Point Forecast Matrices
Issued by NWS Charleston, SC
Issued by NWS Charleston, SC
518
FOUS52 KCHS 180611
PFMCHS
Point Forecast Matrices
National Weather Service Charleston SC
211 AM EDT Fri Sep 18 2026
SCZ150-182000-
Charleston International Airport-Charleston SC
32.91N 80.03W Elev. 45 ft
211 AM EDT Fri Sep 18 2026
Date Fri 09/18/26 Sat 09/19/26 Sun 09/20/26
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 92 73 91 73 88
Temp 70 71 84 90 90 81 77 75 74 75 84 89 86 79 77 75 73 75 83 86 83 78
Dewpt 70 70 69 67 67 69 71 72 72 72 72 72 72 73 74 74 73 73 74 73 72 73
RH 100 97 61 47 47 67 82 90 93 90 67 57 63 82 90 97100 94 74 65 70 85
Wind dir N NW NW N S S SW N W NW NW SE SE E N N NE NE NE E SE SE
Wind spd 0 3 3 0 4 6 4 0 2 3 3 3 8 4 0 0 3 4 5 5 8 4
Clouds CL FW FW FW SC SC SC FW SC FW SC B1 B2 B1 B1 SC SC SC SC B1 B1 B1
PoP 12hr 5 10 50 30 50
QPF 12hr 0 0 0.16 0.16 0.12
Snow 12hr 00-00 00-00 00-00
Rain shwrs C C C C C C C C
Tstms C C C S C S
Heat index 93 93 90 96 92 90 93
Max heat 93 94 96 96 93 93
Date Mon 09/21/26 Tue 09/22/26 Wed 09/23/26 Thu 09/24/26
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 73 88 72 86 70 85
Temp 75 75 87 80 75 74 85 79 74 73 84 79 73 70 82 77
Dewpt 73 74 73 73 74 73 73 74 73 72 72 72 70 69 70 70
PWind dir E E E E NE NE NE NE
Wind char LT LT LT LT LT LT LT LT
Avg clouds SC SC B1 B1 B1 SC B1 B1 B1 SC B1 B1 B1 SC SC SC
PoP 12hr 5 50 40 70 20 40 10 20
Rain shwrs S C S C C L S S S C S
Tstms S C S S C S C S
$$
GAZ218-182000-
Savannah International Airport-Inland Chatham GA
32.12N 81.20W Elev. 50 ft
211 AM EDT Fri Sep 18 2026
Date Fri 09/18/26 Sat 09/19/26 Sun 09/20/26
EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20
UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00
Max/Min 93 72 93 73 89
Temp 71 72 84 91 91 81 77 75 73 74 85 91 88 80 77 75 73 75 83 87 84 78
Dewpt 70 70 70 68 69 69 71 72 70 70 72 72 73 73 74 73 73 73 75 74 74 74
RH 97 93 63 47 49 67 82 90 90 87 65 54 61 79 90 94100 94 77 65 72 88
Wind dir N N N NE SE S S W W W NW E SE SE SE N N N NE E E SE
Wind spd 2 3 3 3 5 4 2 1 1 1 2 2 6 4 1 0 1 3 4 5 6 3
Clouds CL FW CL SC SC SC SC SC FW FW FW SC SC SC SC SC SC SC SC B1 B1 B1
PoP 12hr 5 10 30 20 50
QPF 12hr 0 0 0.04 0.02 0.10
Snow 12hr 00-00 00-00 00-00
Rain shwrs S S S C C C C
Tstms S S S S C C
Heat index 95 96 91 99 96 90 95 91
Max heat 95 97 99 101 95 95
Date Mon 09/21/26 Tue 09/22/26 Wed 09/23/26 Thu 09/24/26
EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20
UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
Min/Max 72 88 73 88 72 87 71 86
Temp 74 74 86 80 75 74 86 80 74 73 85 79 74 71 83 78
Dewpt 73 73 75 74 74 73 75 74 73 72 74 73 71 69 72 71
PWind dir E E NE E NE NE NE NE
Wind char LT LT LT LT LT LT LT LT
