Point Forecast Matrices
Issued by NWS Charleston, SC
Issued by NWS Charleston, SC
156
FOUS52 KCHS 220006
PFMCHS
Point Forecast Matrices
National Weather Service Charleston SC
806 PM EDT Mon Jul 21 2025
SCZ050-220800-
Charleston International Airport-Charleston SC
32.91N 80.03W Elev. 45 ft
806 PM EDT Mon Jul 21 2025
Date 07/21/25 Tue 07/22/25 Wed 07/23/25 Thu
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 95 75 88 75
Temp 82 80 79 80 89 90 86 80 78 77 75 77 83 85 83 79 78 77 75 77
Dewpt 78 77 77 76 76 76 76 76 75 75 74 74 75 75 76 75 75 75 75 76
RH 88 91 94 88 66 64 72 88 91 94 97 90 77 72 80 88 91 94100 97
Wind dir SW W N N NE E E NE NE NE NE NE NE E E E E E E E
Wind spd 2 2 2 4 5 8 10 8 6 5 8 10 11 12 13 9 5 5 5 5
Clouds B1 SC FW FW SC B2 B2 OV B2 B1 B1 B2 B2 B2 B2 B1 B1 B1 B1 B2
PoP 12hr 30 80 60 70 50
QPF 12hr 0.01 0.24 0.18 0.35 0.06
Snow 12hr 00-00 00-00 00-00
Rain shwrs S S L L L L C C L L L L C C C C D
Tstms S S L L C C S S C C L C C S C C S
Heat index 91 100102 96 90 94 91
Max heat 96 92 105 105 94 94
Date 07/24 Fri 07/25/25 Sat 07/26/25 Sun 07/27/25 Mon 07/28/25
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 90 76 93 76 96 77 96 78 95
Temp 86 80 77 78 90 82 78 79 93 84 79 80 94 84 80 80 93 84
Dewpt 75 75 75 75 74 75 76 75 74 75 76 74 73 74 75 74 73 75
PWind dir SE S S SW SW SW SW SW SW
Wind char GN LT LT LT GN LT LT LT LT
Avg clouds B2 B2 FW SC B1 B1 FW FW FW B1 FW FW FW B1 B1 FW SC B1
PoP 12hr 80 20 40 10 30 10 30 30 50
Rain shwrs D L S C C C C C C
Tstms C L S C C C C C C
$$
GAZ118-220800-
Savannah International Airport-Inland Chatham GA
32.12N 81.20W Elev. 50 ft
806 PM EDT Mon Jul 21 2025
Date 07/21/25 Tue 07/22/25 Wed 07/23/25 Thu
EDT 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08
UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12
Min/Max 78 96 75 89 76
Temp 82 80 79 80 90 94 90 82 78 77 75 77 83 87 86 81 78 78 76 78
Dewpt 75 75 74 75 76 75 76 76 76 75 75 76 77 77 76 75 76 75 75 75
RH 79 85 85 85 64 54 64 82 94 94100 97 82 72 72 82 94 91 97 91
Wind dir W W W NW N N E E NE NE NE NE NE E E E E E E E
Wind spd 2 2 2 2 3 4 5 5 3 3 5 6 9 10 10 5 4 3 3 4
Clouds B1 SC FW FW FW B1 B2 OV B2 B1 B1 B2 B2 OV OV B1 B1 B1 B1 B2
PoP 12hr 30 70 60 80 50
QPF 12hr 0.02 0.28 0.54 0.48 0.03
Snow 12hr 00-00 00-00 00-00
Rain shwrs S S C L L L S S L L D D C C C C L
Tstms S S C L L S S S C L L C S S C S
Heat index 102106102 92 99 96
Max heat 96 94 106 107 99 99
Heat Y Y Y
Date 07/24 Fri 07/25/25 Sat 07/26/25 Sun 07/27/25 Mon 07/28/25
EDT 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20
UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
Max/Min 90 76 93 76 96 77 98 78 96
Temp 88 83 78 78 91 83 78 78 94 85 79 79 96 86 79 80 94 86
Dewpt 75 75 75 76 74 75 75 75 75 75 74 73 74 75 74 74 74 75
PWind dir SE S S SW SW SW W SW W
Wind char LT LT LT LT LT LT LT LT LT
