235
FOUS54 KMRX 201812
PFMMRX
POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE MORRISTOWN TN
212 PM EDT THU AUG 20 2026
TNZ017-210800-
TRI CITIES AIRPORT-SULLIVAN TN
36.50N 82.41W ELEV. 1536 FT
212 PM EDT THU AUG 20 2026
DATE 08/20/26 FRI 08/21/26 SAT 08/22/26 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 67 85 65 84 63
TEMP 86 79 71 69 68 69 75 82 81 74 70 68 66 67 74 82 83 77 69 65 64 64
DEWPT 71 70 69 68 68 68 71 72 71 70 68 67 66 67 69 68 66 65 64 64 63 64
RH 61 74 93 97100 97 87 72 72 87 93 97100100 84 63 57 67 84 97 97100
WIND DIR W NW NE N E SE W W SW SW NE N N SW W W W W SW SW SW SW
WIND SPD 8 3 1 0 0 1 2 4 5 2 0 0 0 0 3 6 8 4 1 1 1 1
CLOUDS SC SC B2 B1 B2 B2 B1 B1 B1 SC SC SC B1 B2 SC SC FW SC SC SC SC SC
POP 12HR 60 50 30 10 20
QPF 12HR 0.09 0.03 0.23 0 0
RAIN SHWRS S C S C C C S S
TSTMS S C C C C S
HEAT INDEX 92 87 85 85 86
MAX HEAT 94 89 90 87 88
DATE 08/23 MON 08/24/26 TUE 08/25/26 WED 08/26/26 THU 08/27/26
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 58 82 58 85 62 87 66 87
TEMP 79 74 61 60 80 73 61 60 82 76 64 64 84 79 68 68 83 77
DEWPT 61 58 57 57 58 57 55 56 59 60 60 61 64 65 64 65 68 67
PWIND DIR W NW W NE W E SW S SW
WIND CHAR LT LT LT LT LT LT LT LT LT
AVG CLOUDS SC FW FW FW SC FW SC FW SC SC SC SC B1 SC SC SC B1 SC
POP 12HR 10 0 5 5 20 20 30 40 40
RAIN SHWRS S C C C C C
TSTMS C S C
TNZ071-210800-
KNOXVILLE MCGHEE TYSON AIRPORT-BLOUNT TN
35.80N 83.98W ELEV. 979 FT
212 PM EDT THU AUG 20 2026
DATE 08/20/26 FRI 08/21/26 SAT 08/22/26 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 70 89 69 89 67
TEMP 90 82 76 73 72 72 79 87 87 79 74 72 70 70 79 87 88 82 74 71 69 68
DEWPT 73 73 72 72 71 70 73 74 73 71 71 70 69 69 71 69 67 66 67 66 66 66
RH 58 74 87 97 97 93 82 65 63 77 90 93 97 97 77 55 50 58 79 84 90 93
WIND DIR W SW SE W SW SE W W W NW N N N N W NW W W SW N N N
WIND SPD 8 4 2 2 1 1 2 3 5 3 1 0 0 0 1 3 5 4 1 0 0 0
CLOUDS SC B2 B2 B2 B2 B1 SC SC SC SC SC SC B1 B2 SC FW FW FW FW FW SC FW
POP 12HR 80 20 20 5 10
QPF 12HR 0.21 0 0.02 0 0
RAIN SHWRS C D C C S S S
TSTMS C C C S S S
HEAT INDEX 98 87 95 94 91 91
MAX HEAT 101 95 96 91 92 81
DATE 08/23 MON 08/24/26 TUE 08/25/26 WED 08/26/26 THU 08/27/26
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 87 63 89 66 91 70 90
TEMP 84 80 67 64 84 78 67 64 86 81 70 67 88 83 73 71 88 82
DEWPT 64 61 60 59 61 60 60 59 62 62 63 64 67 67 68 67 70 68
PWIND DIR NW NE N NE W SE SW SW W
WIND CHAR LT LT LT LT LT LT LT LT LT
AVG CLOUDS FW FW FW SC FW SC SC SC SC SC SC SC B1 SC SC B1 SC SC
POP 12HR 5 5 20 20 20 10 30 50 40
RAIN SHWRS S S C C C C C
TSTMS C S C
TNZ036-210800-
OAK RIDGE-ANDERSON TN
36.00N 84.24W ELEV. 913 FT
212 PM EDT THU AUG 20 2026
DATE 08/20/26 FRI 08/21/26 SAT 08/22/26 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 70 89 67 89 65
TEMP 89 82 74 72 71 71 78 85 86 78 73 70 68 69 79 86 88 80 73 69 67 66
DEWPT 75 74 72 71 70 70 74 74 73 72 71 69 68 68 71 69 68 67 67 67 66 66
RH 64 77 93 97 97 97 88 70 65 82 93 97100 97 77 57 52 65 81 93 97100
WIND DIR W SW SW SW SW W N SW W N N N N N N W W NW NW NW NW N
WIND SPD 4 2 1 1 1 1 0 2 3 2 1 0 0 0 0 2 4 3 1 1 1 1
CLOUDS B1 B1 B1 B2 B2 B2 B1 SC SC SC FW FW SC SC SC FW FW FW FW FW FW FW
POP 12HR 80 30 10 0 5
QPF 12HR 0.25 0 0 0 0
RAIN SHWRS S D C C C S
TSTMS S C C C S
HEAT INDEX 99 88 93 93 90 92
MAX HEAT 99 93 97 90 92
DATE 08/23 MON 08/24/26 TUE 08/25/26 WED 08/26/26 THU 08/27/26
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 86 62 88 66 90 68 90
