FZUS52 KILM 180630 CWFILM Coastal Waters Forecast National Weather Service Wilmington NC 230 AM EDT Wed Mar 18 2026 Surf City NC to South Santee River SC out 20 NM AMZ200-181915- 230 AM EDT Wed Mar 18 2026 .Synopsis for coastal waters from Surf City North Carolina to South Santee River South Carolina out to 20 nautical miles... Cold high pressure will maintain light northerly flow through the end of the week. Winds shift this weekend ahead of the next cold front which is expected to impact the area early next week. $$ AMZ250-181915- Coastal waters from Surf City to Cape Fear NC out 20 nm- 230 AM EDT Wed Mar 18 2026 .REST OF TONIGHT...N winds 15 to 20 kt. Seas 3 to 4 ft. Wave Detail: SE 4 ft at 9 seconds and N 3 ft at 3 seconds. .WED...NE winds 15 to 20 kt, diminishing to 10 to 15 kt in the afternoon. Seas 3 to 5 ft. Wave Detail: SE 4 ft at 9 seconds and NE 3 ft at 4 seconds. .WED NIGHT...NE winds 10 kt. Seas 3 to 4 ft. Wave Detail: SE 4 ft at 9 seconds and NE 2 ft at 5 seconds. .THU...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 4 ft. Wave Detail: E 4 ft at 9 seconds and NE 2 ft at 5 seconds. .THU NIGHT...NE winds 5 to 10 kt. Seas 3 to 4 ft. Wave Detail: E 3 ft at 9 seconds and E 2 ft at 6 seconds. .FRI...N winds 5 kt, becoming E in the afternoon. Seas 3 ft. Wave Detail: E 3 ft at 9 seconds. .FRI NIGHT...S winds 5 to 10 kt. Seas 3 to 4 ft. .SAT...SW winds 10 to 15 kt. Seas 3 to 4 ft. .SAT NIGHT...SW winds 10 to 15 kt. Seas 3 to 4 ft. .SUN...SW winds 10 to 15 kt, increasing to 15 to 20 kt in the afternoon. Seas 2 to 4 ft. .SUN NIGHT...SW winds 15 to 20 kt, becoming W 20 to 25 kt after midnight. Seas 3 to 5 ft. $$ AMZ252-181915- Coastal waters from Cape Fear NC to Little River Inlet SC out 20 nm- 230 AM EDT Wed Mar 18 2026 .REST OF TONIGHT...N winds 10 to 15 kt. Gusts up to 20 kt late. Seas 2 to 4 ft. Wave Detail: SE 3 ft at 9 seconds and N 2 ft at 3 seconds. .WED...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft. Wave Detail: NE 3 ft at 4 seconds and SE 3 ft at 9 seconds. .WED NIGHT...NE winds 5 to 10 kt, becoming N 10 to 15 kt after midnight. Seas 2 to 4 ft. Wave Detail: NE 3 ft at 5 seconds and SE 3 ft at 9 seconds. .THU...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 4 ft. Wave Detail: SE 3 ft at 9 seconds and NE 2 ft at 5 seconds. .THU NIGHT...NE winds 5 to 10 kt, becoming N after midnight. Seas 2 to 4 ft. Wave Detail: SE 3 ft at 9 seconds and E 2 ft at 6 seconds. .FRI...N winds 5 to 10 kt, becoming E in the afternoon. Seas 2 to 3 ft. Wave Detail: E 3 ft at 9 seconds and E 1 ft at 6 seconds. .FRI NIGHT...S winds 5 to 10 kt. Seas 2 to 4 ft. .SAT...SW winds 5 to 10 kt, increasing to 10 to 15 kt in the afternoon. Seas 2 to 4 ft. .SAT NIGHT...SW winds 10 to 15 kt. Seas 3 to 4 ft. .SUN...SW winds 10 to 15 kt, increasing to 15 to 20 kt in the afternoon. Seas 2 to 4 ft. .SUN NIGHT...SW winds 15 to 20 kt, increasing to 20 to 25 kt after midnight. Seas 3 to 5 ft. $$ AMZ254-181915- Coastal waters from Little River Inlet to Murrells Inlet SC out 20 nm- 230 AM EDT Wed Mar 18 2026 .REST OF TONIGHT...N winds 10 to 15 kt, becoming NE 15 to 20 kt late. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 9 seconds and N 2 ft at 3 seconds. .WED...NE winds 15 to 20 kt, diminishing to 10 to 15 kt in the afternoon. Seas 2 to 4 ft. Wave Detail: NE 3 ft at 4 seconds and SE 3 ft at 9 seconds. .WED NIGHT...NE winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 9 seconds and E 2 ft at 5 seconds. .THU...NE winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 9 seconds and NE 2 ft at 5 seconds. .THU NIGHT...E winds 5 kt, becoming NE after midnight. Seas 2 to 3 ft. Wave Detail: E 3 ft at 9 seconds and E 1 ft at 6 seconds. .FRI...N winds 5 kt, becoming SE in the afternoon. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 9 seconds and E 1 ft at 6 seconds. .FRI NIGHT...S winds 5 to 10 kt. Seas 2 to 3 ft. .SAT...SW winds 10 to 15 kt. Seas 2 to 4 ft. .SAT NIGHT...SW winds 10 to 15 kt. Seas 2 to 4 ft. .SUN...SW winds 10 to 15 kt, increasing to 15 to 20 kt in the afternoon. Seas 2 to 4 ft. .SUN NIGHT...SW winds 15 to 20 kt, increasing to 20 to 25 kt after midnight. Seas 3 to 4 ft. $$ AMZ256-181915- Coastal waters from Murrells Inlet to South Santee River SC out 20 nm- 230 AM EDT Wed Mar 18 2026 .REST OF TONIGHT...N winds 10 kt, increasing to 15 to 20 kt late. Seas 2 to 3 ft. Wave Detail: N 2 ft at 3 seconds and SE 2 ft at 9 seconds. .WED...NE winds 15 to 20 kt, diminishing to 10 to 15 kt in the afternoon. Seas 3 to 4 ft. Wave Detail: NE 3 ft at 4 seconds and SE 3 ft at 9 seconds. .WED NIGHT...NE winds 10 to 15 kt. Seas 3 to 4 ft. Wave Detail: NE 3 ft at 5 seconds and SE 3 ft at 9 seconds. .THU...NE winds 10 to 15 kt. Gusts up to 20 kt in the morning. Seas 3 to 4 ft. Wave Detail: NE 3 ft at 5 seconds and SE 3 ft at 9 seconds. .THU NIGHT...E winds 5 to 10 kt, becoming N after midnight. Seas 2 to 4 ft. Wave Detail: E 3 ft at 9 seconds and E 2 ft at 6 seconds. .FRI...N winds 5 kt, becoming E in the afternoon. Seas 2 to 3 ft. Wave Detail: E 3 ft at 9 seconds and E 1 ft at 6 seconds. .FRI NIGHT...S winds 5 to 10 kt. Seas 2 to 3 ft. .SAT...SW winds 10 to 15 kt. Seas 3 to 4 ft. .SAT NIGHT...SW winds 10 to 15 kt. Seas 2 to 4 ft. .SUN...SW winds 15 to 20 kt. Seas 2 to 4 ft. .SUN NIGHT...SW winds 15 to 20 kt, increasing to 20 to 25 kt after midnight. Seas 3 to 4 ft. $$