Coastal Waters Forecast
Issued by NWS Wilmington, NC

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057
FZUS52 KILM 181759
CWFILM

Coastal Waters Forecast
National Weather Service Wilmington NC
159 PM EDT Mon Aug 18 2025

Surf City NC to South Santee River SC out 20 NM

AMZ200-190615-
159 PM EDT Mon Aug 18 2025

.Synopsis for coastal waters from Surf City North Carolina to
South Santee River South Carolina out to 20 nautical miles...
Light winds will shift to the northeast later today behind a
backdoor cold front. Hurricane Erin will remain offshore between
Bermuda and the U.S. East Coast during the middle of this week.
Increasing long period swells will impact the waters during the
upcoming work week, with peak swells occurring mid-week.

$$

AMZ250-190615-
Coastal waters from Surf City to Cape Fear NC out 20 nm-
159 PM EDT Mon Aug 18 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 11 PM EDT THIS EVENING
THROUGH THURSDAY EVENING...

.THIS AFTERNOON...S winds 5 kt. Seas 3 to 4 ft. Wave Detail: SE
3 ft at 14 seconds and E 2 ft at 7 seconds.
.TONIGHT...SE winds 5 kt, becoming NE after midnight. Seas 4 to
6 ft. Wave Detail: SE 5 ft at 14 seconds and E 2 ft at 6 seconds.
A slight chance of showers and tstms early in the evening, then a
slight chance of showers in the late evening and early morning.
.TUE...NE winds 15 to 20 kt. Seas 5 to 8 ft. Wave Detail: SE 8 ft
at 15 seconds and E 1 ft at 6 seconds. A slight chance of showers
in the morning, then a chance of showers and tstms in the
afternoon.
.TUE NIGHT...NE winds 15 to 20 kt with gusts up to 25 kt. Seas
7 to 10 ft. Wave Detail: SE 10 ft at 15 seconds. A chance of
showers and tstms, mainly in the evening.
.WED...NE winds 20 to 25 kt with gusts up to 30 kt. Seas 9 to
12 ft. Wave Detail: SE 12 ft at 15 seconds. A chance of showers.
A slight chance of tstms in the morning, then a chance of tstms
in the afternoon.
.WED NIGHT...N winds 20 to 25 kt with gusts up to 30 kt. Seas
11 to 15 ft. Wave Detail: SE 15 ft at 17 seconds. A chance of
showers and tstms in the evening.
.THU...N winds 20 to 25 kt, diminishing to 15 to 20 kt in the
afternoon. Gusts up to 30 kt. Seas 9 to 13 ft, subsiding to 7 to
10 ft in the afternoon. Wave Detail: E 13 ft at 16 seconds,
becoming E 10 ft at 15 seconds.
.THU NIGHT...N winds 10 to 15 kt with gusts up to 20 kt. Seas
5 to 8 ft.
.FRI...NE winds 10 to 15 kt. Seas 4 to 6 ft.
.FRI NIGHT...E winds 10 kt. Seas 3 to 4 ft.
.SAT...SE winds 10 kt. Seas 3 to 4 ft.
.SAT NIGHT...S winds 10 kt. Seas 3 to 4 ft. A chance of showers
after midnight.

Winds and seas higher in and near tstms.

$$

AMZ252-190615-
Coastal waters from Cape Fear NC to Little River Inlet SC out
20 nm-
159 PM EDT Mon Aug 18 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 11 PM EDT THIS EVENING
THROUGH THURSDAY EVENING...

.THIS AFTERNOON...S winds 5 kt. Seas 2 to 3 ft. Wave Detail: SE
3 ft at 14 seconds and E 2 ft at 7 seconds.
.TONIGHT...SE winds 5 kt, becoming NE after midnight. Seas 2 to
4 ft, building to 4 to 6 ft after midnight. Wave Detail: SE 4 ft
at 13 seconds and E 2 ft at 7 seconds, becoming SE 5 ft at
14 seconds and E 1 ft at 7 seconds. A slight chance of showers
after midnight.
.TUE...NE winds 15 to 20 kt. Seas 5 to 8 ft. Wave Detail: SE 8 ft
at 16 seconds and E 1 ft at 6 seconds. A slight chance of showers
and tstms in the morning, then a chance of showers and tstms in
the afternoon.
.TUE NIGHT...NE winds 20 to 25 kt. Seas 7 to 10 ft. Wave Detail:
SE 10 ft at 16 seconds. A slight chance of tstms. A slight chance
of showers in the evening, then a chance of showers after
midnight.
.WED...NE winds 20 to 25 kt with gusts up to 30 kt. Seas 8 to
11 ft. Wave Detail: SE 11 ft at 15 seconds. A chance of showers
and tstms.
.WED NIGHT...N winds 20 to 25 kt with gusts up to 30 kt. Seas
9 to 13 ft. Wave Detail: SE 13 ft at 16 seconds and N 3 ft at
6 seconds. A chance of showers and tstms in the evening.
.THU...N winds 20 to 25 kt, diminishing to 15 to 20 kt in the
afternoon. Gusts up to 30 kt. Seas 8 to 11 ft, subsiding to 6 to
9 ft in the afternoon. Wave Detail: SE 11 ft at 16 seconds and N
4 ft at 5 seconds, becoming E 9 ft at 15 seconds and N 4 ft at
5 seconds.
.THU NIGHT...NE winds 10 to 15 kt. Gusts up to 20 kt in the
evening. Seas 5 to 7 ft.
.FRI...E winds 10 to 15 kt. Seas 4 to 6 ft.
.FRI NIGHT...E winds 10 kt. Seas 2 to 4 ft.
.SAT...SE winds 10 kt. Seas 2 to 4 ft. A chance of showers.
.SAT NIGHT...SE winds 10 kt. Seas 2 to 3 ft. A chance of showers.


