Coastal Waters Forecast
Issued by NWS Upton, NY
Issued by NWS Upton, NY
684 FZUS51 KOKX 230732 CWFOKX Coastal Waters Forecast National Weather Service New York NY 332 AM EDT Sun Aug 23 2026 Montauk Point NY to Sandy Hook NJ out 60 nm offshore, including Long Island Sound, the Long Island Bays, and New York Harbor ANZ300-232030- 332 AM EDT Sun Aug 23 2026 .Synopsis for the Long Island and Connecticut coastal waters... A frontal system moves through the waters today into tonight. Low pressure meanders north of the waters Monday. Low pressure shifts farther north Monday night into midweek as high pressure gradually builds in from the west. Another frontal system approaches on Thursday. $$ ANZ350-232030- Moriches Inlet NY to Montauk Point NY out 20 NM- 332 AM EDT Sun Aug 23 2026 .TODAY...E winds 5 to 10 kt, becoming SW with gusts up to 20 kt late. Seas 2 to 3 ft. Wave Detail: SE 2 ft at 5 seconds and SE 2 ft at 8 seconds. Chance of showers and slight chance of tstms until late afternoon. .TONIGHT...SW winds 10 to 15 kt with gusts up to 20 kt, becoming W 5 to 10 kt after midnight. Seas 2 to 3 ft. Wave Detail: S 3 ft at 5 seconds and E 1 ft at 8 seconds. .MON...SW winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas around 3 ft. Wave Detail: SE 3 ft at 6 seconds and SE 1 ft at 12 seconds. .MON NIGHT...W winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: S 3 ft at 6 seconds and SE 1 ft at 11 seconds. .TUE...W winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave Detail: SW 3 ft at 5 seconds and E 1 ft at 6 seconds. .TUE NIGHT...W winds 10 to 15 kt with gusts up to 20 kt, diminishing to 5 to 10 kt after midnight. Seas 2 to 3 ft. Wave Detail: SW 3 ft at 5 seconds and SE 1 ft at 6 seconds. .WED...W winds 5 to 10 kt. Seas 2 to 3 ft. .WED NIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft. .THU...S winds 5 to 10 kt. Seas 2 to 3 ft. .THU NIGHT...S winds 5 to 10 kt. Seas around 3 ft. Chance of showers. Winds and seas may be higher in and near tstms. $$ ANZ353-232030- Fire Island Inlet NY to Moriches Inlet NY out 20 NM- 332 AM EDT Sun Aug 23 2026 .TODAY...SE winds around 10 kt, becoming S 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 8 seconds. Chance of showers and slight chance of tstms until late afternoon. .TONIGHT...SW winds 10 to 15 kt. Seas around 3 ft. Wave Detail: S 3 ft at 5 seconds and E 1 ft at 5 seconds. .MON...SW winds 10 to 15 kt. Seas around 3 ft. Wave Detail: SE 3 ft at 7 seconds and W 1 ft at 3 seconds. Slight chance of showers and tstms in the afternoon. .MON NIGHT...W winds 10 to 15 kt. Seas around 3 ft. Wave Detail: SW 2 ft at 5 seconds and SE 2 ft at 7 seconds. .TUE...W winds around 15 kt with gusts up to 20 kt. Seas around 3 ft. Wave Detail: S 2 ft at 6 seconds and SE 1 ft at 11 seconds. .TUE NIGHT...W winds 10 to 15 kt, becoming NW 5 to 10 kt after midnight. Seas 2 to 3 ft. Wave Detail: SW 2 ft at 5 seconds and SE 1 ft at 6 seconds. .WED...W winds 5 to 10 kt. Seas around 2 ft. .WED NIGHT...S winds 5 to 10 kt. Seas 2 to 3 ft. .THU...S winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. .THU NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas around 3 ft. Chance of showers. Winds and seas may be higher in and near tstms. $$ ANZ355-232030- Sandy Hook NJ to Fire Island Inlet NY out 20 NM- 332 AM EDT Sun Aug 23 2026 .TODAY...SE winds around 10 kt, becoming S this afternoon. Seas 2 to 3 ft. Wave Detail: SE 2 ft at 5 seconds and SE 1 ft at 8 seconds. Showers likely with chance of tstms early this morning, then chance of showers and tstms late this morning and early afternoon. .TONIGHT...W winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 7 seconds and W 1 ft at 3 seconds. .MON...W winds 5 to 10 kt, becoming SW 10 to 15 kt in the afternoon. