Coastal Waters Forecast
Issued by NWS Upton, NY
Issued by NWS Upton, NY
174 FZUS51 KOKX 210758 CWFOKX Coastal Waters Forecast National Weather Service New York NY 358 AM 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 ANZ300-212015- 358 AM EDT Fri Aug 21 2026 .Synopsis for the Long Island and Connecticut coastal waters... A wave of low pressure along a front slowly moves farther east today through early Saturday. Another wave of low pressure approaches Saturday night into Sunday. High pressure returns for early to mid next week. $$ ANZ350-212015- Moriches Inlet NY to Montauk Point NY out 20 NM- 358 AM EDT Fri Aug 21 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS AFTERNOON... .TODAY...NE winds 15 to 20 kt with gusts up to 30 kt. Seas 3 to 5 ft, occasionally to 6 ft. Wave Detail: NE 4 ft at 5 seconds and S 2 ft at 5 seconds. Showers likely early this morning, then chance of showers late this morning and afternoon. .TONIGHT...NE winds 10 to 15 kt. Gusts up to 25 kt in the evening. Seas 3 to 4 ft, occasionally to 5 ft. Wave Detail: NE 4 ft at 6 seconds and S 1 ft at 6 seconds. Slight chance of showers in the evening. .SAT...NE winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at 7 seconds and S 1 ft at 5 seconds. Chance of showers in the afternoon. .SAT NIGHT...SE winds 5 to 10 kt. Seas around 2 ft. Wave Detail: E 2 ft at 7 seconds and S 1 ft at 5 seconds. Showers and slight chance of tstms. .SUN...SW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: S 3 ft at 5 seconds and SE 2 ft at 8 seconds. Chance of showers and slight chance of tstms. .SUN NIGHT...SW winds 5 to 10 kt. Seas 3 to 4 ft, occasionally to 5 ft. Wave Detail: S 4 ft at 7 seconds and SE 1 ft at 12 seconds. .MON...W winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 4 ft, occasionally to 5 ft. .MON NIGHT...W winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. .TUE...W winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. .TUE NIGHT...W winds 5 to 10 kt. Seas 2 to 3 ft. Winds and seas may be higher in and near tstms. $$ ANZ353-212015- Fire Island Inlet NY to Moriches Inlet NY out 20 NM- 358 AM EDT Fri Aug 21 2026 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS AFTERNOON... .TODAY...NE winds 15 to 20 kt, diminishing to 10 to 15 kt late. Gusts up to 30 kt. Seas 3 to 5 ft, occasionally to 6 ft. Wave Detail: NE 4 ft at 5 seconds and S 2 ft at 5 seconds. Chance of showers, mainly this morning. .TONIGHT...NE winds 10 to 15 kt. Seas 3 to 4 ft, occasionally to 5 ft. Wave Detail: E 3 ft at 6 seconds and S 1 ft at 6 seconds. .SAT...NE winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at 8 seconds and S 1 ft at 5 seconds. Chance of showers in the afternoon. .SAT NIGHT...E winds around 10 kt, becoming SE after midnight. Seas around 2 ft. Wave Detail: E 2 ft at 7 seconds and S 1 ft at 4 seconds. Showers. Slight chance of tstms in the evening, then chance of tstms after midnight. .SUN...SW winds around 10 kt. Seas 2 to 3 ft. Wave Detail: S 2 ft at 4 seconds and E 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 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...W winds 10 to 15 kt with gusts up to 20 kt. Seas around 3 ft. .MON NIGHT...W winds 10 to 15 kt. Seas 2 to 3 ft. .TUE...W winds 10 to 15 kt. Seas 2 to 3 ft. .TUE NIGHT...W winds 10 to 15 kt. Seas 2 to 3 ft. Winds and seas may be higher in and near tstms. $$ ANZ355-212015- Sandy Hook NJ to Fire Island Inlet NY out 20 NM- 358 AM EDT Fri Aug 21 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 2 PM EDT THIS AFTERNOON... .TODAY...N winds 15 to 20 kt, becoming NE 10 to 15 kt this afternoon. Gusts up to 25 kt early. Seas 3 to 5 ft, occasionally to 6 ft. Wave Detail: NE 3 ft at 5 seconds and S 2 ft at 5 seconds. Chance of showers early this morning. .TONIGHT...NE winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: E 3 ft at 6 seconds and S 1 ft at 5 seconds. .SAT...NE winds 5 to 10 kt, becoming E in