Point Forecast Matrices
Issued by NWS Charleston, SC
Issued by NWS Charleston, SC
538
FOUS52 KCHS 220246
PFMCHS
Point Forecast Matrices
National Weather Service Charleston SC
1046 PM EDT Thu Aug 21 2025
SCZ050-220800-
Charleston International Airport-Charleston SC
32.91N 80.03W Elev. 45 ft
1046 PM EDT Thu Aug 21 2025
Date 08/21/25 Fri 08/22/25 Sat 08/23/25 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 75 84 72 82 72
Temp 79 77 76 76 80 81 80 77 76 75 74 74 78 80 79 75 74 73 72 73
Dewpt 74 73 73 73 73 73 73 73 72 72 72 72 73 72 72 72 72 72 71 72
RH 85 87 90 90 79 77 79 87 87 90 93 93 85 77 79 90 93 97 97 97
Wind dir SW SW N NE E E E E E E E E E E E E E NE N N
Wind spd 2 2 3 5 8 9 9 6 5 5 5 6 10 10 10 8 5 3 4 5
Clouds B1 SC B1 B1 B1 OV B2 OV B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B1
PoP 12hr 40 80 50 70 50
QPF 12hr 0 0.41 0.66 0.70 0.12
Snow 12hr 00-00 00-00 00-00
Rain shwrs C S C C C D L C C C C L L L L C C C C C
Tstms C S C C C D L C C C C C C L L C S S S
Flood A A A A A A A A A A A A A A
Date 08/24 Mon 08/25/25 Tue 08/26/25 Wed 08/27/25 Thu 08/28/25
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 86 72 90 71 89 70 85 68 83
Temp 84 78 74 74 88 80 75 73 87 80 74 72 83 76 70 70 81 75
Dewpt 72 73 72 72 71 72 72 69 65 68 68 67 65 67 65 64 64 66
PWind dir NW W W W NE W N NE NE
Wind char LT LT LT LT LT LT LT LT GN
Avg clouds B1 B2 B1 SC SC B1 FW FW FW FW FW SC SC B1 SC SC SC B1
PoP 12hr 60 20 30 5 10 5 30 20 40
Rain shwrs C L S S C C S S S C
Tstms S C S C C S S C
$$
GAZ118-220800-
Savannah International Airport-Inland Chatham GA
32.12N 81.20W Elev. 50 ft
1046 PM EDT Thu Aug 21 2025
Date 08/21/25 Fri 08/22/25 Sat 08/23/25 Sun
EDT 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08
UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12
Min/Max 74 85 73 84 72
Temp 77 76 75 75 81 83 81 77 76 75 74 74 80 82 81 77 74 73 72 73
Dewpt 75 74 74 74 76 76 76 75 74 74 74 74 76 76 75 74 74 73 72 72
RH 94 94 97 97 85 80 85 94 94 97100100 88 82 82 90100100100 97
Wind dir S NE NE NE E SE E E E E NE NE E E E E NE N N N
Wind spd 2 2 2 2 4 5 6 5 3 2 3 4 5 6 6 4 2 2 2 3
Clouds B1 B1 SC SC B1 OV OV B2 B2 B2 B2 B2 B2 OV OV B2 B2 B1 B1 B1
PoP 12hr 40 90 70 90 40
QPF 12hr 0.14 0.42 0.50 0.61 0.04
Snow 12hr 00-00 00-00 00-00
Rain shwrs C S S C D L L L C C L L D D C C S S C
Tstms C S S C D L C C C C S C L L C S S S
Heat index 91
Max heat 92 91
Flood A A A A A A A A A A A A A A
Date 08/24 Mon 08/25/25 Tue 08/26/25 Wed 08/27/25 Thu 08/28/25
EDT 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20
UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
Max/Min 87 72 90 70 91 71 87 68 84
Temp 85 78 74 73 88 81 74 72 89 81 74 72 85 79 72 68 82 76
Dewpt 74 74 72 72 74 74 71 68 68 69 68 67 68 68 65 64 67 66
PWind dir NW W W W N SW N NE NE
Wind char LT LT LT LT LT LT LT LT LT