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 7 seconds and W 1 ft at 3 seconds. Chance of showers and slight chance of tstms in the afternoon. .MON NIGHT...W winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: W 2 ft at 3 seconds and S 2 ft at 7 seconds. Slight chance of showers and tstms in the evening. .TUE...W winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: W 2 ft at 3 seconds and S 1 ft at 6 seconds. .TUE NIGHT...W winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SE 2 ft at 6 seconds and W 1 ft at 3 seconds. .WED...W winds 5 to 10 kt. Seas around 2 ft. .WED NIGHT...S winds 10 to 15 kt. Seas 2 to 3 ft. .THU...S winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Chance of showers. .THU NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Showers likely. Winds and seas may be higher in and near tstms. $$ ANZ332-232030- Long Island Sound East of the Mouth of the Connecticut River- 332 AM EDT Sun Aug 23 2026 .TODAY...E winds 5 to 10 kt, becoming S late. Seas 1 ft or less, then around 2 ft this afternoon. Wave Detail: E 1 ft at 3 seconds. Patchy fog early this morning. Showers likely with slight chance of tstms. Vsby 1 to 3 nm this morning. .TONIGHT...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: S 1 ft at 2 seconds. Slight chance of showers and tstms in the evening. .MON...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: W 1 ft at 2 seconds and SE 1 ft at 6 seconds. .MON NIGHT...W winds 5 to 10 kt. Seas around 2 ft. Wave Detail: W 1 ft at 3 seconds. .TUE...W winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. Wave Detail: W 1 ft at 3 seconds. .TUE NIGHT...W winds 5 to 10 kt. Seas around 2 ft in the evening, then 1 ft or less. Wave Detail: W 1 ft at 3 seconds. .WED...W winds 5 to 10 kt. Seas around 2 ft. .WED NIGHT...SW winds 5 to 10 kt. Seas around 2 ft. .THU...S winds 5 to 10 kt. Seas around 2 ft. .THU NIGHT...SE winds 5 to 10 kt. Seas around 2 ft. Chance of showers. Winds and seas may be higher in and near tstms. $$ ANZ331-232030- Long Island Sound East of New Haven CT/Port Jefferson NY to the Mouth of the Connecticut River- 332 AM EDT Sun Aug 23 2026 .TODAY...E winds 5 to 10 kt, becoming S late. Seas 1 ft or less. Wave Detail: S 1 ft at 2 seconds and E 1 ft at 2 seconds. Slight chance of tstms this morning. Showers. Chance of tstms this afternoon. .TONIGHT...SW winds 5 to 10 kt. Seas 1 ft or less. Wave Detail: SW 1 ft at 3 seconds. Slight chance of showers in the evening. .MON...SW winds 5 to 10 kt. Seas 1 ft or less. Wave Detail: W 1 ft at 3 seconds. .MON NIGHT...W winds around 10 kt. Seas 1 ft or less. Wave Detail: W 1 ft at 3 seconds. .TUE...W winds around 10 kt with gusts up to 20 kt. Seas 1 ft or less. Wave Detail: W 1 ft at 3 seconds. .TUE NIGHT...W winds 5 to 10 kt. Seas 1 ft or less. Wave Detail: W 1 ft at 3 seconds. .WED...W winds around 5 kt. Seas 1 ft or less. .WED NIGHT...SW winds around 5 kt. Seas 1 ft or less. .THU...S winds 5 to 10 kt with gusts up to 20 kt. Seas 1 ft or less. .THU NIGHT...S winds 5 to 10 kt. Seas 1 ft or less. Showers likely. Winds and seas may be higher in and near tstms. $$ ANZ335-232030- Long Island Sound West of New Haven CT/Port Jefferson NY- 332 AM EDT Sun Aug 23 2026 .TODAY...E winds 5 to 10 kt, becoming S late. Seas 1 ft or less. Wave Detail: E 1 ft at 2 seconds. Chance of tstms this morning. Showers likely. Chance of tstms this afternoon. .TONIGHT...W winds 5 to 10 kt. Seas 1 ft or less. Slight chance of showers in the evening. .MON...SW winds 5 to 10 kt, increasing to 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas 1 ft or less. Slight chance of showers and tstms in the afternoon. .MON NIGHT...W winds around 10 kt. Seas 1 ft or less. Wave