774
FOUS54 KMRX 210627
PFMMRX
POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE MORRISTOWN TN
226 AM EDT FRI AUG 21 2026
TNZ017-212000-
TRI CITIES AIRPORT-SULLIVAN TN
36.50N 82.41W ELEV. 1536 FT
226 AM EDT FRI AUG 21 2026
DATE FRI 08/21/26 SAT 08/22/26 SUN 08/23/26
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 65 83 63 81
TEMP 68 68 76 82 80 72 69 67 66 67 73 81 82 75 68 65 63 64 71 78 80 72
DEWPT 67 67 70 72 71 69 68 67 66 67 69 69 68 66 66 65 63 64 64 61 59 59
RH 97 97 82 72 74 90 97100100100 87 67 63 74 93100100100 79 56 49 64
WIND DIR E SE SE SW W SW N N N SW W W W W SW SW W W W W NW W
WIND SPD 1 1 1 3 4 2 0 0 0 0 3 6 8 4 2 1 1 1 4 8 9 4
CLOUDS B1 B2 B1 SC SC SC SC SC SC B1 B1 SC SC SC SC SC SC SC FW FW FW FW
POP 12HR 80 40 30 30 5
QPF 12HR 0.45 0.01 0 0.01 0
RAIN SHWRS C C S C L C S C C
TSTMS C S S C L C S S
HEAT INDEX 86 84 85
MAX HEAT 89 87 85 87 82
DATE MON 08/24/26 TUE 08/25/26 WED 08/26/26 THU 08/27/26
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 82 57 82 62 85 65 84
TEMP 60 59 78 72 60 59 79 73 64 63 82 76 67 67 81 76
DEWPT 57 57 59 59 57 57 61 61 61 62 66 67 66 66 70 68
PWIND DIR NW W NE W SE SW S SW
WIND CHAR LT LT LT LT LT LT LT LT
AVG CLOUDS FW FW SC SC SC SC SC SC SC SC B1 B1 B1 B1 B2 B1
POP 12HR 5 5 5 10 10 30 50 50
RAIN SHWRS C C C C C
TSTMS C S C
TNZ071-212000-
KNOXVILLE MCGHEE TYSON AIRPORT-BLOUNT TN
35.80N 83.98W ELEV. 979 FT
226 AM EDT FRI AUG 21 2026
DATE FRI 08/21/26 SAT 08/22/26 SUN 08/23/26
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 88 69 88 67 87
TEMP 72 72 79 86 84 76 73 72 70 69 78 86 86 79 73 70 68 67 77 84 86 78
DEWPT 70 70 73 74 73 72 71 70 70 69 72 70 69 68 67 67 66 66 66 63 60 60
RH 93 93 82 68 70 87 93 93100100 82 59 57 69 81 90 93 97 69 49 42 54
WIND DIR S NE W W W N N N N N NW W W W SW SW N N N NW NW N
WIND SPD 1 1 1 3 4 3 0 0 0 0 1 4 6 4 2 1 0 0 2 4 6 4
CLOUDS B1 B2 B1 SC SC SC B1 SC B1 B1 SC SC FW FW SC FW FW FW FW FW FW FW
POP 12HR 40 20 5 20 5
QPF 12HR 0.02 0.05 0 0 0
RAIN SHWRS C S C C S S S
TSTMS S S C C S
HEAT INDEX 94 90 91 90
MAX HEAT 94 95 91 92 85 86
DATE MON 08/24/26 TUE 08/25/26 WED 08/26/26 THU 08/27/26
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 63 86 63 85 66 89 69 88
TEMP 67 64 83 77 66 64 82 78 69 67 85 80 72 69 84 79
DEWPT 60 60 61 61 60 60 64 63 64 64 68 68 68 68 71 69
PWIND DIR NE NW NE W S SW SW SW
WIND CHAR LT LT LT LT LT LT LT LT
AVG CLOUDS FW SC SC SC B1 SC SC SC SC SC SC SC SC B1 B1 B1
POP 12HR 5 5 20 30 10 50 50 50
RAIN SHWRS S S S C S C C C C C
TSTMS C C S C
TNZ036-212000-
OAK RIDGE-ANDERSON TN
36.00N 84.24W ELEV. 913 FT
226 AM EDT FRI AUG 21 2026
DATE FRI 08/21/26 SAT 08/22/26 SUN 08/23/26
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 68 89 65 87
TEMP 71 71 78 83 83 76 73 70 69 69 79 86 88 79 72 68 66 66 77 83 85 77
DEWPT 70 70 73 74 74 72 71 70 69 69 72 70 69 68 67 66 65 65 66 63 61 62
RH 97 97 85 74 74 87 93100100100 79 59 54 69 84 93 97 97 69 51 45 60
WIND DIR N E N SW W N NE N N N N W W W W NW NW NW N NW NW NW
WIND SPD 0 1 0 1 2 1 1 0 0 0 0 2 4 3 2 1 1 1 1 3 4 2
CLOUDS B2 B2 B1 SC SC SC SC FW SC SC SC FW FW SC FW FW FW FW FW FW FW FW
POP 12HR 40 10 5 5 5
QPF 12HR 0.03 0 0 0 0
RAIN SHWRS C S C C
TSTMS S S C C
HEAT INDEX 90 90 91 92
MAX HEAT 90 93 91 92 84 86
DATE MON 08/24/26 TUE 08/25/26 WED 08/26/26 THU 08/27/26
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 86 62 84 65 87 68 87