Avg clouds B2 B2 SC FW SC B2 FW FW FW B1 FW FW FW B1 SC FW FW B1
PoP 12hr 80 20 60 10 40 10 30 20 50
Rain shwrs L D S S L C C S C
Tstms C L S S L C C S C
$$
SCZ050-220800-
Charleston Waterfront-Charleston SC
32.78N 79.94W Elev. 10 ft
806 PM EDT Mon Jul 21 2025
Date 07/21/25 Tue 07/22/25 Wed 07/23/25 Thu
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 92 77 87 78
Temp 84 82 80 81 88 90 86 82 80 79 77 79 83 85 85 80 80 80 78 80
Dewpt 78 78 78 77 78 78 78 77 77 76 75 76 77 77 77 75 76 76 76 77
RH 82 88 94 88 72 68 77 85 91 91 94 91 82 77 77 85 88 88 94 91
Wind dir SW W N NE E E E E NE NE NE NE NE E E E E SE SE SE
Wind spd 3 2 2 3 5 9 10 8 6 5 8 9 11 13 13 9 5 5 5 5
Clouds B1 B1 FW SC B1 B2 B2 OV B2 B1 B1 B2 B2 B2 B2 B1 B1 B2 B2 B2
PoP 12hr 30 80 70 70 60
QPF 12hr 0 0.17 0.15 0.28 0.08
Snow 12hr 00-00 00-00 00-00
Rain shwrs S S C L L L L C C L L L L C C L L L
Tstms S S C L L C C S C C C L C C C C C C
Heat index 95 91 102105 98 92 96 95
Max heat 100 98 91 105 105 96 97
Date 07/24 Fri 07/25/25 Sat 07/26/25 Sun 07/27/25 Mon 07/28/25
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 89 78 91 78 94 79 95 79 95
Temp 87 83 80 80 89 83 80 80 92 85 81 81 93 85 81 81 93 85
Dewpt 76 76 76 76 76 76 76 77 77 77 77 76 76 77 77 75 77 77
PWind dir SE S S SW SW SW SW SW SW
Wind char GN LT LT LT GN LT GN LT LT
Avg clouds B2 B1 FW SC B1 B1 FW FW FW B1 FW FW FW B1 B1 SC SC B1
PoP 12hr 70 20 40 10 30 10 30 30 40
Rain shwrs L C S C C C C C S S C
Tstms C C S C C C C C S S C
$$
SCZ048-220800-
Beaufort Marine Corps Air Station-Beaufort SC
32.48N 80.72W Elev. 37 ft
806 PM EDT Mon Jul 21 2025
Date 07/21/25 Tue 07/22/25 Wed 07/23/25 Thu
EDT 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08
UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12
Min/Max 78 94 75 88 76
Temp 82 80 79 80 89 92 88 80 78 77 75 77 83 86 84 80 78 78 76 78
Dewpt 77 76 76 75 77 76 77 77 76 76 75 75 77 77 77 75 76 76 76 76
RH 85 88 91 85 68 60 70 91 94 97100 94 82 75 80 85 94 94100 94
Wind dir SW W W NW NE E E E NE NE NE NE NE E E E E E E E
Wind spd 2 2 2 2 4 5 5 5 4 4 5 8 10 10 10 5 4 3 3 4
Wind gust 16
Clouds B1 SC FW FW SC B1 B2 OV B2 B1 B1 B2 B2 B2 B2 B1 B1 B1 B1 B2
PoP 12hr 30 70 60 80 50
QPF 12hr 0.26 0.39 0.10 0.42 0.05
Snow 12hr 00-00 00-00 00-00
Rain shwrs S S C L L L C C L L D D C C C C L
Tstms S S C L C C S S C C L L C S C C S
Heat index 90 102105100 92 97 94
Max heat 98 94 106 106 97 97
Heat Y Y Y
Date 07/24 Fri 07/25/25 Sat 07/26/25 Sun 07/27/25 Mon 07/28/25
EDT 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20
UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
Max/Min 88 76 91 77 94 78 95 78 95
Temp 86 81 78 78 90 82 79 79 93 84 80 80 94 85 80 80 93 85
Dewpt 76 76 76 76 75 76 76 75 76 76 76 74 75 76 74 74 75 76
PWind dir SE S S SW SW SW W SW W
Wind char LT LT LT LT LT LT LT LT LT
Avg clouds B2 B2 SC FW SC B1 FW CL FW B1 FW FW FW B1 SC FW SC B1