Detail: W 1 ft at 2 seconds. Slight chance of showers and tstms in the evening. .TUE...W winds around 10 kt. Seas 1 ft or less. Wave Detail: W 1 ft at 2 seconds. .TUE NIGHT...W winds 5 to 10 kt. Seas 1 ft or less. Wave Detail: W 1 ft at 2 seconds. .WED...W winds around 5 kt. Seas 1 ft or less. .WED NIGHT...S winds 5 to 10 kt. Seas 1 ft or less. .THU...S winds 5 to 10 kt with gusts up to 20 kt. Seas 1 ft or less. Chance of showers. .THU NIGHT...SE winds 5 to 10 kt. Seas 1 ft or less. Showers likely. Winds and seas may be higher in and near tstms. $$ ANZ338-232030- New York Harbor- 332 AM EDT Sun Aug 23 2026 .TODAY...SE winds 5 to 10 kt, becoming SW this afternoon. Waves 1 ft or less. Showers likely with chance of tstms this morning. Slight chance of showers and tstms this afternoon. .TONIGHT...W winds 5 to 10 kt. Waves 1 to 2 ft. .MON...SW winds 5 to 10 kt. Waves 1 to 2 ft. Chance of showers and slight chance of tstms in the afternoon. .MON NIGHT...W winds 5 to 10 kt. Waves 1 to 2 ft. Slight chance of showers and tstms in the evening. .TUE...W winds around 10 kt. Waves 1 to 2 ft in the morning, then 1 ft or less. .TUE NIGHT...W winds 5 to 10 kt. Waves 1 ft or less. .WED...W winds 5 to 10 kt. Waves 1 ft or less. .WED NIGHT...S winds 5 to 10 kt. Waves 1 ft or less. .THU...S winds 10 to 15 kt with gusts up to 20 kt. Waves 1 to 2 ft. Chance of showers. .THU NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Waves 1 to 2 ft. Showers likely. Winds and waves may be higher in and near tstms. $$ ANZ340-232030- Peconic and Gardiners Bays- 332 AM EDT Sun Aug 23 2026 .TODAY...E winds 5 to 10 kt, becoming S this afternoon. Waves 1 ft or less. Patchy fog early this morning. Slight chance of tstms this morning. Showers likely. Slight chance of tstms this afternoon. Vsby 1 to 3 nm this morning. .TONIGHT...SW winds 5 to 10 kt. Waves 1 ft or less. Slight chance of showers in the evening. .MON...SW winds 5 to 10 kt. Waves 1 ft or less. .MON NIGHT...W winds 5 to 10 kt. Waves 1 ft or less. .TUE...W winds 5 to 10 kt. Waves 1 ft or less. .TUE NIGHT...W winds 5 to 10 kt. Waves 1 ft or less. .WED...W winds around 5 kt. Waves 1 ft or less. .WED NIGHT...SW winds around 5 kt. Waves 1 ft or less. .THU...S winds 5 to 10 kt. Waves 1 ft or less. .THU NIGHT...SE winds 5 to 10 kt. Waves 1 ft or less. Showers likely. Winds and waves may be higher in and near tstms. $$ ANZ345-232030- South Shore Bays from Jones Inlet through Shinnecock Bay- 332 AM EDT Sun Aug 23 2026 .TODAY...SE winds 5 to 10 kt, becoming S with gusts up to 20 kt this afternoon. Waves 1 ft or less. Patchy fog early this morning. Showers likely this morning. Chance of tstms. Chance of showers this afternoon. Vsby 1 to 3 nm early this morning. .TONIGHT...SW winds 10 to 15 kt, becoming W 5 to 10 kt after midnight. Waves 1 ft or less. .MON...W winds 5 to 10 kt, becoming SW 10 to 15 kt with gusts up to 20 kt in the afternoon. Waves 1 ft or less. Slight chance of showers and tstms in the afternoon. .MON NIGHT...W winds 5 to 10 kt. Waves 1 ft or less. .TUE...W winds 10 to 15 kt. Waves 1 ft or less. .TUE NIGHT...W winds 5 to 10 kt. Waves 1 ft or less. .WED...W winds 5 to 10 kt. Waves 1 ft or less. .WED NIGHT...S winds 5 to 10 kt. Waves 1 ft or less. .THU...S winds 10 to 15 kt with gusts up to 20 kt. Waves 1 ft or less. Chance of showers. .THU NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Waves 1 ft or less. Showers likely. Winds and waves may be higher in and near tstms. $$ ANZ380-232030- Waters from Moriches Inlet NY to Montauk Point NY from 20 to 60 nm- 332 AM EDT Sun Aug 23 2026 .TODAY...SE winds around 10 kt, becoming SW with gusts up to 20 kt late. Seas 2 to 3 ft. Wave Detail: S 2 ft at 3 seconds and E 2 ft at 7 seconds. Chance