Point Forecast Matrices
Issued by NWS Charleston, SC
Issued by NWS Charleston, SC
522
FOUS52 KCHS 231541
PFMCHS
Point Forecast Matrices
National Weather Service Charleston SC
1141 AM EDT Sat Aug 23 2025
SCZ050-232000-
Charleston International Airport-Charleston SC
32.91N 80.03W Elev. 45 ft
1141 AM EDT Sat Aug 23 2025
Date Sat 08/23/25 Sun 08/24/25 Mon 08/25/25
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 79 71 86 72 90
Temp 77 77 76 75 74 73 73 78 83 83 79 75 74 72 74 83 88 86 81
Dewpt 72 73 72 72 72 72 72 72 72 72 72 72 72 71 72 72 71 71 71
RH 85 87 87 90 93 97 97 82 70 70 79 90 93 97 93 70 57 61 72
Wind dir E E NE NE N NE N N N W S SW W W W NW W SW SW
Wind spd 10 10 6 5 3 4 5 5 5 4 3 2 3 3 4 5 5 6 5
Clouds OV OV OV B2 OV OV B2 B2 B2 B2 B1 SC SC FW FW FW B1 B1 FW
PoP 12hr 80 50 60 10 30
QPF 12hr 0.91 0.24 0.15 0 0.01
Snow 12hr 00-00 00-00 00-00
Rain shwrs D C C C C C C C L L C C
Tstms L C C C S S S C C C C
Heat index 94 91
Max heat 90 94 94
Coast Flood Y
Flood A A A A
Date Tue 08/26/25 Wed 08/27/25 Thu 08/28/25 Fri 08/29/25
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 71 88 68 84 67 83 67 82
Temp 75 72 85 78 72 70 81 75 69 69 81 75 69 69 80 74
Dewpt 70 65 65 67 66 64 62 64 63 63 63 64 64 64 62 63
PWind dir NW NE NE NE NE NE NE NE
Wind char LT LT LT GN LT GN LT GN
Avg clouds FW FW FW SC SC B1 B1 SC FW FW SC SC SC B1 SC B1
PoP 12hr 5 10 5 20 5 20 20 30
Rain shwrs S S S S S C
Tstms S S C
$$
GAZ118-232000-
Savannah International Airport-Inland Chatham GA
32.12N 81.20W Elev. 50 ft
1141 AM EDT Sat Aug 23 2025
Date Sat 08/23/25 Sun 08/24/25 Mon 08/25/25
EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20
UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00
Max/Min 81 71 87 72 91
Temp 81 80 76 74 73 72 72 79 84 85 79 75 74 72 73 84 89 89 81
Dewpt 76 76 74 74 73 72 72 75 75 75 74 73 72 72 73 75 73 72 71
RH 85 88 94100100100100 88 74 72 85 94 93100100 74 59 57 72
Wind dir E NE NE NE N N N N N W SW SW W W W NW W W W
Wind spd 5 6 4 2 2 2 3 4 3 3 2 2 2 2 2 4 4 5 3
Clouds OV OV OV OV OV B2 B1 B2 B2 B2 B1 SC FW FW FW FW SC SC FW
PoP 12hr 90 50 60 10 20
QPF 12hr 0.76 0.07 0.09 0 0.01
Snow 12hr 00-00 00-00 00-00
Rain shwrs D D C C S S S L L S S
Tstms D L C C S S C C S S
Heat index 92 94 92 97 96
Max heat 92 94 97 98
Flood A A A A
Date Tue 08/26/25 Wed 08/27/25 Thu 08/28/25 Fri 08/29/25
EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20
UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
Min/Max 68 90 69 85 68 84 69 83
Temp 74 69 88 80 72 70 83 76 70 69 82 75 70 70 81 74
Dewpt 66 64 67 67 65 64 66 65 64 64 65 65 64 65 66 65
PWind dir NW N N NE NE E NE NE