Winds and seas higher in and near tstms.

$$

AMZ254-190615-
Coastal waters from Little River Inlet to Murrells Inlet SC out
20 nm-
159 PM EDT Mon Aug 18 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TONIGHT THROUGH
THURSDAY AFTERNOON...

.THIS AFTERNOON...S winds 5 to 10 kt. Seas 2 to 3 ft. Wave
Detail: SE 3 ft at 15 seconds and E 2 ft at 7 seconds.
.TONIGHT...SE winds 5 to 10 kt, becoming NE after midnight. Seas
2 to 4 ft. Wave Detail: SE 4 ft at 14 seconds and E 1 ft at
7 seconds.
.TUE...NE winds 15 to 20 kt. Seas 4 to 6 ft. Wave Detail: SE 6 ft
at 16 seconds and E 1 ft at 6 seconds. A slight chance of showers
and tstms in the morning, then a chance of showers and tstms in
the afternoon.
.TUE NIGHT...NE winds 15 to 20 kt, increasing to 20 to 25 kt
after midnight. Seas 5 to 8 ft. Wave Detail: SE 8 ft at
16 seconds and E 2 ft at 5 seconds. A slight chance of showers
and tstms.
.WED...N winds 20 to 25 kt. Seas 6 to 9 ft. Wave Detail: SE 9 ft
at 15 seconds. A chance of showers. A slight chance of tstms in
the morning, then a chance of tstms in the afternoon.
.WED NIGHT...N winds 20 to 25 kt. Seas 8 to 11 ft. Wave Detail:
SE 11 ft at 16 seconds. A chance of showers and tstms in the
evening.
.THU...N winds 20 to 25 kt, diminishing to 15 to 20 kt in the
afternoon. Seas 7 to 10 ft, subsiding to 5 to 7 ft in the
afternoon. Wave Detail: E 10 ft at 16 seconds and N 1 ft at
4 seconds, becoming E 7 ft at 15 seconds and N 1 ft at 4 seconds.
.THU NIGHT...NE winds 10 to 15 kt. Seas 4 to 6 ft.
.FRI...E winds 10 kt. Seas 2 to 4 ft.
.FRI NIGHT...SE winds 10 to 15 kt. Seas 2 to 3 ft.
.SAT...SE winds 10 kt. Seas 2 to 3 ft. A chance of showers.
.SAT NIGHT...SE winds 10 to 15 kt. Seas 2 to 3 ft. A chance of
showers.

Winds and seas higher in and near tstms.

$$

AMZ256-190615-
Coastal waters from Murrells Inlet to South Santee River SC out
20 nm-
159 PM EDT Mon Aug 18 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TONIGHT THROUGH
THURSDAY AFTERNOON...

.THIS AFTERNOON...SE winds 5 to 10 kt. Seas 2 to 3 ft. Wave
Detail: SE 3 ft at 15 seconds and E 2 ft at 7 seconds.
.TONIGHT...SE winds 5 to 10 kt, becoming E after midnight. Seas
3 to 5 ft. Wave Detail: SE 4 ft at 18 seconds and E 2 ft at
7 seconds.
.TUE...NE winds 15 to 20 kt. Seas 5 to 7 ft. Wave Detail: SE 7 ft
at 16 seconds and E 2 ft at 7 seconds. A slight chance of showers
and tstms in the morning, then a chance of showers and tstms in
the afternoon.
.TUE NIGHT...NE winds 20 to 25 kt. Seas 6 to 9 ft. Wave Detail:
SE 9 ft at 16 seconds and E 4 ft at 6 seconds. A slight chance of
showers and tstms.
.WED...N winds 20 to 25 kt. Seas 7 to 10 ft. Wave Detail: SE
10 ft at 16 seconds and E 3 ft at 6 seconds. A chance of showers.
A slight chance of tstms in the morning, then a chance of tstms
in the afternoon.
.WED NIGHT...N winds 20 to 25 kt. Seas 8 to 11 ft. Wave Detail:
SE 11 ft at 16 seconds. A chance of showers and tstms in the
evening.
.THU...N winds 20 to 25 kt, diminishing to 15 to 20 kt in the
afternoon. Seas 7 to 10 ft, subsiding to 5 to 8 ft in the
afternoon. Wave Detail: E 10 ft at 16 seconds, becoming E 8 ft at
15 seconds.
.THU NIGHT...E winds 10 to 15 kt. Seas 5 to 7 ft.
.FRI...E winds 10 to 15 kt. Seas 3 to 5 ft. A chance of showers
and tstms in the afternoon.
.FRI NIGHT...SE winds 10 to 15 kt. Seas 3 to 4 ft. A chance of
tstms in the evening. A chance of showers.
.SAT...SE winds 10 to 15 kt. Seas 3 ft. A chance of showers. A
chance of tstms in the afternoon.
.SAT NIGHT...SE winds 10 to 15 kt. Seas 2 to 3 ft. A chance of
tstms in the evening. A chance of showers.

Winds and seas higher in and near tstms.

$$