735
FOUS54 KMRX 191827
PFMMRX
POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE MORRISTOWN TN
226 PM EDT WED AUG 19 2026
TNZ017-200800-
TRI CITIES AIRPORT-SULLIVAN TN
36.50N 82.41W ELEV. 1536 FT
226 PM EDT WED AUG 19 2026
DATE 08/19/26 THU 08/20/26 FRI 08/21/26 SAT
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 85 66 84 65
TEMP 85 81 72 69 68 68 75 82 83 78 71 69 68 68 76 82 82 76 70 67 65 67
DEWPT 65 65 64 63 63 64 67 69 69 69 68 67 67 68 69 70 69 68 67 66 65 67
RH 51 58 76 81 84 87 76 65 63 74 90 93 97100 79 67 65 76 90 97100100
WIND DIR W S SE SE S SW SW W W NW E E E E SW W W W N N N N
WIND SPD 3 2 1 0 0 2 5 8 6 2 0 0 0 1 3 5 5 2 0 0 0 0
CLOUDS FW FW FW SC SC B2 B2 B1 FW SC SC B1 B1 B1 B1 B1 SC SC SC SC B1 B1
POP 12HR 10 40 50 50 30
QPF 12HR 0 0 0.05 0.07 0.01
RAIN SHWRS C S C S C S S S C C C C
TSTMS S C S C S S C C C
HEAT INDEX 86 87 86 85
MAX HEAT 88 87 89 88 88
DATE 08/22 SUN 08/23/26 MON 08/24/26 TUE 08/25/26 WED 08/26/26
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 84 63 83 60 84 61 86 64 88
TEMP 82 77 66 65 81 76 64 62 81 76 63 63 84 79 67 66 85 80
DEWPT 68 66 64 64 64 62 61 60 61 61 59 59 63 63 62 64 66 66
PWIND DIR W W W NW NW NE SW SE SW
WIND CHAR LT LT LT LT LT LT LT LT LT
AVG CLOUDS SC FW FW FW SC FW FW FW SC SC FW FW SC SC SC SC B1 SC
POP 12HR 10 10 10 5 5 5 10 20 30
RAIN SHWRS S S C
TSTMS C
TNZ071-200800-
KNOXVILLE MCGHEE TYSON AIRPORT-BLOUNT TN
35.80N 83.98W ELEV. 979 FT
226 PM EDT WED AUG 19 2026
DATE 08/19/26 THU 08/20/26 FRI 08/21/26 SAT
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 90 70 88 69
TEMP 89 85 78 75 73 71 80 88 88 82 77 74 72 72 81 87 85 80 75 72 71 69
DEWPT 65 65 65 65 65 66 70 71 72 71 71 70 69 70 72 72 72 71 70 69 68 69
RH 45 51 64 71 76 84 72 57 59 69 82 87 90 93 74 61 65 74 84 90 90100
WIND DIR NW S SW SW S SW SW W W SW SE SW S W W W W W N N N N
WIND SPD 2 2 2 1 2 4 5 5 5 3 2 1 1 1 2 3 4 3 0 0 0 0
CLOUDS SC FW FW FW B1 B1 B1 B1 FW SC B1 B2 B2 B2 B1 B1 B1 SC B1 SC B1 SC
POP 12HR 30 50 60 60 20
QPF 12HR 0 0.06 0.40 0.08 0.01
RAIN SHWRS C S L C C C C L L S S
TSTMS S S S S S S C C S
HEAT INDEX 83 94 95 86 85 94 91 83
MAX HEAT 92 84 94 95 83 94 94
DATE 08/22 SUN 08/23/26 MON 08/24/26 TUE 08/25/26 WED 08/26/26
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 89 67 88 65 88 66 90 69 91
TEMP 87 83 72 69 86 82 70 66 86 82 70 67 88 84 73 70 89 85
DEWPT 69 67 67 66 66 64 63 62 64 63 62 62 65 65 65 66 68 67
PWIND DIR W N N NE N NE W S SW
WIND CHAR LT LT LT LT LT LT LT LT LT
AVG CLOUDS SC FW FW FW SC FW FW FW SC SC FW FW SC SC SC SC B1 SC
POP 12HR 0 10 5 5 5 0 10 20 30
RAIN SHWRS S S C
TSTMS C
TNZ036-200800-
OAK RIDGE-ANDERSON TN
36.00N 84.24W ELEV. 913 FT
226 PM EDT WED AUG 19 2026
DATE 08/19/26 THU 08/20/26 FRI 08/21/26 SAT
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 89 69 88 68
TEMP 88 82 77 74 72 70 78 84 87 83 75 72 71 71 80 86 84 79 73 70 68 70
DEWPT 68 68 66 66 66 68 71 72 73 72 71 70 69 69 72 72 73 71 70 69 67 69
RH 52 63 69 76 81 93 79 67 63 70 87 93 93 93 77 63 70 77 90 97 97 97
WIND DIR SW S N W W W SW W W W N N NE SW SW SW W NW N N N N
WIND SPD 1 1 0 1 1 2 3 3 3 1 1 1 1 1 1 2 2 1 1 0 0 0
CLOUDS SC FW SC SC B1 B1 B2 B1 SC SC SC B2 B2 B1 B1 B1 SC SC SC SC SC SC
POP 12HR 40 50 60 60 10
QPF 12HR 0.06 0.03 0.38 0.06 0
RAIN SHWRS S C S S S L C C C C L L
TSTMS S S S S S S S S S C C
HEAT INDEX 92 85 90 94 88 84 92 90
MAX HEAT 95 82 90 94 92 92
DATE 08/22 SUN 08/23/26 MON 08/24/26 TUE 08/25/26 WED 08/26/26
