Point Forecast Matrices
Issued by NWS Knoxville/Tri Cities, TN
Issued by NWS Knoxville/Tri Cities, TN
288 FOUS54 KMRX 301827 PFMMRX Point Forecast Matrices National Weather Service Morristown TN 227 PM EDT Thu Jul 30 2026 TNZ017-310800- Tri Cities Airport-Sullivan TN 36.50N 82.41W Elev. 1536 ft 227 PM EDT Thu Jul 30 2026 Date 07/30/26 Fri 07/31/26 Sat 08/01/26 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 56 84 63 85 68 Temp 78 75 65 61 58 59 75 82 84 77 68 66 65 66 79 83 82 78 73 72 70 69 Dewpt 55 59 57 56 55 56 60 60 58 62 63 61 60 62 67 68 69 69 67 67 67 69 RH 45 58 75 84 90 90 60 47 41 60 84 84 84 87 67 61 65 74 81 84 90100 Wind Dir N N NE E NE E E W W N E E E E S SW S S SE SE SE SE Wind Spd 4 3 1 0 1 2 1 1 1 0 0 2 2 3 5 8 6 6 5 4 4 4 Clouds CL CL CL FW SC FW FW FW FW SC SC B1 B1 B1 B2 B2 B2 B2 B2 B2 OV OV PoP 12hr 0 0 0 30 70 QPF 12hr 0 0 0 0.04 0.05 Rain shwrs C C C C L L L Tstms S C C S S Obvis PF Heat index 86 85 Max heat 81 83 84 87 88 Date 08/02 Mon 08/03/26 Tue 08/04/26 Wed 08/05/26 Thu 08/06/26 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 82 67 82 67 84 68 85 69 86 Temp 81 77 69 69 80 78 69 69 81 79 70 70 82 80 71 71 83 81 Dewpt 72 71 68 69 71 71 68 68 71 72 68 69 72 73 70 69 73 73 PWind Dir S SE SW SE SW S SW SW SW Wind Char LT LT LT LT LT LT LT LT LT Avg Clouds B2 B1 B1 B2 B2 B1 B1 SC SC SC SC SC SC SC SC SC B1 SC PoP 12hr 90 40 40 10 40 10 60 20 40 Rain shwrs L D C S S C S C S L S S C Tstms S L C S S C S C S C S S C $$ TNZ071-310800- Knoxville McGhee Tyson Airport-Blount TN 35.80N 83.98W Elev. 979 ft 227 PM EDT Thu Jul 30 2026 Date 07/30/26 Fri 07/31/26 Sat 08/01/26 Sun EDT 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 61 89 67 86 71 Temp 85 80 71 67 64 64 79 87 89 84 75 71 69 70 80 84 84 80 76 74 73 72 Dewpt 60 62 59 59 58 59 61 63 63 65 67 66 64 64 68 71 73 71 71 71 71 71 RH 43 54 66 75 81 84 54 45 42 53 76 84 84 81 67 65 70 74 85 90 93 97 Wind Dir NE NE NE NE NE NE NE W W S SE S S S S SW S S S SW S S Wind Spd 6 4 3 3 4 3 2 2 2 2 2 1 2 2 4 8 9 6 5 4 5 4 Clouds CL CL FW SC SC SC SC SC SC B1 B1 B1 B1 SC B2 B2 B2 B2 B2 OV B2 B2 PoP 12hr 0 0 30 60 80 QPF 12hr 0 0 0 0.28 0.05 Rain shwrs C C L L D D L L L Tstms S C C C S Heat index 83 89 90 83 Max heat 85 88 90 89 90 Date 08/02 Mon 08/03/26 Tue 08/04/26 Wed 08/05/26 Thu 08/06/26 EDT 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 85 71 86 70 87 72 88 73 90 Temp 83 80 74 72 84 81 73 71 85 83 74 72 87 83 75 74 89 84 Dewpt 74 72 71 70 73 72 70 70 73 72 71 70 74 73 72 71 74 74 PWind Dir SW SW SW E SW S SW S SW Wind Char LT LT LT LT LT LT LT LT LT Avg Clouds B2 B1 B1 B2 B1 B1 B1 B1 SC SC SC SC SC SC SC SC B1 SC PoP 12hr 80 40 40 10 50 10 60 20 30 Rain shwrs L D C C C S C S L S S C Tstms S C C S C S C S C S S C $$ TNZ036-310800- Oak Ridge-Anderson TN 36.00N 84.24W Elev. 913 ft 227 PM EDT Thu Jul 30 2026 Date 07/30/26 Fri 07/31/26 Sat 08/01/26 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 61 87 67 84 70 Temp 85 79 70 67 64 64 78 86 87 82 73 71 69 69 78 81 82 78 74 73 72 71 Dewpt 60 62 59 58 57 59 62 63 64 66 66 65 65 66 69 72 74 72 72 71 71 71 RH 43 56 68 73 78 84 58 46 46 58 79 81 87 90 74 74 77 82 93 93 97100 Wind Dir NE NE NE NE NE NE E S S SW N N N S S S S S SW SW SW SW Wind Spd 4 2 2 2 3 3 2 1 1 1 0 0 0 1 3 6 6 5 4 3 4 4 Wind Gust 17 Clouds CL FW FW B1 SC FW SC SC SC B1 B1 B2 SC B1 OV B2 B2 B2 OV OV OV OV PoP 12hr 0 0 30 70 90 QPF 12hr 0 0 0 0.34 0.11 Rain shwrs L L L L D D D D L Tstms S C C C C Heat index 85 88 Max heat 85 87 88 85 88 Date 08/02 Mon 08/03/26 Tue 08/04/26 