp 84 80 65 66 88 82 68 68 89 80 68 68 89 79 69 68 91 80 Dewpt 67 67 64 65 67 69 66 67 70 70 67 68 71 71 68 68 69 70 PWind Dir NW E S SE SE E NE E SE Wind Char LT LT LT LT LT LT LT LT LT Avg Clouds SC FW FW FW FW FW FW FW FW SC FW FW FW SC SC FW SC SC PoP 12hr 20 5 20 10 30 20 50 20 40 Rain shwrs S S C S S C S C Tstms S S C 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 $$