Wind char LT LT LT LT LT LT LT LT
Avg clouds FW FW FW FW SC SC SC SC FW FW SC B1 B1 SC SC B1
PoP 12hr 5 10 5 20 5 30 20 40
Rain shwrs S C S S S C
Tstms S C S C
$$
SCZ050-232000-
Charleston Waterfront-Charleston SC
32.78N 79.94W Elev. 10 ft
1141 AM EDT Sat Aug 23 2025
Date Sat 08/23/25 Sun 08/24/25 Mon 08/25/25
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 79 74 86 74 89
Temp 78 78 77 76 75 74 74 79 84 84 79 77 76 74 76 83 87 86 82
Dewpt 76 76 75 75 75 74 74 75 76 76 75 75 74 74 74 75 75 75 75
RH 94 94 94 97100100100 88 77 77 88 94 94100 94 77 68 70 79
Wind dir NE E NE NE NE N N N N S SW SW W W NW NW SW SW SW
Wind spd 11 10 8 5 3 4 5 5 5 5 3 3 3 3 3 4 5 6 5
Clouds OV OV OV B2 OV OV B2 B2 B2 B2 B1 SC SC FW FW FW SC SC SC
PoP 12hr 80 60 60 20 20
QPF 12hr 1.00 0.42 0.34 0 0
Snow 12hr 00-00 00-00 00-00
Rain shwrs D C L C C C C C L L S S S S
Tstms L C C C C C S S C C S S S S
Heat index 92 92 90 96 95
Max heat 92 94 96 96
Coast Flood Y
Flood A A A A
Date Tue 08/26/25 Wed 08/27/25 Thu 08/28/25 Fri 08/29/25
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 86 71 82 70 82 70 82
Temp 77 74 85 80 75 71 80 76 73 72 80 76 72 72 80 76
Dewpt 72 68 69 70 68 66 67 67 65 65 65 66 66 66 66 66
PWind dir NW NE NE NE NE NE NE NE
Wind char LT LT LT GN LT GN LT GN
Avg clouds FW FW FW FW SC B1 B1 SC FW FW SC SC SC B1 B1 B1
PoP 12hr 10 10 10 20 10 20 20 30
Rain shwrs S S S S C C
Tstms S S S S S C
$$
SCZ048-232000-
Beaufort Marine Corps Air Station-Beaufort SC
32.48N 80.72W Elev. 37 ft
1141 AM EDT Sat Aug 23 2025
Date Sat 08/23/25 Sun 08/24/25 Mon 08/25/25
EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20
UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00
Max/Min 80 71 86 72 90
Temp 79 78 75 75 74 73 73 78 84 84 79 75 74 72 73 83 88 88 81
Dewpt 76 75 74 74 73 72 72 74 74 74 74 73 73 72 73 75 74 73 73
RH 91 91 97 97 97 97 97 88 72 72 85 94 97100100 77 63 61 77
Wind dir E NE NE NE N N N N N SW SW SW W W W NW W SW SW
Wind spd 8 8 5 3 2 3 4 4 3 3 2 2 2 2 3 3 4 5 3
Clouds OV OV OV OV B2 OV B2 B2 B1 B1 B1 SC FW FW FW FW SC SC FW
PoP 12hr 90 50 50 10 20
QPF 12hr 0.45 0.10 0.09 0 0.01
Snow 12hr 00-00 00-00 00-00
Rain shwrs D L C C C S S S C C S S
Tstms L L C C S S S C C S S
Heat index 91 91 90 97 96
Max heat 91 93 97 98
Coast Flood Y
Flood A A A A
Date Tue 08/26/25 Wed 08/27/25 Thu 08/28/25 Fri 08/29/25
EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20
UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
Min/Max 70 88 69 84 68 83 68 82
Temp 74 71 86 78 73 70 82 75 70 69 81 75 71 70 80 74
Dewpt 68 65 67 68 66 64 66 65 64 64 65 65 64 65 66 65
PWind dir NW N N NE NE NE NE NE
Wind char LT LT LT LT LT LT LT LT