Avg clouds B1 B2 B1 SC SC B1 SC FW FW FW SC SC SC B1 SC SC SC B1
PoP 12hr 60 20 30 5 10 5 20 20 40
Rain shwrs C L S C S S S C
Tstms S L S C S S S C
$$
SCZ050-220800-
Charleston Waterfront-Charleston SC
32.78N 79.94W Elev. 10 ft
1046 PM EDT Thu Aug 21 2025
Date 08/21/25 Fri 08/22/25 Sat 08/23/25 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 75 83 74 81 73
Temp 80 78 77 77 81 81 81 79 78 76 76 76 79 79 79 78 76 75 74 75
Dewpt 76 76 75 76 76 77 76 75 74 75 74 75 76 77 76 75 74 74 74 74
RH 88 94 94 97 85 88 85 88 88 97 94 97 91 94 91 91 94 97100 97
Wind dir SW SW N NE E E E E E E E E E E E E E NE N N
Wind spd 2 2 3 4 6 10 10 8 5 5 5 6 10 11 11 8 5 3 4 4
Clouds B1 B1 B1 B1 B2 OV B2 OV B2 B2 B2 B2 B2 B2 B2 B2 B2 B1 B2 B2
PoP 12hr 50 80 60 70 60
QPF 12hr 0.01 0.27 0.87 0.73 0.16
Snow 12hr 00-00 00-00 00-00
Rain shwrs C C C C L D L L L L L L L L L L L C C C
Tstms C C C C L D L C C C C C C L L C C C C S
Flood A A A A A A A A A A A A A A
Date 08/24 Mon 08/25/25 Tue 08/26/25 Wed 08/27/25 Thu 08/28/25
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 86 74 88 74 88 73 84 70 82
Temp 84 80 76 76 86 81 77 75 86 81 77 75 83 79 74 71 81 77
Dewpt 76 76 75 75 75 75 75 71 70 71 70 69 69 68 66 66 67 67
PWind dir NE W SW W NE W NE NE NE
Wind char LT LT LT LT LT LT LT LT GN
Avg clouds B2 B2 SC SC SC B1 FW FW FW FW FW SC SC SC SC SC B1 B1
PoP 12hr 60 20 30 10 10 10 20 20 40
Rain shwrs C L S S C S S S C C
Tstms S C S C S S S S C
$$
SCZ048-220800-
Beaufort Marine Corps Air Station-Beaufort SC
32.48N 80.72W Elev. 37 ft
1046 PM EDT Thu Aug 21 2025
Date 08/21/25 Fri 08/22/25 Sat 08/23/25 Sun
EDT 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08
UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12
Min/Max 74 84 73 82 72
Temp 78 76 75 75 81 82 80 77 76 75 74 74 78 80 80 76 74 73 72 73
Dewpt 75 74 73 74 76 76 76 75 74 74 72 73 76 76 75 74 74 72 72 72
RH 91 94 94 97 85 82 88 94 94 97 93 97 94 88 85 94100 97100 97
Wind dir SW W N NE E E E E E E E NE E E E E E NE N N
Wind spd 2 2 2 2 5 6 6 5 4 3 4 5 8 8 8 5 3 2 3 3
Clouds B1 B1 B1 B1 B2 OV B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B1 B1 B2
PoP 12hr 40 90 70 80 50
QPF 12hr 0.08 0.48 0.35 0.53 0.08
Snow 12hr 00-00 00-00 00-00
Rain shwrs C S C C L D L L L L L L L D D C C C C C
Tstms C S C C C D L C C C C S C L L C S S S
Flood A A A A A A A A A A A A A A
Date 08/24 Mon 08/25/25 Tue 08/26/25 Wed 08/27/25 Thu 08/28/25
EDT 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20
UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
Max/Min 86 72 89 71 89 71 85 68 83
Temp 84 78 74 74 87 80 75 73 88 80 74 73 83 78 71 70 82 75
Dewpt 75 74 73 72 74 75 72 69 68 70 68 67 68 68 65 64 67 66
PWind dir NW W W W NW SW NE NE NE
Wind char LT LT LT LT LT LT LT LT LT
Avg clouds B1 B2 B1 SC SC B1 FW FW FW FW FW SC SC SC SC SC SC B1
