Coastal Waters Forecast
Issued by NWS Upton, NY
Issued by NWS Upton, NY
817 FZUS51 KOKX 160620 CWFOKX Coastal Waters Forecast National Weather Service New York NY 220 AM EDT Sun Aug 16 2026 Montauk Point NY to Sandy Hook NJ out 60 nm offshore, including Long Island Sound, the Long Island Bays, and New York Harbor ANZ300-161915- 220 AM EDT Sun Aug 16 2026 .Synopsis for the Long Island and Connecticut coastal waters... High pressure gradually moves offshore through this evening. A Low pressure develops on an approaching warm front tonight into early Monday, moving east of the area Monday afternoon. A cold front follows Monday night with high pressure returning through Wednesday. A cold front moves across the waters on Thursday. $$ ANZ350-161915- Moriches Inlet NY to Montauk Point NY out 20 NM- 220 AM EDT Sun Aug 16 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH MONDAY AFTERNOON... .TODAY...SW winds around 5 kt, becoming S 10 to 15 kt. Seas 1 ft or less, then around 2 ft this afternoon. Wave Detail: S 1 ft at 6 seconds and SE 1 ft at 9 seconds, becoming S 2 ft at 6 seconds and SE 1 ft at 9 seconds. .TONIGHT...S winds 10 to 15 kt, increasing to 20 to 25 kt after midnight. Seas 2 to 3 ft, building to 3 to 5 ft, occasionally to 6 ft after midnight. Wave Detail: S 3 ft at 4 seconds and SE 1 ft at 9 seconds, becoming S 5 ft at 5 seconds and SE 1 ft at 9 seconds. Chance of showers. .MON...S winds 20 to 25 kt, becoming W 10 to 15 kt in the afternoon. Seas 4 to 6 ft, occasionally to 8 ft. Wave Detail: S 6 ft at 6 seconds. Showers and slight chance of tstms in the morning, then showers likely in the afternoon. .MON NIGHT...N winds 5 to 10 kt. Seas 3 to 4 ft, occasionally to 5 ft. Wave Detail: S 4 ft at 7 seconds. .TUE...N winds 5 to 10 kt, becoming E in the afternoon. Seas 3 to 4 ft, occasionally to 5 ft. Wave Detail: S 3 ft at 7 seconds. .TUE NIGHT...SW winds around 5 kt. Seas around 3 ft. Wave Detail: S 3 ft at 7 seconds. .WED...SW winds 5 to 10 kt. Seas 2 to 3 ft. .WED NIGHT...SW winds around 10 kt. Seas 2 to 3 ft. .THU...W winds 5 to 10 kt. Seas 2 to 3 ft. Chance of showers. .THU NIGHT...NW winds 5 to 10 kt. Seas around 2 ft. Winds and seas may be higher in and near tstms. $$ ANZ353-161915- Fire Island Inlet NY to Moriches Inlet NY out 20 NM- 220 AM EDT Sun Aug 16 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH MONDAY AFTERNOON... .TODAY...S 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: SE 2 ft at 5 seconds and SE 1 ft at 9 seconds. .TONIGHT...S winds 15 to 20 kt, increasing to 20 to 25 kt after midnight. Seas 3 to 5 ft, occasionally to 6 ft. Wave Detail: S 5 ft at 5 seconds and SE 1 ft at 9 seconds. Chance of showers in the evening, then showers likely with slight chance of tstms after midnight. .MON...S winds 20 to 25 kt, becoming W 10 to 15 kt in the afternoon. Seas 4 to 6 ft, occasionally to 8 ft. Wave Detail: S 6 ft at 6 seconds. Showers and slight chance of tstms in the morning, then chance of showers in the afternoon. .MON NIGHT...N winds 5 to 10 kt. Seas 3 to 4 ft, occasionally to 5 ft. Wave Detail: S 4 ft at 6 seconds. .TUE...N winds 5 to 10 kt, becoming SW in the afternoon. Seas around 3 ft. Wave Detail: SE 3 ft at 8 seconds. .TUE NIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 7 seconds. .WED...SW winds 10 to 15 kt. Seas 2 to 3 ft. .WED NIGHT...SW winds 10 to 15 kt. Seas 2 to 3 ft. .THU...W winds 5 to 10 kt. Seas 2 to 3 ft. Chance of showers. .THU NIGHT...NW winds 10 to 15 kt. Seas around 2 ft. Winds and seas may be higher in and near tstms. $$ ANZ355-161915- Sandy Hook NJ to Fire Island Inlet NY out 20 NM- 220 AM EDT Sun Aug 16 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM THIS AFTERNOON THROUGH MONDAY MORNING... .TODAY...S winds around 5 kt, increasing to 10 to 15 kt with gusts up to 25 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 4 seconds and SE 1 ft at 9 seconds. Slight chance of showers late. .TONIGHT...S winds 15 to 20 kt, increasing to 20 to 25 kt after midnight. Seas 3 to 5 ft, occasionally to 6 ft. Wave Detail: S 5 ft at 5 seconds and SE 1 ft at 9 seconds. Showers likely in the evening, then showers and slight chance of tstms after midnight. .MON...SW winds 15 to 20 kt with gusts up to 25 kt, becoming NW 5 to 10 kt in the afternoon. Seas 3 to 5 ft, occasionally to 6 ft. Wave Detail: S 5 ft at 6 seconds. Showers and slight chance of tstms in the morning. .MON NIGHT...N winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: S 3 ft at 6 seconds. .TUE...N winds 5 to 10 kt, becoming W in the afternoon. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 7 seconds. .TUE NIGHT...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: S 2 ft at 7 seconds and SE 1 ft at 11 seconds. .WED...SW winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. .WED NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Chance of showers. .THU...W winds 5 to 10 kt. Seas around 2 ft. Chance of showers. .THU NIGHT...N winds 5 to 10 kt. Seas around 2 ft. Winds and seas may be higher in and near tstms. $$ ANZ332-161915- Long Island Sound East of the Mouth of the Connecticut River- 220 AM EDT Sun Aug 16 2026 .TODAY...N winds around 5 kt, becoming E late this morning, then becoming S this afternoon. Seas 1 ft or less. .TONIGHT...S winds 10 to 15 kt. Seas around 2 ft. Wave Detail: S 2 ft at 3 seconds. Slight chance of showers in the evening, then showers likely after midnight. .MON...SE winds 10 to 15 kt, becoming E in the afternoon. Seas 2 to 3 ft. Wave Detail: SE 2 ft at 3 seconds. Showers and slight chance of tstms in the morning, then slight chance of showers in the afternoon. .MON NIGHT...N winds around 5 kt. Seas around 2 ft. Wave Detail: E 1 ft at 3 seconds. .TUE...N winds around 5 kt, becoming SW in the afternoon. Seas around 2 ft. .TUE NIGHT...SW winds around 5 kt. Seas around 2 ft. Wave Detail: E 1 ft at 8 seconds. .WED...SW winds 5 to 10 kt. Seas 1 to 2 ft. .WED NIGHT...SW winds 5 to 10 kt. Seas around 2 ft. .THU...W winds around 5 kt. Seas 1 ft or less. Chance of showers. .THU NIGHT...NW winds 5 to 10 kt. Seas 1 ft or less. Winds and seas may be higher in and near tstms. $$ ANZ331-161915- Long Island Sound East of New Haven CT/Port Jefferson NY to the Mouth of the Connecticut River- 220 AM EDT Sun Aug 16 2026 .TODAY...NE winds around 5 kt, becoming E late this morning, then becoming S with gusts up to 20 kt this afternoon. Seas 1 ft or less. .TONIGHT...S winds 10 to 15 kt, increasing to 