TEMP 64 62 82 75 65 63 80 76 68 66 83 78 70 68 83 78
DEWPT 60 59 62 62 60 60 64 65 64 64 69 69 68 68 72 70
PWIND DIR N W N SW W SW SW SW
WIND CHAR LT LT LT LT LT LT LT LT
AVG CLOUDS FW SC SC SC SC SC SC SC SC SC SC B1 SC B1 B1 B1
POP 12HR 5 5 20 30 10 40 50 50
RAIN SHWRS S S S C S C C C C C
TSTMS S C C S C
TNZ099-212000-
CHATTANOOGA AIRPORT-HAMILTON TN
35.03N 85.22W ELEV. 688 FT
226 AM EDT FRI AUG 21 2026
DATE FRI 08/21/26 SAT 08/22/26 SUN 08/23/26
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 92 71 93 69 91
TEMP 73 73 81 89 90 82 75 73 72 71 82 90 92 84 76 73 70 70 81 88 90 81
DEWPT 72 72 74 74 73 73 73 72 71 71 72 69 68 69 69 68 67 66 66 62 60 62
RH 97 97 79 61 58 74 94 97 97100 72 50 46 61 79 84 90 87 60 42 37 53
WIND DIR N N SW W W NW W N N N N NW NW NW NW NW NW N N N NW N
WIND SPD 0 0 1 3 5 3 1 0 0 0 2 3 8 3 1 1 2 2 3 5 8 5
CLOUDS B2 SC SC SC SC SC SC FW FW SC CL CL CL CL FW SC FW FW CL FW FW FW
POP 12HR 20 5 0 0 5
QPF 12HR 0 0 0 0 0
RAIN SHWRS S
TSTMS S
HEAT INDEX 86 98 98 87 87 95 96 88
MAX HEAT 98 98 95 96 88 91
DATE MON 08/24/26 TUE 08/25/26 WED 08/26/26 THU 08/27/26
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 66 90 66 89 69 90 70 90
TEMP 69 67 86 80 69 67 85 81 71 70 87 80 72 71 86 81
DEWPT 62 62 61 61 63 63 64 65 66 66 69 70 70 70 72 71
PWIND DIR N N N SE SE SW S SW
WIND CHAR LT LT LT LT LT LT LT LT
AVG CLOUDS FW SC SC SC SC SC SC SC SC SC SC SC SC B1 SC SC
POP 12HR 5 20 30 40 30 50 50 50
RAIN SHWRS S S C C C C C C C C C C
TSTMS S S S C C C C
NCZ060-212000-
TUSQUITEE RAWS-FORESTRY-CHEROKEE NC
35.07N 84.12W ELEV. 1600 FT
226 AM EDT FRI AUG 21 2026
DATE FRI 08/21/26 SAT 08/22/26 SUN 08/23/26
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 88 65 87 62 85
TEMP 69 68 80 86 83 73 70 68 67 67 77 85 85 75 69 66 64 63 76 82 84 74
DEWPT 68 68 73 73 73 71 70 68 67 67 71 69 68 66 66 65 64 63 65 62 60 61
RH 97100 79 65 72 93100100100100 82 59 57 74 90 97100100 69 51 44 64
MIN/MAX RH 65 100 55 100 43
WIND DIR N N N SW W N N N N N NW NW NW NW NW N NW NW NW NW NW N
WIND DIR DEG 0 0 0 22 28 0 0 0 0 0 31 30 30 30 31 0 32 32 32 32 32 33
WIND SPD 0 0 0 3 3 0 0 0 0 0 3 5 6 2 1 0 2 2 5 8 6 2
CLOUDS B2 B2 SC SC FW SC SC B1 B1 B1 FW FW CL CL FW SC SC SC FW CL FW FW
CLOUDS (%) 87 73 37 38 24 41 41 53 55 66 24 9 5 1 11 27 32 30 8 4 6 7
VSBY 10 7 10 6 10 10 10 7 7 7 10
POP 12HR 60 10 0 0 0
QPF 12HR 0.12 0 0 0 0
RAIN SHWRS C S L C
TSTMS S C C
HEAT INDEX 84 93 89 89 88
MAX HEAT 93 89 89 89 83 85
CHANCETHUNDER 50 10 0 0 0
MAX MIX HGT
AGL MIX HGT 3600 5200 6100
MAX VENT RT 21700 52300 61200
T WIND DIR SW NW N
T WIND SPD 4 9 9
ADI 22 52 62
MAX LVORI 10 10 10
STABILITY F A A F F B A G G B A
CEILING NONE NONE NONE NONE 5500 NONE 9800 13100 NONE 25000 NONE
STA PRES 27.92 27.92 27.85 27.86 27.90 27.88 27.88 27.90 27.95 27.95 27.95
DATE MON 08/24/26 TUE 08/25/26 WED 08/26/26 THU 08/27/26
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 85 59 84 62 86 64 86
TEMP 62 59 82 72 62 61 80 73 65 63 83 75 67 65 82 75
DEWPT 58 57 61 61 59 58 64 64 62 62 69 68 66 65 71 68
PWIND DIR N NW N W N SW SW W
WIND CHAR LT LT LT LT LT LT LT LT
AVG CLOUDS FW SC SC SC SC SC B1 SC SC SC B1 SC SC B2 B2 SC
POP 12HR 5 10 20 40 30 50 50 50
RAIN SHWRS S C C C C C C C C C
TSTMS S C C S 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
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page