Coastal Waters Forecast
Issued by NWS Upton, NY
Issued by NWS Upton, NY
275 FZUS51 KOKX 180917 CWFOKX Coastal Waters Forecast National Weather Service New York NY 517 AM EDT Fri Sep 18 2026 Montauk Point NY to Sandy Hook NJ out 60 nm offshore, including Long Island Sound, the Long Island Bays, and New York Harbor ANZ300-182215- 517 AM EDT Fri Sep 18 2026 .Synopsis for the Long Island and Connecticut coastal waters... High pressure builds in today through the start of the weekend. The high moves off to the east with a warm front approaching the waters Saturday night into Sunday. Low pressure develops along the front and pushes south and east on Monday. The front remains south of the waters Tuesday with high pressure to the north. $$ ANZ350-182215- Moriches Inlet NY to Montauk Point NY out 20 NM- 517 AM EDT Fri Sep 18 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TONIGHT THROUGH SATURDAY MORNING... .TODAY...NW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SW 3 ft at 5 seconds and E 1 ft at 7 seconds. Chance of showers in the morning. .TONIGHT...N winds 10 to 15 kt, becoming NE 15 to 20 kt with gusts up to 25 kt after midnight. Seas 2 to 4 ft, occasionally to 5 ft. Wave Detail: NE 4 ft at 4 seconds and SW 2 ft at 5 seconds. .SAT...NE winds 15 to 20 kt with gusts up to 25 kt, becoming E 10 to 15 kt in the afternoon. Seas 3 to 4 ft, occasionally to 5 ft. Wave Detail: E 4 ft at 6 seconds and S 1 ft at 5 seconds. .SAT NIGHT...E winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at 7 seconds and SE 1 ft at 11 seconds. .SUN...SE winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: E 2 ft at 6 seconds and SE 1 ft at 11 seconds. Chance of showers in the afternoon. .SUN NIGHT...SE winds 10 to 15 kt. Seas 2 to 3 ft. Showers. .MON...NE winds 15 to 20 kt with gusts up to 30 kt. Seas 3 to 5 ft, occasionally to 6 ft. Chance of showers. .MON NIGHT...NE winds 25 to 30 kt. Seas 5 to 7 ft, occasionally to 9 ft. Chance of showers. .TUE...NE winds 25 to 30 kt with gusts up to 40 kt. Seas 8 to 11 ft, occasionally to 14 ft. Chance of showers. .TUE NIGHT...NE winds 25 to 35 kt with gusts up to 45 kt. Seas 9 to 13 ft, occasionally to 17 ft. Chance of showers. $$ ANZ353-182215- Fire Island Inlet NY to Moriches Inlet NY out 20 NM- 517 AM EDT Fri Sep 18 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TONIGHT THROUGH SATURDAY MORNING... .TODAY...NW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SW 3 ft at 5 seconds and E 1 ft at 7 seconds. Slight chance of showers in the morning. .TONIGHT...N winds 10 to 15 kt, becoming NE 15 to 20 kt with gusts up to 25 kt after midnight. Seas 2 to 4 ft, occasionally to 5 ft. Wave Detail: NE 4 ft at 4 seconds and W 2 ft at 5 seconds. .SAT...NE winds 15 to 20 kt with gusts up to 25 kt, becoming E 10 to 15 kt in the afternoon. Seas 3 to 4 ft, occasionally to 5 ft. Wave Detail: E 4 ft at 6 seconds and S 1 ft at 5 seconds. .SAT NIGHT...E winds around 10 kt. Seas around 3 ft. Wave Detail: E 3 ft at 7 seconds and SE 1 ft at 11 seconds. .SUN...SE winds 10 to 15 kt with gusts up to 20 kt. Seas around 3 ft. Wave Detail: E 3 ft at 7 seconds and SE 1 ft at 11 seconds. Chance of showers in the afternoon. .SUN NIGHT...SE winds 10 to 15 kt. Seas around 3 