Avg clouds FW FW FW FW SC B1 B1 SC FW FW SC SC B1 SC SC B1
PoP 12hr 5 10 5 20 5 20 20 30
Rain shwrs S S S S S C
Tstms S S S C
$$
SCZ043-232000-
Walterboro-Inland Colleton SC
32.91N 80.67W Elev. 98 ft
1141 AM EDT Sat Aug 23 2025
Date Sat 08/23/25 Sun 08/24/25 Mon 08/25/25
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 77 69 84 69 89
Temp 77 76 74 72 71 71 71 78 82 82 76 72 71 69 71 82 87 87 79
Dewpt 73 73 72 71 71 70 71 72 72 71 72 72 71 69 71 72 70 70 71
RH 87 90 93 97100 97100 82 72 69 87100100100100 72 57 57 77
Wind dir E E E NE N N N N N N SW SW W W W W W W W
Wind spd 8 6 4 2 2 2 3 4 4 2 2 1 1 1 2 3 5 5 2
Clouds OV OV OV B2 B2 OV B1 B2 B1 B1 B1 SC FW SC SC FW SC SC FW
PoP 12hr 80 40 50 5 20
QPF 12hr 0.37 0.04 0.08 0 0.01
Snow 12hr 00-00 00-00 00-00
Rain shwrs L D C C S C C S S
Tstms L C S S C C S S
Heat index 92 92
Max heat 92 93
Flood A A A A
Date Tue 08/26/25 Wed 08/27/25 Thu 08/28/25 Fri 08/29/25
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 67 85 66 82 64 81 64 80
Temp 71 69 84 76 69 67 80 73 66 65 79 72 66 66 78 72
Dewpt 68 64 64 65 64 62 62 64 63 63 62 64 64 64 62 64
PWind dir NW N N NE NE NE NE E
Wind char LT LT LT LT LT LT LT LT
Avg clouds FW FW FW FW SC B1 B1 FW FW FW SC SC SC B1 SC B1
PoP 12hr 0 5 5 10 5 20 20 30
Rain shwrs S S C
Tstms S S
$$
GAZ099-232000-
Metter-Candler GA
32.40N 82.06W Elev. 197 ft
1141 AM EDT Sat Aug 23 2025
Date Sat 08/23/25 Sun 08/24/25 Mon 08/25/25
EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20
UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00
Max/Min 80 70 86 70 91
Temp 80 79 75 73 72 71 71 78 84 84 79 74 72 70 72 82 89 89 81
Dewpt 74 73 73 72 71 71 71 72 73 72 72 73 72 70 71 72 70 66 66
RH 82 82 94 97 97100100 82 70 67 79 97100100 97 72 54 47 60
Wind dir E NE E NE NE NE N N N NW W W W W W NW NW W W
Wind spd 5 5 3 2 1 2 2 3 3 3 1 1 1 2 2 4 5 5 2
Clouds OV OV OV OV B2 OV SC B2 B1 B1 SC SC FW FW FW FW FW FW CL
PoP 12hr 90 40 40 5 10
QPF 12hr 0.53 0.05 0.05 0 0
Snow 12hr 00-00 00-00 00-00
Rain shwrs L D C S C C
Tstms L L S C C
Heat index 90 90 94 92
Max heat 90 92 94 95
Flood A A A A
Date Tue 08/26/25 Wed 08/27/25 Thu 08/28/25 Fri 08/29/25
EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20
UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
Min/Max 65 88 66 84 65 85 65 84
Temp 70 66 86 77 69 67 82 75 67 66 83 75 67 67 81 74
Dewpt 61 59 63 63 61 60 62 62 62 61 61 62 63 62 63 62
PWind dir NW N N NE NE E E E
Wind char LT LT LT LT LT LT LT LT
Avg clouds CL FW FW FW SC SC SC FW FW FW SC SC SC SC B1 B1
PoP 12hr 0 0 5 5 5 20 20 30
Rain shwrs S S S C
Tstms S S S
$$
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