170
FOUS52 KCHS 201811
PFMCHS
POINT FORECAST MATRICES
NATIONAL WEATHER SERVICE CHARLESTON SC
211 PM EDT THU AUG 20 2026
SCZ150-210800-
CHARLESTON INTERNATIONAL AIRPORT-CHARLESTON SC
32.91N 80.03W ELEV. 45 FT
211 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 78 96 75 91 74
TEMP 94 87 82 81 80 80 90 94 91 83 81 79 77 77 85 89 86 81 79 77 76 76
DEWPT 75 76 77 76 76 77 76 75 75 75 76 75 75 75 75 75 76 75 75 75 74 74
RH 54 70 85 85 88 91 64 54 60 77 85 88 94 94 72 64 72 82 88 94 94 94
WIND DIR SE SE S SW SW S S S S SW S SW W SW SW SW SW SW SW SW SW W
WIND SPD 10 8 6 5 5 4 5 9 13 8 6 5 4 5 6 9 10 8 6 5 6 5
CLOUDS FW FW CL FW FW FW FW SC B1 B1 B1 B1 B1 SC SC B1 B1 B1 B1 SC FW FW
POP 12HR 5 30 30 70 40
QPF 12HR 0 0.17 0.03 0.18 0.04
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS S S C C S S C C L L C C
TSTMS S S C C S S C C C C S
HEAT INDEX 106 98 90 102106102 90 94 99 96
MAX HEAT 106 93 106 106 99 99
HEAT Y
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 94 75 93 74 92 75 91 76 93
TEMP 92 85 79 76 91 83 77 76 89 82 78 76 89 83 78 77 90 84
DEWPT 70 72 73 72 68 71 73 74 71 72 73 74 72 72 74 74 74 74
PWIND DIR SW SW SW S S S SW SW SW
WIND CHAR LT LT LT LT LT LT LT LT LT
AVG CLOUDS FW FW FW FW FW FW SC SC SC SC SC FW FW SC SC SC SC B1
POP 12HR 10 20 20 20 50 20 50 20 50
RAIN SHWRS S S S S S S C S S C C S S S C
TSTMS S S S S S S C S S C C S S S C
GAZ218-210800-
SAVANNAH INTERNATIONAL AIRPORT-INLAND CHATHAM GA
32.12N 81.20W ELEV. 50 FT
211 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 77 97 75 93 74
TEMP 98 91 83 81 79 79 90 96 92 83 79 77 76 76 85 91 89 81 78 76 75 75
DEWPT 71 73 75 74 74 74 75 73 74 75 75 74 74 74 76 76 75 75 75 74 73 73
RH 42 56 77 79 85 85 62 48 56 77 88 90 94 94 75 62 64 82 91 94 94 94
WIND DIR SE S S SW SW SW SW S S SW S SW S SW SW SW SW S S SW SW W
WIND SPD 8 8 5 4 4 5 5 8 12 5 5 3 4 3 4 5 5 4 4 4 4 4
CLOUDS CL CL FW FW FW FW FW SC B1 B2 B1 B1 SC SC B1 B1 B2 B1 SC FW FW FW
POP 12HR 0 60 50 70 30
QPF 12HR 0 0.09 0.05 0.10 0.08
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS S C C C C S S S S L L C C
TSTMS S C C C C S S S L C C
HEAT INDEX 106100 90 101106102 90 94103 99
MAX HEAT 107 94 106 106 103 105
HEAT Y
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 95 74 95 75 94 74 94 75 95
TEMP 94 88 77 75 94 86 77 76 92 84 77 75 91 84 77 76 93 85
DEWPT 69 71 70 69 67 71 73 72 72 73 73 73 74 74 74 74 74 75
PWIND DIR W SW SW S SW SW SW SW SW
WIND CHAR LT LT LT LT LT LT LT LT LT
AVG CLOUDS FW FW FW CL FW FW SC FW SC SC SC FW SC SC SC SC SC SC
