336
FOUS54 KMRX 211827
PFMMRX
POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE MORRISTOWN TN
226 PM EDT FRI AUG 21 2026
TNZ017-220800-
TRI CITIES AIRPORT-SULLIVAN TN
36.50N 82.41W ELEV. 1536 FT
226 PM EDT FRI AUG 21 2026
DATE 08/21/26 SAT 08/22/26 SUN 08/23/26 MON
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 65 84 63 81 57
TEMP 80 72 69 67 66 67 73 81 83 76 68 66 64 64 72 79 79 73 64 60 58 58
DEWPT 70 69 68 67 66 67 69 69 68 67 66 65 64 64 63 61 58 58 57 56 56 56
RH 72 90 97100100100 87 67 61 74 93 97100100 73 54 49 59 78 87 93 93
WIND DIR W E N N N SW W W W W W SW W W W W W W W N N E
WIND SPD 3 2 0 0 0 1 3 6 9 4 2 1 1 1 4 9 9 4 0 0 0 0
CLOUDS SC SC SC SC B1 B2 B1 SC FW FW B1 SC SC B1 FW FW FW FW FW FW FW SC
POP 12HR 30 20 30 5 0
QPF 12HR 0.05 0.03 0 0 0
RAIN SHWRS D C S C
TSTMS L S S
HEAT INDEX 85 86
MAX HEAT 88 86 88 81 82
DATE 08/24 TUE 08/25/26 WED 08/26/26 THU 08/27/26 FRI 08/28/26
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 57 84 62 86 66 85 65 86
TEMP 79 73 60 59 81 75 64 64 83 78 68 66 82 77 67 67 83 78
DEWPT 58 57 55 55 60 60 60 61 65 66 66 66 69 68 66 66 69 67
PWIND DIR W NE NW E SW S SW W W
WIND CHAR LT LT LT LT LT LT LT LT LT
AVG CLOUDS SC SC SC SC SC SC SC FW SC B1 B1 B1 B2 B1 SC SC B1 SC
POP 12HR 0 5 5 20 30 50 50 20 20
RAIN SHWRS S C C C C C S S S S
TSTMS C C C S S
TNZ071-220800-
KNOXVILLE MCGHEE TYSON AIRPORT-BLOUNT TN
35.80N 83.98W ELEV. 979 FT
226 PM EDT FRI AUG 21 2026
DATE 08/21/26 SAT 08/22/26 SUN 08/23/26 MON
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 89 66 86 62
TEMP 85 78 74 71 70 70 79 87 88 82 74 70 68 67 77 84 85 79 70 66 64 63
DEWPT 72 72 71 70 69 69 71 70 69 68 68 67 66 66 65 62 61 60 60 59 59 59
RH 65 82 90 97 97 97 77 57 54 63 82 90 93 97 67 48 45 52 71 78 84 87
WIND DIR W N N N N N W W W NW W N N N N NW NW NW NE N N E
WIND SPD 5 3 0 0 0 0 1 4 6 4 2 0 0 0 1 4 5 4 1 0 0 1
CLOUDS FW FW SC FW SC B1 SC FW FW SC SC SC SC SC FW FW CL FW SC SC FW SC
POP 12HR 20 5 20 0 0
QPF 12HR 0.02 0 0 0 0
RAIN SHWRS C S
TSTMS C S
HEAT INDEX 91 92 92 85
MAX HEAT 94 92 92 85 86
DATE 08/24 TUE 08/25/26 WED 08/26/26 THU 08/27/26 FRI 08/28/26
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 87 63 88 66 90 69 88 68 89
TEMP 84 78 66 64 85 81 70 67 87 82 73 70 86 81 72 69 87 82
DEWPT 60 60 60 59 63 62 64 64 68 68 69 68 72 70 69 68 71 69
PWIND DIR NW NE N E SW SW SW S W
WIND CHAR LT LT LT LT LT LT LT LT LT
AVG CLOUDS SC SC B1 SC SC SC SC SC SC B1 B1 B1 B1 SC SC SC SC SC
POP 12HR 5 5 10 10 40 50 50 20 20
RAIN SHWRS C C C C C S S S S
TSTMS C C C S S
TNZ036-220800-
OAK RIDGE-ANDERSON TN
36.00N 84.24W ELEV. 913 FT
226 PM EDT FRI AUG 21 2026
DATE 08/21/26 SAT 08/22/26 SUN 08/23/26 MON
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 68 90 64 87 61
TEMP 86 79 72 70 68 68 79 86 87 79 72 68 65 65 77 83 85 77 67 64 62 62
DEWPT 73 72 71 70 68 68 72 70 69 68 68 66 65 64 65 62 61 61 60 59 59 59
RH 65 79 97100100100 79 59 55 69 87 93100 97 67 49 45 58 78 84 90 90
WIND DIR W N NE N N N N W NW W NW NW NW N N NW NW NW N N N N
WIND SPD 3 2 1 0 0 0 0 2 5 3 1 1 1 0 0 3 4 2 1 1 1 1
CLOUDS SC FW FW FW SC SC FW FW SC SC SC FW FW SC FW FW FW FW FW SC SC SC
POP 12HR 5 5 10 0 0
QPF 12HR 0 0 0 0 0
RAIN SHWRS C
TSTMS C
HEAT INDEX 93 91 91
MAX HEAT 93 91 94 84 86
DATE 08/24 TUE 08/25/26 WED 08/26/26 THU 08/27/26 FRI 08/28/26
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 87 62 87 66 89 68 88 67 89
