Point Forecast Matrices
Issued by NWS Charleston, SC
Issued by NWS Charleston, SC
544
FOUS52 KCHS 171742
PFMCHS
Point Forecast Matrices
National Weather Service Charleston SC
142 PM EDT Thu Jul 17 2025
SCZ050-180800-
Charleston International Airport-Charleston SC
32.91N 80.03W Elev. 45 ft
142 PM EDT Thu Jul 17 2025
Date 07/17/25 Fri 07/18/25 Sat 07/19/25 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 95 77 97 79
Temp 89 82 79 78 78 79 88 93 91 84 80 79 77 80 89 95 93 85 82 81 79 81
Dewpt 74 74 75 76 76 76 75 75 75 75 76 76 75 75 74 73 73 75 75 76 75 74
RH 61 77 88 94 94 91 66 56 60 74 88 91 94 85 61 49 52 72 79 85 88 79
Wind dir S S S S SW SW SW SW S S SW SW SW SW W SW SW S SW SW SW W
Wind spd 13 10 8 6 5 6 8 8 11 10 8 6 6 6 8 9 12 10 9 8 8 8
Clouds SC FW FW FW SC SC SC B1 SC SC FW FW FW FW FW SC SC FW SC FW FW FW
PoP 12hr 0 30 5 20 5
QPF 12hr 0 0 0 0 0
Snow 12hr 00-00 00-00 00-00
Rain shwrs S C S S S
Tstms S C S S S
Heat index 98 98105102 92 98105102 94
Max heat 101 105 105 105 105 90
Date 07/20 Mon 07/21/25 Tue 07/22/25 Wed 07/23/25 Thu 07/24/25
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 98 78 96 76 90 75 90 75 92
Temp 96 86 80 80 94 83 78 78 88 80 77 78 88 80 77 77 89 82
Dewpt 72 74 75 75 75 77 75 75 75 74 73 74 74 74 73 74 72 74
PWind dir W SW W E NE E E E E
Wind char GN LT LT LT GN LT GN LT GN
Avg clouds FW SC SC SC SC B2 B2 B2 B2 B2 B1 SC B1 B1 SC SC SC B1
PoP 12hr 20 20 60 40 70 30 50 20 40
Rain shwrs S S S L C S C L C S C C S S C
Tstms S S S L C S C L C S C C S S C
$$
GAZ118-180800-
Savannah International Airport-Inland Chatham GA
32.12N 81.20W Elev. 50 ft
142 PM EDT Thu Jul 17 2025
Date 07/17/25 Fri 07/18/25 Sat 07/19/25 Sun
EDT 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08
UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12
Min/Max 76 95 76 98 79
Temp 91 84 80 78 77 78 89 93 91 84 80 78 76 78 89 96 96 87 83 81 79 80
Dewpt 76 76 76 76 76 75 76 74 75 76 75 74 73 74 75 73 71 73 74 73 72 74
RH 62 77 88 94 97 91 66 54 60 77 85 88 90 88 64 48 45 63 74 77 79 82
Wind dir S S S S S SW SW S S S S SW SW SW W W SW S S SW W W
Wind spd 10 9 5 4 3 3 4 5 8 6 5 3 3 4 5 6 8 6 5 4 4 5
Clouds FW SC FW FW FW FW CL B1 SC SC SC FW CL FW FW SC SC FW FW CL CL FW
PoP 12hr 5 30 5 20 5
QPF 12hr 0 0.06 0 0 0
Snow 12hr 00-00 00-00 00-00
Rain shwrs S C S S S
Tstms S C S S S
Heat index 103 93 100103102 93 99106104 94 90
Max heat 106 103 106 90 106 106 92
Date 07/20 Mon 07/21/25 Tue 07/22/25 Wed 07/23/25 Thu 07/24/25
EDT 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20
UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
Max/Min 99 79 98 77 92 76 91 76 92
Temp 97 89 81 81 96 86 80 77 90 82 78 78 89 81 77 77 90 82
Dewpt 73 74 74 74 75 75 77 76 77 76 76 76 76 76 75 75 76 75
PWind dir W SW W SW NE NE E E E
Wind char LT LT LT LT LT LT LT LT LT
