Point Forecast Matrices
Issued by NWS Charleston, SC
Issued by NWS Charleston, SC
839
FOUS52 KCHS 241046
PFMCHS
Point Forecast Matrices
National Weather Service Charleston SC
646 AM EDT Sun Aug 24 2025
SCZ050-242000-
Charleston International Airport-Charleston SC
32.91N 80.03W Elev. 45 ft
646 AM EDT Sun Aug 24 2025
Date Sun 08/24/25 Mon 08/25/25 Tue 08/26/25
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 87 72 89 71 88
Temp 72 77 83 84 80 76 74 72 74 83 87 85 81 77 74 71 73 81 86 86 81
Dewpt 70 71 70 71 71 72 71 71 71 72 71 72 72 73 71 69 67 66 65 66 67
RH 93 82 65 65 74 87 90 97 90 70 59 65 74 87 90 93 81 60 50 51 63
Wind dir N N N N SW SW SW W W W SW SW S SW W NW N NE NE NE N
Wind spd 8 8 5 4 2 3 4 3 3 4 5 6 5 3 3 4 5 5 5 5 3
Clouds B2 B2 B1 B1 SC FW FW FW FW FW SC SC FW FW FW FW FW FW SC SC SC
PoP 12hr 30 10 20 5 10
QPF 12hr 0 0 0.04 0 0
Snow 12hr 00-00 00-00 00-00
Rain shwrs C S S S S S
Tstms S S S S S S
Heat index 93 91
Max heat 90 93 93
Coast Flood Y
Date Wed 08/27/25 Thu 08/28/25 Fri 08/29/25 Sat 08/30/25
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 70 84 67 84 67 83 67 84
Temp 73 70 82 76 69 68 82 76 69 69 80 75 69 69 82 75
Dewpt 66 63 62 63 63 63 61 64 64 64 62 64 64 63 63 65
PWind dir N NE NE NE NE NE NE NE
Wind char LT GN LT GN LT GN LT GN
Avg clouds SC B1 SC SC FW FW SC B1 SC B1 B1 B1 SC SC SC B1
PoP 12hr 10 20 5 20 20 30 20 30
Rain shwrs S S S S C S S S C
Tstms S S C C
$$
GAZ118-242000-
Savannah International Airport-Inland Chatham GA
32.12N 81.20W Elev. 50 ft
646 AM EDT Sun Aug 24 2025
Date Sun 08/24/25 Mon 08/25/25 Tue 08/26/25
EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20
UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00
Max/Min 87 72 91 68 90
Temp 72 79 85 85 79 76 74 73 73 83 89 88 81 76 73 70 68 80 88 89 81
Dewpt 70 73 73 73 73 73 72 72 72 74 74 73 72 71 68 65 64 68 67 66 67
RH 93 82 67 67 82 90 93 97 97 74 61 61 74 85 84 84 87 67 50 47 63
Wind dir N N N NW S SW SW W W W W SW SW W W NW NW N N N N
Wind spd 4 5 3 3 2 2 2 2 2 3 3 5 3 2 2 3 3 4 3 5 3
Clouds SC B1 B1 B1 SC FW FW FW FW FW SC SC SC FW CL CL FW FW SC FW SC
PoP 12hr 30 10 20 5 10
QPF 12hr 0 0 0 0 0
Snow 12hr 00-00 00-00 00-00
Rain shwrs S S S S
Tstms S S S S
Heat index 92 92 90 98 96 91 92
Max heat 92 93 98 99 91 93
Date Wed 08/27/25 Thu 08/28/25 Fri 08/29/25 Sat 08/30/25
EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20
UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
Min/Max 69 86 69 86 68 84 67 85
Temp 73 70 84 76 71 70 84 76 70 69 82 74 69 69 83 76
Dewpt 65 63 66 65 65 65 66 65 65 65 66 65 65 65 66 66
PWind dir N NE NE NE NE NE NE NE
