Point Forecast Matrices
Issued by NWS Charleston, SC
Issued by NWS Charleston, SC
427
FOUS52 KCHS 170525
PFMCHS
Point Forecast Matrices
National Weather Service Charleston SC
125 AM EDT Thu Jul 17 2025
SCZ050-172000-
Charleston International Airport-Charleston SC
32.91N 80.03W Elev. 45 ft
125 AM EDT Thu Jul 17 2025
Date Thu 07/17/25 Fri 07/18/25 Sat 07/19/25
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 93 77 95 77 97
Temp 78 80 88 90 89 82 79 78 77 79 88 93 91 84 80 79 77 79 89 94 92 85
Dewpt 75 76 75 74 74 74 75 76 76 77 75 74 76 75 75 75 75 75 74 74 74 75
RH 91 88 66 60 61 77 88 94 97 94 66 54 62 74 85 88 94 88 61 53 56 72
Wind dir S S SW SW S S S SW SW SW SW SW S S SW SW SW SW W SW SW SW
Wind spd 6 8 10 12 13 11 9 6 6 6 8 8 11 10 8 6 6 6 8 9 11 10
Clouds SC B1 SC SC SC FW FW FW SC SC FW B1 B1 SC SC FW SC FW FW SC SC SC
PoP 12hr 30 5 30 5 20
QPF 12hr 0 0 0 0 0
Snow 12hr 00-00 00-00 00-00
Rain shwrs C S S S C C S S
Tstms S S S S C C S S
Heat index 98 99 98 98103103 92 98105102 94
Max heat 101 101 103 103 105 103
Date Sun 07/20/25 Mon 07/21/25 Tue 07/22/25 Wed 07/23/25
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 78 98 78 96 76 91 76 92
Temp 80 80 95 85 80 80 92 82 78 78 88 80 77 78 89 81
Dewpt 75 75 73 75 76 75 75 76 76 76 75 76 75 76 75 75
PWind dir SW W SW SW SW NE E E
Wind char GN GN LT LT LT LT LT LT
Avg clouds SC FW SC SC SC SC SC B2 B1 B1 B1 B2 B1 SC B1 B1
PoP 12hr 10 20 20 60 50 70 30 50
Rain shwrs S S S L C C C L C S C C
Tstms S S S L C C C L C S C C
$$
GAZ118-172000-
Savannah International Airport-Inland Chatham GA
32.12N 81.20W Elev. 50 ft
125 AM EDT Thu Jul 17 2025
Date Thu 07/17/25 Fri 07/18/25 Sat 07/19/25
EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20
UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00
Max/Min 93 77 95 77 98
Temp 78 79 87 91 91 84 80 79 77 79 89 94 92 85 81 79 77 79 90 96 95 88
Dewpt 75 76 77 75 74 75 76 76 75 76 77 75 76 76 75 75 74 75 75 74 73 74
RH 91 91 72 60 58 74 88 91 94 91 68 54 60 75 82 88 90 88 62 49 49 63
Wind dir S S S S S S S S S SW SW S S S S SW SW SW W W SW SW
Wind spd 5 5 8 9 10 10 5 4 3 3 4 6 9 6 5 4 3 3 5 5 8 6
Clouds FW FW SC SC SC SC FW FW FW FW FW B1 B1 SC FW CL CL CL FW SC SC SC
PoP 12hr 30 5 40 5 20
QPF 12hr 0 0 0.02 0 0
Snow 12hr 00-00 00-00 00-00
Rain shwrs S S C C S S
Tstms S S C C S S
Heat index 99102101 92 102106105 94 101107105 97
Max heat 102 103 106 106 90 107 109
Date Sun 07/20/25 Mon 07/21/25 Tue 07/22/25 Wed 07/23/25
EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20
UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
Min/Max 78 99 79 98 77 93 77 92
Temp 80 80 97 88 81 81 96 86 79 79 91 82 78 78 89 82
Dewpt 74 74 73 75 74 74 75 77 76 76 78 77 76 77 78 76
PWind dir SW W SW W SW NE NE E
Wind char LT LT LT LT LT LT LT LT
