719
FOUS52 KCHS 180936
PFMCHS
POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE CHARLESTON SC
536 AM EDT TUE AUG 18 2026
SCZ150-182000-
CHARLESTON INTERNATIONAL AIRPORT-CHARLESTON SC
32.91N 80.03W ELEV. 45 FT
536 AM EDT TUE AUG 18 2026
DATE TUE 08/18/26 WED 08/19/26 THU 08/20/26
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 101 78 99 78 98
TEMP 81 91 99100 91 84 81 79 80 91 97 98 89 82 80 79 80 92 96 96 86
DEWPT 73 75 74 75 77 76 75 74 74 74 72 73 74 76 76 76 78 75 73 74 75
RH 77 60 45 45 64 77 82 85 82 58 45 45 61 82 88 91 94 58 48 49 70
WIND DIR W NW W W SW SW W W NW N S S S S S S N S S S S
WIND SPD 8 8 8 9 9 6 4 4 3 4 6 9 8 4 3 2 0 4 9 11 10
CLOUDS FW FW FW SC SC SC FW FW FW FW SC FW SC FW CL CL CL FW SC FW FW
POP 12HR 20 10 20 5 5
QPF 12HR 0.03 0 0.06 0 0
SNOW 12HR 00-00 00-00 00-00
HEAT INDEX 102111114105 93 101106109 98 103106107 95
MAX HEAT 111 114 96 106 109 92 106 109
EXTREME HEAT W W W
DATE FRI 08/21/26 SAT 08/22/26 SUN 08/23/26 MON 08/24/26
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 78 97 77 95 75 95 75 95
TEMP 81 80 95 87 80 78 92 84 78 77 92 85 79 76 92 85
DEWPT 77 77 74 76 76 76 74 75 75 74 72 73 74 73 70 71
PWIND DIR S S SW SW SW SW SW SW
WIND CHAR LT GN LT LT LT LT LT LT
AVG CLOUDS FW FW FW SC SC SC SC SC B1 SC SC B1 B1 SC FW SC
POP 12HR 0 20 40 60 50 30 20 20
RAIN SHWRS S C S L C C C C S S S
TSTMS S C S L C S C C S S S
GAZ218-182000-
SAVANNAH INTERNATIONAL AIRPORT-INLAND CHATHAM GA
32.12N 81.20W ELEV. 50 FT
536 AM EDT TUE AUG 18 2026
DATE TUE 08/18/26 WED 08/19/26 THU 08/20/26
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 100 77 100 77 100
TEMP 81 91 99 99 92 84 81 78 78 90 98100 91 82 80 78 78 91 99 98 88
DEWPT 73 77 75 74 75 73 73 71 71 72 69 67 73 74 74 73 73 74 71 71 74
RH 77 64 47 45 58 70 77 79 79 56 39 34 56 77 82 85 85 58 41 42 63
WIND DIR W W W W SW SW W W W W W W S S SW SW SW SW S S S
WIND SPD 6 6 8 8 4 4 4 4 4 4 5 5 5 3 2 2 2 2 4 9 8
CLOUDS FW FW FW SC SC SC SC FW FW FW CL FW SC FW FW CL FW FW FW FW SC
POP 12HR 20 5 5 0 0
QPF 12HR 0.03 0 0 0 0
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS S
TSTMS S
HEAT INDEX 105112111103 90 97104105100 101108106 97
MAX HEAT 112 114 94 104 106 92 108 109
EXTREME HEAT W W W
DATE FRI 08/21/26 SAT 08/22/26 SUN 08/23/26 MON 08/24/26
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 77 99 75 95 75 96 75 96
TEMP 80 79 97 88 79 76 93 85 77 76 94 87 78 76 95 87
DEWPT 75 75 74 75 75 74 75 75 74 73 72 73 73 72 71 72
PWIND DIR S S SW SW SW SW SW SW
WIND CHAR LT LT LT LT LT LT LT LT
AVG CLOUDS FW FW FW SC B1 SC SC SC B2 SC SC SC B1 FW FW SC
POP 12HR 5 30 30 60 40 20 10 20
RAIN SHWRS C C L C S S S
TSTMS C C L C S S
SCZ150-182000-
CHARLESTON WATERFRONT-CHARLESTON SC
32.78N 79.94W ELEV. 10 FT
536 AM EDT TUE AUG 18 2026
DATE TUE 08/18/26 WED 08/19/26 THU 08/20/26