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 89 66 88 64 87 65 89 68 91
TEMP 87 82 69 67 85 80 68 65 84 80 68 66 85 82 70 70 87 83
DEWPT 69 68 67 66 66 65 63 62 65 64 62 61 66 67 65 65 69 69
PWIND DIR NW N N N NW NE SW W SW
WIND CHAR LT LT LT LT LT LT LT LT LT
AVG CLOUDS SC FW FW FW SC FW FW FW SC SC FW FW SC SC FW SC B1 SC
POP 12HR 0 5 5 0 5 5 10 20 30
RAIN SHWRS S S C
TSTMS C
TNZ099-200800-
CHATTANOOGA AIRPORT-HAMILTON TN
35.03N 85.22W ELEV. 688 FT
226 PM EDT WED AUG 19 2026
DATE 08/19/26 THU 08/20/26 FRI 08/21/26 SAT
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 73 94 73 92 70
TEMP 94 89 80 77 74 74 84 92 92 85 79 76 74 74 83 91 89 82 76 74 72 71
DEWPT 66 67 67 67 67 68 71 72 72 72 73 72 72 71 73 72 72 72 72 71 70 71
RH 40 48 65 71 79 82 65 52 52 65 82 87 93 90 72 54 57 72 87 90 93100
WIND DIR N SE S S S N N W W NW NW N N NE W W W NW NW N N N
WIND SPD 2 2 1 1 1 2 2 4 4 3 1 0 0 1 1 3 4 3 1 0 0 0
CLOUDS FW FW SC B1 SC SC SC SC FW SC B1 B2 B1 SC B1 B1 SC SC SC SC FW FW
POP 12HR 20 30 50 60 10
QPF 12HR 0 0.05 0.16 0.06 0
RAIN SHWRS C S S L L L L
TSTMS C S S S C C
HEAT INDEX 97 92 89100100 91 89 99 96 87
MAX HEAT 97 87 100 101 87 99 99 84
DATE 08/22 SUN 08/23/26 MON 08/24/26 TUE 08/25/26 WED 08/26/26
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 93 70 92 68 91 69 93 71 94
TEMP 90 85 73 71 89 84 72 69 89 84 72 70 90 86 74 72 92 87
DEWPT 69 68 69 68 65 65 65 65 65 64 65 64 66 66 68 68 69 69
PWIND DIR NW N N N N N SW SW W
WIND CHAR LT LT LT LT LT LT LT LT LT
AVG CLOUDS FW FW FW FW FW FW FW FW FW SC FW FW FW SC FW FW SC SC
POP 12HR 0 5 5 0 10 5 20 20 20
RAIN SHWRS S S S S S
TSTMS S S
NCZ060-200800-
TUSQUITEE RAWS-FORESTRY-CHEROKEE NC
35.07N 84.12W ELEV. 1600 FT
226 PM EDT WED AUG 19 2026
DATE 08/19/26 THU 08/20/26 FRI 08/21/26 SAT
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 90 67 88 65
TEMP 88 79 73 70 68 68 80 88 88 79 73 70 69 67 80 87 85 76 71 68 67 65
DEWPT 66 66 65 63 62 63 70 71 71 71 70 68 67 67 71 72 72 70 69 67 66 65
RH 48 64 76 78 81 84 72 57 57 77 90 93 93100 74 61 65 82 93 97 97100
MAX/MIN RH 84 54 100 61 100
WIND DIR NW N N N N N NW W W N N N N N W W W N N N N N
WIND DIR DEG 31 0 0 0 0 0 30 28 28 0 0 0 0 0 27 27 27 0 0 0 0 0
WIND SPD 3 0 0 0 0 0 1 3 3 0 0 0 0 0 1 3 2 0 0 0 0 0
CLOUDS FW FW FW B1 SC SC SC SC SC FW B1 B1 B2 B2 SC B1 B1 SC SC B1 B1 B1
CLOUDS (%) 9 14 12 52 48 49 50 27 33 23 64 62 72 71 38 55 54 34 43 55 66 59
VSBY 10 10 10 9 7 7 10 10 10 10 10
POP 12HR 5 20 50 70 20
QPF 12HR 0 0 0.17 0.10 0.01
RAIN SHWRS S C C C C C L L S S
TSTMS S C S S C C S
HEAT INDEX 83 94 94 83 94 91
MAX HEAT 93 94 96 94 94
CHANCETHUNDER 5 20 30 40 20
MAX MIX HGT
AGL MIX HGT 3900 3800
MAX VENT RT 27300 26500
T WIND DIR NW W
T WIND SPD 6 5
ADI 27 27
MAX LVORI 5 10
STABILITY A F G A A F G B A F F
CEILING 18200 23500 NONE NONE NONE NONE NONE NONE NONE 6300 NONE
STA PRES 27.88 27.90 27.93 27.93 27.89 27.93 27.95 27.93 27.88 27.91 27.91
DATE 08/22 SUN 08/23/26 MON 08/24/26 TUE 08/25/26 WED 08/26/26
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 88 63 87 61 87 62 88 64 89
TEMP 85 78 67 64 84 77 65 62 84 77 66 63 86 79 68 65 87 79
DEWPT 69 67 65 63 65 64 62 60 64 64 62 61 66 66 65 64 69 68
PWIND DIR NW NW NW N NW N W N W
WIND CHAR LT LT LT LT LT LT LT LT LT
AVG CLOUDS SC FW FW FW SC FW FW SC SC SC FW FW SC SC FW SC B1 SC
POP 12HR 0 5 5 0 5 5 20 20 40
RAIN SHWRS S S S C
TSTMS 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
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