ft. Showers. .MON...NE winds 15 to 20 kt with gusts up to 30 kt. Seas 3 to 5 ft, occasionally to 6 ft. Chance of showers. .MON NIGHT...NE winds 25 to 30 kt. Seas 5 to 7 ft, occasionally to 9 ft. Chance of showers. .TUE...NE winds around 30 kt with gusts up to 40 kt. Seas 8 to 11 ft, occasionally to 14 ft. Chance of showers. .TUE NIGHT...NE winds 30 to 35 kt. Seas 9 to 13 ft, occasionally to 17 ft. Chance of showers. $$ ANZ355-182215- Sandy Hook NJ to Fire Island Inlet NY out 20 NM- 517 AM EDT Fri Sep 18 2026 .TODAY...N winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SW 2 ft at 5 seconds and E 1 ft at 7 seconds. .TONIGHT...N winds 10 to 15 kt, becoming NE 15 to 20 kt with occasional gusts up to 25 kt after midnight. Seas 2 to 4 ft, occasionally to 5 ft. Wave Detail: NE 3 ft at 4 seconds and S 2 ft at 5 seconds. .SAT...NE winds 15 to 20 kt, becoming E 10 to 15 kt in the afternoon. Seas 2 to 4 ft, occasionally to 5 ft. Wave Detail: E 4 ft at 6 seconds and S 1 ft at 5 seconds. .SAT NIGHT...E winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at 6 seconds and SE 1 ft at 11 seconds. .SUN...SE winds 10 to 15 kt with gusts up to 20 kt. Seas around 3 ft. Wave Detail: E 3 ft at 7 seconds and SE 1 ft at 11 seconds. Chance of showers in the morning, then showers likely in the afternoon. .SUN NIGHT...S winds 10 to 15 kt, becoming E after midnight. Seas around 3 ft. Showers. .MON...NE winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 5 ft, occasionally to 6 ft. Chance of showers. .MON NIGHT...NE winds 20 to 25 kt with gusts up to 35 kt. Seas 4 to 6 ft, occasionally to 8 ft. Chance of showers. .TUE...NE winds 25 to 30 kt with gusts up to 40 kt. Seas 7 to 10 ft, occasionally to 13 ft. Chance of showers. .TUE NIGHT...NE winds 25 to 30 kt with gusts up to 40 kt. Seas 8 to 11 ft, occasionally to 14 ft. Chance of showers. $$ ANZ332-182215- Long Island Sound East of the Mouth of the Connecticut River- 517 AM EDT Fri Sep 18 2026 .TODAY...NW winds 5 to 10 kt. Seas 1 ft or less. Wave Detail: W 1 ft at 2 seconds. Slight chance of showers in the morning. .TONIGHT...N winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. Wave Detail: N 2 ft at 3 seconds. .SAT...NE winds 10 to 15 kt with gusts up to 20 kt, becoming E 5 to 10 kt in the afternoon. Seas around 2 ft. Wave Detail: NE 2 ft at 4 seconds. .SAT NIGHT...SE winds around 5 kt. Seas 1 ft or less. Wave Detail: E 1 ft at 4 seconds. .SUN...SE winds 5 to 10 kt. Seas around 2 ft. Wave Detail: E 1 ft at 4 seconds. Showers likely in the afternoon. .SUN NIGHT...E winds 5 to 10 kt. Seas around 2 ft. Showers. .MON...NE winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 3 ft. Chance of showers. .MON NIGHT...NE winds 20 to 25 kt with gusts up to 30 kt. Seas 3 to 5 ft, occasionally to 6 ft. Chance of showers. .TUE...NE winds 20 to 25 kt with gusts up to 35 kt. Seas 3 to 5 ft, occasionally to 6 ft. Chance of showers. .TUE NIGHT...NE winds 20 to 25 kt with gusts up to 35 kt. Seas 4 to 6 ft, occasionally to 8 ft. Chance of showers. $$ ANZ331-182215- Long Island Sound East of New Haven CT/Port Jefferson NY to the Mouth of the Connecticut River- 517 AM EDT Fri Sep 18 2026 .TODAY...NW winds 5 to 10 kt. Seas 1 ft or less. Wave Detail: NW 1 ft at 2 seconds. .TONIGHT...N