Coastal Waters Forecast
Issued by NWS Upton, NY
Issued by NWS Upton, NY
198 FZUS51 KOKX 220010 CWFOKX Coastal Waters Forecast National Weather Service New York NY 810 PM EDT Fri Aug 21 2026 Montauk Point NY to Sandy Hook NJ out 60 nm offshore, including Long Island Sound, the Long Island Bays, and New York Harbor ANZ300-221000- 810 PM EDT Fri Aug 21 2026 .Synopsis for the Long Island and Connecticut coastal waters... An area of low pressure offshore moves farther out to sea tonight. Another wave of low pressure approaches Saturday night into Sunday. High pressure returns for early to mid next week. $$ ANZ350-221000- Moriches Inlet NY to Montauk Point NY out 20 NM- 810 PM EDT Fri Aug 21 2026 .TONIGHT...NE winds around 15 kt with gusts up to 20 kt, diminishing to 10 to 15 kt with gusts up to 25 kt late this evening and overnight. Seas 3 to 4 ft, occasionally to 5 ft. Wave Detail: NE 4 ft at 6 seconds and S 1 ft at 5 seconds. Slight chance of showers early this evening. .SAT...NE winds 5 to 10 kt. Seas 2 to 4 ft, occasionally to 5 ft. Wave Detail: E 3 ft at 7 seconds and SW 1 ft at 5 seconds. Slight chance of showers. .SAT NIGHT...E winds 5 to 10 kt. Seas around 2 ft. Wave Detail: E 2 ft at 5 seconds and SE 1 ft at 8 seconds. Chance of showers. Slight chance of tstms after midnight. .SUN...E winds 5 to 10 kt, becoming SW in the afternoon. Seas around 2 ft. Wave Detail: SE 2 ft at 5 seconds and SE 2 ft at 8 seconds. Showers likely with slight chance of tstms in the morning, then chance of showers in the afternoon. .SUN NIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: S 3 ft at 6 seconds and SE 1 ft at 12 seconds. .MON...W winds 5 to 10 kt, becoming SW 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas around 3 ft. Wave Detail: S 3 ft at 6 seconds and SE 1 ft at 12 seconds. .MON NIGHT...W winds 10 to 15 kt. Seas 2 to 3 ft. .TUE...W winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. .TUE NIGHT...W winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. .WED...SW winds 5 to 10 kt. Seas around 2 ft. .WED NIGHT...S winds 5 to 10 kt. Seas 2 to 3 ft. Winds and seas may be higher in and near tstms. $$ ANZ353-221000- Fire Island Inlet NY to Moriches Inlet NY out 20 NM- 810 PM EDT Fri Aug 21 2026 .TONIGHT...NE winds 10 to 15 kt. 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...NE winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at 7 seconds and S 1 ft at 5 seconds. Slight chance of showers. .SAT NIGHT...E winds 5 to 10 kt. Seas around 2 ft. Wave Detail: E 2 ft at 7 seconds and SE 1 ft at 13 seconds. Chance of showers. Slight chance of tstms in the evening, then chance of tstms after midnight. .SUN...E winds 5 to 10 kt, becoming SW in the afternoon. Seas around 2 ft. Wave Detail: SE 2 ft at 5 seconds and SE 1 ft at 8 seconds. Showers likely with slight chance of tstms in the morning, then chance of showers in the afternoon. .SUN NIGHT...SW winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: S 3 ft at 5 seconds and SE 2 ft at 8 seconds. .MON...W winds 10 to 15 kt. Seas around 3 ft. Wave Detail: S 3 ft at 7 seconds and W 1 ft at 3 seconds. .MON NIGHT...W winds 10 to 15 kt. Seas 2 to 3 ft. .TUE...W winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. .TUE NIGHT...W winds 10 to 15 kt. Seas 2 to 3 ft. .WED...SW winds 5 to 10 kt. Seas around 2 ft. .WED NIGHT...S winds around 10 kt. Seas around 2 ft. Chance of showers. Winds and seas may be higher in and near tstms. $$ ANZ355-221000- Sandy Hook NJ to Fire Island Inlet NY out 20 NM- 810 PM EDT Fri Aug 21 2026 .TONIGHT...NE winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at 6 seconds and S 1 ft at 5 seconds. .SAT...E winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at 7 seconds. Slight chance of showers. .SAT NIGHT...E winds 5 to 10 kt. Seas around 2 ft. Wave Detail: E 2 ft at 7 seconds and SE 1 ft at 13 seconds. Chance of showers and tstms. .SUN...E winds 5 to 10 