Avg clouds SC FW FW SC B1 SC SC B2 B1 SC B1 B2 B1 SC B1 B2
PoP 12hr 5 20 20 60 40 70 30 60
Rain shwrs S S L C S C L C C L
Tstms S S L C S C L C C L
$$
SCZ050-172000-
Charleston Waterfront-Charleston SC
32.78N 79.94W Elev. 10 ft
125 AM EDT Thu Jul 17 2025
Date Thu 07/17/25 Fri 07/18/25 Sat 07/19/25
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 91 79 94 78 95
Temp 80 82 88 90 89 83 81 80 79 81 89 92 91 84 82 80 78 80 90 93 92 86
Dewpt 77 78 77 76 75 76 77 77 77 78 78 78 78 77 77 76 76 77 77 77 78 77
RH 91 88 70 64 64 80 88 91 94 91 70 64 66 80 85 88 94 91 66 60 64 75
Wind dir S S S S S S S SW SW SW SW S S SW SW SW SW SW W SW SW SW
Wind spd 8 8 10 12 13 10 8 6 6 6 8 11 12 10 8 6 5 5 8 10 12 10
Clouds FW B1 SC FW FW FW FW FW SC SC SC SC SC SC SC FW FW FW FW SC SC SC
PoP 12hr 30 5 30 5 20
QPF 12hr 0 0 0 0 0
Snow 12hr 00-00 00-00 00-00
Rain shwrs C S S S C C S S
Tstms C S S S C C S S
Heat index 90100101 99 91 103107106 94 90 103107107 97
Max heat 91 102 102 107 107 91 107 107
Date Sun 07/20/25 Mon 07/21/25 Tue 07/22/25 Wed 07/23/25
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 80 96 80 95 77 90 77 89
Temp 82 82 95 86 82 82 93 84 79 79 88 82 79 79 88 82
Dewpt 77 76 77 77 77 76 78 78 78 78 78 77 77 77 77 76
PWind dir SW SW SW SW SW E E E
Wind char GN GN LT LT LT LT LT GN
Avg clouds SC FW SC SC SC SC SC B1 B2 B1 B2 B2 B1 B1 B1 B1
PoP 12hr 10 20 20 50 60 70 40 50
Rain shwrs S S S S C L C C L C C C C
Tstms S S S S C C C C L C S C C
$$
SCZ048-172000-
Beaufort Marine Corps Air Station-Beaufort SC
32.48N 80.72W Elev. 37 ft
125 AM EDT Thu Jul 17 2025
Date Thu 07/17/25 Fri 07/18/25 Sat 07/19/25
EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20
UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00
Max/Min 91 77 94 77 96
Temp 78 79 86 89 89 81 80 79 77 79 88 92 90 84 81 79 77 79 89 94 92 86
Dewpt 75 77 77 76 75 76 77 77 76 77 77 77 77 76 77 75 75 75 76 76 75 76
RH 91 94 75 66 64 85 91 94 97 94 70 62 66 77 88 88 94 88 66 56 58 72
Wind dir S S S S S S S S SW SW SW S S S SW SW SW SW W W SW S
Wind spd 5 5 8 10 10 9 5 5 4 4 5 6 9 6 5 4 4 4 5 6 8 6
Clouds SC SC SC SC FW SC FW FW FW SC FW B1 B1 FW FW CL FW FW FW FW SC SC
PoP 12hr 20 5 30 5 10
QPF 12hr 0.05 0 0 0 0
Snow 12hr 00-00 00-00 00-00
Rain shwrs S S S S C C
Tstms S S S S C C
Heat index 97100 99 100106103 93 100107103 96
Max heat 100 102 106 106 91 107 106
Date Sun 07/20/25 Mon 07/21/25 Tue 07/22/25 Wed 07/23/25
EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20
UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
Min/Max 79 97 79 96 77 91 77 89
Temp 81 81 95 86 81 81 94 84 79 79 89 81 78 78 88 81
Dewpt 75 75 75 76 75 75 77 77 77 77 78 77 77 77 78 76
PWind dir SW W SW W SW E E E
Wind char LT LT LT LT LT LT LT LT
Avg clouds SC FW SC SC SC FW SC B1 B1 B1 B1 B2 B1 SC B1 B1