15 to 20 kt after midnight. Seas around 2 ft. Wave Detail: S 2 ft at 3 seconds. Chance of showers in the evening, then showers after midnight. .MON...SE winds 10 to 15 kt, becoming N 5 to 10 kt in the afternoon. Seas around 2 ft in the morning, then 1 ft or less. Wave Detail: SE 2 ft at 3 seconds, becoming E 1 ft at 3 seconds. Showers and slight chance of tstms in the morning, then chance of showers in the afternoon. .MON NIGHT...N winds around 5 kt. Seas 1 ft or less. .TUE...N winds around 5 kt, becoming W around 5 kt in the afternoon. Seas 1 ft or less. .TUE NIGHT...W winds around 5 kt. Seas 1 ft or less. .WED...SW winds 5 to 10 kt. Seas 1 ft or less. .WED NIGHT...W winds 5 to 10 kt. Seas 1 ft or less. Chance of showers. .THU...NW winds around 5 kt. Seas 1 ft or less. Chance of showers. .THU NIGHT...NW winds 5 to 10 kt. Seas 1 ft or less. Winds and seas may be higher in and near tstms. $$ ANZ335-161915- Long Island Sound West of New Haven CT/Port Jefferson NY- 220 AM EDT Sun Aug 16 2026 .TODAY...E winds around 5 kt, becoming SE early this afternoon, then becoming S 10 to 15 kt with gusts up to 20 kt late. Seas 1 ft or less. Slight chance of showers late. .TONIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. Wave Detail: S 2 ft at 2 seconds. Showers likely in the evening, then showers and slight chance of tstms after midnight. .MON...SE winds 10 to 15 kt with gusts up to 20 kt, becoming N 5 to 10 kt in the afternoon. Seas 1 to 2 ft in the morning, then 1 ft or less. Wave Detail: SE 2 ft at 2 seconds, becoming E 1 ft at 3 seconds. Showers and slight chance of tstms in the morning, then slight chance of showers in the afternoon. .MON NIGHT...N winds 5 to 10 kt. Seas 1 ft or less. Slight chance of showers and tstms in the evening. .TUE...N winds 5 to 10 kt, becoming NW in the afternoon. Seas 1 ft or less. .TUE NIGHT...W winds around 5 kt. Seas 1 ft or less. .WED...W winds 5 to 10 kt. Seas 1 ft or less. .WED NIGHT...W winds 5 to 10 kt. Seas 1 ft or less. Chance of showers. .THU...NW winds around 5 kt. Seas 1 ft or less. Chance of showers. .THU NIGHT...N winds 5 to 10 kt. Seas 1 ft or less. Winds and seas may be higher in and near tstms. $$ ANZ338-161915- New York Harbor- 220 AM EDT Sun Aug 16 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM THIS AFTERNOON THROUGH LATE TONIGHT... .TODAY...S winds around 5 kt, increasing to 10 to 15 kt with gusts up to 20 kt. Waves 1 ft or less, then 1 to 2 ft this afternoon. Wave Detail: SE 1 ft at 2 seconds. Chance of showers this afternoon. .TONIGHT...S winds 15 to 20 kt with gusts up to 25 kt. Waves 2 to 3 ft. Showers likely in the evening, then showers and slight chance of tstms after midnight. .MON...W winds 10 to 15 kt with gusts up to 20 kt, becoming NW 5 to 10 kt in the afternoon. Waves 1 to 2 ft. Showers and slight chance of tstms in the morning, then slight chance of showers in the afternoon. .MON NIGHT...NW winds 5 to 10 kt. Waves 1 ft or less. Chance of showers and slight chance of tstms in the evening. .TUE...N winds 5 to 10 kt, becoming NW in the afternoon. Waves 1 ft or less. .TUE NIGHT...W winds around 5 kt. Waves 1 ft or less. .WED...SW winds 5 to 10 kt. Waves 1 ft or less. .WED NIGHT...W winds 5 to 10 kt. Waves 