Coastal Waters Forecast
Issued by NWS Upton, NY
Issued by NWS Upton, NY
717 FZUS51 KOKX 312200 CWFOKX Coastal Waters Forecast National Weather Service New York NY 600 PM EDT Thu Jul 31 2025 Montauk Point NY to Sandy Hook NJ out 20 nm offshore, including Long Island Sound, the Long Island Bays, and New York Harbor ANZ300-011015- 600 PM EDT Thu Jul 31 2025 .Synopsis for the Long Island and Connecticut coastal waters... A wave of low pressure travels along a slow moving frontal boundary through Friday morning. High pressure builds in behind the exiting system late Friday and remains in control through the first half of next week. $$ ANZ350-011015- Moriches Inlet NY to Montauk Point NY out 20 nm- 600 PM EDT Thu Jul 31 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH FRIDAY EVENING... .TONIGHT...E winds 15 to 20 kt with gusts up to 30 kt, diminishing to 10 to 15 kt with gusts up to 25 kt this evening, then becoming NE 15 to 20 kt with gusts up to 30 kt after midnight. Seas 2 to 4 ft, occasionally to 5 ft, building to 4 to 6 ft, occasionally to 8 ft after midnight. Wave Detail: E 3 ft at 4 seconds and S 2 ft at 4 seconds, becoming NE 4 ft at 5 seconds and SW 1 ft at 4 seconds. Chance of tstms early. Showers. Slight chance of tstms late this evening. Vsby 1 to 3 nm early. .FRI...NE winds 20 to 25 kt with gusts up to 30 kt. Seas 5 to 8 ft, occasionally to 10 ft. Wave Detail: NE 7 ft at 6 seconds and SE 1 ft at 9 seconds. Showers, mainly in the morning. .FRI NIGHT...NE winds 20 to 25 kt, diminishing to 15 to 20 kt after midnight. Seas 5 to 7 ft, occasionally to 9 ft. Wave Detail: E 6 ft at 7 seconds and SE 1 ft at 8 seconds. Slight chance of showers in the evening. .SAT...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft, occasionally to 6 ft. Wave Detail: E 4 ft at 7 seconds and SE 3 ft at 8 seconds. .SAT NIGHT...SE winds around 5 kt, becoming SW after midnight. Seas 2 to 3 ft. Wave Detail: E 3 ft at 8 seconds. .SUN...W winds around 5 kt, becoming SW in the afternoon. Seas 2 to 3 ft. Wave Detail: E 3 ft at 8 seconds. .SUN NIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft. .MON...SW winds 5 to 10 kt. Seas 2 to 3 ft. .MON NIGHT...S winds 5 to 10 kt. Seas around 3 ft. .TUE...SE winds 5 to 10 kt. Seas around 3 ft. .TUE NIGHT...E winds 5 to 10 kt. Seas around 3 ft. Winds and seas may be higher in and near tstms. $$ ANZ353-011015- Fire Island Inlet NY to Moriches Inlet NY out 20 nm- 600 PM EDT Thu Jul 31 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH FRIDAY EVENING... .TONIGHT...E winds 5 to 10 kt with gusts up to 20 kt, becoming NE 15 to 20 kt with gusts up to 30 kt. Seas 2 to 3 ft, building to 3 to 5 ft, occasionally to 6 ft after midnight. Wave Detail: E 2 ft at 3 seconds and S 2 ft at 4 seconds, becoming E 4 ft at 4 seconds and S 1 ft at 4 seconds. Chance of tstms early. Showers. Slight chance of tstms late this evening. Vsby 1 to 3 nm early. .FRI...NE winds 20 to 25 kt with gusts up to 30 kt. Seas 5 to 8 ft, occasionally to 10 ft. Wave Detail: NE 6 ft at 6 seconds and SW 1 ft at 5 seconds. Showers likely, mainly in the morning. .FRI NIGHT...NE winds 15 to 20 kt with gusts up to 25 kt. Seas 5 to 7 ft, occasionally to 9 ft. Wave Detail: E 6 ft at 7 seconds and SE 4 ft at 8 seconds. Slight chance of showers in the evening. .SAT...