PoP 12hr 60 20 30 5 10 5 20 20 40
Rain shwrs C L S C S S S S C
Tstms S L S C S S C
$$
SCZ043-220800-
Walterboro-Inland Colleton SC
32.91N 80.67W Elev. 98 ft
1046 PM EDT Thu Aug 21 2025
Date 08/21/25 Fri 08/22/25 Sat 08/23/25 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 71 82 70 80 69
Temp 76 74 73 73 80 79 77 74 73 72 71 72 77 78 78 73 72 71 69 71
Dewpt 74 73 73 73 75 74 74 74 73 72 71 72 73 73 73 73 72 71 69 71
RH 94 97100100 85 85 90100100100100100 87 85 85100100100100100
Wind dir S S N NE E E S E E E NE NE E E E E E NE N N
Wind spd 1 1 2 3 5 5 5 4 2 2 4 5 6 8 6 4 2 2 2 3
Clouds SC B1 SC B1 B2 B2 OV OV B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B2 B1
PoP 12hr 30 80 50 70 30
QPF 12hr 0.13 1.30 0.29 0.60 0.04
Snow 12hr 00-00 00-00 00-00
Rain shwrs S S C S C D L C C C C C C L L C C S S C
Tstms S S S S C D L C C C S S C L L C S S
Flood A A A A A A A A A A A A A A
Date 08/24 Mon 08/25/25 Tue 08/26/25 Wed 08/27/25 Thu 08/28/25
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 85 69 88 68 87 67 82 65 81
Temp 83 77 72 71 86 78 72 70 85 77 71 69 80 74 67 67 79 73
Dewpt 72 73 72 71 71 72 70 67 65 67 66 66 66 67 64 64 63 66
PWind dir NW W W W NW W NE NE NE
Wind char LT LT LT LT LT LT LT LT LT
Avg clouds B1 B1 SC SC SC B1 FW FW FW FW SC SC SC B1 SC SC SC B1
PoP 12hr 50 10 30 0 5 5 20 10 30
Rain shwrs C C C S S C
Tstms C C S C
$$
GAZ099-220800-
Metter-Candler GA
32.40N 82.06W Elev. 197 ft
1046 PM EDT Thu Aug 21 2025
Date 08/21/25 Fri 08/22/25 Sat 08/23/25 Sun
EDT 3hrly 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08
UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12
Min/Max 73 87 71 84 71
Temp 76 75 74 74 81 85 83 77 74 73 72 73 78 82 81 76 74 73 71 72
Dewpt 74 73 73 73 75 74 74 74 73 73 72 72 73 74 73 73 73 72 71 71
RH 94 94 97 97 82 70 74 90 97100100 97 85 77 77 90 97 97100 97
Wind dir SE S SE E E E E E E E E NE E E E E E NE NE N
Wind spd 1 1 1 2 3 4 5 3 2 2 2 3 5 5 5 3 2 1 2 2
Clouds B1 SC SC B1 B2 B1 B2 B2 B2 B1 B2 B2 B2 OV OV B2 B1 B1 B1 B1
PoP 12hr 40 90 60 80 30
QPF 12hr 0.05 1.08 0.30 0.55 0.03
Snow 12hr 00-00 00-00 00-00
Rain shwrs C S C C D L L C C C C D D C C S
Tstms C C C L C S C C C L L C
Heat index 93 90
Max heat 94 93
Flood A A A A A A A A A A A A A A
Date 08/24 Mon 08/25/25 Tue 08/26/25 Wed 08/27/25 Thu 08/28/25
EDT 6hrly 14 20 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20
UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
Max/Min 86 70 90 67 90 67 85 65 85
Temp 84 78 72 72 88 81 72 69 88 80 71 69 83 77 69 66 83 75
Dewpt 72 73 72 72 71 71 67 64 65 65 65 64 65 65 63 61 63 64
PWind dir NW W NW NW N NW N NE NE
Wind char LT LT LT LT LT LT LT LT LT
Avg clouds B1 B1 SC SC SC SC FW FW FW FW FW SC SC SC SC SC SC B1
PoP 12hr 50 10 20 0 5 0 20 10 30
Rain shwrs S C S S C
Tstms C S S C
$$
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