1 ft or less. Chance of showers. .THU...NW winds around 5 kt. Waves 1 ft or less. Chance of showers. .THU NIGHT...N winds 5 to 10 kt. Waves 1 ft or less. Winds and waves may be higher in and near tstms. $$ ANZ340-161915- Peconic and Gardiners Bays- 220 AM EDT Sun Aug 16 2026 .TODAY...Light and variable winds, becoming E around 5 kt late this morning, then becoming S this afternoon. Waves 1 ft or less. .TONIGHT...S winds 10 to 15 kt. Waves 1 ft or less. Chance of showers in the evening, then showers likely after midnight. .MON...SE winds 10 to 15 kt, becoming NE 5 to 10 kt in the afternoon. Waves 1 ft or less. Showers and slight chance of tstms in the morning, then chance of showers in the afternoon. .MON NIGHT...N winds around 5 kt. Waves 1 ft or less. .TUE...N winds around 5 kt, becoming W around 5 kt in the afternoon. Waves 1 ft or less. .TUE NIGHT...SW winds around 5 kt. Waves 1 ft or less. .WED...SW winds 5 to 10 kt. Waves 1 ft or less. .WED NIGHT...SW winds 5 to 10 kt. Waves 1 ft or less. .THU...NW winds around 5 kt. Waves 1 ft or less. Chance of showers. .THU NIGHT...NW winds around 5 kt. Waves 1 ft or less. Winds and waves may be higher in and near tstms. $$ ANZ345-161915- South Shore Bays from Jones Inlet through Shinnecock Bay- 220 AM EDT Sun Aug 16 2026 ...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH MONDAY MORNING... .TODAY...Light and variable winds, becoming SE 5 to 10 kt late this morning, then becoming S 10 to 15 kt with gusts up to 20 kt this afternoon. Waves 1 ft or less. .TONIGHT...S winds 10 to 15 kt, increasing to 20 to 25 kt after midnight. Waves 1 ft or less. Showers likely in the evening, then showers and slight chance of tstms after midnight. .MON...S winds 15 to 20 kt, becoming NW 5 to 10 kt in the afternoon. Waves 1 ft or less. Showers and slight chance of tstms in the morning, then chance of showers in the afternoon. .MON NIGHT...N winds 5 to 10 kt. Waves 1 ft or less. .TUE...N winds 5 to 10 kt, becoming W in the afternoon. Waves 1 ft or less. .TUE NIGHT...SW winds around 5 kt. Waves 1 ft or less. .WED...SW winds 5 to 10 kt. Waves 1 ft or less. .WED NIGHT...SW winds 5 to 10 kt. Waves 1 ft or less. Chance of showers. .THU...W winds 5 to 10 kt. Waves 1 ft or less. Chance of showers. .THU NIGHT...NW winds 5 to 10 kt. Waves 1 ft or less. Winds and waves may be higher in and near tstms. $$ ANZ380-161915- Waters from Moriches Inlet NY to Montauk Point NY from 20 to 60 nm- 220 AM EDT Sun Aug 16 2026 .TODAY...S winds around 5 kt, increasing to 10 to 15 kt. Seas around 2 ft. Wave Detail: S 2 ft at 6 seconds and NE 1 ft at 3 seconds. .TONIGHT...S winds 10 to 15 kt, increasing to 15 to 20 kt after midnight. Seas 2 to 3 ft, building to 3 to 5 ft, occasionally to 6 ft after midnight. Wave Detail: S 3 ft at 4 seconds and SE 1 ft at 9 seconds, becoming S 4 ft at 5 seconds and SE 1 ft at 9 seconds. Slight chance of showers in the evening, then chance of showers after midnight. .MON...S winds around 20 kt, becoming SW in the afternoon. Gusts up to 30 kt. Seas 4 to 5 ft, occasionally to 6 ft. Wave Detail: S 5 ft at 6 seconds and SE 1 ft at 9 seconds. Slight chance of tstms. Showers. .MON NIGHT...NW winds around 10 kt. Seas 4 to 5 ft, occasionally to 