Avg clouds SC SC B1 B1 B1 SC SC B1 B1 SC SC B1 B1 FW SC SC
PoP 12hr 5 50 20 60 20 40 10 30
Rain shwrs C C S C L S S C C
Tstms S C C S C S
$$
SCZ150-182000-
Charleston Waterfront-Charleston SC
32.78N 79.94W Elev. 10 ft
211 AM EDT Fri Sep 18 2026
Date Fri 09/18/26 Sat 09/19/26 Sun 09/20/26
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 75 90 75 87
Temp 73 73 84 89 87 81 79 77 75 76 84 88 85 80 78 77 76 75 83 86 83 80
Dewpt 72 72 72 72 72 73 74 74 74 74 75 76 75 76 76 75 75 75 77 77 76 76
RH 97 97 67 57 61 77 85 90 97 94 74 68 72 88 94 94 97100 82 75 80 88
Wind dir NW NW N SE S S SW W W NW NW SE SE E E E NE NE NE E SE SE
Wind spd 1 2 2 3 6 4 3 2 2 2 2 5 6 3 2 1 2 3 4 6 8 3
Clouds CL FW FW FW SC SC SC FW FW FW SC B1 SC SC SC SC SC SC SC B1 SC SC
PoP 12hr 5 10 40 40 40
QPF 12hr 0 0 0.05 0.22 0.05
Snow 12hr 00-00 00-00 00-00
Rain shwrs C S C C C C C C C C
Tstms C S C S C S
Heat index 90 95 94 92 98 94 91 97 91
Max heat 95 96 98 99 97 96
Date Mon 09/21/26 Tue 09/22/26 Wed 09/23/26 Thu 09/24/26
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 87 75 86 74 85 71 84
Temp 77 75 86 81 78 76 85 81 76 74 84 80 75 72 82 78
Dewpt 75 75 77 76 76 75 77 76 75 74 76 75 72 70 73 73
PWind dir E E E E NE NE NE NE
Wind char LT LT LT LT LT GN LT GN
Avg clouds SC B1 B1 B1 B1 SC B1 B1 B1 SC B1 B1 B1 SC SC SC
PoP 12hr 10 40 50 60 30 40 20 20
Rain shwrs S C S C C L C C C C S S S
Tstms S C S S C C S S C S S
$$
SCZ148-182000-
Beaufort Marine Corps Air Station-Beaufort SC
32.48N 80.72W Elev. 37 ft
211 AM EDT Fri Sep 18 2026
Date Fri 09/18/26 Sat 09/19/26 Sun 09/20/26
EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20
UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00
Max/Min 92 74 91 74 88
Temp 72 71 84 90 90 81 77 76 75 75 84 89 87 79 77 76 75 74 83 86 84 78
Dewpt 72 71 71 70 71 72 72 73 73 73 73 74 75 75 74 74 74 74 76 76 76 75
RH 100100 65 52 54 74 85 90 94 94 70 61 68 88 90 94 97100 80 72 77 91
Wind dir N N N NE S S S W W NW NW SE SE SE SE N NE N NE E SE SE
Wind spd 1 2 2 1 4 4 2 1 1 1 2 2 5 3 1 0 1 3 4 4 5 2
Clouds CL CL FW FW SC SC SC FW FW FW SC B1 SC SC SC SC SC SC SC B1 B1 B1
PoP 12hr 5 10 40 30 50
QPF 12hr 0 0 0.07 0.02 0.11
Snow 12hr 00-00 00-00 00-00
Rain shwrs C C C C C C C
Tstms C C S S C C
Heat index 96 96 90 98 96 91 96 93
Max heat 96 97 98 99 96 96
Date Mon 09/21/26 Tue 09/22/26 Wed 09/23/26 Thu 09/24/26
EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20
UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
Min/Max 74 87 74 87 73 86 71 84
Temp 75 74 85 81 76 75 85 79 74 74 84 79 74 71 82 78
Dewpt 74 74 76 75 74 74 77 75 74 73 75 74 71 70 73 72
PWind dir NE E NE E NE NE NE NE
Wind char LT LT LT LT LT LT LT LT
Avg clouds SC SC B1 B1 B1 SC SC B1 B1 SC SC B1 B1 SC SC SC