of showers and slight chance of tstms early this morning, then slight chance of showers late this morning and early afternoon. .TONIGHT...SW winds 10 to 15 kt. Seas 3 to 4 ft, occasionally to 5 ft. Wave Detail: SE 4 ft at 7 seconds and SE 1 ft at 12 seconds. .MON...SW winds around 10 kt. Seas 3 to 4 ft, occasionally to 5 ft. Wave Detail: S 3 ft at 6 seconds and SE 1 ft at 12 seconds. .MON NIGHT...W winds 10 to 15 kt. Seas around 3 ft. Wave Detail: SW 3 ft at 5 seconds and SE 1 ft at 6 seconds. .TUE...W winds around 15 kt with gusts up to 20 kt. Seas 3 to 4 ft, occasionally to 5 ft. Wave Detail: SW 3 ft at 5 seconds and E 1 ft at 7 seconds. .TUE NIGHT...W winds 10 to 15 kt. Seas 3 to 4 ft, occasionally to 5 ft. Wave Detail: SW 3 ft at 5 seconds and E 1 ft at 6 seconds. .WED...W winds 5 to 10 kt. Seas 2 to 3 ft. .WED NIGHT...SW winds 5 to 10 kt. Seas around 3 ft. .THU...S winds 5 to 10 kt. Seas around 3 ft. .THU NIGHT...S winds around 10 kt with gusts up to 20 kt. Seas around 3 ft. Chance of showers. Winds and seas may be higher in and near tstms. $$ ANZ383-232030- Waters from Fire Island Inlet NY to Moriches Inlet NY from 20 to 60 nm- 332 AM EDT Sun Aug 23 2026 .TODAY...S winds around 10 kt, becoming SW with gusts up to 20 kt this afternoon. Seas 2 to 3 ft. Wave Detail: S 2 ft at 4 seconds and E 2 ft at 7 seconds. Chance of showers early this morning. Slight chance of tstms this morning. Slight chance of showers late this morning and early afternoon. .TONIGHT...SW winds 10 to 15 kt. Seas 3 to 4 ft, occasionally to 5 ft. Wave Detail: S 3 ft at 5 seconds and E 1 ft at 5 seconds. .MON...W winds 5 to 10 kt, becoming SW 10 to 15 kt in the afternoon. Seas around 3 ft. Wave Detail: S 3 ft at 7 seconds and SE 1 ft at 12 seconds. .MON NIGHT...W winds 10 to 15 kt. Seas around 3 ft. Wave Detail: SW 2 ft at 5 seconds and SE 1 ft at 6 seconds. .TUE...W winds 10 to 15 kt with gusts up to 20 kt. Seas around 3 ft. Wave Detail: S 2 ft at 6 seconds and E 1 ft at 7 seconds. .TUE NIGHT...W winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: W 2 ft at 5 seconds and E 1 ft at 7 seconds. .WED...W winds 5 to 10 kt. Seas 2 to 3 ft. .WED NIGHT...S winds 5 to 10 kt. Seas 2 to 3 ft. .THU...S winds 10 to 15 kt. Seas around 3 ft. .THU NIGHT...S winds around 10 kt. Seas around 3 ft. Chance of showers. Winds and seas may be higher in and near tstms. $$ ANZ385-232030- Waters from Sandy Hook NJ to Fire Island Inlet NY from 20 to 60 nm- 332 AM EDT Sun Aug 23 2026 .TODAY...SE winds around 10 kt, becoming SW with gusts up to 20 kt late. Seas 2 to 3 ft. Wave Detail: S 2 ft at 4 seconds and E 2 ft at 5 seconds. Chance of showers and slight chance of tstms this morning, then slight chance of showers early this afternoon. .TONIGHT...W winds 10 to 15 kt. Seas 3 to 4 ft, occasionally to 5 ft. Wave Detail: SE 3 ft at 6 seconds and SE 1 ft at 12 seconds. .MON...W winds 5 to 10 kt, becoming SW 10 to 15 kt in the afternoon. Seas around 3 ft. Wave Detail: SE 2 ft at 7 seconds and SE 1 ft at 12 seconds. Slight chance of showers and tstms in the afternoon. .MON NIGHT...W winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: SW 2 ft at 5 seconds and SE 1 ft at 6 seconds. .TUE...W winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: S 2 ft at 5 seconds and SE 1 ft at 11 seconds. .TUE NIGHT...W winds 10 to 15 kt, diminishing to 5 to 10 kt after midnight. Seas 2 to 3 ft. Wave Detail: SW 2 ft at 5 seconds and NW 1 ft at 3 seconds. .WED...W winds 5 to 10 kt. Seas around 2 ft. .WED NIGHT...S winds 5 to 10 kt. Seas 2 to 3 ft. .THU...S winds 10 to 15 kt with gusts up to 20 kt. Seas around 3 ft. .THU NIGHT...S winds 10 to 15 kt. Seas around 3 ft. Chance of showers. Winds and seas may be higher in and near tstms. $$