424
FOUS52 KCHS 182136
PFMCHS
POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE CHARLESTON SC
536 PM EDT SAT JUL 18 2026
SCZ150-190800-
CHARLESTON INTERNATIONAL AIRPORT-CHARLESTON SC
32.91N 80.03W ELEV. 45 FT
536 PM EDT SAT JUL 18 2026
DATE 07/18/26 SUN 07/19/26 MON 07/20/26 TUE
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 79 95 78 94 78
TEMP 85 82 81 80 81 89 93 92 85 82 81 80 80 89 92 91 84 81 80 80 80
DEWPT 76 76 76 76 75 74 72 73 75 75 75 75 76 75 73 73 75 75 76 76 76
RH 75 82 85 88 82 61 51 54 72 79 82 85 88 64 54 56 74 82 88 88 88
WIND DIR S SW SW SW SW SW SW S S S SW SW SW SW S S S S S S SW
WIND SPD 13 11 10 9 10 12 14 17 13 11 9 8 6 10 13 16 12 11 10 9 9
WIND GUST 25
CLOUDS FW FW FW FW FW FW SC SC FW SC SC FW FW FW SC SC SC FW SC FW FW
POP 12HR 5 5 5 10 20
QPF 12HR 0 0 0 0 0
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS S S S S C
TSTMS S S S S
HEAT INDEX 94 98101101 94 99101100 92
MAX HEAT 102 93 101 103 92 102 102 90
HEAT
DATE 07/21 WED 07/22/26 THU 07/23/26 FRI 07/24/26 SAT 07/25/26
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 78 93 77 90 75 89 75 91
TEMP 91 86 81 80 91 86 79 78 88 83 77 77 87 82 77 77 89 84
DEWPT 74 76 76 76 75 77 76 76 75 76 75 75 74 75 75 75 73 75
PWIND DIR S S SW SW S E E SE SE
WIND CHAR BZ GN GN GN LT LT LT LT LT
AVG CLOUDS SC SC SC SC SC SC B1 B1 SC B1 B1 B1 B1 SC SC SC SC B1
POP 12HR 30 20 30 60 70 60 60 40 50
RAIN SHWRS C C S S C C L L L L L C C L C C C C
TSTMS C C S S C C C C S C C S C S S C
GAZ218-190800-
SAVANNAH INTERNATIONAL AIRPORT-INLAND CHATHAM GA
32.12N 81.20W ELEV. 50 FT
536 PM EDT SAT JUL 18 2026
DATE 07/18/26 SUN 07/19/26 MON 07/20/26 TUE
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 77 96 77 94 77
TEMP 86 82 80 78 79 89 94 94 86 81 80 78 79 89 92 91 85 81 80 79 79
DEWPT 76 75 75 73 74 74 73 74 74 74 74 73 74 75 75 75 75 75 75 74 75
RH 72 79 85 85 85 61 51 53 68 79 82 85 85 64 58 60 72 82 85 85 88
WIND DIR S SW SW SW SW SW SW S S S S SW SW S S S S S S S S
WIND SPD 9 8 5 5 4 8 9 11 10 6 4 3 3 6 10 12 10 8 6 5 6
CLOUDS SC FW FW CL CL FW FW FW FW SC FW CL CL FW SC SC SC SC FW FW SC
POP 12HR 10 10 5 30 10
QPF 12HR 0 0 0 0.02 0
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS C C
TSTMS C C
HEAT INDEX 96 98103105 94 99103102 94
MAX HEAT 106 93 103 106 91 103 105 90
HEAT
DATE 07/21 WED 07/22/26 THU 07/23/26 FRI 07/24/26 SAT 07/25/26
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 78 93 77 91 75 89 75 91
TEMP 91 87 80 79 92 87 80 79 89 85 78 77 88 83 78 76 89 84
DEWPT 76 75 75 75 77 76 75 76 77 76 75 75 76 75 75 75 76 75
PWIND DIR S S S S S SE E SE SE
WIND CHAR GN GN GN LT LT LT LT LT LT
AVG CLOUDS SC SC B1 SC SC SC B1 SC SC B1 B1 SC B1 B1 B1 SC SC B1
POP 12HR 50 20 30 50 70 50 60 30 50