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 5 ft, occasionally to 6 ft. Wave Detail: E 5 ft at 7 seconds and SE 4 ft at 8 seconds. .SAT NIGHT...SE winds 5 to 10 kt, becoming SW after midnight. Seas around 3 ft. Wave Detail: E 3 ft at 7 seconds. .SUN...NW winds around 5 kt, becoming SW in the afternoon. Seas around 3 ft. Wave Detail: E 3 ft at 8 seconds. .SUN NIGHT...SW winds 5 to 10 kt. Seas around 3 ft. .MON...SW winds 5 to 10 kt. Seas 2 to 3 ft. .MON NIGHT...S winds 5 to 10 kt. Seas around 3 ft. .TUE...SE winds 5 to 10 kt. Seas around 3 ft. .TUE NIGHT...E winds 5 to 10 kt. Seas 3 to 4 ft, occasionally to 5 ft. Winds and seas may be higher in and near tstms. $$ ANZ355-011015- Sandy Hook NJ to Fire Island Inlet NY out 20 nm- 600 PM EDT Thu Jul 31 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH FRIDAY EVENING... .TONIGHT...E winds 5 to 10 kt with gusts up to 20 kt, becoming NE 10 to 15 kt with gusts up to 20 kt late this evening, then increasing to 15 to 20 kt with gusts up to 25 kt after midnight. Seas 2 to 4 ft, occasionally to 5 ft. Wave Detail: NE 3 ft at 4 seconds and S 2 ft at 4 seconds. Chance of tstms early. Showers. Slight chance of tstms late this evening. Vsby 1 to 3 nm early. .FRI...NE winds 20 to 25 kt with gusts up to 30 kt. Seas 4 to 6 ft, occasionally to 8 ft. Wave Detail: NE 5 ft at 5 seconds and S 1 ft at 5 seconds. Chance of showers, mainly in the morning. .FRI NIGHT...NE winds 15 to 20 kt, becoming N 10 to 15 kt after midnight. Seas 4 to 6 ft, occasionally to 8 ft. Wave Detail: E 5 ft at 7 seconds and SE 4 ft at 8 seconds. .SAT...N winds 10 to 15 kt with gusts up to 20 kt, becoming NE 5 to 10 kt in the afternoon. Seas 3 to 5 ft, occasionally to 6 ft. Wave Detail: E 4 ft at 7 seconds. .SAT NIGHT...SE winds 5 to 10 kt, becoming SW after midnight. Seas 2 to 3 ft. Wave Detail: E 3 ft at 7 seconds. .SUN...NW winds around 5 kt, becoming S in the afternoon. Seas 2 to 3 ft. Wave Detail: E 3 ft at 8 seconds. .SUN NIGHT...S winds 5 to 10 kt, becoming SW after midnight. Seas 2 to 3 ft. .MON...SW winds 5 to 10 kt. Seas 2 to 3 ft. .MON NIGHT...SW winds 5 to 10 kt. Seas 2 to 3 ft. .TUE...SE winds 5 to 10 kt. Seas 2 to 3 ft. .TUE NIGHT...SE winds 5 to 10 kt. Seas around 3 ft. Winds and seas may be higher in and near tstms. $$ ANZ332-011015- Long Island Sound East of the Mouth of the Connecticut River- 600 PM EDT Thu Jul 31 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH FRIDAY EVENING... .TONIGHT...NE winds 10 to 15 kt, increasing to 15 to 20 kt with gusts up to 25 kt after midnight. Seas 2 to 4 ft, occasionally to 5 ft. Wave Detail: NE 3 ft at 5 seconds. Chance of showers early. Chance of tstms early. Showers. Vsby 1 to 3 nm early. .FRI...NE winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft, occasionally to 5 ft. Wave Detail: NE 3 ft at 5 seconds. Showers, mainly in the morning with vsby 1 to 3 nm. .FRI NIGHT...NE winds 15 to 20 kt, becoming N 10 to 15 kt after midnight. Seas 2 to 4 ft, occasionally to 5 ft. Wave Detail: NE 3 ft at 5 seconds. .SAT...N winds 5 to 10 kt, becoming E in the afternoon. Seas around 2 ft. Wave Detail: NE 2 ft at 4 seconds. .SAT NIGHT...S winds around 5 kt, becoming SW around 5 kt after midnight. Seas around 2 ft in the evening, then 