winds 10 to 15 kt with gusts up to 20 kt. Seas 1 ft or less, then around 2 ft after midnight. Wave Detail: NW 1 ft at 2 seconds, becoming NE 2 ft at 3 seconds. .SAT...NE winds 10 to 15 kt with gusts up to 20 kt, becoming E 5 to 10 kt in the afternoon. Seas around 2 ft in the morning, then 1 ft or less. Wave Detail: NE 2 ft at 3 seconds, becoming E 1 ft at 3 seconds. .SAT NIGHT...SE winds 5 to 10 kt. Seas 1 ft or less. Wave Detail: E 1 ft at 3 seconds. .SUN...SE winds 5 to 10 kt. Seas 1 ft or less. Wave Detail: E 1 ft at 2 seconds. Chance of showers in the morning, then showers likely in the afternoon. .SUN NIGHT...SE winds 5 to 10 kt, becoming E 10 to 15 kt with gusts up to 20 kt after midnight. Seas 1 ft or less. Showers. .MON...NE winds 10 to 15 kt with gusts up to 25 kt. Seas around 2 ft. Chance of showers. .MON NIGHT...NE winds 20 to 25 kt with gusts up to 30 kt. Seas 2 to 4 ft, occasionally to 5 ft. Chance of showers. .TUE...NE winds 20 to 25 kt with gusts up to 30 kt. Seas 3 to 5 ft, occasionally to 6 ft. Chance of showers. .TUE NIGHT...NE winds 20 to 25 kt with gusts up to 30 kt. Seas 3 to 5 ft, occasionally to 6 ft. Chance of showers. $$ ANZ335-182215- Long Island Sound West of New Haven CT/Port Jefferson NY- 517 AM EDT Fri Sep 18 2026 .TODAY...N winds 5 to 10 kt. Seas 1 ft or less. .TONIGHT...N winds 10 to 15 kt, becoming NE 15 to 20 kt after midnight. Seas 1 ft or less, then around 2 ft after midnight. Wave Detail: N 1 ft at 2 seconds, becoming NE 2 ft at 3 seconds. .SAT...NE winds 10 to 15 kt with gusts up to 20 kt, becoming E 5 to 10 kt in the afternoon. Seas around 2 ft. Wave Detail: NE 2 ft at 4 seconds. .SAT NIGHT...SE winds 5 to 10 kt. Seas 1 ft or less. Wave Detail: E 1 ft at 3 seconds. .SUN...SE winds 5 to 10 kt. Seas 1 ft or less. Wave Detail: E 1 ft at 2 seconds. Chance of showers in the morning, then showers in the afternoon. .SUN NIGHT...SE winds around 10 kt, becoming NE with gusts up to 20 kt after midnight. Seas 1 ft or less. Showers. .MON...NE winds 15 to 20 kt with gusts up to 25 kt. Seas around 2 ft. Chance of showers. .MON NIGHT...NE winds 20 to 25 kt with gusts up to 30 kt. Seas 2 to 4 ft, occasionally to 5 ft. Chance of showers. .TUE...NE winds 20 to 25 kt with gusts up to 30 kt. Seas 3 to 5 ft, occasionally to 6 ft. Chance of showers. .TUE NIGHT...NE winds 25 to 30 kt. Seas 3 to 5 ft, occasionally to 6 ft. Chance of showers. $$ ANZ338-182215- New York Harbor- 517 AM EDT Fri Sep 18 2026 .TODAY...N winds 5 to 10 kt. Waves 1 ft or less. .TONIGHT...N winds 10 to 15 kt with gusts up to 20 kt. Waves 1 ft or less, then around 2 ft after midnight. Wave Detail: NE 2 ft at 2 seconds. .SAT...NE winds 10 to 15 kt with gusts up to 20 kt, becoming E 5 to 10 kt in the afternoon. Waves around 2 ft. Wave Detail: NE 2 ft at 3 seconds. .SAT NIGHT...SE winds 5 to 10 kt. Waves around 2 ft. .SUN...SE winds 10 to 15 kt. Waves around 2 ft. Chance of showers in the morning, then showers in the afternoon. .SUN NIGHT...S winds 10 to 15 kt, becoming NE after midnight. Waves around 2 ft. Showers. .MON...NE winds 10 to 15 kt with gusts up to 20 kt. Waves around 2 ft. Chance of showers. .MON NIGHT...NE winds 20 to 25 kt with gusts up to 30 kt. Waves 2 to 4 ft, occasionally to 5 