FZUS52 KILM 182300 CWFILM Coastal Waters Forecast National Weather Service Wilmington NC 700 PM EDT Sat Apr 18 2026 Surf City NC to South Santee River SC out 20 NM AMZ200-191115- 700 PM EDT Sat Apr 18 2026 .Synopsis for coastal waters from Surf City North Carolina to South Santee River South Carolina out to 20 nautical miles... Bermuda high pressure will maintain light to moderate south to southwest winds through tonight. A quick moving cold front will push off the coast Sunday afternoon followed by strong north to northeast winds Sunday afternoon into Monday. A secondary cold front Mon night will be followed by high pressure building in thru Tue. The high will slide overhead then offshore from the southeast U.S. coast by mid-week. $$ AMZ250-191115- Coastal waters from Surf City to Cape Fear NC out 20 nm- 700 PM EDT Sat Apr 18 2026 .TONIGHT...SW winds 10 to 15 kt. Gusts up to 20 kt late this evening and overnight. Seas 2 to 4 ft. Wave Detail: S 3 ft at 5 seconds and SE 2 ft at 8 seconds. .SUN...SW winds 15 kt, becoming NW in the afternoon. Gusts up to 25 kt. Seas 3 to 4 ft. Wave Detail: SE 4 ft at 7 seconds. A chance of showers with a slight chance of tstms in the afternoon. .SUN NIGHT...N winds 15 to 20 kt, diminishing to 10 to 15 kt after midnight. Gusts up to 25 kt. Seas 3 to 4 ft. Wave Detail: W 3 ft at 5 seconds and E 3 ft at 8 seconds. A slight chance of showers in the evening. .MON...N winds 10 to 15 kt, becoming W in the afternoon. Seas 2 to 4 ft. Wave Detail: E 3 ft at 10 seconds and SW 1 ft at 5 seconds. .MON NIGHT...W winds 10 to 15 kt, becoming N with gusts up to 20 kt after midnight. Seas 2 to 3 ft. Wave Detail: E 3 ft at 8 seconds and NW 2 ft at 3 seconds. .TUE...NE winds 10 to 15 kt. Gusts up to 20 kt in the morning. Seas 2 to 4 ft. Wave Detail: NE 3 ft at 5 seconds and NW 1 ft at 3 seconds. .TUE NIGHT...SE winds 5 to 10 kt, becoming S after midnight. Seas 2 to 3 ft. .WED...SW winds 5 to 10 kt, increasing to 15 to 20 kt in the afternoon. Seas 2 to 3 ft. .WED NIGHT...SW winds 15 to 20 kt. Seas 2 to 4 ft. .THU...W winds 10 to 15 kt, becoming SW in the afternoon. Seas 2 to 3 ft. .THU NIGHT...SW winds 10 to 15 kt. Seas 2 ft. Winds and seas higher in and near tstms. $$ AMZ252-191115- Coastal waters from Cape Fear NC to Little River Inlet SC out 20 NM- 700 PM EDT Sat Apr 18 2026 .TONIGHT...SW winds 10 to 15 kt. Gusts up to 20 kt after midnight. Seas 2 to 4 ft. Wave Detail: S 3 ft at 5 seconds and SE 2 ft at 8 seconds. .SUN...SW winds 15 kt, becoming NW in the afternoon. Gusts up to 25 kt. Seas 3 to 4 ft. Wave Detail: SE 4 ft at 7 seconds and E 1 ft at 12 seconds. A chance of showers in the afternoon. .SUN NIGHT...N winds 15 to 20 kt, diminishing to 10 to 15 kt after midnight. Gusts up to 25 kt. Seas 2 to 4 ft. Wave Detail: W 3 ft at 5 seconds and NE 3 ft at 5 seconds. A slight chance of showers in the evening. .MON...N winds 10 to 15 kt, becoming W in the afternoon. Seas 2 to 4 ft. Wave Detail: NE 3 ft at 6 seconds and W 1 ft at 4 seconds. .MON NIGHT...SW winds 5 to 10 kt, becoming N 10 to 15 kt with gusts up to 20 kt after midnight. Seas 2 to 3 ft. Wave Detail: E 3 ft at 8 seconds and W 1 