POP 12HR 10 5 20 20 40 20 50 20 40
RAIN SHWRS S S S C S C C S S S C
TSTMS S S S C S S C S S C
SCZ150-210800-
CHARLESTON WATERFRONT-CHARLESTON SC
32.78N 79.94W ELEV. 10 FT
211 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 80 95 77 90 76
TEMP 93 88 84 83 82 82 90 93 91 84 82 81 79 79 85 88 86 82 80 79 78 78
DEWPT 78 79 79 79 78 78 79 79 79 77 78 77 77 77 78 79 79 78 78 77 75 76
RH 62 75 85 88 88 88 70 64 68 80 88 88 94 94 80 75 80 88 94 94 91 94
WIND DIR SE S S SW SW SW S S S SW S SW SW SW SW SW SW SW SW SW SW W
WIND SPD 9 6 5 5 4 6 6 12 16 9 8 9 8 4 6 10 11 8 5 4 4 4
CLOUDS FW FW CL FW FW FW FW SC SC B1 B1 SC B1 B1 SC B1 B2 B1 B1 SC FW FW
POP 12HR 5 20 40 70 50
QPF 12HR 0 0.01 0.02 0.12 0.03
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS C C C S C C L L C C
TSTMS C C C S S C C C C S
HEAT INDEX 109103 96 94 91 91106110107 94 91 97103100 91
MAX HEAT 110 98 94 110 112 93 103 103
HEAT Y
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 92 77 92 77 90 77 90 78 91
TEMP 91 85 81 79 90 84 80 79 88 83 80 79 88 83 81 79 90 84
DEWPT 76 77 76 75 74 75 75 75 76 75 75 75 77 76 76 76 78 77
PWIND DIR SW SW SW S S SW SW SW SW
WIND CHAR LT LT LT LT LT LT GN LT GN
AVG CLOUDS FW FW FW FW FW FW SC SC SC SC SC FW FW SC SC SC SC B1
POP 12HR 10 20 20 20 50 30 50 30 50
RAIN SHWRS S S S S S S C C C C C C C C C
TSTMS S S S S S S C C C C C C C C C
SCZ148-210800-
BEAUFORT MARINE CORPS AIR STATION-BEAUFORT SC
32.48N 80.72W ELEV. 37 FT
211 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 78 96 75 92 75
TEMP 96 89 83 81 80 80 90 94 92 84 80 78 77 77 85 90 88 81 79 77 76 76
DEWPT 75 76 76 77 75 76 76 76 76 75 76 75 74 75 77 78 78 77 76 75 73 74
RH 51 66 80 88 85 88 64 56 60 74 88 91 90 94 77 68 72 88 91 94 90 94
WIND DIR SE S S SW SW SW SW S S SW S S SW SW SW SW S S SW SW SW W
WIND SPD 8 6 4 4 4 5 5 10 14 6 5 4 4 3 4 5 6 5 3 4 4 3
CLOUDS CL CL CL CL CL FW FW SC SC B1 B1 B1 B1 SC B1 B1 B1 B1 B1 SC FW FW
POP 12HR 0 50 60 60 30
QPF 12HR 0 0.08 0.28 0.15 0.10
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS S C L C S S C C L L C C
TSTMS S C C C S S S C L C S
HEAT INDEX 108100 91 102107105 92 96105102
MAX HEAT 109 94 107 109 105 106
HEAT Y
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 94 75 94 75 93 76 92 76 93
TEMP 93 87 79 76 93 85 78 77 90 84 78 77 90 84 79 77 91 84
DEWPT 72 74 73 71 70 73 74 74 74 74 74 74 76 74 75 75 76 76
PWIND DIR W SW SW S S SW SW SW SW
WIND CHAR LT LT LT LT LT LT LT LT LT
AVG CLOUDS FW FW FW FW CL FW SC SC SC SC SC FW FW SC SC SC SC SC
POP 12HR 10 5 10 20 40 20 40 30 50
