948
FZUS52 KILM 190554
CWFILM

Coastal Waters Forecast
National Weather Service Wilmington NC
154 AM EDT Tue Aug 19 2025

Surf City NC to South Santee River SC out 20 NM

AMZ200-191815-
154 AM EDT Tue Aug 19 2025

.Synopsis for coastal waters from Surf City North Carolina to
South Santee River South Carolina out to 20 nautical miles...
Northeasterly flow increases today as high pressure wedges into
the Carolinas. Winds and seas will increase during the middle of
this week as Hurricane Erin tracks northward between Bermuda and
the U.S. East Coast. Increasing long period swells will impact the
waters during the upcoming work week, with peak swells occurring
mid-week.

$$

AMZ250-191815-
Coastal waters from Surf City to Cape Fear NC out 20 nm-
154 AM EDT Tue Aug 19 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH THURSDAY EVENING...

.REST OF TONIGHT...NE winds 5 kt, increasing to 5 to 10 kt late.
Seas 4 to 6 ft. Wave Detail: SE 5 ft at 14 seconds and E 1 ft at
6 seconds.
.TUE...NE winds 10 to 15 kt. Gusts up to 20 kt in the afternoon.
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 afternoon.
.TUE NIGHT...NE winds 15 to 20 kt with gusts up to 25 kt. Seas
6 to 9 ft. Wave Detail: SE 9 ft at 15 seconds and E 2 ft at
5 seconds.
.WED...NE winds 20 to 25 kt with gusts up to 30 kt. Seas 7 to
10 ft, building to 9 to 13 ft in the afternoon. Wave Detail: SE
10 ft at 15 seconds, becoming SE 12 ft at 16 seconds. A chance of
showers and tstms.
.WED NIGHT...N winds 25 to 30 kt with gusts up to 35 kt. Seas
12 to 16 ft. Wave Detail: SE 16 ft at 17 seconds. A chance of
showers. A chance of tstms, mainly in the evening.
.THU...N winds 25 to 30 kt, diminishing to 20 to 25 kt in the
afternoon. Seas 9 to 13 ft, subsiding to 7 to 10 ft in the
afternoon. Wave Detail: SE 13 ft at 16 seconds, becoming E 10 ft
at 14 seconds and NW 1 ft at 5 seconds. A chance of showers in
the morning.
.THU NIGHT...N winds 15 to 20 kt, diminishing to 10 to 15 kt
after midnight. Gusts up to 25 kt. Seas 5 to 8 ft, subsiding to
4 to 6 ft after midnight. Wave Detail: E 8 ft at 13 seconds and
NW 1 ft at 5 seconds, becoming E 6 ft at 13 seconds.
.FRI...NE winds 10 to 15 kt. Seas 4 to 6 ft.
.FRI NIGHT...E winds 10 kt. Seas 4 to 5 ft.
.SAT...E winds 10 kt. Seas 3 to 4 ft. A chance of showers in the
afternoon.
.SAT NIGHT...SE winds 5 to 10 kt. Seas 3 to 4 ft. A chance of
showers.

Winds and seas higher in and near tstms.

$$

AMZ252-191815-
Coastal waters from Cape Fear NC to Little River Inlet SC out
20 nm-
154 AM EDT Tue Aug 19 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH THURSDAY EVENING...

.REST OF TONIGHT...NE winds 5 to 10 kt. Seas 3 to 5 ft. Wave
Detail: SE 5 ft at 14 seconds and E 1 ft at 6 seconds.
.TUE...NE winds 10 to 15 kt. Gusts up to 20 kt in the afternoon.
Seas 5 to 7 ft. Wave Detail: SE 7 ft at 15 seconds and NE 1 ft at
6 seconds.
.TUE NIGHT...NE winds 15 to 20 kt with gusts up to 25 kt. Seas
6 to 9 ft. Wave Detail: SE 9 ft at 15 seconds and E 1 ft at
5 seconds.
.WED...NE winds 20 to 25 kt with gusts up to 30 kt. Seas 8 to
11 ft. Wave Detail: SE 11 ft at 16 seconds. A chance of showers
and tstms.
.WED NIGHT...N winds 25 to 30 kt with gusts up to 35 kt. Seas
9 to 13 ft. Wave Detail: SE 13 ft at 17 seconds. A chance of
showers and tstms, mainly in the evening.
.THU...N winds 20 to 25 kt with gusts up to 35 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 NW 4 ft at 5 seconds.
.THU NIGHT...N winds 10 to 15 kt. Gusts up to 20 kt in the
evening. Seas 4 to 6 ft. Wave Detail: E 6 ft at 14 seconds and NW
3 ft at 5 seconds.
.FRI...NE winds 10 to 15 kt. Seas 3 to 5 ft.
.FRI NIGHT...E winds 10 kt. Seas 2 to 4 ft.
.SAT...E winds 10 kt. Seas 2 to 4 ft. A chance of showers.
.SAT NIGHT...SE winds 10 kt. Seas 2 to 4 ft. A chance of showers.


Winds and seas higher in and near tstms.

$$

AMZ254-191815-
Coastal waters from Little River Inlet to Murrells Inlet SC out
20 nm-
154 AM EDT Tue Aug 19 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH THURSDAY AFTERNOON...

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

$$

AMZ256-191815-
Coastal waters from Murrells Inlet to South Santee River SC out
20 nm-
154 AM EDT Tue Aug 19 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH THURSDAY AFTERNOON...

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

Winds and seas higher in and near tstms.

$$