RAIN SHWRS C S S C C C C L C C C L C C C
TSTMS C S S C C S C L C C S S C
SCZ150-190800-
CHARLESTON WATERFRONT-CHARLESTON SC
32.78N 79.94W ELEV. 10 FT
536 PM EDT SAT JUL 18 2026
DATE 07/18/26 SUN 07/19/26 MON 07/20/26 TUE
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 82 94 81 93 80
TEMP 85 83 83 82 83 90 92 91 86 84 82 82 83 89 91 90 85 83 82 82 82
DEWPT 78 78 77 77 77 77 78 77 77 77 77 77 77 79 78 77 77 77 77 77 78
RH 80 85 82 85 82 66 64 64 75 80 85 85 82 73 66 66 77 82 85 85 88
WIND DIR S SW SW SW SW SW SW S S SW SW SW SW SW S S S S S S SW
WIND SPD 12 11 11 10 9 12 16 17 13 11 10 8 8 10 13 14 11 11 11 10 10
CLOUDS FW FW FW FW FW FW SC FW FW SC SC SC FW FW SC SC SC FW SC FW SC
POP 12HR 5 5 10 10 30
QPF 12HR 0 0 0 0 0.02
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS S S C C C
TSTMS S S S S C
HEAT INDEX 96 93 92 90 92103107103 97 93 90 90 91104106103 96 92 90 91
MAX HEAT 105 95 92 107 107 95 92 106 106 94 91
HEAT
DATE 07/21 WED 07/22/26 THU 07/23/26 FRI 07/24/26 SAT 07/25/26
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 92 80 91 78 89 77 88 78 89
TEMP 90 86 82 82 90 85 81 80 87 83 79 78 86 82 80 79 88 84
DEWPT 79 78 77 78 79 79 78 78 79 78 76 77 78 77 76 77 78 77
PWIND DIR S S SW SW S E E SE SE
WIND CHAR BZ GN BZ GN GN LT GN LT GN
AVG CLOUDS SC SC SC SC SC SC B1 B1 B1 B1 B1 B1 B1 B1 B1 SC SC B1
POP 12HR 30 40 30 70 70 70 60 40 40
RAIN SHWRS C C C C C C L L L L L C L C C C C C
TSTMS C C C C C C C C C C C S S C S S C
SCZ148-190800-
BEAUFORT MARINE CORPS AIR STATION-BEAUFORT SC
32.48N 80.72W ELEV. 37 FT
536 PM EDT SAT JUL 18 2026
DATE 07/18/26 SUN 07/19/26 MON 07/20/26 TUE
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 79 95 79 94 79
TEMP 86 82 82 80 81 90 94 93 86 82 81 80 81 90 93 92 85 82 81 80 81
DEWPT 77 77 76 74 75 75 75 75 75 75 75 74 75 76 76 75 75 76 76 75 76
RH 75 85 82 82 82 62 54 56 70 79 82 82 82 64 58 58 72 82 85 85 85
WIND DIR S S SW SW SW SW SW S S S SW SW SW SW S S S S S S S
WIND SPD 10 10 8 8 8 10 11 12 10 9 6 5 3 8 11 12 10 10 9 8 8
WIND GUST 21 20
CLOUDS FW FW FW FW FW FW FW FW FW SC SC CL CL FW FW SC SC SC SC FW FW
POP 12HR 5 5 10 20 20
QPF 12HR 0 0 0 0 0
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS S S S S S
TSTMS S S S
HEAT INDEX 97 90 101106105 95 102106103 94
MAX HEAT 106 93 106 107 92 106 106 92
HEAT
DATE 07/21 WED 07/22/26 THU 07/23/26 FRI 07/24/26 SAT 07/25/26
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 79 93 78 92 76 90 76 91
TEMP 91 87 82 80 92 87 81 79 89 85 79 77 88 84 79 78 89 85
DEWPT 77 76 75 76 78 77 76 76 78 77 75 75 77 76 75 75 76 76
PWIND DIR S S S S S SE E SE SE
WIND CHAR GN GN GN GN LT LT LT LT LT
AVG CLOUDS SC SC B1 SC SC SC B1 SC SC B1 B1 B1 SC B1 B1 SC SC B1
POP 12HR 40 10 30 60 70 60 60 30 40