Wind char LT LT LT LT LT LT LT GN
Avg clouds SC SC SC SC FW FW SC SC SC SC B1 B1 SC SC SC B1
PoP 12hr 5 20 5 20 10 30 20 40
Rain shwrs S S C S S S C
Tstms S S C C
$$
SCZ050-242000-
Charleston Waterfront-Charleston SC
32.78N 79.94W Elev. 10 ft
646 AM EDT Sun Aug 24 2025
Date Sun 08/24/25 Mon 08/25/25 Tue 08/26/25
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 86 73 88 72 87
Temp 73 78 83 84 80 77 76 74 75 83 86 85 81 79 77 74 73 81 85 86 81
Dewpt 72 74 74 73 74 74 74 73 73 75 74 76 75 75 73 71 69 70 70 71 70
RH 97 88 74 70 82 90 94 97 94 77 68 75 82 88 87 90 87 69 61 61 69
Wind dir N N N N SW SW W W W W SW SW SW SW W NW N NE NE E NE
Wind spd 6 8 5 4 3 3 3 3 3 4 5 6 5 4 3 4 5 5 5 5 3
Clouds B2 B2 B1 B1 SC FW FW FW FW FW SC SC FW FW FW FW FW FW FW SC SC
PoP 12hr 30 10 20 5 10
QPF 12hr 0.02 0 0.01 0 0
Snow 12hr 00-00 00-00 00-00
Rain shwrs C C S S S S
Tstms S S S S S S
Heat index 90 90 90 94 94 90 91
Max heat 90 93 94 95 90 91
Coast Flood Y
Date Wed 08/27/25 Thu 08/28/25 Fri 08/29/25 Sat 08/30/25
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 72 84 70 83 70 83 70 83
Temp 75 72 82 78 73 72 82 77 72 71 81 76 72 72 82 77
Dewpt 68 65 66 66 65 65 67 67 67 67 66 67 66 65 66 67
PWind dir N NE NE NE NE NE NE NE
Wind char LT GN LT GN LT GN LT GN
Avg clouds SC SC B1 SC FW FW SC SC B1 B1 B1 B1 SC SC SC B1
PoP 12hr 10 20 10 20 20 30 20 30
Rain shwrs S S S S C S S S C
Tstms S S C C
$$
SCZ048-242000-
Beaufort Marine Corps Air Station-Beaufort SC
32.48N 80.72W Elev. 37 ft
646 AM EDT Sun Aug 24 2025
Date Sun 08/24/25 Mon 08/25/25 Tue 08/26/25
EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20
UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00
Max/Min 87 72 89 70 88
Temp 71 78 85 85 79 76 74 73 74 83 87 86 81 77 74 72 70 81 86 87 81
Dewpt 70 72 73 72 73 73 72 72 72 74 74 74 74 72 70 67 67 68 68 68 69
RH 97 82 67 65 82 90 93 97 93 74 65 68 79 85 87 84 90 65 55 53 67
Wind dir N N N NW S SW W W W W SW SW SW SW W NW N N N N N
Wind spd 5 5 4 3 2 2 2 2 2 3 3 5 3 2 2 3 4 4 4 4 2
Clouds B2 B1 B1 B1 SC FW FW FW FW FW SC SC SC FW CL CL FW FW FW FW SC
PoP 12hr 30 10 20 5 10
QPF 12hr 0 0 0 0 0
Snow 12hr 00-00 00-00 00-00
Rain shwrs S S S S S
Tstms S S S S S
Heat index 92 91 90 95 94 91
Max heat 92 92 95 95 91
Date Wed 08/27/25 Thu 08/28/25 Fri 08/29/25 Sat 08/30/25
EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20
UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
Min/Max 70 84 68 85 68 83 68 84
Temp 73 70 83 76 71 69 83 75 70 69 81 74 70 69 82 75
Dewpt 66 64 65 66 64 64 65 66 66 65 66 66 65 64 66 66
PWind dir N NE NE NE NE NE NE NE
Wind char LT LT LT LT LT LT LT GN