ft. Chance of showers. .TUE...NE winds 20 to 25 kt with gusts up to 30 kt. Waves 2 to 4 ft, occasionally to 5 ft. Chance of showers. .TUE NIGHT...NE winds 20 to 25 kt with gusts up to 30 kt. Waves 3 to 5 ft, occasionally to 6 ft. Chance of showers. $$ ANZ340-182215- Peconic and Gardiners Bays- 517 AM EDT Fri Sep 18 2026 .TODAY...NW winds 5 to 10 kt. Waves 1 ft or less. Slight chance of showers in the morning. .TONIGHT...N winds 5 to 10 kt, becoming NE 10 to 15 kt after midnight. Waves 1 ft or less, then 1 to 2 ft after midnight. .SAT...NE winds 10 to 15 kt with gusts up to 20 kt, becoming E 5 to 10 kt in the afternoon. Waves 1 to 2 ft in the morning, then 1 ft or less. .SAT NIGHT...SE winds around 5 kt. Waves 1 ft or less. .SUN...SE winds 5 to 10 kt. Waves 1 ft or less. Showers likely in the afternoon. .SUN NIGHT...SE winds 5 to 10 kt, becoming E after midnight. Waves 1 ft or less. Showers. .MON...NE winds 10 to 15 kt with gusts up to 25 kt. Waves 1 to 2 ft. Chance of showers. .MON NIGHT...NE winds 15 to 20 kt with gusts up to 30 kt. Waves around 2 ft. Chance of showers. .TUE...NE winds 20 to 25 kt with gusts up to 35 kt. Waves 2 to 4 ft. Chance of showers. .TUE NIGHT...NE winds 20 to 25 kt with gusts up to 35 kt. Waves 2 to 4 ft. Chance of showers. $$ ANZ345-182215- South Shore Bays from Jones Inlet through Shinnecock Bay- 517 AM EDT Fri Sep 18 2026 .TODAY...NW winds 5 to 10 kt. Waves 1 ft or less. .TONIGHT...N winds 5 to 10 kt, becoming NE 10 to 15 kt after midnight. Waves 1 ft or less. .SAT...NE winds 10 to 15 kt. Waves 1 ft or less. .SAT NIGHT...E winds 5 to 10 kt. Waves 1 ft or less. .SUN...SE winds 10 to 15 kt. Waves 1 ft or less. Showers likely in the afternoon. .SUN NIGHT...SE winds 10 to 15 kt, becoming E after midnight. Waves 1 ft or less. Showers. .MON...NE winds 15 to 20 kt with gusts up to 25 kt. Waves 1 ft or less. Chance of showers. .MON NIGHT...NE winds 20 to 25 kt with gusts up to 30 kt. Waves around 2 ft. Chance of showers. .TUE...NE winds 25 to 30 kt. Waves around 2 ft. Chance of showers. .TUE NIGHT...NE winds 25 to 30 kt. Waves around 2 ft. Chance of showers. $$ ANZ380-182215- Waters from Moriches Inlet NY to Montauk Point NY from 20 to 60 nm- 517 AM EDT Fri Sep 18 2026 .TODAY...W winds 10 to 15 kt with gusts up to 20 kt, becoming N 5 to 10 kt in the afternoon. Seas 3 to 4 ft, occasionally to 5 ft. Wave Detail: SW 3 ft at 5 seconds and E 2 ft at 7 seconds. Chance of showers in the morning. .TONIGHT...N winds 10 to 15 kt, becoming NE 15 to 20 kt after midnight. Seas 2 to 4 ft, occasionally to 5 ft. Wave Detail: NE 4 ft at 4 seconds and SW 2 ft at 5 seconds. .SAT...NE winds 15 to 20 kt, diminishing to 10 to 15 kt in the afternoon. Seas 4 to 5 ft, occasionally to 6 ft. Wave Detail: NE 4 ft at 6 seconds and SW 1 ft at 5 seconds. .SAT NIGHT...E winds around 10 kt. Seas 3 to 4 ft, occasionally to 5 ft. Wave Detail: E 4 ft at 7 seconds and SE 1 ft at 11 seconds. .SUN...SE winds around 10 kt. Seas around 3 ft. Wave Detail: E 3 ft at 6 seconds and S 1 ft at 9 seconds. Chance of showers in the afternoon. .SUN NIGHT...SE winds 10 to 15 kt. Seas around 3 ft. Showers likely in the evening, then showers after midnight. .MON...NE winds 20 to 25 kt with gusts up to 30 kt. Seas 4 to 6 