PoP 12hr 70 20 40 10 30 10 30 20 40
Rain shwrs L L S S C C C S C
Tstms C L S S C C C S C
$$
SCZ043-220800-
Walterboro-Inland Colleton SC
32.91N 80.67W Elev. 98 ft
806 PM EDT Mon Jul 21 2025
Date 07/21/25 Tue 07/22/25 Wed 07/23/25 Thu
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 92 72 86 73
Temp 81 78 76 78 88 90 87 78 76 74 72 75 82 84 83 77 75 74 73 75
Dewpt 75 75 74 76 76 75 75 75 75 74 72 74 75 75 76 75 75 74 73 75
RH 82 91 94 94 68 62 68 91 97100100 97 79 74 80 94100100100100
Wind dir SW N NW N NE NE E NE NE NE NE NE NE E E E E E E E
Wind spd 1 0 1 2 4 5 5 4 3 3 5 6 9 9 9 5 2 2 3 4
Clouds SC SC FW FW FW B2 B2 OV B2 B1 B1 B1 B1 B2 B2 B1 B1 B1 B1 B2
PoP 12hr 30 80 50 70 40
QPF 12hr 0 0.41 0.12 0.40 0.03
Snow 12hr 00-00 00-00 00-00
Rain shwrs S L L C C S S C C L L C C C C D
Tstms S L L C C S C L L C S S
Heat index 99101 96 92 91
Max heat 94 91 102 102 92 93
Date 07/24 Fri 07/25/25 Sat 07/26/25 Sun 07/27/25 Mon 07/28/25
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 87 73 90 74 93 75 94 75 93
Temp 85 79 74 76 89 81 75 77 91 84 77 78 92 84 76 77 91 83
Dewpt 74 75 74 76 74 75 75 75 74 74 74 74 73 73 73 73 74 74
PWind dir SE S S SW SW SW W SW W
Wind char LT LT LT LT LT LT LT LT LT
Avg clouds B2 B2 FW FW SC B1 FW FW FW B1 FW FW FW B1 SC FW SC B1
PoP 12hr 80 10 50 10 30 10 30 20 50
Rain shwrs D D S C C C S C
Tstms C L S C C C S C
$$
GAZ099-220800-
Metter-Candler GA
32.40N 82.06W Elev. 197 ft
806 PM EDT Mon Jul 21 2025
Date 07/21/25 Tue 07/22/25 Wed 07/23/25 Thu
EDT 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08
UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12
Min/Max 75 97 73 90 73
Temp 81 79 76 78 89 95 92 82 77 75 74 75 83 88 85 80 76 75 74 75
Dewpt 73 74 73 74 75 75 74 76 74 75 74 75 76 75 75 75 76 75 74 74
RH 77 85 90 88 64 53 56 82 90100100100 80 66 72 85100100100 97
Wind dir W W W NW N N NE E E NE NE NE NE E E E E E E E
Wind spd 2 2 2 2 3 4 4 3 2 2 3 5 8 8 8 4 2 2 2 3
Clouds B1 SC FW FW FW B1 B1 B2 B2 B1 B1 B1 B1 B2 B2 B1 B1 B1 B1 B1
PoP 12hr 20 70 60 70 30
QPF 12hr 0 0.06 0.08 0.48 0.02
Snow 12hr 00-00 00-00 00-00
Rain shwrs S C C L L C C L L C C C C C
Tstms S C C C S S L L C
Heat index 99107102 91 98 94
Max heat 94 90 107 108 98 98
Heat Y Y Y
Date 07/24 Fri 07/25/25 Sat 07/26/25 Sun 07/27/25 Mon 07/28/25
EDT 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20
UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
Max/Min 90 73 93 74 95 75 97 75 97
Temp 88 82 75 75 91 84 76 76 93 87 77 77 95 88 78 78 95 87
Dewpt 75 74 74 74 73 74 73 73 73 73 72 73 73 72 72 73 72 73
PWind dir SE SE S SW SW W W W W
Wind char LT LT LT LT LT LT LT LT LT
Avg clouds B1 B2 SC FW FW B1 SC FW FW B1 SC FW FW B1 SC FW FW B1
PoP 12hr 80 20 50 10 30 10 30 20 50
Rain shwrs C D S C C C S C
Tstms C L S C C C S C
$$
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