Avg clouds SC SC SC SC FW SC SC SC B1 SC B1 B1 SC SC SC B1
PoP 12hr 5 20 5 20 20 30 20 30
Rain shwrs S S S C S S S C
Tstms S S C C
$$
SCZ043-242000-
Walterboro-Inland Colleton SC
32.91N 80.67W Elev. 98 ft
646 AM EDT Sun Aug 24 2025
Date Sun 08/24/25 Mon 08/25/25 Tue 08/26/25
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 85 70 89 67 86
Temp 70 77 83 83 78 73 71 70 72 82 87 87 78 74 70 67 69 79 84 85 78
Dewpt 69 71 70 69 72 71 71 69 71 72 72 70 72 71 68 66 65 65 64 64 66
RH 97 82 65 63 82 93100 97 97 72 61 57 82 90 93 97 87 62 51 50 67
Wind dir N N N N SW SW SW W W W W W SW W NW N N NE N N N
Wind spd 5 5 5 3 1 1 2 1 1 3 4 4 2 2 2 3 4 5 4 4 3
Clouds B1 B1 SC SC SC FW FW FW FW FW SC SC SC FW FW FW SC SC FW SC SC
PoP 12hr 20 5 20 0 5
QPF 12hr 0 0 0 0 0
Snow 12hr 00-00 00-00 00-00
Rain shwrs S S S
Tstms S S S
Heat index 94 92
Max heat 94 94
Date Wed 08/27/25 Thu 08/28/25 Fri 08/29/25 Sat 08/30/25
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 65 82 62 82 64 81 63 82
Temp 70 66 80 72 66 64 80 73 67 66 79 71 65 65 80 72
Dewpt 64 63 61 63 61 62 60 64 64 64 62 64 63 63 63 65
PWind dir N NE NE NE NE NE NE NE
Wind char LT LT LT LT LT LT LT LT
Avg clouds SC B1 SC FW FW SC SC SC SC B1 B1 SC SC SC SC B1
PoP 12hr 5 10 0 10 10 20 10 30
Rain shwrs S C
Tstms S C
$$
GAZ099-242000-
Metter-Candler GA
32.40N 82.06W Elev. 197 ft
646 AM EDT Sun Aug 24 2025
Date Sun 08/24/25 Mon 08/25/25 Tue 08/26/25
EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20
UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00
Max/Min 88 71 91 64 89
Temp 70 78 86 85 80 75 73 71 72 82 89 89 81 73 69 66 65 78 86 87 80
Dewpt 68 70 70 70 71 70 71 70 70 72 69 67 66 63 61 59 59 63 63 63 64
RH 93 76 59 61 74 84 93 97 93 72 52 48 60 71 76 78 81 60 46 45 58
Wind dir N N N NW W SW SW W W NW W W W NW NW NW N N N N N
Wind spd 2 3 3 2 1 1 1 1 2 3 4 4 2 2 2 2 2 4 4 5 3
Clouds B2 B1 B1 SC SC FW FW FW FW FW FW FW CL FW CL FW FW FW FW FW FW
PoP 12hr 20 10 10 0 5
QPF 12hr 0 0 0 0 0
Snow 12hr 00-00 00-00 00-00
Rain shwrs S
Tstms S
Heat index 91 90 94 92
Max heat 91 91 94 94
Date Wed 08/27/25 Thu 08/28/25 Fri 08/29/25 Sat 08/30/25
EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20
UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
Min/Max 66 86 65 86 65 84 65 85
Temp 70 66 84 76 68 67 84 75 67 67 82 73 67 66 83 75
Dewpt 61 59 62 62 62 61 61 62 64 63 62 63 63 63 63 64
PWind dir N NE E E E NE E E
Wind char LT LT LT LT LT LT LT LT
Avg clouds SC SC SC FW FW FW SC SC SC SC SC B1 SC SC SC B1
PoP 12hr 5 5 0 10 10 20 20 30
Rain shwrs S S S C
Tstms S C
$$
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