TEMP 82 76 63 63 82 79 68 67 85 80 71 69 84 79 70 68 85 80
DEWPT 61 61 59 59 64 65 63 64 69 69 69 68 72 70 69 68 71 70
PWIND DIR NW N NW NE SW SW SW W W
WIND CHAR LT LT LT LT LT LT LT LT LT
AVG CLOUDS SC SC SC SC B1 SC SC SC SC B1 B1 B1 B1 SC SC SC SC SC
POP 12HR 5 5 10 10 40 50 50 20 30
RAIN SHWRS C C C C C S S S C
TSTMS C C S C S C
TNZ099-220800-
CHATTANOOGA AIRPORT-HAMILTON TN
35.03N 85.22W ELEV. 688 FT
226 PM EDT FRI AUG 21 2026
DATE 08/21/26 SAT 08/22/26 SUN 08/23/26 MON
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 93 68 91 65
TEMP 90 83 76 73 71 71 82 91 92 84 76 72 70 69 80 88 90 81 72 68 67 66
DEWPT 72 73 73 72 71 70 72 69 68 70 70 69 67 66 66 63 60 61 61 61 61 61
RH 56 72 90 97100 97 72 49 46 63 82 90 90 90 62 43 37 51 68 78 81 84
WIND DIR W N N N N N N NW NW NW NW N N N N NW NW N N N N N
WIND SPD 4 3 1 0 0 0 1 3 6 4 2 2 1 2 3 4 6 4 3 1 1 1
CLOUDS FW FW FW FW FW FW CL CL FW FW SC SC FW FW CL FW CL FW FW SC FW SC
POP 12HR 0 0 10 5 0
QPF 12HR 0 0 0 0 0
HEAT INDEX 97 89 87 96 96 88
MAX HEAT 97 96 96 89 90
DATE 08/24 TUE 08/25/26 WED 08/26/26 THU 08/27/26 FRI 08/28/26
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 90 66 90 70 91 71 90 70 91
TEMP 87 80 69 67 87 83 72 71 88 83 73 72 87 82 72 71 88 83
DEWPT 61 62 62 62 65 66 66 66 70 71 72 71 73 72 72 71 72 72
PWIND DIR N N W SW SW S SW SW SW
WIND CHAR LT LT LT LT LT LT LT LT LT
AVG CLOUDS SC SC SC SC SC SC SC SC SC B1 B1 B1 B1 SC SC SC SC FW
POP 12HR 10 20 30 20 40 50 50 20 30
RAIN SHWRS S S C S S C C C C C S S C C
TSTMS C S S C C S C S C
NCZ060-220800-
TUSQUITEE RAWS-FORESTRY-CHEROKEE NC
35.07N 84.12W ELEV. 1600 FT
226 PM EDT FRI AUG 21 2026
DATE 08/21/26 SAT 08/22/26 SUN 08/23/26 MON
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 65 88 63 85 58
TEMP 84 75 70 68 67 65 77 85 87 78 69 66 64 63 75 82 84 75 65 61 59 59
DEWPT 71 71 70 68 67 65 71 69 67 67 66 66 64 63 64 61 60 60 58 57 56 56
RH 65 87100100100100 82 59 52 69 90100100100 69 49 44 60 78 87 90 90
MAX/MIN RH 100 52 100 43 93
WIND DIR W NW N N N N NW NW NW NW NW N NW NW NW NW NW NW N N N N
WIND DIR DEG 27 29 0 0 0 0 29 30 30 30 32 0 32 31 32 31 31 32 0 0 0 0
WIND SPD 3 1 0 0 0 0 2 5 5 2 1 0 1 1 4 6 6 2 0 0 0 0
CLOUDS SC FW FW SC B1 B1 SC FW FW FW FW B1 SC SC FW CL CL FW FW SC SC SC
CLOUDS (%) 28 16 16 29 61 67 30 12 8 11 16 51 44 31 11 5 2 8 19 33 32 49
VSBY 10 10 10 7 7 7 10 10 10 10 10
POP 12HR 10 5 5 5 0
QPF 12HR 0 0 0 0 0
RAIN SHWRS C
TSTMS C
HEAT INDEX 89 89 90
MAX HEAT 90 89 90 83 85
CHANCETHUNDER 10 5 5 5 0
MAX MIX HGT
AGL MIX HGT 4300 6500
MAX VENT RT 41700 59700
T WIND DIR NW NW
T WIND SPD 6 8
ADI 42 60
MAX LVORI 10 10
STABILITY A G F B A F G B A G G
CEILING NONE NONE NONE NONE 9800 13100 NONE 25000 NONE NONE NONE
STA PRES 27.84 27.88 27.91 27.90 27.89 27.92 27.97 27.95 27.92 27.93 27.96
DATE 08/24 TUE 08/25/26 WED 08/26/26 THU 08/27/26 FRI 08/28/26
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 59 86 63 88 65 86 64 87
TEMP 83 72 61 61 83 75 66 64 84 77 68 66 83 76 67 65 84 76
DEWPT 60 61 58 58 64 65 63 63 69 69 68 66 72 70 67 65 71 69
PWIND DIR NW N W N SW SE W N NW
WIND CHAR LT LT LT LT LT LT LT LT LT
AVG CLOUDS SC SC SC SC B1 SC SC SC B1 B1 SC B2 B2 B1 SC SC B1 FW
POP 12HR 5 20 30 20 50 50 60 30 30
RAIN SHWRS S C S S C C C C L C S S C
TSTMS C S S C C 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
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