Wed 08/05/26 Thu 08/06/26 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 69 85 69 87 71 87 72 89 Temp 82 79 72 71 82 80 72 70 84 82 73 71 85 82 74 73 87 83 Dewpt 74 72 70 70 73 72 70 69 73 73 71 71 74 74 72 72 75 74 PWind Dir SW W SW N S W SW SW SW Wind Char LT LT LT LT LT LT LT LT LT Avg Clouds B2 B1 B1 B1 B1 B1 B1 B1 B1 SC SC SC B1 SC SC SC B1 SC PoP 12hr 80 30 50 20 50 10 50 10 30 Rain shwrs L D C C C S S C C C S C Tstms S C C S C S S C S C S C $$ TNZ099-310800- Chattanooga Airport-Hamilton TN 35.03N 85.22W Elev. 688 ft 227 PM EDT Thu Jul 30 2026 Date 07/30/26 Fri 07/31/26 Sat 08/01/26 Sun EDT 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 64 90 70 85 71 Temp 89 83 73 70 66 67 80 88 90 85 76 73 72 72 79 81 83 79 75 74 73 72 Dewpt 61 63 63 61 60 61 62 62 60 63 66 66 66 68 72 75 75 74 74 73 73 72 RH 39 51 71 73 81 81 54 42 37 48 71 79 81 87 79 82 77 85 97 97100100 Wind Dir N NE N N N N SE S S SE N N N S S S S S S S S S Wind Spd 6 4 3 3 3 2 1 2 2 1 0 0 0 2 5 9 9 8 6 5 5 5 Clouds CL FW FW SC SC SC SC SC FW SC B2 B1 SC SC B2 B2 B2 B2 B2 B2 B2 B2 PoP 12hr 0 0 50 90 90 QPF 12hr 0 0 0.01 0.72 0.47 Rain shwrs D D D D D D L L C Tstms S C L C C S S Heat index 87 90 Max heat 89 88 90 83 87 90 Date 08/02 Mon 08/03/26 Tue 08/04/26 Wed 08/05/26 Thu 08/06/26 EDT 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 86 71 86 71 88 72 89 73 91 Temp 83 80 73 72 83 81 73 73 84 82 74 74 87 84 75 74 89 86 Dewpt 75 73 72 72 74 74 72 72 74 74 73 73 75 75 73 73 75 75 PWind Dir SW SW SW SW S SW SW SW W Wind Char LT LT LT LT LT LT LT LT LT Avg Clouds B1 B1 B1 B1 B1 B1 SC SC SC SC SC SC SC SC SC SC SC SC PoP 12hr 60 30 40 10 50 20 50 20 30 Rain shwrs C L C S C S C S S C S S C Tstms S C S S C S C S S C S S C $$ NCZ060-310800- Tusquitee RAWS-Forestry-Cherokee NC 35.07N 84.12W Elev. 1600 ft 227 PM EDT Thu Jul 30 2026 Date 07/30/26 Fri 07/31/26 Sat 08/01/26 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 58 86 63 83 67 Temp 83 76 66 63 60 61 79 85 86 80 70 67 65 65 78 81 80 75 72 70 69 68 Dewpt 60 61 60 58 56 58 61 61 61 65 65 63 61 62 68 71 72 70 71 70 69 68 RH 46 60 81 84 87 90 54 45 43 60 84 87 87 90 71 72 77 84 97100100100 Max/Min RH 90 43 90 69 100 Wind Dir NW N N N N N SE S S N N N E E SE S S SE SE SE SE SE Wind Dir Deg 32 33 0 0 0 0 15 17 18 0 0 0 11 11 15 18 17 15 15 14 15 15 Wind Spd 5 3 0 0 0 0 1 2 2 0 0 0 1 2 3 6 4 4 3 3 3 3 Clouds CL CL FW SC SC SC SC SC SC B1 B1 B1 SC SC B1 B2 B2 B2 B2 OV OV OV Clouds (%) 2 3 10 37 40 41 29 28 35 51 63 55 42 47 69 85 78 84 85 90 93 90 Vsby 10 10 10 10 8 10 10 10 10 10 10 PoP 12hr 0 0 20 70 80 QPF 12hr 0 0 0 0.60 0.27 Rain shwrs C C L L D D D D L Tstms S C C C C S Heat index 85 84 Max heat 83 85 86 85 85 ChanceThunder 0 0 10 40 40 Max Mix Hgt AGL Mix Hgt 5600 2700 Max Vent Rt 22500 25200 T Wind Dir S S T Wind Spd 4 9 ADI 23 24 Max LVORI 7 6 Stability A G G A B F G C B D D Ceiling NONE NONE NONE NONE NONE NONE NONE NONE NONE NONE NONE Sta Pres 27.87 27.88 27.91 27.90 27.85 27.84 27.83 27.81 27.76 27.75 27.73 Date 08/02 Mon 08/03/26 Tue 08/04/26 Wed 08/05/26 Thu 08/06/26 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 82 67 83 67 84 68 85 69 87 Temp 79 77 70 68 81 77 70 68 81 78 70 69 83 79 70 70 85 80 Dewpt 73 71 69 68 73 71 69 68 73 72 70 69 73 73 70 70 74 73 PWind Dir S S SW S SW N W N W Wind Char LT LT LT LT LT LT LT LT LT Avg Clouds B2 B1 B1 B2 B2 B1 B1 B1 B1 B1 SC SC B1 SC SC SC B1 SC PoP 12hr 80 40 60 10 70 20 70 10 50 Rain shwrs L D C S S L S L S C L S C Tstms S L C S C 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 $$