ft, occasionally to 8 ft. Chance of showers. .MON NIGHT...NE winds 25 to 30 kt. Seas 6 to 8 ft, occasionally to 10 ft. Chance of showers. .TUE...NE winds around 30 kt with gusts up to 45 kt. Seas 9 to 12 ft, occasionally to 15 ft. Chance of showers. .TUE NIGHT...NE winds 30 to 35 kt with gusts up to 45 kt. Seas 11 to 14 ft, occasionally to 18 ft. Chance of showers. $$ ANZ383-182215- Waters from Fire Island Inlet NY to Moriches Inlet NY from 20 to 60 nm- 517 AM EDT Fri Sep 18 2026 .TODAY...NW winds 10 to 15 kt with gusts up to 20 kt, becoming N 5 to 10 kt in the afternoon. Seas 2 to 4 ft, occasionally to 5 ft. Wave Detail: SW 3 ft at 5 seconds and E 2 ft at 7 seconds. Chance of showers in the morning. .TONIGHT...N winds 10 to 15 kt, becoming NE 15 to 20 kt after midnight. Seas 2 to 4 ft, occasionally to 5 ft. Wave Detail: N 4 ft at 5 seconds and E 1 ft at 7 seconds. .SAT...NE winds 15 to 20 kt, diminishing to 10 to 15 kt in the afternoon. Seas 4 to 5 ft, occasionally to 6 ft. Wave Detail: E 4 ft at 6 seconds and SW 1 ft at 5 seconds. .SAT NIGHT...E winds around 10 kt. Seas 3 to 4 ft, occasionally to 5 ft. Wave Detail: E 4 ft at 7 seconds and SE 1 ft at 11 seconds. .SUN...SE winds 10 to 15 kt. Seas around 3 ft. Wave Detail: E 3 ft at 7 seconds and SE 1 ft at 10 seconds. Chance of showers in the afternoon. .SUN NIGHT...SE winds 10 to 15 kt. Seas around 3 ft. Showers. .MON...NE winds 15 to 20 kt with gusts up to 30 kt. Seas 4 to 6 ft, occasionally to 8 ft. Chance of showers. .MON NIGHT...NE winds 25 to 30 kt. Seas 5 to 8 ft, occasionally to 10 ft. Chance of showers. .TUE...NE winds 25 to 30 kt with gusts up to 40 kt. Seas 9 to 13 ft, occasionally to 17 ft. Chance of showers. .TUE NIGHT...NE winds around 30 kt with gusts up to 45 kt. Seas 12 to 14 ft, occasionally to 18 ft. Chance of showers. $$ ANZ385-182215- Waters from Sandy Hook NJ to Fire Island Inlet NY from 20 to 60 nm- 517 AM EDT Fri Sep 18 2026 .TODAY...NW winds 5 to 10 kt. Seas 2 to 4 ft, occasionally to 5 ft. Wave Detail: SW 3 ft at 5 seconds and E 2 ft at 7 seconds. Chance of showers in the morning. .TONIGHT...N winds 10 to 15 kt, becoming NE 15 to 20 kt after midnight. Seas 2 to 4 ft, occasionally to 5 ft. Wave Detail: N 4 ft at 5 seconds and E 1 ft at 7 seconds. .SAT...NE winds 15 to 20 kt, becoming E 10 to 15 kt in the afternoon. Seas 3 to 5 ft, occasionally to 6 ft. Wave Detail: E 4 ft at 6 seconds and S 1 ft at 5 seconds. .SAT NIGHT...E winds around 10 kt. Seas 3 to 4 ft, occasionally to 5 ft. Wave Detail: E 4 ft at 7 seconds and SE 1 ft at 11 seconds. .SUN...SE winds around 10 kt. Seas 3 to 4 ft, occasionally to 5 ft. Wave Detail: E 3 ft at 7 seconds and SE 1 ft at 11 seconds. Chance of showers in the afternoon. .SUN NIGHT...SE winds 10 to 15 kt. Seas around 3 ft. Showers. .MON...NE winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 6 ft, occasionally to 8 ft. Chance of showers. .MON NIGHT...NE winds 20 to 25 kt with gusts up to 35 kt. Seas 5 to 8 ft, occasionally to 10 ft. Chance of showers. .TUE...NE winds 25 to 30 kt with gusts up to 40 kt. Seas 9 to 12 ft, occasionally to 15 ft. Chance of showers. .TUE NIGHT...NE winds 25 to 30 kt with gusts up to 45 kt. Seas 11 to 13 ft, occasionally to 17 ft. Chance of showers. $$