ft at 3 seconds. .TUE...NE winds 10 to 15 kt. Gusts up to 20 kt in the morning. Seas 2 to 4 ft. Wave Detail: NE 3 ft at 5 seconds and NW 1 ft at 3 seconds. .TUE NIGHT...SE winds 5 to 10 kt, becoming S after midnight. Seas 2 to 3 ft. .WED...SW winds 5 to 10 kt, increasing to 10 to 15 kt in the afternoon. Seas 2 to 3 ft. .WED NIGHT...SW winds 15 to 20 kt. Seas 2 to 3 ft. .THU...W winds 10 to 15 kt, becoming SW 5 to 10 kt in the afternoon. Seas 2 to 3 ft. .THU NIGHT...SW winds 10 to 15 kt. Seas 2 to 3 ft. $$ AMZ254-191115- Coastal waters from Little River Inlet to Murrells Inlet SC out 20 NM- 700 PM EDT Sat Apr 18 2026 .TONIGHT...SW winds 10 to 15 kt. Gusts up to 20 kt early this evening, then 20 kt late. Seas 3 to 4 ft. Wave Detail: S 3 ft at 4 seconds and SE 2 ft at 8 seconds. .SUN...SW winds 15 kt, becoming NW in the afternoon. Gusts up to 20 kt. Seas 3 to 4 ft. Wave Detail: S 3 ft at 5 seconds and SE 2 ft at 8 seconds. A chance of showers in the afternoon. .SUN NIGHT...N winds 15 to 20 kt, diminishing to 10 to 15 kt after midnight. Seas 2 to 4 ft. Wave Detail: NW 3 ft at 5 seconds and E 3 ft at 7 seconds. .MON...N winds 10 to 15 kt, becoming W 5 to 10 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: NE 3 ft at 5 seconds and NW 1 ft at 5 seconds. .MON NIGHT...SW winds 10 to 15 kt, becoming N with gusts up to 20 kt after midnight. Seas 2 to 3 ft. Wave Detail: NE 3 ft at 8 seconds and W 2 ft at 3 seconds. .TUE...NE winds 10 to 15 kt with gusts up to 20 kt, becoming E 5 to 10 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: N 3 ft at 4 seconds. .TUE NIGHT...SE winds 5 to 10 kt. Seas 2 ft. .WED...SW winds 5 to 10 kt, increasing to 10 to 15 kt in the afternoon. Seas 2 to 3 ft. .WED NIGHT...SW winds 15 to 20 kt. Seas 2 to 3 ft. .THU...W winds 10 to 15 kt, becoming SW in the afternoon. Seas 2 to 3 ft. .THU NIGHT...SW winds 10 to 15 kt. Seas 2 to 3 ft. $$ AMZ256-191115- Coastal waters from Murrells Inlet to South Santee River SC out 20 NM- 700 PM EDT Sat Apr 18 2026 .TONIGHT...SW winds 15 kt. Gusts up to 20 kt early this evening, then 20 kt after midnight. Seas 3 to 4 ft. Wave Detail: S 3 ft at 4 seconds and E 2 ft at 8 seconds. .SUN...SW winds 15 kt, becoming NW in the afternoon. Gusts up to 25 kt. Seas 3 to 4 ft. Wave Detail: S 3 ft at 5 seconds and E 2 ft at 8 seconds. A chance of showers in the afternoon. .SUN NIGHT...N winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 4 ft. Wave Detail: NW 3 ft at 5 seconds and E 3 ft at 8 seconds. .MON...N winds 10 to 15 kt with gusts up to 20 kt, becoming E in the afternoon. Seas 2 to 4 ft. Wave Detail: N 3 ft at 5 seconds. .MON NIGHT...SW winds 10 to 15 kt, becoming N with gusts up to 20 kt after midnight. Seas 2 to 3 ft. Wave Detail: E 3 ft at 9 seconds and NW 2 ft at 3 seconds. .TUE...NE winds 15 to 20 kt, diminishing to 10 to 15 kt in the afternoon. Seas 2 to 4 ft. Wave Detail: N 4 ft at 5 seconds. .TUE NIGHT...SE winds 5 to 10 kt. Seas 2 to 3 ft. .WED...S winds 5 to 10 kt, becoming SW 15 to 20 kt in the afternoon. Seas 2 to 3 ft. .WED NIGHT...SW winds 15 to 20 kt. Seas 2 to 3 ft. .THU...W winds 10 to 15 kt, becoming SW in the afternoon. Seas 