704
FZUS52 KCHS 211626
CWFCHS
COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE CHARLESTON SC
1225 PM EDT TUE JUL 21 2026
SOUTH SANTEE RIVER SC TO ALTAMAHA SOUND GA OUT 60 NM, INCLUDING
CHARLESTON HARBOR AND GRAYS REEF NATIONAL MARINE SANCTUARY
AMZ300-220600-
1225 PM EDT TUE JUL 21 2026
.SYNOPSIS FOR THE COASTAL WATERS OF SOUTH COASTAL SOUTH CAROLINA
AND NORTH COASTAL GEORGIA...
HIGH PRESSURE WILL REMAIN CENTERED OVER THE WESTERN ATLANTIC
WHILE A BROAD AREA OF LOW PRESSURE LINGERS ACROSS THE CENTRAL
CAROLINAS THROUGH EARLY THIS WEEK. A COLD FRONT MAY REACH THE
REGION BY THURSDAY, POSSIBLY BECOMING STATIONARY ALONG THE COAST
UNTIL THIS WEEKEND.
AMZ340-220600-
CHARLESTON HARBOR-
1226 PM EDT TUE JUL 21 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH WEDNESDAY MORNING
THIS AFTERNOON
S WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES
1 TO 2 FT.
TONIGHT
S WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 1 TO
2 FT. A SLIGHT CHANCE OF SHOWERS AND TSTMS AFTER MIDNIGHT.
WED
SW WINDS 15 KT WITH GUSTS TO 20 KT.
WED NIGHT
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT.
THU
SW WINDS 10 TO 15 KT. A CHANCE OF SHOWERS AND TSTMS IN THE
AFTERNOON.
THU NIGHT
S WINDS 10 KT. A CHANCE OF TSTMS. SHOWERS LIKELY.
FRI
S WINDS 5 TO 10 KT. A CHANCE OF SHOWERS AND TSTMS.
FRI NIGHT
S WINDS 5 TO 10 KT. A CHANCE OF SHOWERS AND TSTMS.
SAT
SW WINDS 5 TO 10 KT. SHOWERS AND TSTMS LIKELY.
SAT NIGHT
SW WINDS 5 TO 10 KT. SHOWERS LIKELY WITH A CHANCE OF
TSTMS.
WINDS AND WAVES HIGHER IN AND NEAR TSTMS.
UNLESS OTHERWISE NOTED, WAVES 1 FOOT OR LESS.
CHARLESTON HARBOR WATER TEMPERATURE 87 DEGREES.
AMZ360-220600-
COASTAL WATERS FROM SOUTH SANTEE RIVER TO EDISTO BEACH SC OUT
20 NM-
1226 PM EDT TUE JUL 21 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE WEDNESDAY NIGHT
THIS AFTERNOON
S WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. SEAS
4 TO 5 FT. WAVE DETAIL: S 4 FT AT 6 SECONDS.
TONIGHT
S WINDS 20 TO 25 KT. SEAS 4 TO 6 FT, BUILDING TO 5 TO
6 FT AFTER MIDNIGHT. WAVE DETAIL: S 6 FT AT 6 SECONDS.
WED
SW WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. SEAS 5 TO 6 FT.
WAVE DETAIL: S 5 FT AT 7 SECONDS.
WED NIGHT
S WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. SEAS 4 TO
5 FT, BUILDING TO 5 TO 6 FT AFTER MIDNIGHT. WAVE DETAIL: S 5 FT
AT 6 SECONDS.
THU
SW WINDS 15 TO 20 KT, DIMINISHING TO 10 TO 15 KT IN THE
AFTERNOON. SEAS 4 TO 5 FT, SUBSIDING TO 3 TO 4 FT IN THE
AFTERNOON. WAVE DETAIL: S 5 FT AT 7 SECONDS, BECOMING SW 3 FT AT
5 SECONDS AND SE 3 FT AT 8 SECONDS. A SLIGHT CHANCE OF SHOWERS
AND TSTMS IN THE AFTERNOON.
