Point Forecast Matrices
Issued by NWS Charleston, SC
Issued by NWS Charleston, SC
699
FOUS52 KCHS 190551
PFMCHS
Point Forecast Matrices
National Weather Service Charleston SC
151 AM EDT Tue Aug 19 2025
SCZ050-192000-
Charleston International Airport-Charleston SC
32.91N 80.03W Elev. 45 ft
151 AM EDT Tue Aug 19 2025
Date Tue 08/19/25 Wed 08/20/25 Thu 08/21/25
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 90 75 90 75 92
Temp 76 77 84 87 86 81 78 76 75 76 83 87 88 82 79 77 75 76 85 89 90 83
Dewpt 73 74 73 73 74 73 73 74 73 73 73 72 73 73 73 72 72 72 72 71 72 74
RH 90 90 70 63 68 77 85 94 94 90 72 61 61 74 82 85 90 87 65 56 56 74
Wind dir N NE NE NE E E NE N N N N N N N N N NW N N N N SE
Wind spd 3 5 9 10 10 8 6 6 9 12 14 16 16 11 10 10 11 11 12 12 11 8
Clouds FW SC SC B1 B1 FW CL FW FW FW SC B1 B1 SC FW FW FW FW FW SC SC B1
PoP 12hr 40 10 30 5 20
QPF 12hr 0.06 0 0.02 0 0
Snow 12hr 00-00 00-00 00-00
Rain shwrs C C C C S S C
Tstms C C C C S S C
Heat index 90 94 94 94 96 91 95 97 90
Max heat 94 97 94 96 95 97
High Surf Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y
Date Fri 08/22/25 Sat 08/23/25 Sun 08/24/25 Mon 08/25/25
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 75 86 73 84 73 86 73 89
Temp 77 77 83 78 75 75 81 77 74 74 84 79 75 75 86 80
Dewpt 74 74 72 72 71 72 72 71 72 72 72 73 73 73 72 72
PWind dir SE E E E E SE SW W
Wind char LT GN LT GN LT LT LT LT
Avg clouds B1 SC B1 B2 B1 B1 B1 B2 B1 B1 B1 B2 SC SC SC B1
PoP 12hr 30 60 40 60 40 60 20 30
Rain shwrs C C C L C C C L C C C L S S C
Tstms C C C L C C C L C S C C S S C
$$
GAZ118-192000-
Savannah International Airport-Inland Chatham GA
32.12N 81.20W Elev. 50 ft
151 AM EDT Tue Aug 19 2025
Date Tue 08/19/25 Wed 08/20/25 Thu 08/21/25
EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20
UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00
Max/Min 91 73 93 74 94
Temp 74 76 85 89 88 81 77 75 74 74 84 90 91 83 79 76 74 76 87 92 91 83
Dewpt 73 74 76 75 75 75 75 74 73 73 74 73 72 73 72 72 71 72 73 73 73 75
RH 97 94 75 64 66 82 94 97 97 97 72 58 54 72 79 87 90 87 63 54 56 77
Wind dir N NE NE E E E NE N N N N N N N NW NW NW NW NW NW NE S
Wind spd 2 3 6 8 8 5 3 4 5 10 12 12 11 6 5 5 6 6 8 8 8 5
Clouds FW FW FW SC B1 FW FW FW FW SC FW SC SC SC FW FW CL FW FW SC SC B1
PoP 12hr 30 10 20 5 30
QPF 12hr 0.01 0 0 0 0
Snow 12hr 00-00 00-00 00-00
Rain shwrs C S S C C C
Tstms C S S C C C
Heat index 94 99 98 91 98 99 94101100 90
Max heat 99 101 98 100 101 101
Date Fri 08/22/25 Sat 08/23/25 Sun 08/24/25 Mon 08/25/25
EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20
UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
Min/Max 74 88 73 85 73 88 73 90
Temp 77 76 86 77 75 75 83 78 75 74 86 81 75 74 88 81
Dewpt 75 74 75 74 74 73 74 73 73 73 74 74 73 73 74 74
PWind dir SW E E E NE NW W W
Wind char LT LT LT LT LT LT LT LT