kt, becoming SW in the afternoon. Seas around 2 ft. Wave Detail: SE 2 ft at 4 seconds and SE 1 ft at 8 seconds. Showers likely with chance of tstms in the morning, then chance of showers and slight chance of tstms in the afternoon. .SUN NIGHT...W winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: SW 2 ft at 4 seconds and E 1 ft at 5 seconds. Chance of showers and slight chance of tstms in the evening. .MON...W winds around 10 kt. Seas 2 to 3 ft. Wave Detail: SE 2 ft at 6 seconds and W 1 ft at 3 seconds. .MON NIGHT...W winds 10 to 15 kt. Seas 2 to 3 ft. .TUE...W winds around 10 kt. Seas around 2 ft. .TUE NIGHT...W winds 5 to 10 kt. Seas around 2 ft. .WED...SW winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. .WED NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Chance of showers. Winds and seas may be higher in and near tstms. $$ ANZ332-221000- Long Island Sound East of the Mouth of the Connecticut River- 810 PM EDT Fri Aug 21 2026 .TONIGHT...NE winds 10 to 15 kt with gusts up to 20 kt, becoming N 5 to 10 kt after midnight. Seas 2 to 3 ft. Wave Detail: NE 2 ft at 5 seconds. Slight chance of showers early this evening, then chance of showers after midnight. .SAT...NE winds 5 to 10 kt, becoming E in the afternoon. Seas around 2 ft. Wave Detail: NE 2 ft at 5 seconds. Slight chance of showers in the afternoon. .SAT NIGHT...E winds around 5 kt. Seas 1 ft or less. Wave Detail: E 1 ft at 4 seconds. Chance of showers. Slight chance of tstms after midnight. .SUN...E winds 5 to 10 kt, becoming S in the afternoon. Seas 1 ft or less, then around 2 ft in the afternoon. Wave Detail: E 1 ft at 2 seconds and E 1 ft at 8 seconds, becoming E 1 ft at 3 seconds. Slight chance of tstms. Showers likely, mainly in the morning. .SUN NIGHT...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: S 1 ft at 2 seconds. .MON...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SW 1 ft at 2 seconds and SE 1 ft at 7 seconds. .MON NIGHT...W winds 5 to 10 kt. Seas around 2 ft. .TUE...W winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. .TUE NIGHT...W winds 5 to 10 kt. Seas around 2 ft. .WED...SW winds 5 to 10 kt. Seas 1 ft or less. .WED NIGHT...S winds 5 to 10 kt. Seas 1 ft or less. Winds and seas may be higher in and near tstms. $$ ANZ331-221000- Long Island Sound East of New Haven CT/Port Jefferson NY to the Mouth of the Connecticut River- 810 PM EDT Fri Aug 21 2026 .TONIGHT...NE winds 5 to 10 kt. Seas 1 ft or less. Wave Detail: NE 1 ft at 3 seconds. Slight chance of showers after midnight. .SAT...NE winds 5 to 10 kt, becoming E in the afternoon. Seas 1 ft or less. Wave Detail: NE 1 ft at 4 seconds. Slight chance of showers in the afternoon. .SAT NIGHT...E winds around 5 kt. Seas 1 ft or less. Chance of showers and slight chance of tstms. .SUN...E winds around 5 kt, becoming S in the afternoon. Seas 1 ft or less. Chance of showers and slight chance of tstms. .SUN NIGHT...SW winds 5 to 10 kt. Seas 1 ft or less. Chance of showers and slight chance of tstms in the evening. .MON...W winds 5 to 10 kt. Seas 1 ft or less. Wave Detail: W 1 ft at 2 seconds. .MON NIGHT...W winds 5 to 10 kt. Seas 1 ft or less. .TUE...W winds 5 to 10 kt with gusts up to 20 kt. Seas 1 ft or less. .TUE NIGHT...W winds 5 to 10 kt. Seas 1 ft or less. .WED...SW winds 5 to 10 kt. Seas 1 ft or less. .WED NIGHT...S winds 5 to 10 kt. Seas 1 ft or less. Chance of showers. Winds and seas may be higher in and near tstms. $$ ANZ335-221000- Long Island Sound West of New Haven CT/Port Jefferson NY- 810 PM EDT Fri Aug 21 2026 .TONIGHT...NE winds 5 to 10 kt. Seas 1 ft or less. Wave Detail: NE 1 ft at 3 seconds. .SAT...NE winds 5 to 10 kt. Seas 1 ft or less. Wave Detail: NE 1 ft at 3 seconds. Slight chance of showers in the afternoon. .SAT NIGHT...E winds around 5 kt. Seas 1 ft or less. Chance of showers and slight chance of tstms. .SUN...E winds around 5 kt, becoming S in the afternoon. Seas 1 ft or less. Chance