the afternoon. Seas 2 to 3 ft. Wave Detail: SE 2 ft at 6 seconds. Slight chance of showers in the morning, then chance of showers in the afternoon. .SAT NIGHT...SE winds 5 to 10 kt. Seas around 2 ft. Wave Detail: E 2 ft at 8 seconds and S 1 ft at 4 seconds. Chance of tstms. Showers likely, mainly in the evening. .SUN...SW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE 2 ft at 6 seconds. Chance of showers and slight chance of tstms. .SUN NIGHT...W winds around 10 kt. Seas 2 to 3 ft. Wave Detail: S 3 ft at 6 seconds and SE 3 ft at 9 seconds. Chance of showers in the evening. .MON...W winds 10 to 15 kt. Seas 2 to 3 ft. .MON NIGHT...W winds 10 to 15 kt. Seas 2 to 3 ft. .TUE...W winds 5 to 10 kt. Seas around 2 ft. .TUE NIGHT...W winds 5 to 10 kt. Seas around 2 ft. Winds and seas may be higher in and near tstms. $$ ANZ332-212015- Long Island Sound East of the Mouth of the Connecticut River- 358 AM EDT Fri Aug 21 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 2 PM EDT THIS AFTERNOON... .TODAY...NE winds 10 to 15 kt. Gusts up to 25 kt early. Seas around 2 ft. Wave Detail: NE 2 ft at 4 seconds. Showers likely early this morning, then chance of showers late this morning and afternoon. .TONIGHT...NE winds around 10 kt. Seas around 2 ft. Wave Detail: NE 2 ft at 5 seconds. Slight chance of showers in the evening. .SAT...NE winds 5 to 10 kt. Seas around 2 ft. Wave Detail: NE 2 ft at 5 seconds. Chance of showers in the afternoon. .SAT NIGHT...E winds around 5 kt. Seas 1 ft or less. Wave Detail: E 1 ft at 6 seconds. Showers likely in the evening, then showers and slight chance of tstms after midnight. .SUN...S winds 5 to 10 kt, becoming SW in the afternoon. Seas around 2 ft. Wave Detail: SE 1 ft at 2 seconds and E 1 ft at 5 seconds. Slight chance of tstms. Showers, mainly in the morning. .SUN NIGHT...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: SE 1 ft at 7 seconds. .MON...W winds 5 to 10 kt. Seas around 2 ft. .MON NIGHT...W winds 5 to 10 kt. Seas around 2 ft. .TUE...W winds 5 to 10 kt with gusts up to 20 kt. Seas around 2 ft. .TUE NIGHT...W winds 5 to 10 kt. Seas around 2 ft. Winds and seas may be higher in and near tstms. $$ ANZ331-212015- Long Island Sound East of New Haven CT/Port Jefferson NY to the Mouth of the Connecticut River- 358 AM EDT Fri Aug 21 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 2 PM EDT THIS AFTERNOON... .TODAY...NE winds 15 to 20 kt, diminishing to 10 to 15 kt this afternoon. Gusts up to 25 kt early. Seas around 2 ft. Wave Detail: NE 2 ft at 3 seconds. Chance of showers, mainly this morning. .TONIGHT...NE winds 5 to 10 kt. Seas 1 ft or less. Wave Detail: NE 1 ft at 3 seconds. Slight chance of showers in the evening. .SAT...NE winds 5 to 10 kt. Seas 1 ft or less. Wave Detail: NE 1 ft at 3 seconds. Chance of showers in the afternoon. .SAT NIGHT...E winds around 5 kt. Seas 1 ft or less. Showers likely. Slight chance of tstms after midnight. .SUN...SE winds around 5 kt, becoming SW in the afternoon. Seas 1 ft or less. Slight chance of tstms. Showers likely, mainly in the morning. .SUN NIGHT...SW winds 5 to 10 kt. Seas 1 ft or less. Wave Detail: SW 1 ft at 2 seconds. .MON...W winds 5 to 10 kt. Seas 1 ft or less. .MON NIGHT...W winds 5 to 10 kt. Seas 1 ft or less. .TUE...W winds 5 to 10 kt. Seas 1 ft or less. .TUE NIGHT...W winds 5 to 10 kt. Seas 1 ft or less. Winds and seas may be higher in and near tstms. $$ ANZ335-212015- Long Island Sound West of New Haven CT/Port Jefferson NY- 358 AM EDT Fri Aug 21 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 2 PM EDT THIS AFTERNOON... .TODAY...NE winds 10 to 15 kt. Gusts up to 25 kt early. Seas around 2 ft. Wave Detail: NE 2 ft at 3 seconds. Slight chance of showers. .TONIGHT...NE winds 5 to 10 kt. Seas 1 ft or less. Wave Detail: NE 1 ft at 4 seconds. Slight chance of showers in the evening. .SAT...NE winds 5 to 10 kt. Seas 1 ft or less. Wave Detail: NE 1 ft at 3 seconds. Chance of