FZUS52 KILM 111030 CWFILM Coastal Waters Forecast National Weather Service Wilmington NC 630 AM EDT Wed Mar 11 2026 Surf City NC to South Santee River SC out 20 NM AMZ200-112300- 630 AM EDT Wed Mar 11 2026 .Synopsis for coastal waters from Surf City North Carolina to South Santee River South Carolina out to 20 nautical miles... Sea fog remains possible this evening due to moist southwest flow. Winds increase tonight ahead of a strong cold frontal passage on Thursday. Hazardous marine conditions are expected on Thursday due to strong winds, increasing seas, and a brief period of showers and thunderstorms. Offshore flow on Thursday night will become onshore flow this weekend. Sea fog chances return late this weekend. $$ AMZ250-112300- Coastal waters from Surf City to Cape Fear NC out 20 nm- 630 AM EDT Wed Mar 11 2026 ...GALE WATCH IN EFFECT FROM THURSDAY AFTERNOON THROUGH THURSDAY EVENING... .TODAY...SW winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt this afternoon. Seas 2 to 3 ft. Wave Detail: S 3 ft at 4 seconds and SE 3 ft at 9 seconds. Patchy fog late this morning and afternoon. Vsby 1 to 3 NM early this afternoon. .TONIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 5 ft. Wave Detail: S 4 ft at 5 seconds and SE 2 ft at 9 seconds. Patchy fog. .THU...SW winds 15 to 20 kt with gusts up to 25 kt, becoming W 20 to 25 kt with gusts up to 35 kt in the afternoon. Seas 4 to 6 ft. Wave Detail: S 5 ft at 6 seconds and SE 2 ft at 9 seconds. Patchy fog in the morning. A slight chance of tstms. A chance of showers in the morning, then showers in the afternoon. .THU NIGHT...N winds 20 to 25 kt with gusts up to 35 kt, becoming NE 15 to 20 kt with gusts up to 25 kt after midnight. Seas 4 to 6 ft. Wave Detail: NW 5 ft at 7 seconds and E 4 ft at 8 seconds. Showers likely in the evening. .FRI...NE winds 10 to 15 kt with gusts up to 20 kt, becoming SE in the afternoon. Seas 2 to 4 ft. Wave Detail: NE 4 ft at 5 seconds and S 1 ft at 7 seconds. .FRI NIGHT...S winds 5 to 10 kt, becoming SW after midnight. Seas 2 to 3 ft. Wave Detail: E 3 ft at 8 seconds and E 2 ft at 5 seconds. .SAT...NW winds 5 to 10 kt, becoming E in the afternoon. Seas 2 to 3 ft. .SAT NIGHT...E winds 10 to 15 kt. Seas 2 to 3 ft. .SUN...SE winds 10 to 15 kt. Seas 3 to 5 ft. A chance of showers in the morning, then showers likely in the afternoon. .SUN NIGHT...S winds 15 to 20 kt, increasing to 20 to 25 kt after midnight. Seas 5 to 7 ft. A chance of tstms. Showers. Winds and seas higher in and near tstms. $$ AMZ252-112300- Coastal waters from Cape Fear NC to Little River Inlet SC out 20 nm- 630 AM EDT Wed Mar 11 2026 ...GALE WATCH IN EFFECT FROM THURSDAY AFTERNOON THROUGH THURSDAY EVENING... .TODAY...SW winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt this afternoon. Seas 2 to 3 ft. Wave Detail: SW 3 ft at 4 seconds and SE 3 ft at 9 seconds. Patchy fog late this morning and afternoon. Vsby 1 to 3 NM early this afternoon. .TONIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 5 ft. Wave Detail: S 4 ft at 5 seconds and SE 2 ft at 9 seconds. Patchy fog. .THU...SW winds 15 to 20 kt with gusts up to 25 kt, becoming W 20 to 25 kt with gusts up to 35 kt in the afternoon. Seas 4 to 6 ft. Wave Detail: S 5 ft at 6 seconds and SE 2 ft at 9 seconds. Patchy fog in the morning. A slight chance of tstms. A chance of showers in the morning, then showers in the afternoon. .THU NIGHT...N winds 20 to 25 kt with gusts up to 35 kt, becoming NE 15 to 20 kt with gusts up to 25 kt after midnight. Seas 4 to 6 ft. Wave Detail: W 5 ft at 7 seconds and E 3 ft at 8 seconds. Showers likely in the evening. .FRI...NE winds 15 to 20 kt, becoming SE 10 to 15 kt in the afternoon. Seas 2 to 4 ft. Wave Detail: NE 4 ft at 6 seconds and S 2 ft at 6 seconds. .FRI NIGHT...S winds 5 to 10 kt, becoming SW after