Avg clouds FW SC SC SC SC B1 B2 B1 B1 B2 B2 B1 B1 B2 SC FW SC B1
PoP 12hr 20 20 50 40 70 30 60 20 50
Rain shwrs S S C C C L C C L S S C
Tstms S S C C C L C C L S S C
$$
SCZ050-180800-
Charleston Waterfront-Charleston SC
32.78N 79.94W Elev. 10 ft
142 PM EDT Thu Jul 17 2025
Date 07/17/25 Fri 07/18/25 Sat 07/19/25 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 79 93 78 95 80
Temp 89 84 81 81 79 81 88 91 91 84 82 80 78 80 90 93 92 86 84 82 80 82
Dewpt 78 77 78 78 77 78 78 78 78 76 77 76 76 76 77 76 77 77 77 77 76 75
RH 70 80 91 91 94 91 72 66 66 77 85 88 94 88 66 58 62 75 80 85 88 79
Wind dir S S S SW SW SW SW S S SW SW SW SW W SW SW SW SW SW SW SW W
Wind spd 13 10 8 6 6 5 8 10 12 10 8 6 6 5 8 11 12 10 9 8 6 6
Clouds SC FW SC FW FW SC SC SC SC SC FW FW FW FW FW SC FW FW SC FW FW FW
PoP 12hr 0 20 5 20 5
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 103 94 101106105 93 90 102106106 97 94 90
Max heat 106 90 106 107 92 106 107 96
Date 07/20 Mon 07/21/25 Tue 07/22/25 Wed 07/23/25 Thu 07/24/25
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 97 80 95 77 89 76 89 76 90
Temp 95 86 82 82 93 84 80 79 87 82 78 78 87 82 78 78 88 83
Dewpt 75 76 77 76 78 78 76 76 78 75 75 75 78 75 74 75 75 75
PWind dir SW SW SW E NE E E E E
Wind char GN LT LT LT GN LT GN LT GN
Avg clouds FW SC SC SC SC B1 B2 B1 B2 B2 B2 B1 B1 B1 SC SC B1 B1
PoP 12hr 20 20 50 50 60 40 50 20 40
Rain shwrs S S S S C C C C L C C C C S S S C
Tstms S S S S C C C C L C S C C S S S C
$$
SCZ048-180800-
Beaufort Marine Corps Air Station-Beaufort SC
32.48N 80.72W Elev. 37 ft
142 PM EDT Thu Jul 17 2025
Date 07/17/25 Fri 07/18/25 Sat 07/19/25 Sun
EDT 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08
UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12
Min/Max 77 94 77 96 79
Temp 89 82 80 78 77 79 88 92 91 83 81 79 77 79 89 94 94 86 83 81 79 81
Dewpt 77 76 77 76 76 77 76 76 76 76 76 75 74 75 76 75 73 75 76 75 73 74
RH 68 82 91 94 97 94 68 60 62 80 85 88 90 88 66 54 51 70 80 82 82 79
Wind dir S S S S SW SW SW S S S S SW SW SW W SW SW S S SW SW W
Wind spd 10 8 5 4 4 4 4 6 9 8 5 4 4 4 5 6 9 6 5 5 5 5
Wind gust 18
Clouds SC FW FW FW FW FW FW B1 SC FW FW FW CL CL FW FW FW FW FW FW FW FW
PoP 12hr 5 30 5 10 5
QPF 12hr 0 0 0 0 0
Snow 12hr 00-00 00-00 00-00
Rain shwrs S C C
Tstms S C C
Heat index 102 99105103 91 100106103 95 91
Max heat 103 105 106 106 106 94
Date 07/20 Mon 07/21/25 Tue 07/22/25 Wed 07/23/25 Thu 07/24/25
EDT 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20
UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
Max/Min 97 79 96 77 90 76 90 75 91
Temp 95 87 81 81 94 85 79 78 88 80 78 78 88 80 77 77 89 81
Dewpt 74 74 74 75 76 77 76 76 77 77 75 75 77 76 75 75 75 75
PWind dir W SW W SE NE E E E E
Wind char LT LT LT LT LT LT LT LT LT
Avg clouds FW SC SC SC SC B1 B1 B1 B1 B2 B1 SC SC B1 SC FW SC B1
PoP 12hr 20 20 50 40 60 30 50 20 40