showers in the afternoon. .SAT NIGHT...E winds 5 to 10 kt. Seas 1 ft or less. Wave Detail: E 1 ft at 3 seconds. Showers likely with slight chance of tstms. .SUN...SE winds around 5 kt, becoming SW in the afternoon. Seas 1 ft or less. Chance of showers. Chance of tstms in the afternoon. .SUN NIGHT...W winds 5 to 10 kt. Seas 1 ft or less. Chance of showers and 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. Winds and seas may be higher in and near tstms. $$ ANZ338-212015- New York Harbor- 358 AM EDT Fri Aug 21 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 AM EDT THIS MORNING... .TODAY...N winds 10 to 15 kt with gusts up to 25 kt, becoming NE 5 to 10 kt with gusts up to 20 kt this afternoon. Waves around 2 ft. Wave Detail: NE 2 ft at 3 seconds. Slight chance of showers early this morning. .TONIGHT...NE winds around 5 kt. Waves 1 ft or less. Wave Detail: NE 1 ft at 3 seconds. .SAT...NE winds 5 to 10 kt, becoming E in the afternoon. Waves 1 ft or less. Wave Detail: E 1 ft at 3 seconds. Showers likely in the afternoon. .SAT NIGHT...E winds 5 to 10 kt. Waves 1 ft or less. Showers likely with slight chance of tstms. .SUN...W winds 5 to 10 kt. Waves 1 ft or less. Chance of showers. Slight chance of tstms in the morning, then chance of tstms in the afternoon. .SUN NIGHT...W winds 5 to 10 kt. Waves 1 ft or less, then 1 to 2 ft after midnight. Chance of showers in the evening. .MON...W winds 5 to 10 kt. Waves 1 to 2 ft. .MON NIGHT...W winds 5 to 10 kt. Waves 1 to 2 ft. .TUE...W winds 5 to 10 kt. Waves 1 ft or less. .TUE NIGHT...W winds 5 to 10 kt. Waves 1 ft or less. Winds and waves may be higher in and near tstms. $$ ANZ340-212015- Peconic and Gardiners Bays- 358 AM EDT Fri Aug 21 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 2 PM EDT THIS AFTERNOON... .TODAY...NE winds around 15 kt, diminishing to around 10 kt late. Gusts up to 25 kt early. Waves 1 to 2 ft. Chance of showers. .TONIGHT...NE winds 5 to 10 kt. Waves 1 ft or less. Slight chance of showers in the evening. .SAT...NE winds 5 to 10 kt. Waves 1 ft or less. Chance of showers in the afternoon. .SAT NIGHT...E winds around 5 kt. Waves 1 ft or less. Showers likely with slight chance of tstms. .SUN...S winds 5 to 10 kt. Waves 1 ft or less. Chance of showers and slight chance of tstms. .SUN NIGHT...SW winds 5 to 10 kt. Waves 1 ft or less. .MON...W 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. Winds and waves may be higher in and near tstms. $$ ANZ345-212015- South Shore Bays from Jones Inlet through Shinnecock Bay- 358 AM EDT Fri Aug 21 2026 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 2 PM EDT THIS AFTERNOON... .TODAY...NE winds 10 to 15 kt. Gusts up to 25 kt early. Waves 1 ft or less. Chance of showers early this morning, then slight chance of showers late this morning and afternoon. .TONIGHT...NE winds 5 to 10 kt. Waves 1 ft or less. .SAT...NE winds 5 to 10 kt, becoming E in the afternoon. Waves 1 ft or less. Chance of showers in the afternoon. .SAT NIGHT...SE winds 5 to 10 kt. Waves 1 ft or less. Showers and slight chance of tstms in the evening, then showers likely with chance of tstms after midnight. .SUN...SW winds 5 to 10 kt. Waves 1 ft or less. Chance of showers and slight chance of tstms. .SUN NIGHT...SW winds 5 to 10 kt. Waves 1 ft or less. .MON...W winds 5 to 10 kt with gusts up to 20 kt. Waves 1 ft or less. .MON NIGHT...W winds 5 to 10 kt. Waves 1 ft or less. .TUE...W winds 5 to 10 kt. Waves 1 ft or less. .TUE NIGHT...W winds 5 to 10 kt. Waves 1 ft or less. Winds and waves may be higher in and near tstms. $$ ANZ380-212015- Waters from Moriches Inlet NY to Montauk Point NY from 20 to 60 nm- 358 AM EDT Fri Aug 21 2026 .TODAY...NE winds 10 to 15 kt, increasing to 15 to 20 kt late this morning and afternoon. Gusts up to 30 kt. Seas 3 to 4 ft, occasionally to 5 ft. Wave Detail: NE 4 ft at 5 seconds and S 3 ft at 5 seconds. Chance of showers. .TONIGHT...NE winds 15 to 20 