of showers. Slight chance of tstms in the morning, then chance of tstms in the afternoon. .SUN NIGHT...W winds 5 to 10 kt. Seas 1 ft or less. Chance of showers and slight chance of tstms in the evening. .MON...W winds 5 to 10 kt. Seas 1 ft or less. .MON NIGHT...W winds 5 to 10 kt. Seas 1 ft or less. .TUE...W winds 5 to 10 kt. Seas 1 ft or less. .TUE NIGHT...W winds 5 to 10 kt. Seas 1 ft or less. .WED...SW winds 5 to 10 kt. Seas 1 ft or less. .WED NIGHT...S winds 5 to 10 kt. Seas 1 ft or less. Chance of showers. Winds and seas may be higher in and near tstms. $$ ANZ338-221000- New York Harbor- 810 PM EDT Fri Aug 21 2026 .TONIGHT...NE winds around 5 kt. Waves 1 ft or less. .SAT...E winds around 5 kt. Waves 1 ft or less. Slight chance of showers. .SAT NIGHT...E winds 5 to 10 kt. Waves 1 ft or less. Chance of showers and slight chance of tstms. .SUN...E winds around 5 kt, becoming SW in the afternoon. Waves 1 ft or less. Showers likely with chance of tstms in the morning, then chance of showers and slight chance of tstms in the afternoon. .SUN NIGHT...W winds 5 to 10 kt. Waves 1 ft or less. Chance of showers and slight chance of tstms in the evening. .MON...W winds 5 to 10 kt. Waves 1 to 2 ft. .MON NIGHT...W winds 5 to 10 kt. Waves 1 to 2 ft in the evening, then 1 ft or less. .TUE...W winds 5 to 10 kt. Waves 1 ft or less. .TUE NIGHT...W winds 5 to 10 kt. Waves 1 ft or less. .WED...SW winds 5 to 10 kt. Waves 1 ft or less. .WED NIGHT...S winds 5 to 10 kt. Waves 1 ft or less. Chance of showers. Winds and waves may be higher in and near tstms. $$ ANZ340-221000- Peconic and Gardiners Bays- 810 PM EDT Fri Aug 21 2026 .TONIGHT...NE winds 5 to 10 kt. Waves 1 to 2 ft early this evening, then 1 ft or less. Slight chance of showers early this evening. .SAT...NE winds 5 to 10 kt, diminishing to around 5 kt in the afternoon. Waves 1 ft or less. Slight chance of showers in the afternoon. .SAT NIGHT...E winds around 5 kt. Waves 1 ft or less. Chance of showers. Slight chance of tstms after midnight. .SUN...E winds around 5 kt, becoming S in the afternoon. Waves 1 ft or less. Showers likely with slight chance of tstms in the morning, then chance of showers in the afternoon. .SUN NIGHT...SW winds 5 to 10 kt. Waves 1 ft or less. .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...SW winds 5 to 10 kt. Waves 1 ft or less. .WED NIGHT...S winds 5 to 10 kt. Waves 1 ft or less. Chance of showers. Winds and waves may be higher in and near tstms. $$ ANZ345-221000- South Shore Bays from Jones Inlet through Shinnecock Bay- 810 PM EDT Fri Aug 21 2026 .TONIGHT...NE winds 5 to 10 kt. Waves 1 ft or less. .SAT...NE winds 5 to 10 kt. Waves 1 ft or less. Slight chance of showers in the afternoon. .SAT NIGHT...E winds around 5 kt. Waves 1 ft or less. Chance of showers and slight chance of tstms. .SUN...E winds around 5 kt, becoming SW in the afternoon. Waves 1 ft or less. Slight chance of tstms. Showers likely, mainly in the morning. .SUN NIGHT...W winds 5 to 10 kt. Waves 1 ft or less. Slight chance of showers and tstms in the evening. .MON...W winds 5 to 10 kt, becoming SW 10 to 15 kt with gusts up to 20 kt in the afternoon. Waves 1 ft or less. .MON NIGHT...W winds 5 to 10 kt. Waves 1 ft or less. .TUE...W winds 5 to 10 kt with gusts up to 20 kt. Waves 1 ft or less. .TUE NIGHT...W winds 5 to 10 kt. Waves 1 ft or less. .WED...SW winds 5 to 10 kt. Waves 1 ft or less. .WED NIGHT...S winds 5 to 10 kt. Waves 1 ft or less. Chance of showers. Winds and waves may be higher in and near tstms. $$ ANZ380-221000- Waters from Moriches Inlet NY to Montauk Point NY from 20 to 60 nm- 810 PM EDT Fri Aug 21 2026 .TONIGHT...N winds around 15 kt with gusts up to 25 kt, diminishing to 10 to 15 kt with gusts up to 20 kt after midnight. Seas 4 to 5 ft, occasionally to 6 ft. Wave Detail: E 5 ft at 7 seconds and S 1 ft at 5 seconds. Slight chance of showers early this evening. .SAT...NE winds 10 to 15 