midnight. Seas 2 to 3 ft. Wave Detail: E 3 ft at 7 seconds. .SAT...N winds 5 to 10 kt, becoming E in the afternoon. Seas 2 to 3 ft. .SAT NIGHT...E winds 5 to 10 kt, increasing to 10 to 15 kt after midnight. Seas 2 to 3 ft. .SUN...SE winds 10 to 15 kt. Seas 3 to 5 ft. A chance of showers in the morning, then showers likely in the afternoon. .SUN NIGHT...S winds 15 to 20 kt, increasing to 20 to 25 kt after midnight. Seas 5 to 7 ft. A chance of tstms. Showers. Winds and seas higher in and near tstms. $$ AMZ254-112300- Coastal waters from Little River Inlet to Murrells Inlet SC out 20 nm- 630 AM EDT Wed Mar 11 2026 ...GALE WATCH IN EFFECT FROM THURSDAY AFTERNOON THROUGH THURSDAY EVENING... .TODAY...SW winds 5 to 10 kt, becoming S 15 to 20 kt. Seas 2 to 4 ft. Wave Detail: S 3 ft at 4 seconds and SE 3 ft at 9 seconds. .TONIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 5 ft. Wave Detail: S 4 ft at 5 seconds and SE 2 ft at 9 seconds. Patchy fog. .THU...SW winds 15 to 20 kt, becoming W 20 to 25 kt in the afternoon. Gusts up to 30 kt. Seas 4 to 6 ft. Wave Detail: S 5 ft at 6 seconds and SE 2 ft at 9 seconds. Patchy fog in the morning. A chance of showers with a slight chance of tstms in the morning, then showers with a slight chance of tstms in the afternoon. .THU NIGHT...N winds 20 to 25 kt with gusts up to 35 kt, becoming NE 15 to 20 kt with gusts up to 25 kt after midnight. Seas 3 to 5 ft. Wave Detail: N 4 ft at 6 seconds. Showers likely in the evening. .FRI...NE winds 15 to 20 kt, becoming E 5 to 10 kt in the afternoon. Seas 2 to 4 ft. Wave Detail: E 3 ft at 5 seconds. .FRI NIGHT...S winds 5 to 10 kt, becoming SW after midnight. Seas 2 to 3 ft. Wave Detail: E 2 ft at 4 seconds and SE 2 ft at 8 seconds. .SAT...N winds 5 to 10 kt, becoming E in the afternoon. Seas 2 to 3 ft. .SAT NIGHT...E winds 5 to 10 kt, increasing to 10 to 15 kt after midnight. Seas 2 ft. .SUN...SE winds 10 to 15 kt. Seas 2 to 4 ft. A chance of showers in the morning, then showers likely in the afternoon. .SUN NIGHT...S winds 15 to 20 kt, increasing to 20 to 25 kt after midnight. Seas 4 to 6 ft. Showers likely with a chance of tstms. Winds and seas higher in and near tstms. $$ AMZ256-112300- Coastal waters from Murrells Inlet to South Santee River SC out 20 nm- 630 AM EDT Wed Mar 11 2026 ...GALE WATCH IN EFFECT FROM THURSDAY AFTERNOON THROUGH THURSDAY EVENING... .TODAY...SW winds 5 to 10 kt, increasing to 15 to 20 kt. Seas 2 to 3 ft. Wave Detail: S 3 ft at 4 seconds and SE 3 ft at 9 seconds. .TONIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 5 ft. Wave Detail: S 4 ft at 5 seconds and SE 2 ft at 9 seconds. Patchy fog. .THU...SW winds 20 kt with gusts up to 25 kt, becoming W 25 to 30 kt with gusts up to 35 kt in the afternoon. Seas 4 to 6 ft. Wave Detail: S 5 ft at 6 seconds and SE 2 ft at 9 seconds. Patchy fog in the morning. A slight chance of tstms. A chance of showers in the morning, then showers in the afternoon. .THU NIGHT...N winds 25 to 30 kt, becoming NE 20 to 25 kt after midnight. Seas 3 to 5 ft. Wave Detail: NW 4 ft at 7 seconds and E 4 ft at 8 seconds. Showers likely in the evening. .FRI...NE winds 15 to 20 kt with gusts up to 25 kt, becoming E 10 to 15 kt in the afternoon. Seas 2 to 4 ft. Wave Detail: NE 4 ft at 5 seconds and S 1 ft at 6 seconds. .FRI NIGHT...SE winds 5 to 10 kt, becoming SW after midnight. Seas 2 to 3 ft. Wave Detail: E 3 ft at 7 seconds. .SAT...N winds 5 to 10 kt, becoming E in the afternoon. Seas 2 to 3 ft. .SAT NIGHT...E winds 10 to 15 kt. Seas 2 to 3 ft. .SUN...SE winds 15 to 20 kt. Seas 2 to 4 ft. A chance of showers in the morning, then showers likely in the afternoon. .SUN NIGHT...S winds 20 to 25 kt, increasing to 25 to 30 kt after midnight. Seas 4 to 6 ft. Showers likely with a chance of tstms. Winds and seas higher in and near tstms. $$