kt, becoming N 10 to 15 kt after midnight. Seas 3 to 4 ft, occasionally to 5 ft. Wave Detail: NE 4 ft at 6 seconds and S 2 ft at 6 seconds. Slight chance of showers in the evening. .SAT...N winds 5 to 10 kt. Seas 3 to 4 ft, occasionally to 5 ft. Wave Detail: NE 3 ft at 7 seconds and S 1 ft at 5 seconds. Slight chance of showers. Slight chance of tstms in the afternoon. .SAT NIGHT...SE winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: S 2 ft at 3 seconds and NE 2 ft at 7 seconds. Showers and slight chance of tstms. .SUN...SW winds around 10 kt. Seas 2 to 4 ft, occasionally to 5 ft. Wave Detail: SE 4 ft at 7 seconds. Chance of showers and slight chance of tstms. .SUN NIGHT...SW winds around 10 kt. Seas 3 to 4 ft, occasionally to 5 ft. Wave Detail: S 4 ft at 7 seconds and SE 1 ft at 12 seconds. .MON...W winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 4 ft, occasionally to 5 ft. .MON NIGHT...W winds 10 to 15 kt with gusts up to 20 kt. Seas around 3 ft. .TUE...W winds 10 to 15 kt. Seas around 3 ft. .TUE NIGHT...W winds 10 to 15 kt. Seas 2 to 3 ft. Winds and seas may be higher in and near tstms. $$ ANZ383-212015- Waters from Fire Island Inlet NY to Moriches Inlet NY from 20 to 60 nm- 358 AM EDT Fri Aug 21 2026 .TODAY...N winds 15 to 20 kt with gusts up to 30 kt. Seas 3 to 5 ft, occasionally to 6 ft. Wave Detail: NE 4 ft at 7 seconds and S 3 ft at 5 seconds. Chance of showers early this morning, then slight chance of showers late this morning and afternoon. .TONIGHT...NE winds 10 to 15 kt. Gusts up to 25 kt in the evening. Seas 3 to 4 ft, occasionally to 5 ft. Wave Detail: NE 4 ft at 6 seconds and S 1 ft at 6 seconds. .SAT...NE winds 5 to 10 kt. Seas around 3 ft. Wave Detail: NE 3 ft at 8 seconds and S 1 ft at 5 seconds. Slight chance of showers in the morning, then chance of showers and slight chance of tstms in the afternoon. .SAT NIGHT...SE winds around 10 kt, becoming S after midnight. Seas 2 to 3 ft. Wave Detail: NE 3 ft at 7 seconds and S 2 ft at 4 seconds. Showers. Slight chance of tstms in the evening, then chance of tstms after midnight. .SUN...SW winds around 10 kt. Seas 3 to 4 ft, occasionally to 5 ft. Wave Detail: S 3 ft at 5 seconds and E 2 ft at 8 seconds. Slight chance of tstms in the morning. Chance of showers. .SUN NIGHT...SW winds around 10 kt. Seas 3 to 4 ft, occasionally to 5 ft. Wave Detail: S 4 ft at 7 seconds and E 1 ft at 11 seconds. .MON...W winds 10 to 15 kt. Seas around 3 ft. .MON NIGHT...W winds around 10 kt. Seas around 3 ft. .TUE...W winds around 10 kt. Seas 2 to 3 ft. .TUE NIGHT...W winds around 10 kt. Seas around 2 ft. Winds and seas may be higher in and near tstms. $$ ANZ385-212015- Waters from Sandy Hook NJ to Fire Island Inlet NY from 20 to 60 nm- 358 AM EDT Fri Aug 21 2026 .TODAY...N winds 15 to 20 kt, becoming NE 10 to 15 kt late. Seas 3 to 5 ft, occasionally to 6 ft. Wave Detail: NE 4 ft at 5 seconds and S 3 ft at 5 seconds. Slight chance of showers this morning. .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 3 ft at 6 seconds and S 1 ft at 6 seconds. .SAT...NE winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: NE 3 ft at 7 seconds and S 1 ft at 5 seconds. Chance of showers in the morning, then showers likely in the afternoon. .SAT NIGHT...SE winds around 10 kt, becoming S after midnight. Seas 2 to 3 ft. Wave Detail: E 3 ft at 7 seconds and S 2 ft at 4 seconds. Showers and chance of tstms. .SUN...SW winds 5 to 10 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 7 seconds. Slight chance of tstms. Chance of showers, mainly in the morning. .SUN NIGHT...SW winds around 10 kt. Seas 3 to 4 ft, occasionally to 5 ft. Wave Detail: S 3 ft at 7 seconds and E 2 ft at 10 seconds. .MON...W winds around 10 kt. Seas 2 to 3 ft. .MON NIGHT...W winds 10 to 15 kt. Seas 2 to 3 ft. .TUE...W winds 5 to 10 kt. Seas 2 to 3 ft. .TUE NIGHT...W winds 5 to 10 kt. Seas around 2 ft. Winds and seas may be higher in and near tstms. $$