Coastal Waters Forecast
Issued by NWS Upton, NY
Issued by NWS Upton, NY
075 FZUS51 KOKX 180636 CWFOKX Coastal Waters Forecast National Weather Service New York NY 236 AM EDT Mon Aug 18 2025 Montauk Point NY to Sandy Hook NJ out 20 nm offshore, including Long Island Sound, the Long Island Bays, and New York Harbor ANZ300-181915- 236 AM EDT Mon Aug 18 2025 .Synopsis for the Long Island and Connecticut coastal waters... A cold front sags south through the area early this morning. High pressure builds in to the north through tonight and moves off the northern New England coast Tuesday. A weakening frontal system approaches from the west Wednesday. The frontal system and Hurricane Erin will pass well out into the Atlantic on Thursday. High pressure will return by late week. Please refer to National Hurricane Center forecasts for further information on Erin. $$ ANZ350-181915- Moriches Inlet NY to Montauk Point NY out 20 nm- 236 AM EDT Mon Aug 18 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH THURSDAY MORNING... .TODAY...NE winds 20 to 25 kt, diminishing to 15 to 20 kt this afternoon. Gusts to 30 kt. Seas 4 to 6 ft, occasionally to 8 ft. Wave Detail: E 6 ft at 7 seconds and SW 2 ft at 5 seconds. Slight chance of showers this morning. .TONIGHT...E winds around 15 kt with gusts up to 25 kt. Seas 4 to 6 ft, occasionally to 8 ft. Wave Detail: E 6 ft at 7 seconds and SE 3 ft at 14 seconds. .TUE...E winds 10 to 15 kt with gusts up to 20 kt. Seas 4 to 6 ft, occasionally to 8 ft. Wave Detail: E 4 ft at 7 seconds and SE 4 ft at 15 seconds. .TUE NIGHT...E winds around 10 kt. Seas 5 to 6 ft, occasionally to 8 ft. Wave Detail: SE 6 ft at 14 seconds and E 4 ft at 6 seconds. .WED...E winds 10 to 15 kt with gusts up to 20 kt. Seas 6 to 7 ft, occasionally to 9 ft. Wave Detail: SE 7 ft at 16 seconds and E 4 ft at 5 seconds. .WED NIGHT...E winds 15 to 20 kt with gusts up to 25 kt. Seas 7 to 9 ft, occasionally to 11 ft. Wave Detail: SE 9 ft at 17 seconds. .THU...NE winds 15 to 20 kt with gusts up to 25 kt. Seas 9 to 13 ft, occasionally to 17 ft. .THU NIGHT...NE winds 15 to 20 kt with gusts up to 25 kt. Seas 10 to 14 ft, occasionally to 18 ft. .FRI...NE winds 15 to 20 kt with gusts up to 25 kt. Seas 7 to 10 ft, occasionally to 13 ft. .FRI NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas 5 to 7 ft, occasionally to 9 ft. $$ ANZ353-181915- Fire Island Inlet NY to Moriches Inlet NY out 20 nm- 236 AM EDT Mon Aug 18 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH THURSDAY MORNING... .TODAY...NE winds 20 to 25 kt, becoming E 15 to 20 kt this afternoon. Gusts to 30 kt. Seas 4 to 6 ft, occasionally to 8 ft. Wave Detail: E 5 ft at 6 seconds and SW 2 ft at 5 seconds. Slight chance of showers this morning. .TONIGHT...E winds 15 to 20 kt with gusts up to 25 kt. Seas 5 to 6 ft, occasionally to 8 ft. Wave Detail: E 6 ft at 7 seconds and SE 3 ft at 13 seconds. .TUE...E winds 10 to 15 kt with gusts up to 20 kt. Seas 5 to 6 ft, occasionally to 8 ft. Wave Detail: E 5 ft at 7 seconds and SE 3 ft at 12 seconds. .TUE NIGHT...E winds 10 to 15 kt. Seas 5 to 6 ft, occasionally to 8 ft. Wave Detail: SE 5 ft at 15 seconds and E 4 ft at 6 seconds. .WED...E winds 10 to 15 kt with gusts up to 20 kt. Seas 5 to 7 ft, occasionally to 9 ft. Wave Detail: SE 6 ft at 16 seconds and E 4 ft at 6 seconds. .WED NIGHT...E winds 15 to 20 kt with gusts up to 25 kt. Seas 6 to 9 ft, occasionally to 11 ft. Wave Detail: SE 8 ft at 17 seconds and E 6 ft at 8 seconds. .THU...NE winds 15 to 20 kt with gusts up to 25 kt. Seas 9 to 13 ft, occasionally to 17 ft. .THU NIGHT...NE winds 15 to 20 kt with gusts up to 25 kt. Seas 9 to 13 ft, occasionally to 17 ft. .FRI...NE winds 15 to 20 kt with gusts up to 25 kt. Seas 7 to 10 ft, occasionally to 13 ft. .FRI NIGHT...S winds 10 to 15 kt. Seas 5 to 7 ft, occasionally to 9 