RAIN SHWRS S S S C S S C C C S S C
TSTMS S S S C S S S C C S S C
SCZ043-210800-
WALTERBORO-INLAND COLLETON SC
32.91N 80.67W ELEV. 98 FT
211 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 74 96 72 90 71
TEMP 95 87 80 78 76 76 89 95 91 81 77 75 74 74 84 88 87 80 76 74 73 73
DEWPT 71 73 74 74 73 73 74 72 72 74 74 73 73 73 74 74 73 74 74 73 71 72
RH 46 63 82 88 90 90 61 48 54 79 90 94 97 97 72 63 63 82 94 97 93 97
WIND DIR SE SE S S S S SW S S W S S SW SW SW SW SW S S SW SW W
WIND SPD 5 6 4 3 3 4 4 6 11 5 5 2 3 2 5 6 6 3 2 3 3 3
CLOUDS SC FW CL CL CL CL FW B1 B2 B1 SC B1 B1 B1 B1 SC B1 B1 SC FW FW SC
POP 12HR 0 80 60 60 30
QPF 12HR 0 0.35 0.12 0.08 0.04
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS C C L L C C S C C L L C C
TSTMS C C C C C C S S C C C
HEAT INDEX 103 94 98104 99 91 97 94
MAX HEAT 103 104 104 97 98
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 93 71 93 71 91 71 91 72 92
TEMP 92 86 75 73 92 83 74 73 90 82 73 74 89 83 74 75 90 83
DEWPT 67 67 70 68 65 67 71 71 69 71 71 72 71 72 72 72 72 73
PWIND DIR W SW W S S S SW S SW
WIND CHAR LT LT LT LT LT LT LT LT LT
AVG CLOUDS FW FW FW FW FW FW SC SC SC SC SC FW FW SC SC FW SC SC
POP 12HR 10 20 10 10 40 20 50 20 50
RAIN SHWRS S C S C C S S S C
TSTMS C S S C S S S C
GAZ099-210800-
METTER-CANDLER GA
32.40N 82.06W ELEV. 197 FT
211 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 75 96 72 92 72
TEMP 99 91 81 79 77 77 89 95 91 79 76 75 74 74 83 90 89 81 77 75 73 73
DEWPT 67 70 73 73 73 73 74 73 72 74 75 75 74 74 76 75 73 73 73 73 72 71
RH 36 50 77 82 87 87 61 49 54 85 97100100100 80 62 59 77 87 94 97 93
WIND DIR S S S SW SW SW SW S SE W S S SW SW W W W S S SW W W
WIND SPD 3 3 3 3 3 4 4 6 4 4 4 3 3 3 4 6 5 2 2 3 3 3
CLOUDS CL FW CL CL FW FW SC B1 B1 B2 B2 B1 B2 SC B1 SC SC SC SC FW CL CL
POP 12HR 0 70 30 50 20
QPF 12HR 0 0.20 0.04 0.07 0.01
SNOW 12HR 00-00 00-00 00-00
RAIN SHWRS S C L C C S S S S C C S S
TSTMS S C C C C S S S C C S
HEAT INDEX 104 97 98105 99 91101 97
MAX HEAT 104 90 105 105 101 101
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 94 72 94 72 93 72 93 72 94
TEMP 92 86 76 73 92 85 75 74 91 83 74 74 91 84 76 73 91 84
DEWPT 67 66 65 65 65 66 69 70 69 71 72 72 72 73 73 73 74 74
PWIND DIR W SW W S SW SW SW S SW
WIND CHAR LT LT LT LT LT LT LT LT LT
AVG CLOUDS CL FW FW FW CL FW SC SC SC SC SC FW SC SC SC SC SC SC
POP 12HR 5 0 5 20 30 20 40 30 40
RAIN SHWRS S C S S C C S S C
TSTMS S C S C C 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
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