kt, diminishing to 5 to 10 kt in the afternoon. Seas 3 to 4 ft, occasionally to 5 ft. Wave Detail: E 3 ft at 7 seconds and SW 1 ft at 5 seconds. Slight chance of showers in the morning, then chance of showers in the afternoon. .SAT NIGHT...SE winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: NE 2 ft at 5 seconds and E 2 ft at 8 seconds. Slight chance of tstms. Chance of showers in the evening, then showers likely after midnight. .SUN...SW winds around 10 kt. Seas 2 to 3 ft. Wave Detail: S 2 ft at 4 seconds and NE 1 ft at 5 seconds. Showers and slight chance of tstms in the morning, then slight chance of showers in the afternoon. .SUN NIGHT...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...W winds 10 to 15 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. .TUE...W winds 10 to 15 kt with gusts up to 20 kt. Seas around 3 ft. .TUE NIGHT...W winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. .WED...SW winds 5 to 10 kt. Seas around 2 ft. .WED NIGHT...S winds 5 to 10 kt. Seas 2 to 3 ft. Winds and seas may be higher in and near tstms. $$ ANZ383-221000- Waters from Fire Island Inlet NY to Moriches Inlet NY from 20 to 60 nm- 810 PM EDT Fri Aug 21 2026 .TONIGHT...N winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft, occasionally to 6 ft. Wave Detail: NE 4 ft at 6 seconds and SW 1 ft at 5 seconds. Slight chance of showers after midnight. .SAT...NE winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at 7 seconds and S 1 ft at 5 seconds. Chance of showers. .SAT NIGHT...E winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 2 ft at 7 seconds and SE 1 ft at 13 seconds. Chance of showers and slight chance of tstms in the evening, then showers likely with chance of tstms after midnight. .SUN...SW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: S 2 ft at 3 seconds and E 2 ft at 5 seconds. Showers likely with slight chance of tstms in the morning, then slight chance of showers in the afternoon. .SUN NIGHT...W winds around 10 kt. Seas 3 to 4 ft, occasionally to 5 ft. Wave Detail: S 3 ft at 6 seconds and E 1 ft at 4 seconds. .MON...W winds around 10 kt. Seas around 3 ft. Wave Detail: S 3 ft at 7 seconds and NW 1 ft at 3 seconds. .MON NIGHT...W winds around 10 kt. Seas around 3 ft. .TUE...W winds around 10 kt. Seas 2 to 3 ft. .TUE NIGHT...W winds around 10 kt. Seas 2 to 3 ft. .WED...SW winds 5 to 10 kt. Seas around 2 ft. .WED NIGHT...S winds around 10 kt. Seas around 2 ft. Chance of showers. Winds and seas may be higher in and near tstms. $$ ANZ385-221000- Waters from Sandy Hook NJ to Fire Island Inlet NY from 20 to 60 nm- 810 PM EDT Fri Aug 21 2026 .TONIGHT...NE winds 10 to 15 kt with gusts up to 20 kt, diminishing to 5 to 10 kt after midnight. Seas 3 to 4 ft, occasionally to 5 ft. Wave Detail: NE 4 ft at 6 seconds and S 1 ft at 5 seconds. .SAT...NE winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at 7 seconds and S 1 ft at 5 seconds. Chance of showers. .SAT NIGHT...E winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 2 ft at 7 seconds and SE 1 ft at 13 seconds. Chance of tstms. Chance of showers in the evening, then showers likely after midnight. .SUN...S winds 5 to 10 kt, becoming SW in the afternoon. Seas 2 to 3 ft. Wave Detail: S 2 ft at 4 seconds and E 2 ft at 5 seconds. Showers likely with slight chance of tstms in the morning, then slight chance of showers in the afternoon. .SUN NIGHT...W winds 10 to 15 kt. Seas 3 to 4 ft, occasionally to 5 ft. Wave Detail: S 3 ft at 5 seconds and E 2 ft at 8 seconds. .MON...W winds around 10 kt. Seas around 3 ft. Wave Detail: S 2 ft at 7 seconds and NW 1 ft at 3 seconds. .MON NIGHT...W winds 10 to 15 kt. Seas around 3 ft. .TUE...W winds around 10 kt. Seas 2 to 3 ft. .TUE NIGHT...W winds 5 to 10 kt. Seas around 2 ft. .WED...SW winds 5 to 10 kt. Seas around 2 ft. .WED NIGHT...S winds around 10 kt. Seas around 2 ft. Chance of showers. Winds and seas may be higher in and near tstms. $$