ft. $$ ANZ355-181915- Sandy Hook NJ to Fire Island Inlet NY out 20 nm- 236 AM EDT Mon Aug 18 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH THURSDAY MORNING... .TODAY...NE winds 20 to 25 kt, becoming E 15 to 20 kt this afternoon. Gusts to 30 kt. Seas 3 to 5 ft, occasionally to 6 ft. Wave Detail: SE 5 ft at 6 seconds and SE 2 ft at 14 seconds. Slight chance of showers this morning. .TONIGHT...E winds around 15 kt with gusts up to 20 kt. Seas 4 to 6 ft, occasionally to 8 ft. Wave Detail: E 5 ft at 7 seconds and SE 2 ft at 14 seconds. .TUE...E winds 10 to 15 kt with gusts up to 20 kt. Seas 4 to 5 ft, occasionally to 6 ft. Wave Detail: E 5 ft at 7 seconds and SE 3 ft at 15 seconds. .TUE NIGHT...E winds 10 to 15 kt. Seas 4 to 5 ft, occasionally to 6 ft. Wave Detail: E 4 ft at 7 seconds and SE 4 ft at 16 seconds. .WED...E winds 10 to 15 kt with gusts up to 20 kt. Seas 4 to 6 ft, occasionally to 8 ft. Wave Detail: SE 5 ft at 16 seconds and E 4 ft at 6 seconds. .WED NIGHT...E winds 15 to 20 kt with gusts up to 25 kt. Seas 5 to 8 ft, occasionally to 10 ft. Wave Detail: SE 7 ft at 17 seconds. .THU...NE winds 15 to 20 kt with gusts up to 25 kt. Seas 8 to 11 ft, occasionally to 14 ft. .THU NIGHT...NE winds around 15 kt with gusts up to 20 kt. Seas 8 to 11 ft, occasionally to 14 ft. .FRI...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 6 to 9 ft, occasionally to 11 ft. .FRI NIGHT...S winds around 10 kt. Seas 5 to 7 ft, occasionally to 9 ft. $$ ANZ332-181915- Long Island Sound East of the Mouth of the Connecticut River- 236 AM EDT Mon Aug 18 2025 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 2 PM EDT THIS AFTERNOON... .TODAY...NE winds 15 to 20 kt with gusts to 30 kt, becoming E 10 to 15 kt this afternoon. Seas 2 to 4 ft, occasionally to 5 ft. Wave Detail: NE 3 ft at 4 seconds. Slight chance of showers this morning. .TONIGHT...E winds 10 to 15 kt with gusts up to 20 kt, becoming NE 5 to 10 kt after midnight. Seas 2 to 4 ft, occasionally to 5 ft. Wave Detail: E 3 ft at 5 seconds. .TUE...E winds 5 to 10 kt. Seas 2 to 4 ft, occasionally to 5 ft. Wave Detail: E 2 ft at 5 seconds. .TUE NIGHT...E winds 5 to 10 kt. Seas 2 to 4 ft, occasionally to 5 ft. Wave Detail: E 2 ft at 5 seconds and E 2 ft at 14 seconds. .WED...E winds 5 to 10 kt. Seas 2 to 4 ft, occasionally to 5 ft. Wave Detail: E 2 ft at 5 seconds and SE 2 ft at 13 seconds. .WED NIGHT...E winds 10 to 15 kt. Seas 3 to 5 ft, occasionally to 6 ft. Wave Detail: E 2 ft at 16 seconds. .THU...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 5 to 7 ft, occasionally to 9 ft. .THU NIGHT...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 6 to 9 ft, occasionally to 11 ft. .FRI...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 4 to 6 ft, occasionally to 8 ft. .FRI NIGHT...S winds 5 to 10 kt. Seas 2 to 4 ft, occasionally to 5 ft. $$ ANZ331-181915- Long Island Sound East of New Haven CT/Port Jefferson NY to the Mouth of the Connecticut River- 236 AM EDT Mon Aug 18 2025 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 2 PM EDT THIS AFTERNOON... .TODAY...NE winds 15 to 20 kt with gusts to 25 kt, diminishing to 10 to 15 kt late this morning and early afternoon, then becoming E late. Seas 2 to 3 ft. Wave Detail: NE 2 ft at 3 seconds. Slight chance of showers early this morning. .TONIGHT...E winds around 10 kt. Seas around 2 ft. Wave Detail: E 1 ft at 3 seconds. .TUE...E winds around 10 kt. Seas around 2 ft. Wave Detail: E 1 ft at 3 seconds. .TUE NIGHT...E winds 5 to 10 kt. Seas around 2 ft. Wave Detail: E 1 ft at 3 seconds. .WED...E winds 5 to 10 kt. Seas around 2 ft. Wave Detail: E 1 ft at 3 seconds. .WED NIGHT...E winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: E 2 ft at 3 seconds. .THU...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. .THU NIGHT...