PoP 12hr 5 50 30 70 20 40 20 20
Rain shwrs C C C C L S S S C S S S
Tstms S C S C S C S S
$$
SCZ043-182000-
Walterboro-Inland Colleton SC
32.91N 80.67W Elev. 98 ft
211 AM EDT Fri Sep 18 2026
Date Fri 09/18/26 Sat 09/19/26 Sun 09/20/26
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 92 71 91 71 88
Temp 67 69 84 90 90 80 75 73 71 72 83 89 86 77 74 72 72 71 82 86 83 76
Dewpt 67 69 69 68 68 69 69 70 68 70 71 72 72 73 73 72 71 71 73 72 72 72
RH 100100 61 49 49 69 82 90 90 93 67 57 63 87 97100 97100 74 63 70 87
Wind dir N N N N N S N N N N N NE SE E N N N NE E E SE N
Wind spd 0 0 0 0 0 4 0 0 0 0 0 2 3 2 0 0 0 1 3 4 5 0
Clouds CL SC FW FW SC FW FW FW SC FW SC SC SC SC B1 SC SC SC B1 B1 SC SC
PoP 12hr 5 10 60 40 50
QPF 12hr 0 0 0.14 0.04 0.27
Snow 12hr 00-00 00-00 00-00
Rain shwrs S L C C C C C C
Tstms S C C S C S
Heat index 94 94 96 92 92
Max heat 94 96 96 96 92 92
Date Mon 09/21/26 Tue 09/22/26 Wed 09/23/26 Thu 09/24/26
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 89 70 88 70 86 68 84
Temp 72 72 87 78 72 72 85 78 72 71 84 77 70 69 81 76
Dewpt 71 72 72 72 72 72 72 72 71 71 71 70 68 67 69 68
PWind dir N E N E N NE NE NE
Wind char LT LT LT LT LT GN LT GN
Avg clouds SC SC B1 B1 B1 SC B1 B1 B1 SC B1 B1 SC FW SC SC
PoP 12hr 5 40 20 60 20 30 10 20
Rain shwrs C S S C L S C S
Tstms C S C S C S
$$
GAZ099-182000-
Metter-Candler GA
32.40N 82.06W Elev. 197 ft
211 AM EDT Fri Sep 18 2026
Date Fri 09/18/26 Sat 09/19/26 Sun 09/20/26
EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20
UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00
Max/Min 93 71 93 71 90
Temp 68 67 83 91 91 82 77 74 72 71 84 91 89 79 75 74 73 71 82 88 86 77
Dewpt 68 67 68 67 67 68 68 69 69 69 70 72 72 74 74 73 72 71 74 73 73 74
RH 100100 61 45 45 63 74 84 90 93 63 54 57 85 97 97 97100 77 61 65 90
Wind dir NW NW NW NE E S S NW W W W NW E E SE SE E NE NE E E SE
Wind spd 1 2 3 3 3 2 3 1 1 1 2 3 3 2 2 1 1 2 3 4 5 3
Clouds CL CL SC FW SC SC FW FW SC SC SC FW SC SC SC SC B1 SC SC SC B1 B1
PoP 12hr 5 10 40 50 50
QPF 12hr 0 0 0.05 0.39 0.08
Snow 12hr 00-00 00-00 00-00
Rain shwrs S C C C C C
Tstms S C C S C C
Heat index 94 94 99 96 96 93
Max heat 94 96 99 100 96 97
Date Mon 09/21/26 Tue 09/22/26 Wed 09/23/26 Thu 09/24/26
EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20
UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
Min/Max 71 90 71 90 71 88 69 86
Temp 73 71 88 80 73 72 88 80 73 72 86 78 72 69 84 77
Dewpt 73 71 73 74 73 72 74 74 73 71 73 73 70 67 71 71
PWind dir E E E NE E NE NE NE
Wind char LT LT LT LT LT LT LT LT
Avg clouds SC SC SC B1 B1 SC B1 B1 B1 SC B1 SC SC FW SC SC
PoP 12hr 5 40 20 40 20 30 10 10
Rain shwrs C S S C S C
Tstms C S C S S
$$
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