Avg clouds B1 SC B1 B2 B2 B1 B1 B2 B1 B1 B1 B2 SC SC SC B1
PoP 12hr 30 70 60 70 40 60 20 30
Rain shwrs C S C L L C C L C S C L S C
Tstms C C L C S C L C S L S C
$$
SCZ050-192000-
Charleston Waterfront-Charleston SC
32.78N 79.94W Elev. 10 ft
151 AM EDT Tue Aug 19 2025
Date Tue 08/19/25 Wed 08/20/25 Thu 08/21/25
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 89 76 90 76 91
Temp 78 78 84 87 87 83 80 78 77 76 84 88 88 83 80 78 76 78 85 89 89 84
Dewpt 75 76 77 76 77 76 76 75 75 75 74 75 75 74 74 74 73 73 73 73 74 75
RH 91 94 80 70 72 80 88 91 94 97 72 66 66 74 82 88 90 85 67 59 61 74
Wind dir NE NE NE E E E NE N N N N N N N N N NW N N N NW S
Wind spd 3 5 9 11 12 9 6 6 10 13 16 16 16 11 10 10 11 11 12 11 10 8
Clouds FW SC SC B1 SC FW FW FW FW SC SC B1 B1 SC FW FW FW FW FW SC SC B1
PoP 12hr 40 10 30 5 20
QPF 12hr 0 0 0.04 0 0
Snow 12hr 00-00 00-00 00-00
Rain shwrs C C S S C C S S C
Tstms C C S S C C S S C
Heat index 94 98 99 91 91 98 98 90 92 97 98 92
Max heat 98 100 98 99 97 98
High Surf Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y
Date Fri 08/22/25 Sat 08/23/25 Sun 08/24/25 Mon 08/25/25
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 76 85 76 84 74 86 75 88
Temp 79 78 83 79 77 77 82 78 76 76 84 81 77 77 86 82
Dewpt 75 75 74 74 73 73 74 73 74 73 75 74 74 74 74 74
PWind dir SE E E E SE SE SW W
Wind char LT GN LT GN LT LT LT LT
Avg clouds B1 B1 B1 B2 B1 B1 B2 B2 B1 B1 B1 B2 B1 SC SC B1
PoP 12hr 30 60 50 60 40 60 30 30
Rain shwrs C C C L C C L L C C C L C S S C
Tstms C C C L C C C C C C C C C S S C
$$
SCZ048-192000-
Beaufort Marine Corps Air Station-Beaufort SC
32.48N 80.72W Elev. 37 ft
151 AM EDT Tue Aug 19 2025
Date Tue 08/19/25 Wed 08/20/25 Thu 08/21/25
EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20
UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00
Max/Min 90 73 91 75 93
Temp 75 76 84 88 86 80 78 75 74 75 83 89 89 83 79 77 75 76 85 91 90 83
Dewpt 74 74 75 76 75 76 75 74 73 74 74 73 73 73 73 72 72 73 73 73 73 75
RH 97 94 74 68 70 88 91 97 97 97 74 59 59 72 82 85 90 90 67 56 58 77
Wind dir N N NE E E E NE N N N N N N N NW NW NW NW N NW N S
Wind spd 2 4 6 6 8 4 3 4 6 12 13 12 11 8 6 6 8 8 9 8 8 5
Clouds FW FW FW B1 B1 FW FW FW FW FW FW SC SC SC FW FW FW FW FW SC SC B1
PoP 12hr 30 10 20 5 20
QPF 12hr 0.13 0 0 0 0
Snow 12hr 00-00 00-00 00-00
Rain shwrs C C S S C C C
Tstms C C S S C C C
Heat index 92 99 95 90 97 97 92100 98 90
Max heat 99 98 97 98 100 101
High Surf Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y Y
Date Fri 08/22/25 Sat 08/23/25 Sun 08/24/25 Mon 08/25/25
EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20
UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
Min/Max 74 87 74 84 73 87 73 90
Temp 77 76 85 77 75 75 82 77 75 74 85 80 76 74 88 80
Dewpt 74 74 75 74 73 73 74 73 72 73 74 74 74 73 73 74
PWind dir S E E E E SW SW W
Wind char LT GN LT LT LT LT LT LT