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 4 ft, occasionally to 5 ft. .FRI...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. .FRI NIGHT...S winds 5 to 10 kt. Seas around 2 ft. $$ ANZ335-181915- Long Island Sound West of New Haven CT/Port Jefferson NY- 236 AM EDT Mon Aug 18 2025 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 2 PM EDT THIS AFTERNOON... .TODAY...NE winds 15 to 20 kt with gusts to 25 kt, becoming E 10 to 15 kt this afternoon. Seas 2 to 3 ft. Wave Detail: NE 2 ft at 3 seconds. Slight chance of showers early this morning. .TONIGHT...E winds around 10 kt. Seas around 2 ft. Wave Detail: E 1 ft at 4 seconds. .TUE...E winds around 10 kt. Seas around 2 ft. Wave Detail: E 1 ft at 3 seconds. .TUE NIGHT...E winds 5 to 10 kt. Seas around 2 ft. Wave Detail: E 1 ft at 3 seconds. .WED...E winds 5 to 10 kt. Seas around 2 ft. Wave Detail: E 1 ft at 3 seconds. .WED NIGHT...E winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: E 2 ft at 3 seconds. .THU...NE winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. .THU NIGHT...NE winds 10 to 15 kt. Seas 2 to 3 ft. .FRI...NE winds 10 to 15 kt. Seas 2 to 3 ft. .FRI NIGHT...S winds 5 to 10 kt. Seas around 2 ft. $$ ANZ338-181915- New York Harbor- 236 AM EDT Mon Aug 18 2025 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 2 PM EDT THIS AFTERNOON... .TODAY...NE winds 15 to 20 kt with gusts to 25 kt, becoming E 10 to 15 kt this afternoon. Waves around 2 ft. Wave Detail: NE 2 ft at 3 seconds. Slight chance of showers this morning. .TONIGHT...E winds 10 to 15 kt with gusts up to 20 kt. Waves 2 to 3 ft. Wave Detail: E 2 ft at 3 seconds. .TUE...E winds 10 to 15 kt. Waves 2 to 3 ft. .TUE NIGHT...E winds around 10 kt. Waves around 2 ft. .WED...E winds 10 to 15 kt. Waves around 2 ft. .WED NIGHT...E winds 10 to 15 kt with gusts up to 20 kt. Waves around 2 ft. Wave Detail: E 2 ft at 3 seconds. .THU...NE winds 10 to 15 kt with gusts up to 20 kt. Waves 2 to 4 ft, occasionally to 5 ft. .THU NIGHT...NE winds 10 to 15 kt with gusts up to 20 kt. Waves 2 to 4 ft, occasionally to 5 ft. .FRI...NE winds 10 to 15 kt. Waves 2 to 4 ft, occasionally to 5 ft. .FRI NIGHT...S winds 5 to 10 kt. Waves 2 to 3 ft. $$ ANZ340-181915- Peconic and Gardiners Bays- 236 AM EDT Mon Aug 18 2025 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 2 PM EDT THIS AFTERNOON... .TODAY...NE winds 15 to 20 kt with gusts to 25 kt, becoming E 10 to 15 kt this afternoon. Waves 2 to 3 ft. Slight chance of showers this morning. .TONIGHT...E winds 10 to 15 kt. Waves 2 to 3 ft. .TUE...E winds 5 to 10 kt. Waves 1 to 2 ft. .TUE NIGHT...E winds around 10 kt. Waves around 2 ft. .WED...E winds around 10 kt. Waves 2 to 3 ft. .WED NIGHT...E winds 10 to 15 kt. Waves 2 to 3 ft. .THU...NE winds 10 to 15 kt with gusts up to 20 kt. Waves 2 to 4 ft. .THU NIGHT...NE winds 10 to 15 kt with gusts up to 20 kt. Waves 2 to 4 ft. .FRI...NE winds 10 to 15 kt with gusts up to 20 kt. Waves 2 to 4 ft. .FRI NIGHT...S winds 5 to 10 kt. Waves around 2 ft. $$ ANZ345-181915- South Shore Bays from Jones Inlet through Shinnecock Bay- 236 AM EDT Mon Aug 18 2025 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 2 PM EDT THIS AFTERNOON... .TODAY...NE winds 15 to 20 kt with gusts to 30 kt, becoming E 10 to 15 kt late. Waves 1 to 2 ft. Slight chance of showers this morning. .TONIGHT...E winds 10 to 15 kt. Waves 1 to 2 ft. .TUE...E winds 10 to 15 kt with gusts up to 20 kt. Waves 1 to 2 ft. .TUE NIGHT...E winds 5 to 10 kt. Waves 1 ft or less. .WED...E winds 10 to 15 kt. Waves 1 to 2 ft. .WED NIGHT...E winds 10 to 15 kt. Waves 1 ft or less. .THU...NE winds 10 to 15 kt with gusts up to 20 kt. Waves 1 to 2 ft. .THU NIGHT...NE winds 10 to 15 kt with gusts up to 20 kt. Waves 1 to 2 ft. .FRI...NE winds 10 to 15 kt with gusts up to 20 kt. Waves 1 to 2 ft. .FRI NIGHT...S winds 5 to 10 kt. Waves 1 ft or less. $$