TEMP 83 78 65 63 82 76 65 64 83 78 68 68 86 81 71 69 86 80
DEWPT 64 62 60 59 62 61 58 59 63 64 63 63 68 69 68 68 71 70
PWIND DIR NW N N N S NE SW W W
WIND CHAR LT LT LT LT LT LT LT LT LT
AVG CLOUDS FW FW FW FW FW SC SC FW SC SC SC SC B1 SC SC B1 SC SC
POP 12HR 5 0 20 20 20 10 30 50 40
RAIN SHWRS S S S C C C C C
TSTMS S C S C
TNZ099-210800-
CHATTANOOGA AIRPORT-HAMILTON TN
35.03N 85.22W ELEV. 688 FT
212 PM EDT THU AUG 20 2026
DATE 08/20/26 FRI 08/21/26 SAT 08/22/26 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 73 93 70 93 69
TEMP 95 87 78 75 74 73 82 90 90 82 76 73 71 71 82 91 92 85 76 73 71 70
DEWPT 74 75 75 74 73 73 75 74 72 72 72 71 70 70 70 67 66 67 68 68 68 68
RH 51 68 91 97 97100 79 60 56 72 87 93 97 97 67 45 43 55 76 84 90 93
WIND DIR W E SE NW N N S S NW NW N NW NW N N NW NW NW NW NW NW NW
WIND SPD 5 3 1 1 0 0 1 3 5 4 2 1 1 0 2 3 6 3 1 1 1 1
CLOUDS SC SC B2 B2 B2 SC SC SC SC FW FW FW FW FW FW FW FW FW FW FW FW FW
POP 12HR 80 20 0 0 5
QPF 12HR 0.43 0.07 0 0 0
RAIN SHWRS L L C S S
TSTMS C C S S S
HEAT INDEX 106 96 89 99 97 87 86 94 95 88
MAX HEAT 106 89 99 101 94 96 84
DATE 08/23 MON 08/24/26 TUE 08/25/26 WED 08/26/26 THU 08/27/26
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 91 66 90 67 91 70 94 71 93
TEMP 88 83 70 67 87 81 70 68 88 83 72 71 90 85 74 72 89 83
DEWPT 64 62 62 61 61 61 62 61 63 64 65 66 68 69 70 69 71 70
PWIND DIR NW N N N S S SW SW W
WIND CHAR LT LT LT LT LT LT LT LT LT
AVG CLOUDS FW FW FW FW FW SC SC SC SC SC FW SC SC SC SC SC SC SC
POP 12HR 5 5 5 20 20 20 40 40 40
RAIN SHWRS S S S S C C C C C
TSTMS S S C C C
NCZ060-210800-
TUSQUITEE RAWS-FORESTRY-CHEROKEE NC
35.07N 84.12W ELEV. 1600 FT
212 PM EDT THU AUG 20 2026
DATE 08/20/26 FRI 08/21/26 SAT 08/22/26 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 68 89 65 87 62
TEMP 90 80 73 70 69 68 79 86 85 75 70 68 66 66 78 85 86 77 69 66 64 63
DEWPT 72 73 72 70 69 68 74 73 72 71 70 68 66 66 70 68 66 66 65 64 63 63
RH 56 79 97100100100 85 65 65 87100100100100 76 57 51 69 87 93 97100
MAX/MIN RH 100 63 100 51 100
WIND DIR NW N N N N N N W NW NW N N N N NW NW NW NW NW N N N
WIND DIR DEG 29 0 0 0 0 0 0 26 31 32 0 0 0 0 31 31 31 30 32 0 0 33
WIND SPD 3 0 0 0 0 0 0 3 4 1 0 0 0 0 2 5 6 2 1 0 0 1
CLOUDS FW SC B2 OV OV B1 SC FW SC SC FW B1 B1 B1 FW FW CL FW FW FW SC SC
CLOUDS (%) 16 44 70 92 91 62 39 25 33 27 16 58 68 65 24 10 5 8 14 19 27 32
VSBY 10 10 10 7 7 7 10 10 10 10
POP 12HR 80 50 5 0 0
QPF 12HR 0.42 0.04 0 0 0
RAIN SHWRS C C C C S
TSTMS C C S C S
HEAT INDEX 97 84 93 91 88
MAX HEAT 100 93 94 88 90
CHANCETHUNDER 30 40 10 5 5
MAX MIX HGT
AGL MIX HGT 3900 4900
MAX VENT RT 29200 47600
T WIND DIR W NW
T WIND SPD 6 9
ADI 29 49
MAX LVORI 10 10
STABILITY A D F A A F F B A G G
CEILING 25000 25000 25000 25000 25000 25000 9000 NONE 9700 13100 NONE
STA PRES 27.91 27.89 27.88 27.87 27.87 27.87 27.89 27.89 27.88 27.92 27.95
DATE 08/23 MON 08/24/26 TUE 08/25/26 WED 08/26/26 THU 08/27/26
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 60 87 63 89 65 88
TEMP 83 75 62 60 83 74 63 61 85 76 66 64 86 78 69 66 85 78
DEWPT 64 62 59 57 61 61 59 58 63 64 62 62 68 69 67 66 70 69
PWIND DIR NW N NW N W N SW N W
WIND CHAR LT LT LT LT LT LT LT LT LT
AVG CLOUDS FW FW FW FW SC SC SC SC B1 SC SC SC B1 SC SC SC B1 SC
POP 12HR 5 5 20 10 30 10 40 40 40
RAIN SHWRS C S S C C C C C
TSTMS C S S 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
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