1 ft or less. Wave Detail: E 1 ft at 4 seconds and E 1 ft at 8 seconds. .SUN...W winds around 5 kt, becoming SW in the afternoon. Seas 1 ft or less. Wave Detail: E 1 ft at 8 seconds. .SUN NIGHT...SW winds 5 to 10 kt. Seas around 2 ft. .MON...SW winds 5 to 10 kt. Seas around 2 ft. .MON NIGHT...SW winds 5 to 10 kt. Seas around 2 ft. .TUE...S winds 5 to 10 kt. Seas around 2 ft. .TUE NIGHT...SE winds 5 to 10 kt. Seas around 2 ft. Winds and seas may be higher in and near tstms. $$ ANZ331-011015- Long Island Sound East of New Haven CT/Port Jefferson NY to the Mouth of the Connecticut River- 600 PM EDT Thu Jul 31 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH FRIDAY EVENING... .TONIGHT...E winds 10 to 15 kt, becoming NE 15 to 20 kt with gusts up to 25 kt late this evening and overnight. Seas 2 to 4 ft, occasionally to 5 ft. Wave Detail: NE 3 ft at 4 seconds. Chance of showers and tstms early, then slight chance of tstms early this evening. Showers. Vsby 1 to 3 nm early. .FRI...NE winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft, occasionally to 5 ft. Wave Detail: NE 3 ft at 4 seconds. Showers likely, mainly in the morning. .FRI NIGHT...NE winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: NE 2 ft at 4 seconds. .SAT...N winds 5 to 10 kt. Seas 1 ft or less. Wave Detail: NE 1 ft at 3 seconds. .SAT NIGHT...S winds around 5 kt, becoming SW around 5 kt after midnight. Seas 1 ft or less. .SUN...W winds around 5 kt, becoming SW around 5 kt in the afternoon. Seas 1 ft or less. .SUN NIGHT...SW winds 5 to 10 kt. Seas 1 ft or less. .MON...SW winds around 5 kt. Seas 1 ft or less. .MON NIGHT...SW winds 5 to 10 kt. Seas 1 ft or less. .TUE...SE winds around 5 kt. Seas 1 ft or less. .TUE NIGHT...SE winds 5 to 10 kt. Seas 1 ft or less. Winds and seas may be higher in and near tstms. $$ ANZ335-011015- Long Island Sound West of New Haven CT/Port Jefferson NY- 600 PM EDT Thu Jul 31 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH FRIDAY EVENING... .TONIGHT...E winds 15 to 20 kt, becoming NE 10 to 15 kt early this evening, then increasing to 15 to 20 kt late this evening and overnight. Gusts up to 25 kt. Seas 2 to 4 ft, occasionally to 5 ft. Wave Detail: NE 3 ft at 4 seconds. Chance of showers and tstms early, then slight chance of tstms early this evening. Showers. Vsby 1 to 3 nm early. .FRI...NE winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft, occasionally to 5 ft. Wave Detail: NE 3 ft at 4 seconds. Chance of showers, mainly in the morning. .FRI NIGHT...NE winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: NE 2 ft at 4 seconds. .SAT...N winds 5 to 10 kt. Seas 1 ft or less. Wave Detail: NE 1 ft at 4 seconds. .SAT NIGHT...S winds around 5 kt, becoming W around 5 kt after midnight. Seas 1 ft or less. Wave Detail: E 1 ft at 3 seconds. .SUN...NW winds around 5 kt, becoming S in the afternoon. Seas 1 ft or less. .SUN NIGHT...SW winds 5 to 10 kt. Seas 1 ft or less. .MON...SW winds around 5 kt. Seas 1 ft or less. .MON NIGHT...SW winds 5 to 10 kt. Seas 1 ft or less. .TUE...SE winds 5 to 10 kt. Seas 1 ft or less. .TUE NIGHT...SE winds 5 to 10 kt. Seas 1 ft or less. Winds and seas may be higher in and near tstms. $$ ANZ338-011015- New York Harbor- 600 PM EDT Thu Jul 31 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH FRIDAY EVENING... .TONIGHT...N winds around 10 kt, becoming NE 15 to 20 kt with gusts up to 25 kt. Waves 2 to 3 ft. Wave Detail: NE 2 ft at 3 seconds. Chance of tstms early. Showers early, then chance of showers late. Vsby 1 to 3 nm early. .FRI...NE winds 15 to 20 kt with gusts up to 25 kt. Waves 2 to 3 ft. Wave Detail: NE 2 ft at 3 seconds. Chance of showers, mainly in the morning. .FRI NIGHT...NE winds 10 to 15 kt. Waves 2 to 3 ft. Wave Detail: NE 2 ft at 2 seconds. .SAT...NE winds 5 to 10 kt. Waves around 2 ft. .SAT NIGHT...SE winds around 5 kt, becoming W after midnight. Waves 1 to 2 ft in the evening, then 1 ft or less. .SUN...NW winds around 5 kt, becoming S in the afternoon. Waves 1 ft or less. .SUN NIGHT...S winds 5 to 10 kt, becoming SW after midnight. Waves 1 to 2 ft. .MON...SW winds 5 to 10 kt. Waves 1 to 2 ft. .MON NIGHT...S winds 5 to 10 kt. Waves 1 to 2 ft. .TUE...SE winds 5 to 10 kt. Waves 1 to 2 ft. .TUE NIGHT...SE winds 5 to 10 kt. Waves around 2 ft. Winds and waves may be higher in and near tstms. $$ ANZ340-011015- Peconic and Gardiners Bays- 600 PM EDT Thu Jul 31 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH FRIDAY EVENING... .TONIGHT...NE winds 10 to 15 kt with gusts up to 25 kt, increasing to 15 to 20 kt with gusts up to 25 kt late. Waves 1 ft or less, then 2 to 3 ft. Showers and chance of tstms early, then showers late this evening and overnight. Vsby 1 to 3 nm early. .FRI...NE winds 15 to 20 kt with gusts up to 25 kt. Waves 2 to 3 ft. Showers, mainly in the morning. .FRI NIGHT...NE winds 10 to 15 kt. Waves 1 to 2 ft. .SAT...N winds 5 to 10 kt, becoming E in the afternoon. Waves 1 ft or less. .SAT NIGHT...S winds around 5 kt. Waves 1 ft or less. .SUN...W winds around 5 kt, becoming SW around 5 kt in the afternoon. Waves 1 ft or less. .SUN NIGHT...SW winds around 5 kt. Waves 1 ft or less. .MON...SW winds around 5 kt. Waves 1 ft or less. .MON NIGHT...SW winds around 5 kt. Waves 1 ft or less. .TUE...SE winds around 5 kt. Waves 1 ft or less. .TUE NIGHT...SE winds around 5 kt. Waves 1 ft or less. Winds and waves may be higher in and near tstms. $$ ANZ345-011015- South Shore Bays from Jones Inlet through Shinnecock Bay- 600 PM EDT Thu Jul 31 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH FRIDAY EVENING... .TONIGHT...NE winds 10 to 15 kt with gusts up to 25 kt, increasing to 15 to 20 kt with gusts up to 25 kt late. Waves 1 ft or less. Showers and chance of tstms early, then showers late this evening and overnight. Vsby 1 to 3 nm early. .FRI...NE winds 15 to 20 kt with gusts up to 25 kt. Waves 1 ft or less. Chance of showers, mainly in the morning. .FRI NIGHT...NE winds 10 to 15 kt. Gusts up to 25 kt in the evening. Waves 1 ft or less. .SAT...NE winds 5 to 10 kt. Waves 1 ft or less. .SAT NIGHT...SE winds around 5 kt, becoming SW around 5 kt after midnight. Waves 1 ft or less. .SUN...W winds around 5 kt, becoming S around 5 kt in the afternoon. Waves 1 ft or less. .SUN NIGHT...SW winds around 5 kt. Waves 1 ft or less. .MON...SW winds around 5 kt. Waves 1 ft or less. .MON NIGHT...S winds 5 to 10 kt. Waves 1 ft or less. .TUE...SE winds 5 to 10 kt. Waves 1 ft or less. .TUE NIGHT...SE winds 5 to 10 kt. Waves 1 ft or less. Winds and waves may be higher in and near tstms. $$