THU NIGHT
S WINDS 10 TO 15 KT. SEAS 3 FT. WAVE DETAIL: SW 3 FT
AT 5 SECONDS AND SE 3 FT AT 8 SECONDS. A CHANCE OF TSTMS. A
CHANCE OF SHOWERS.
FRI
S WINDS 10 TO 15 KT. SEAS 3 FT. A CHANCE OF SHOWERS AND
TSTMS.
FRI NIGHT
S WINDS 10 KT. SEAS 3 FT. A CHANCE OF SHOWERS AND
TSTMS.
SAT
SW WINDS 10 TO 15 KT. SEAS 3 FT. A CHANCE OF SHOWERS AND
TSTMS.
SAT NIGHT
SW WINDS 10 TO 15 KT. SEAS 3 TO 4 FT. SHOWERS LIKELY
WITH A CHANCE OF TSTMS.
WINDS AND SEAS HIGHER IN AND NEAR TSTMS.
AMZ362-220600-
COASTAL WATERS FROM EDISTO BEACH SC TO SAVANNAH GA OUT 20 NM-
1226 PM EDT TUE JUL 21 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE WEDNESDAY NIGHT
THIS AFTERNOON
S WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. SEAS
4 TO 5 FT. WAVE DETAIL: S 4 FT AT 6 SECONDS.
TONIGHT
S WINDS 20 TO 25 KT. SEAS 5 TO 6 FT. WAVE DETAIL: SE
6 FT AT 7 SECONDS.
WED
S WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. SEAS 4 TO 5 FT.
WAVE DETAIL: S 4 FT AT 7 SECONDS.
WED NIGHT
S WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. SEAS 4 TO
5 FT. WAVE DETAIL: SE 5 FT AT 6 SECONDS.
THU
SW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. SEAS 3 TO 4 FT.
WAVE DETAIL: S 3 FT AT 6 SECONDS.
THU NIGHT
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. SEAS 3 FT.
WAVE DETAIL: S 3 FT AT 5 SECONDS AND SE 3 FT AT 8 SECONDS. A
CHANCE OF SHOWERS AND TSTMS.
FRI
S WINDS 10 KT. SEAS 2 TO 3 FT. A CHANCE OF SHOWERS AND
TSTMS.
FRI NIGHT
S WINDS 10 KT. SEAS 3 FT. A CHANCE OF SHOWERS AND
TSTMS.
SAT
SW WINDS 10 KT. SEAS 3 FT. A CHANCE OF SHOWERS AND TSTMS.
SAT NIGHT
SW WINDS 10 TO 15 KT. SEAS 3 FT. A CHANCE OF SHOWERS
AND TSTMS.
WINDS AND SEAS HIGHER IN AND NEAR TSTMS.
AMZ364-220600-
COASTAL WATERS FROM SAVANNAH GA TO ALTAMAHA SOUND GA OUT 20 NM,
INCLUDING GRAYS REEF NATIONAL MARINE SANCTUARY-
1226 PM EDT TUE JUL 21 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH WEDNESDAY EVENING
THIS AFTERNOON
S WINDS 20 TO 25 KT. SEAS 4 TO 5 FT. WAVE
DETAIL: SE 5 FT AT 6 SECONDS.
TONIGHT
S WINDS 20 TO 25 KT. SEAS 4 TO 5 FT. WAVE DETAIL: S
5 FT AT 6 SECONDS.
WED
S WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. SEAS 4 TO 5 FT,
SUBSIDING TO 3 TO 4 FT IN THE AFTERNOON. WAVE DETAIL: S 4 FT AT
6 SECONDS, BECOMING SE 4 FT AT 6 SECONDS.
WED NIGHT
S WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. SEAS 4 TO
5 FT. WAVE DETAIL: S 5 FT AT 5 SECONDS.
THU
SW WINDS 5 TO 10 KT, BECOMING S 10 TO 15 KT WITH GUSTS TO
20 KT IN THE AFTERNOON. SEAS 3 TO 4 FT, SUBSIDING TO 2 TO 3 FT IN
THE AFTERNOON. WAVE DETAIL: SE 3 FT AT 7 SECONDS.