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 99 80 97 80 96
TEMP 82 92 98 97 89 85 82 81 81 91 96 95 88 84 82 81 82 91 94 93 85
DEWPT 76 79 80 80 79 79 78 76 76 78 78 78 78 79 79 79 79 79 79 79 79
RH 82 66 57 58 73 82 88 85 85 66 56 58 72 85 91 94 91 68 62 64 82
WIND DIR W W W SW SW SW W W NW SE SE S S S S S S S S S S
WIND SPD 5 6 8 10 9 5 3 3 2 3 8 9 5 3 3 2 2 4 9 11 9
CLOUDS FW FW FW SC SC SC SC FW FW FW SC FW FW FW CL CL FW FW FW FW FW
POP 12HR 20 20 10 0 5
QPF 12HR 0.05 0 0 0 0
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS S S
TSTMS S S
HEAT INDEX 109118117105 98 91 106112111102 95 92 90 92108111110 98
MAX HEAT 118 119 100 90 112 112 97 92 112 113
EXTREME HEAT W W W
DATE FRI 08/21/26 SAT 08/22/26 SUN 08/23/26 MON 08/24/26
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 80 95 79 93 77 93 78 93
TEMP 82 82 93 86 81 80 91 84 80 79 91 85 81 79 92 85
DEWPT 79 79 81 79 79 77 79 78 77 76 77 77 77 75 75 75
PWIND DIR S S SW SW SW SW SW SW
WIND CHAR LT GN LT GN LT GN LT LT
AVG CLOUDS FW FW FW SC SC SC SC SC B1 SC SC SC B1 SC FW SC
POP 12HR 0 10 40 60 50 30 30 20
RAIN SHWRS C S S L C C C S C S S
TSTMS C S S C C C C S C S S
SCZ148-182000-
BEAUFORT MARINE CORPS AIR STATION-BEAUFORT SC
32.48N 80.72W ELEV. 37 FT
536 AM EDT TUE AUG 18 2026
DATE TUE 08/18/26 WED 08/19/26 THU 08/20/26
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 100 77 99 79 99
TEMP 81 91 98 99 92 84 81 79 79 90 97 99 90 83 81 79 80 91 97 97 87
DEWPT 74 78 77 77 77 75 74 72 72 74 73 72 75 76 77 75 76 76 75 75 76
RH 79 66 51 50 62 74 79 79 79 60 46 42 62 80 88 88 88 62 50 50 70
WIND DIR W W W W SW SW W W W W SW S S S S SW S S S S S
WIND SPD 6 6 6 6 5 4 4 4 3 4 4 5 5 3 2 1 1 3 5 9 8
CLOUDS FW FW FW SC SC SC SC SC FW FW CL FW SC FW CL CL FW FW FW FW FW
POP 12HR 20 10 5 0 0
QPF 12HR 0.01 0 0 0 0
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS S
TSTMS S
HEAT INDEX 106114115106 92 99107109101 91 103110110 98
MAX HEAT 114 117 98 107 109 94 110 111
EXTREME HEAT W W W
DATE FRI 08/21/26 SAT 08/22/26 SUN 08/23/26 MON 08/24/26
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 79 97 77 95 76 95 76 95
TEMP 81 80 95 87 79 79 92 84 78 77 93 86 80 77 93 86
DEWPT 77 76 77 77 76 75 77 76 75 74 74 75 74 73 73 74
PWIND DIR S S S SW SW SW SW SW
WIND CHAR LT LT LT LT LT LT LT LT
AVG CLOUDS FW FW FW SC SC B1 SC SC B1 SC SC SC B1 SC FW SC
POP 12HR 0 20 30 60 30 20 20 20
RAIN SHWRS S C S L C S S S S
TSTMS S C S L C S S S S
SCZ043-182000-
WALTERBORO-INLAND COLLETON SC
32.91N 80.67W ELEV. 98 FT
536 AM EDT TUE AUG 18 2026
DATE TUE 08/18/26 WED 08/19/26 THU 08/20/26
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 99 74 98 75 99
TEMP 79 91 97 99 91 82 79 76 76 90 96 98 89 80 77 75 77 91 97 97 87
DEWPT 72 74 73 71 72 72 71 69 70 71 68 67 70 72 73 73 74 72 69 68 72
RH 79 58 46 41 54 72 77 79 82 54 40 37 54 77 87 94 90 54 40 39 61