2 to 3 ft. .THU NIGHT...SW winds 10 to 15 kt. Seas 2 to 3 ft. $$ AMZ280-191115- Waters from Surf City NC to Little River Inlet SC from 20 to 60 NM- 700 PM EDT Sat Apr 18 2026 .TONIGHT...S winds 10 to 15 kt with gusts up to 25 kt, becoming SW 15 to 20 kt with gusts up to 30 kt after midnight. Seas 3 to 5 ft. Wave Detail: S 4 ft at 5 seconds and SE 2 ft at 8 seconds. .SUN...SW winds 20 kt, becoming W in the afternoon. Gusts up to 30 kt. Seas 4 to 5 ft. Wave Detail: S 4 ft at 5 seconds and SE 2 ft at 8 seconds. A slight chance of showers and tstms in the afternoon. .SUN NIGHT...N winds 20 to 25 kt, diminishing to 15 to 20 kt after midnight. Gusts up to 30 kt. Seas 5 to 7 ft. Wave Detail: NE 6 ft at 8 seconds and NW 4 ft at 5 seconds. A chance of showers with a slight chance of tstms in the evening, then a slight chance of showers after midnight. .MON...N winds 10 to 15 kt with gusts up to 25 kt. Seas 5 to 7 ft. Wave Detail: NE 6 ft at 9 seconds and NW 2 ft at 5 seconds. .MON NIGHT...W winds 10 to 15 kt, becoming N with gusts up to 25 kt after midnight. Seas 3 to 5 ft. Wave Detail: E 4 ft at 8 seconds and NW 3 ft at 4 seconds. .TUE...NE winds 15 to 20 kt, diminishing to 10 to 15 kt in the afternoon. Gusts up to 25 kt. Seas 3 to 5 ft. Wave Detail: N 5 ft at 5 seconds. .TUE NIGHT...E winds 5 to 10 kt, becoming SE after midnight. Seas 3 to 4 ft. .WED...SW winds 10 to 15 kt. Seas 2 to 3 ft. .WED NIGHT...SW winds 15 to 20 kt. Seas 3 to 4 ft. .THU...W winds 15 to 20 kt, becoming SW 10 to 15 kt in the afternoon. Seas 2 to 4 ft. .THU NIGHT...SW winds 10 to 15 kt. Seas 3 ft. Winds and seas higher in and near tstms. $$ AMZ284-191115- Waters from Little River Inlet SC to South Santee River SC from 20 to 60 NM- 700 PM EDT Sat Apr 18 2026 .TONIGHT...S winds 10 to 15 kt with gusts up to 25 kt, becoming SW 15 to 20 kt with gusts up to 25 kt late. Seas 3 to 5 ft. Wave Detail: S 4 ft at 5 seconds and SE 2 ft at 8 seconds. .SUN...SW winds 15 to 20 kt, becoming W in the afternoon. Gusts up to 25 kt. Seas 4 to 5 ft. Wave Detail: SW 4 ft at 5 seconds and SE 2 ft at 8 seconds. A chance of showers in the afternoon. .SUN NIGHT...N winds 20 to 25 kt, diminishing to 15 to 20 kt after midnight. Seas 4 to 6 ft. Wave Detail: N 5 ft at 5 seconds and E 1 ft at 11 seconds. A slight chance of tstms in the evening. A slight chance of showers. .MON...N winds 15 to 20 kt, diminishing to 10 to 15 kt in the afternoon. Seas 4 to 6 ft. Wave Detail: NE 5 ft at 8 seconds and NW 1 ft at 5 seconds. .MON NIGHT...SW winds 5 to 10 kt, becoming N 10 to 15 kt with gusts up to 20 kt after midnight. Seas 3 to 5 ft. Wave Detail: E 5 ft at 9 seconds and NW 2 ft at 3 seconds. .TUE...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 4 ft. Wave Detail: NE 4 ft at 8 seconds and NW 2 ft at 4 seconds. .TUE NIGHT...SE winds 5 to 10 kt. Seas 2 to 4 ft. .WED...S winds 5 to 10 kt, becoming SW 10 to 15 kt in the afternoon. Seas 2 to 3 ft. .WED NIGHT...SW winds 15 to 20 kt. Seas 3 ft. .THU...W winds 15 to 20 kt, becoming SW 10 to 15 kt in the afternoon. Seas 2 to 3 ft. .THU NIGHT...SW winds 10 to 15 kt. Seas 2 to 3 ft. Winds and seas higher in and near tstms. $$