THU NIGHT
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. SEAS 3 FT.
WAVE DETAIL: S 3 FT AT 4 SECONDS AND SE 3 FT AT 8 SECONDS. A
CHANCE OF SHOWERS AND TSTMS.
FRI
S WINDS 10 TO 15 KT. SEAS 2 TO 3 FT. A SLIGHT CHANCE OF
SHOWERS AND TSTMS.
FRI NIGHT
S WINDS 10 TO 15 KT. SEAS 2 TO 3 FT. A CHANCE OF
SHOWERS AND TSTMS.
SAT
SW WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. A CHANCE OF SHOWERS
AND TSTMS.
SAT NIGHT
SW WINDS 10 KT. SEAS 3 FT. A CHANCE OF SHOWERS AND
TSTMS.
WINDS AND SEAS HIGHER IN AND NEAR TSTMS.
AMZ380-220600-
WATERS FROM SOUTH SANTEE RIVER SC TO EDISTO BEACH SC EXTENDING
FROM 20 TO 60 NM-
1226 PM EDT TUE JUL 21 2026
THIS AFTERNOON
SW WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. SEAS
4 TO 5 FT. WAVE DETAIL: S 4 FT AT 6 SECONDS. A SLIGHT CHANCE OF
SHOWERS AND TSTMS EARLY.
TONIGHT
S WINDS 20 TO 25 KT. SEAS 5 TO 6 FT. WAVE DETAIL: S
6 FT AT 7 SECONDS.
WED
SW WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. SEAS 5 TO 6 FT,
SUBSIDING TO 4 TO 5 FT IN THE AFTERNOON. WAVE DETAIL: S 5 FT AT
7 SECONDS, BECOMING S 4 FT AT 7 SECONDS.
WED NIGHT
S WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. SEAS 5 FT.
WAVE DETAIL: S 5 FT AT 5 SECONDS AND SE 3 FT AT 8 SECONDS.
THU
SW WINDS 15 TO 20 KT, DIMINISHING TO 10 TO 15 KT IN THE
AFTERNOON. SEAS 4 TO 5 FT, SUBSIDING TO 3 TO 4 FT IN THE
AFTERNOON. WAVE DETAIL: S 5 FT AT 7 SECONDS, BECOMING SW 3 FT AT
5 SECONDS AND SE 3 FT AT 8 SECONDS. A SLIGHT CHANCE OF SHOWERS
AND TSTMS IN THE AFTERNOON.
THU NIGHT
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. SEAS 3 FT.
WAVE DETAIL: S 3 FT AT 4 SECONDS AND SE 3 FT AT 8 SECONDS. A
CHANCE OF SHOWERS AND TSTMS.
FRI
S WINDS 5 TO 10 KT. SEAS 3 FT. A CHANCE OF SHOWERS AND
TSTMS.
FRI NIGHT
S WINDS 10 KT. SEAS 3 TO 4 FT. A CHANCE OF SHOWERS
AND TSTMS.
SAT
SW WINDS 10 KT. SEAS 3 TO 4 FT. A CHANCE OF SHOWERS AND
TSTMS.
SAT NIGHT
SW WINDS 10 TO 15 KT. SEAS 3 TO 4 FT. SHOWERS LIKELY
WITH A CHANCE OF TSTMS.
WINDS AND SEAS HIGHER IN AND NEAR TSTMS.