RAIN SHWRS S C S C C L C L L C C L C S C C
TSTMS S C S C C C S L C C S S C
SCZ043-190800-
WALTERBORO-INLAND COLLETON SC
32.91N 80.67W ELEV. 98 FT
536 PM EDT SAT JUL 18 2026
DATE 07/18/26 SUN 07/19/26 MON 07/20/26 TUE
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 75 95 75 94 75
TEMP 86 79 77 76 77 88 93 93 86 80 78 76 77 88 92 92 85 79 77 76 77
DEWPT 75 75 74 73 73 73 70 70 72 73 73 72 73 73 71 71 72 73 74 73 74
RH 70 88 90 90 87 61 47 47 63 79 85 87 87 61 51 51 65 82 90 90 90
WIND DIR S S SW SW SW SW SW SW S S S SW SW SW S S S S S S S
WIND SPD 8 6 5 6 8 10 11 11 9 8 4 4 4 8 10 11 9 8 5 5 6
CLOUDS SC FW FW FW FW FW FW FW FW FW FW FW FW FW FW SC SC SC SC FW FW
POP 12HR 10 10 5 20 10
QPF 12HR 0 0 0 0 0
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS S S
TSTMS S S
HEAT INDEX 95 96 99 99 92 96 99 99 91
MAX HEAT 101 99 102 100 100
HEAT
DATE 07/21 WED 07/22/26 THU 07/23/26 FRI 07/24/26 SAT 07/25/26
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 76 93 74 90 72 89 72 91
TEMP 91 86 78 78 91 86 77 76 87 84 75 74 87 83 74 74 89 84
DEWPT 72 74 73 74 74 75 74 74 74 74 73 73 72 73 72 73 72 73
PWIND DIR S S SW S S E E SE SE
WIND CHAR GN GN GN LT LT LT LT LT LT
AVG CLOUDS SC SC B1 SC SC SC B1 SC SC B1 B1 B1 B1 SC SC SC SC B1
POP 12HR 30 10 40 60 70 50 60 40 40
RAIN SHWRS C S C L L C L C C C L C S C C
TSTMS C S C C S S C C C S S C
GAZ099-190800-
METTER-CANDLER GA
32.40N 82.06W ELEV. 197 FT
536 PM EDT SAT JUL 18 2026
DATE 07/18/26 SUN 07/19/26 MON 07/20/26 TUE
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 74 94 74 93 75
TEMP 85 79 77 75 76 86 92 93 86 79 77 75 76 86 91 91 84 79 77 76 77
DEWPT 76 75 74 73 74 75 73 72 74 73 73 72 74 75 73 73 74 75 75 74 75
RH 75 88 90 94 94 70 54 51 68 82 87 90 94 70 56 56 72 88 94 94 94
WIND DIR SW S SW SW SW SW SW SW SW S S S S SW S S S S S S S
WIND SPD 3 2 3 4 4 8 9 8 3 3 3 3 3 6 8 8 5 4 3 4 5
CLOUDS SC SC SC CL FW FW FW FW FW FW FW SC CL FW FW SC SC FW SC FW FW
POP 12HR 20 10 10 30 10
QPF 12HR 0.01 0 0 0.02 0
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS S S C C S
TSTMS S C C
HEAT INDEX 94 95101101 94 95100100 91
MAX HEAT 103 101 102 100 101
HEAT
DATE 07/21 WED 07/22/26 THU 07/23/26 FRI 07/24/26 SAT 07/25/26
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 75 93 75 91 73 89 73 90
TEMP 91 87 77 77 91 87 78 77 88 85 76 75 87 83 75 75 88 83
DEWPT 75 75 75 76 76 76 75 76 75 75 74 74 74 74 74 74 74 75
PWIND DIR S S SW SW S E E SE SE
WIND CHAR GN LT GN LT LT LT LT LT LT
AVG CLOUDS SC SC B1 SC SC SC SC SC SC SC B1 SC SC SC SC SC SC SC
POP 12HR 40 10 30 50 60 30 50 30 50
RAIN SHWRS S C C C C C L C S C C C S C
TSTMS S C C C S C C C S S C
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
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page