6 ft. Wave Detail: S 4 ft at 7 seconds. .TUE...N winds 5 to 10 kt. Seas 3 to 4 ft, occasionally to 5 ft. Wave Detail: S 4 ft at 7 seconds and N 1 ft at 2 seconds. .TUE NIGHT...SW winds around 5 kt. Seas around 3 ft. Wave Detail: SE 3 ft at 7 seconds and NE 1 ft at 3 seconds. .WED...SW winds 5 to 10 kt. Seas 2 to 3 ft. .WED NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. .THU...W winds 5 to 10 kt. Seas 2 to 3 ft. Chance of showers. .THU NIGHT...NW winds 10 to 15 kt. Seas around 2 ft. Chance of showers. Winds and seas may be higher in and near tstms. $$ ANZ383-161915- Waters from Fire Island Inlet NY to Moriches Inlet NY from 20 to 60 nm- 220 AM EDT Sun Aug 16 2026 .TODAY...S winds around 5 kt, increasing to 10 to 15 kt. Seas around 2 ft. Wave Detail: S 2 ft at 6 seconds and NE 1 ft at 4 seconds. .TONIGHT...S winds 10 to 15 kt, increasing to 20 to 25 kt after midnight. Seas 3 to 5 ft, occasionally to 6 ft. Wave Detail: S 5 ft at 5 seconds and SE 1 ft at 9 seconds. Chance of showers in the evening, then showers likely with slight chance of tstms after midnight. .MON...S winds 15 to 20 kt, becoming W 10 to 15 kt in the afternoon. Seas 4 to 5 ft, occasionally to 6 ft. Wave Detail: S 5 ft at 6 seconds and SE 1 ft at 9 seconds. Showers and slight chance of tstms in the morning, then chance of showers in the afternoon. .MON NIGHT...NW winds 5 to 10 kt. Seas 3 to 4 ft, occasionally to 5 ft. Wave Detail: S 4 ft at 7 seconds. .TUE...N winds 5 to 10 kt. Seas 3 to 4 ft, occasionally to 5 ft. Wave Detail: S 3 ft at 7 seconds and N 1 ft at 2 seconds. .TUE NIGHT...SW winds around 5 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 7 seconds. .WED...SW winds 5 to 10 kt. Seas 2 to 3 ft. .WED NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. .THU...W winds 5 to 10 kt. Seas 2 to 3 ft. Chance of showers. .THU NIGHT...NW winds 10 to 15 kt. Seas around 2 ft. Chance of showers. Winds and seas may be higher in and near tstms. $$ ANZ385-161915- Waters from Sandy Hook NJ to Fire Island Inlet NY from 20 to 60 nm- 220 AM EDT Sun Aug 16 2026 .TODAY...S 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 2 ft at 6 seconds and E 1 ft at 4 seconds. .TONIGHT...S winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 4 ft, occasionally to 5 ft. Wave Detail: S 4 ft at 5 seconds and SE 1 ft at 9 seconds. Showers likely. Slight chance of tstms after midnight. .MON...SW winds 15 to 20 kt, becoming W 10 to 15 kt in the afternoon. Seas 4 to 5 ft, occasionally to 6 ft. Wave Detail: S 5 ft at 6 seconds and SE 1 ft at 9 seconds. Showers and chance of tstms in the morning, then slight chance of showers in the afternoon. .MON NIGHT...NW winds 5 to 10 kt. Seas 3 to 4 ft, occasionally to 5 ft. Wave Detail: S 4 ft at 7 seconds. .TUE...N winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 8 seconds. .TUE NIGHT...SW winds around 5 kt. Seas 2 to 3 ft. Wave Detail: S 2 ft at 7 seconds and SE 2 ft at 8 seconds. .WED...SW winds 5 to 10 kt. Seas around 2 ft. .WED NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. .THU...W winds 5 to 10 kt. Seas 2 to 3 ft. Chance of showers. .THU NIGHT...NW winds 5 to 10 kt. Seas around 2 ft. Chance of showers. Winds and seas may be higher in and near tstms. $$