Rain shwrs S S C C S C L C S C S S C
Tstms S S C C S C L C S C S S C
$$
SCZ043-180800-
Walterboro-Inland Colleton SC
32.91N 80.67W Elev. 98 ft
142 PM EDT Thu Jul 17 2025
Date 07/17/25 Fri 07/18/25 Sat 07/19/25 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 93 74 95 76
Temp 89 81 77 76 74 77 87 91 90 83 79 76 74 77 88 93 93 86 81 78 76 79
Dewpt 74 74 75 76 74 75 75 74 73 75 75 74 73 75 74 73 71 73 73 73 72 74
RH 61 79 94100100 94 68 58 58 77 88 94 97 94 63 52 49 65 77 85 87 85
Wind dir S S S S SW SW SW SW S S S SW SW SW W SW SW SW SW SW SW W
Wind spd 10 6 5 3 2 3 5 5 6 5 4 3 3 4 5 6 9 5 5 4 4 5
Clouds SC FW FW FW SC FW FW B1 SC FW FW FW FW FW FW FW FW FW FW FW FW FW
PoP 12hr 5 30 5 20 5
QPF 12hr 0 0.05 0 0 0
Snow 12hr 00-00 00-00 00-00
Rain shwrs S C S S S
Tstms S C S S S
Heat index 98 96101 98 90 97102100 93
Max heat 101 102 102 102 102 90
Date 07/20 Mon 07/21/25 Tue 07/22/25 Wed 07/23/25 Thu 07/24/25
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 96 76 94 74 89 73 89 73 90
Temp 94 86 78 78 92 83 76 76 87 79 74 76 88 80 74 75 88 80
Dewpt 73 74 74 75 75 77 76 76 76 75 73 74 73 74 73 74 73 74
PWind dir W SW W E NE NE E E E
Wind char GN LT LT LT LT LT LT LT LT
Avg clouds FW SC SC SC SC B1 B1 B1 B1 B2 B1 SC SC B1 SC SC SC B1
PoP 12hr 20 20 50 40 70 30 50 20 40
Rain shwrs S S C C S C L C S C S C
Tstms S S C C C L S S C S C
$$
GAZ099-180800-
Metter-Candler GA
32.40N 82.06W Elev. 197 ft
142 PM EDT Thu Jul 17 2025
Date 07/17/25 Fri 07/18/25 Sat 07/19/25 Sun
EDT 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08
UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12
Min/Max 73 96 75 97 77
Temp 91 85 79 77 75 77 88 94 93 87 80 77 75 77 88 95 94 88 82 79 77 79
Dewpt 73 74 75 74 74 74 75 73 72 74 74 74 73 74 75 72 71 72 70 71 71 74
RH 56 70 88 90 97 90 66 51 51 65 82 90 94 90 66 48 47 59 67 77 82 85
Wind dir S S S S S SW SW SW S S S SW SW W W SW SW SW SW SW W W
Wind spd 5 4 3 2 2 1 2 4 4 3 2 2 2 2 5 6 6 3 2 2 3 3
Clouds SC SC SC FW FW FW FW SC SC SC SC FW CL FW CL FW FW FW FW CL CL FW
PoP 12hr 10 40 5 10 5
QPF 12hr 0 0 0 0 0
Snow 12hr 00-00 00-00 00-00
Rain shwrs S
Tstms S
Heat index 100 93 98103101 95 98104101 95
Max heat 103 90 103 104 90 104 104 92
Date 07/20 Mon 07/21/25 Tue 07/22/25 Wed 07/23/25 Thu 07/24/25
EDT 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20
UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
Max/Min 98 76 98 75 93 74 93 73 92
Temp 96 89 79 78 96 87 77 77 91 82 76 76 91 83 75 75 90 83
Dewpt 72 73 74 75 74 74 75 75 75 76 74 73 72 75 74 73 72 73
PWind dir W W NW NW NE E NE E E
Wind char LT LT LT LT LT LT LT LT LT
Avg clouds FW SC SC SC FW B1 B1 SC B1 B2 B1 B1 SC B2 SC FW SC B1
PoP 12hr 20 20 50 40 70 30 60 20 40
Rain shwrs S S C C C L C S L S C
Tstms S S C C C L C S L S C
$$
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