AMZ382-220600-
WATERS FROM EDISTO BEACH SC TO SAVANNAH GA EXTENDING FROM 20 TO
60 NM-
1226 PM EDT TUE JUL 21 2026
THIS AFTERNOON
S WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. SEAS
4 TO 5 FT. WAVE DETAIL: S 4 FT AT 6 SECONDS.
TONIGHT
S WINDS 20 TO 25 KT. SEAS 5 TO 6 FT. WAVE DETAIL: S
6 FT AT 7 SECONDS.
WED
S WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. SEAS 4 TO 6 FT,
SUBSIDING TO 4 TO 5 FT IN THE AFTERNOON. WAVE DETAIL: S 4 FT AT
7 SECONDS, BECOMING S 3 FT AT 6 SECONDS.
WED NIGHT
S WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. SEAS 4 TO
5 FT. WAVE DETAIL: S 5 FT AT 5 SECONDS AND SE 3 FT AT 8 SECONDS.
THU
SW WINDS 10 TO 15 KT. SEAS 4 TO 5 FT, SUBSIDING TO 3 TO
4 FT IN THE AFTERNOON. WAVE DETAIL: SW 3 FT AT 5 SECONDS AND SE
3 FT AT 8 SECONDS, BECOMING SE 3 FT AT 8 SECONDS AND SW 2 FT AT
5 SECONDS.
THU NIGHT
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. SEAS 3 FT.
WAVE DETAIL: SW 3 FT AT 4 SECONDS AND SE 3 FT AT 8 SECONDS. A
CHANCE OF SHOWERS AND TSTMS.
FRI
S WINDS 10 TO 15 KT. SEAS 3 FT. A CHANCE OF SHOWERS AND
TSTMS.
FRI NIGHT
S WINDS 10 KT. SEAS 3 TO 4 FT. A CHANCE OF SHOWERS
AND TSTMS.
SAT
SW WINDS 10 KT. SEAS 3 TO 4 FT. A CHANCE OF SHOWERS AND
TSTMS.
SAT NIGHT
SW WINDS 10 TO 15 KT. SEAS 3 TO 4 FT. A CHANCE OF
SHOWERS AND TSTMS.
WINDS AND SEAS HIGHER IN AND NEAR TSTMS.
AMZ384-220600-
WATERS FROM SAVANNAH GA TO ALTAMAHA SOUND GA EXTENDING FROM 20 TO
60 NM-
1226 PM EDT TUE JUL 21 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH WEDNESDAY EVENING
THIS AFTERNOON
S WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. SEAS
4 TO 5 FT. WAVE DETAIL: S 4 FT AT 6 SECONDS.
TONIGHT
S WINDS 20 TO 25 KT. SEAS 5 FT. WAVE DETAIL: SE 5 FT
AT 6 SECONDS.
WED
S WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. SEAS 4 TO 5 FT.
WAVE DETAIL: S 4 FT AT 7 SECONDS.
WED NIGHT
S WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. SEAS 4 TO
5 FT. WAVE DETAIL: S 5 FT AT 5 SECONDS AND SE 3 FT AT 8 SECONDS.
THU
S WINDS 10 TO 15 KT. SEAS 3 TO 4 FT. WAVE DETAIL: S 4 FT
AT 5 SECONDS AND SE 3 FT AT 8 SECONDS.
THU NIGHT
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. SEAS 3 FT.
WAVE DETAIL: S 3 FT AT 4 SECONDS AND SE 3 FT AT 8 SECONDS. A
CHANCE OF SHOWERS AND TSTMS.
FRI
S WINDS 5 TO 10 KT. SEAS 2 TO 3 FT. A SLIGHT CHANCE OF
SHOWERS AND TSTMS.
FRI NIGHT
S WINDS 10 KT. SEAS 3 FT. A SLIGHT CHANCE OF SHOWERS
AND TSTMS.
SAT
SW WINDS 10 KT. SEAS 3 FT. A CHANCE OF SHOWERS AND TSTMS.
SAT NIGHT
SW WINDS 10 KT. SEAS 3 TO 4 FT. A CHANCE OF SHOWERS
AND TSTMS.
WINDS AND SEAS HIGHER IN AND NEAR TSTMS.
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