PoP 12hr 5 20 20 50 40 70 30 50
Rain shwrs S S C C S C L C C C
Tstms S S C C S C L C C C
$$
SCZ043-172000-
Walterboro-Inland Colleton SC
32.91N 80.67W Elev. 98 ft
125 AM EDT Thu Jul 17 2025
Date Thu 07/17/25 Fri 07/18/25 Sat 07/19/25
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 91 74 94 75 95
Temp 75 78 87 90 89 81 78 76 74 76 88 92 91 83 78 76 75 77 88 93 92 84
Dewpt 74 76 75 73 73 74 76 75 74 76 76 74 74 75 76 75 74 75 75 74 73 74
RH 97 94 68 58 59 79 94 97100100 68 56 58 77 94 97 97 94 66 54 54 72
Wind dir S S S SW S S S S SW SW SW SW S S S SW SW SW W W SW SW
Wind spd 3 4 6 8 10 8 5 3 3 4 5 5 6 5 4 3 3 4 5 6 8 5
Clouds FW SC SC B1 SC FW FW FW SC SC FW B1 B1 SC SC FW SC FW FW SC SC SC
PoP 12hr 30 5 30 5 20
QPF 12hr 0 0 0 0 0
Snow 12hr 00-00 00-00 00-00
Rain shwrs S C S C C S S
Tstms C S C C S S
Heat index 96 98 97 99102101 90 98103101 91
Max heat 99 99 102 101 103 103
Date Sun 07/20/25 Mon 07/21/25 Tue 07/22/25 Wed 07/23/25
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 76 95 76 93 74 89 74 89
Temp 78 78 94 84 78 78 93 82 76 76 87 79 75 76 88 79
Dewpt 74 74 73 75 74 75 75 76 76 76 76 76 75 76 75 76
PWind dir SW W SW W SW NE E E
Wind char LT LT LT LT LT LT LT LT
Avg clouds SC FW FW SC SC SC SC B2 B1 B1 B1 B2 B1 B1 B1 B1
PoP 12hr 5 20 20 60 40 70 30 50
Rain shwrs S S S L C S C L C C C
Tstms S S S L C S C L C C C
$$
GAZ099-172000-
Metter-Candler GA
32.40N 82.06W Elev. 197 ft
125 AM EDT Thu Jul 17 2025
Date Thu 07/17/25 Fri 07/18/25 Sat 07/19/25
EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20
UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00
Max/Min 94 74 97 75 97
Temp 74 76 87 93 91 86 80 77 76 77 88 95 93 86 80 77 75 77 88 95 94 88
Dewpt 74 74 75 73 73 74 74 74 74 75 75 73 73 74 74 74 74 74 75 72 71 73
RH 100 94 68 52 56 68 82 90 94 94 66 49 52 68 82 90 97 90 66 48 47 61
Wind dir S S S S S S S S SW SW W SW S S SW SW SW W W W SW SW
Wind spd 2 2 4 5 5 4 3 2 2 2 3 4 5 2 2 2 2 2 4 6 5 3
Clouds FW FW FW SC B1 SC SC FW FW FW FW B1 B1 SC SC FW FW FW CL FW FW FW
PoP 12hr 30 10 30 5 20
QPF 12hr 0 0 0 0 0
Snow 12hr 00-00 00-00 00-00
Rain shwrs C C C C S S
Tstms C C C C S S
Heat index 96102100 94 98105102 94 98104101 96
Max heat 102 102 90 105 105 91 104 104
Date Sun 07/20/25 Mon 07/21/25 Tue 07/22/25 Wed 07/23/25
EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20
UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00
Min/Max 76 98 76 97 76 95 74 92
Temp 79 78 96 88 79 78 95 87 78 78 92 83 76 76 90 84
Dewpt 72 73 72 73 73 74 73 74 75 75 76 76 76 75 76 76
PWind dir SW W W W W NE NE NE
Wind char LT LT LT LT LT LT LT LT
Avg clouds FW FW FW SC SC SC FW B1 B1 SC B1 B2 B1 B1 B1 B1
PoP 12hr 5 20 20 50 40 70 30 50
Rain shwrs S S C C S C L C S C
Tstms S S C C S C L C S C
$$
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