WIND DIR W W W W NW N W W NW W SW S SE N N N N N S S S
WIND SPD 5 6 8 8 3 0 1 3 3 2 4 5 4 0 0 0 0 0 4 8 8
CLOUDS FW SC FW SC SC SC SC SC SC SC SC FW FW FW CL FW FW FW FW FW FW
POP 12HR 10 5 20 0 5
QPF 12HR 0 0 0.11 0 0
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS S
TSTMS S
HEAT INDEX 101107108 99 96101103 94 99103102 94
MAX HEAT 107 109 91 101 104 103 104
HEAT Y Y Y
DATE FRI 08/21/26 SAT 08/22/26 SUN 08/23/26 MON 08/24/26
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 75 97 74 93 72 94 73 94
TEMP 78 77 96 87 76 76 91 83 75 74 92 85 75 75 93 85
DEWPT 74 74 71 74 74 73 73 74 73 72 69 70 71 69 67 68
PWIND DIR S S S SW SW SW SW SW
WIND CHAR LT LT LT LT LT LT LT LT
AVG CLOUDS FW FW FW SC B1 SC SC SC B2 SC SC SC B1 SC FW FW
POP 12HR 0 40 40 60 30 20 20 20
RAIN SHWRS C C S S L C S S S
TSTMS C C S S L C S S S
GAZ099-182000-
METTER-CANDLER GA
32.40N 82.06W ELEV. 197 FT
536 AM EDT TUE AUG 18 2026
DATE TUE 08/18/26 WED 08/19/26 THU 08/20/26
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 99 74 98 74 99
TEMP 80 90 97 99 91 82 79 76 76 88 96 98 90 81 78 75 76 91 97 99 89
DEWPT 74 76 75 71 73 72 70 68 68 70 68 65 67 68 68 69 70 71 68 66 69
RH 82 64 50 41 56 72 74 76 76 55 40 34 47 65 71 82 82 52 39 34 52
WIND DIR W W W W W SW W W W W W W W NW SW W W NW W SW S
WIND SPD 5 8 9 9 4 3 3 3 4 6 8 6 3 1 1 2 2 3 5 4 3
CLOUDS FW FW FW SC SC SC SC B1 FW FW FW FW SC FW FW FW CL CL FW SC SC
POP 12HR 5 5 0 0 10
QPF 12HR 0 0 0 0 0
SNOW 12HR 00-00 00-00 00-00
HEAT INDEX 102110108100 93101101 93 98102103 94
MAX HEAT 110 110 92 101 102 102 104
HEAT Y Y Y
DATE FRI 08/21/26 SAT 08/22/26 SUN 08/23/26 MON 08/24/26
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 75 98 74 94 73 95 73 95
TEMP 79 77 96 87 76 76 92 84 76 75 93 87 77 74 93 87
DEWPT 72 73 72 74 74 74 74 74 73 72 70 69 70 70 68 68
PWIND DIR S SW SW SW SW W SW W
WIND CHAR LT LT LT LT LT LT LT LT
AVG CLOUDS SC FW FW SC B1 SC SC SC B1 SC SC SC SC SC FW FW
POP 12HR 5 40 40 50 20 20 5 10
RAIN SHWRS C C S C S S
TSTMS C C S C S S
PRODUCT KEY...
--- CLOUD COVER ---
CODE PERCENTAGE SKY COVER DAY/NIGHT
CL 0 TO <=5 PERCENT SUNNY/CLEAR
FW >5 TO <=25 PERCENT SUNNY/MOSTLY CLEAR
SC >25 TO <=50 PERCENT PARTLY CLOUDY
B1 >50 TO <=69 PERCENT MOSTLY CLOUDY
B2 >69 TO <=87 PERCENT MOSTLY CLOUDY
OV >87 TO 100 PERCENT CLOUDY
--- OBSTRUCTIONS TO VISIBILITY --- --- WEATHER COVERAGE ---
CODE TYPE CODE QUALIFYING TERM
F FOG S SLIGHT
PF PATCHY FOG C CHANCE
F+ DENSE FOG L LIKELY
PF+ PATCHY DENSE FOG O OCCASIONAL
H HAZE D DEFINITE
BS BLOWING SNOW
K SMOKE
BD BLOWING DUST
AF VOLCANIC ASHFALL
--- EXTENDED WIND FORECAST CHARACTER ---
12-HR MAX SUSTAINED
CODE WIND CHARACTER WIND SPEED
LT LIGHT < 8 MPH
GN GENTLE 8-14 MPH
BZ BREEZY 15-22 MPH
WY WINDY 23-30 MPH
VW VERY WINDY 31-39 MPH
SD STRONG/DAMAGING >=40 MPH
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