Avg clouds B1 SC B1 B2 B1 B1 B1 B2 B1 B1 B1 B2 SC SC SC B1
PoP 12hr 30 70 50 70 40 60 20 30
Rain shwrs C C C L C C C L C C C L S C
Tstms C S C L C S C L C S S C S C
$$
SCZ043-192000-
Walterboro-Inland Colleton SC
32.91N 80.67W Elev. 98 ft
151 AM EDT Tue Aug 19 2025
Date Tue 08/19/25 Wed 08/20/25 Thu 08/21/25
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 89 71 89 73 91
Temp 73 73 84 87 85 78 75 73 72 73 82 87 87 80 77 74 73 75 85 89 89 81
Dewpt 72 73 74 74 74 76 75 73 72 73 74 73 72 73 73 72 71 73 73 72 72 74
RH 97100 72 65 70 94100100100100 77 63 61 79 87 93 93 94 67 57 57 79
Wind dir N NE NE NE NE NE NE N N N N N N N N N N N N N N E
Wind spd 1 3 5 6 5 2 2 3 5 9 12 12 12 8 5 5 8 8 10 9 8 4
Clouds FW FW SC B1 B1 SC FW FW FW FW SC SC SC SC FW FW FW FW FW SC SC SC
PoP 12hr 50 10 20 0 20
QPF 12hr 0.22 0 0 0 0
Snow 12hr 00-00 00-00 00-00
Rain shwrs C C S S S S C
Tstms C C S S S S C
Heat index 91 95 93 94 94 92 96 96
Max heat 95 95 94 95 96 96
Date Fri 08/22/25 Sat 08/23/25 Sun 08/24/25 Mon 08/25/25
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 73 85 71 82 70 85 70 87
Temp 75 74 83 75 72 73 80 74 72 72 83 77 72 72 85 78
Dewpt 74 74 74 74 72 72 73 73 72 72 72 73 72 72 72 72
PWind dir E E E E NE W SW NW
Wind char LT LT LT LT LT LT LT LT
Avg clouds SC SC B1 B2 B1 B1 B1 B2 B1 B1 B1 B2 SC SC SC B1
PoP 12hr 30 70 40 60 30 60 20 30
Rain shwrs C S C L C C C L C S S L S C
Tstms C S S L C S S L C S C S C
$$
GAZ099-192000-
Metter-Candler GA
32.40N 82.06W Elev. 197 ft
151 AM EDT Tue Aug 19 2025
Date Tue 08/19/25 Wed 08/20/25 Thu 08/21/25
EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20
UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00
Max/Min 93 72 93 73 95
Temp 73 73 86 91 90 82 77 75 73 74 84 91 91 84 78 75 73 75 86 93 92 83
Dewpt 71 72 72 71 72 73 73 74 72 73 73 72 71 72 71 71 71 71 72 71 72 74
RH 93 97 63 52 56 74 87 97 97 97 70 54 52 67 79 87 93 87 63 49 52 74
Wind dir N NE NE NE NE SE NE N N N N N N N N NW NW NW N NW N NW
Wind spd 1 2 5 5 5 3 2 2 2 5 9 9 9 5 3 3 3 4 6 8 6 4
Clouds CL CL FW FW B1 SC FW FW FW SC FW SC SC FW FW FW CL FW FW SC SC B1
PoP 12hr 30 10 10 0 30
QPF 12hr 0 0 0 0 0
Snow 12hr 00-00 00-00 00-00
Rain shwrs C C C C
Tstms C C C C
Heat index 92 98 97 90 99 98 90 92100100 90
Max heat 98 99 99 99 100 101
Date Fri 08/22/25 Sat 08/23/25 Sun 08/24/25 Mon 08/25/25
EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20
UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
Min/Max 73 89 71 86 71 88 72 91
Temp 76 75 87 77 73 73 84 77 73 73 86 80 74 73 89 81
Dewpt 73 73 73 74 73 72 73 73 72 71 73 73 72 72 71 69
PWind dir SE E E E E N W NW
Wind char LT LT LT LT LT LT LT LT
Avg clouds B1 SC B1 B2 B1 B1 B1 B2 B1 B1 B1 B1 SC SC SC SC
PoP 12hr 30 70 50 70 30 50 10 20
Rain shwrs C C L C C C L C C S
Tstms C S L C S L S C S
$$
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