Coastal Waters Forecast
Issued by NWS Upton, NY
Issued by NWS Upton, NY
713 FZUS51 KOKX 200715 CWFOKX Coastal Waters Forecast National Weather Service New York NY 315 AM EDT Wed Aug 20 2025 Montauk Point NY to Sandy Hook NJ out 20 nm offshore, including Long Island Sound, the Long Island Bays, and New York Harbor ANZ300-202330- 315 AM EDT Wed Aug 20 2025 .Synopsis for the Long Island and Connecticut coastal waters... A frontal system impacts the area today into tonight. Hurricane Erin will pass well to the southeast from Thursday into Friday, bringing indirect but significant impacts along the shoreline. High pressure will return by late week, then a cold front will approach from the west from Sunday into Monday. Please refer to NHC forecasts for further information on Hurricane Erin. $$ ANZ350-202330- Moriches Inlet NY to Montauk Point NY out 20 nm- 315 AM EDT Wed Aug 20 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT... ...GALE WARNING IN EFFECT FROM THURSDAY MORNING THROUGH FRIDAY AFTERNOON... .TODAY...E winds 10 to 15 kt, increasing to 15 to 20 kt late. Seas 5 to 7 ft, occasionally to 9 ft. Wave Detail: SE 6 ft at 14 seconds and E 4 ft at 5 seconds. Rough conditions around inlets. Chance of showers this morning, then showers likely with slight chance of tstms this afternoon with vsby 1 to 3 nm. .TONIGHT...E winds 15 to 20 kt, increasing to 20 to 25 kt after midnight. Seas 7 to 8 ft, occasionally to 10 ft, building to 8 to 10 ft, occasionally to 13 ft after midnight. Wave Detail: E 6 ft at 6 seconds and S 5 ft at 15 seconds, becoming E 8 ft at 7 seconds and S 6 ft at 17 seconds. Rough conditions around inlets. Showers and slight chance of tstms in the evening, then showers likely after midnight. Vsby 1 to 3 nm. .THU...NE winds 25 to 30 kt with gusts up to 40 kt. Seas 9 to 13 ft, occasionally to 17 ft, building to 11 to 15 ft, occasionally to 19 ft in the afternoon. Wave Detail: E 10 ft at 7 seconds and S 7 ft at 16 seconds, becoming E 11 ft at 8 seconds and S 10 ft at 17 seconds. Rough conditions around inlets. Showers likely, mainly in the morning. .THU NIGHT...NE winds 25 to 35 kt, becoming 30 to 35 kt after midnight. Seas 13 to 18 ft, occasionally to 23 ft. Wave Detail: E 12 ft at 8 seconds and S 12 ft at 17 seconds. Rough conditions around inlets. Slight chance of showers in the evening. .FRI...N winds 25 to 30 kt, diminishing to 20 to 25 kt in the afternoon. Seas 12 to 16 ft, occasionally to 20 ft, subsiding to 9 to 13 ft, occasionally to 17 ft in the afternoon. Wave Detail: E 12 ft at 9 seconds and SE 12 ft at 17 seconds, becoming E 12 ft at 13 seconds. Rough conditions around inlets. .FRI NIGHT...N winds 10 to 15 kt with gusts up to 25 kt, becoming NW after midnight. Seas 7 to 10 ft, occasionally to 13 ft, subsiding to 6 to 8 ft, occasionally to 10 ft after midnight. Wave Detail: E 9 ft at 12 seconds, becoming E 8 ft at 12 seconds. .SAT...W winds around 10 kt. Seas 5 to 7 ft, occasionally to 9 ft. .SAT NIGHT...S winds around 10 kt. Seas 4 to 5 ft, occasionally to 6 ft. .SUN...S winds around 10 kt with gusts up to 20 kt. Seas around 4 ft, occasionally to 5 ft. .SUN NIGHT...S winds around 10 kt. Seas 4 to 5 ft, occasionally to 6 ft. Chance of showers. Winds and seas may be higher in and near tstms. $$ ANZ353-202330- Fire Island Inlet NY to Moriches Inlet NY out 20 nm- 315 AM EDT Wed Aug 20 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT... ...GALE WARNING IN EFFECT FROM THURSDAY MORNING THROUGH LATE THURSDAY NIGHT... .TODAY...E winds around 15 kt with gusts up to 25 kt. Seas 5 to 7 ft, occasionally to 9 ft. Wave Detail: E 5 ft at 5 seconds and SE 5 ft at 15 seconds. Rough conditions around inlets. Chance of showers this morning. Showers likely this afternoon. Slight chance of tstms late. Vsby 1 to 3 nm this afternoon. .TONIGHT...E winds 15 to 20 kt, increasing to 20 to 25 kt after midnight. Seas 7 to 8 ft, occasionally to 10 ft, building to 8 to 11 ft, occasionally to 14 ft after midnight. Wave Detail: E 6 ft at 5 seconds and SE 5 ft at 17 seconds, becoming E 8 ft at 6 seconds and S 7 ft at 17 seconds. Rough conditions around inlets. Showers and slight chance of tstms in the evening, then showers likely after midnight. Vsby 1 to 3 nm. .THU...NE winds 25 to 30 kt with gusts up to 40 kt. Seas 10 to 14 ft, occasionally to 18 ft, building to 12 to 16 ft, occasionally to 20 ft in the afternoon. Wave Detail: E 11 ft at 7 seconds and S 8 ft at 16 seconds, becoming E 11 ft at 8 seconds and S 11 ft at 17 seconds. Rough conditions around inlets. Showers likely, mainly in the morning. .THU NIGHT...NE winds 25 to 30 kt with gusts up to 40 kt. Seas 13 to 17 ft, occasionally to 22 ft. Wave Detail: SE 14 ft at 17 seconds and E 12 ft at 9 seconds. Rough conditions around inlets. Slight chance of showers in the evening. .FRI...N winds 25 to 30 kt, diminishing to 20 to 25 kt in the afternoon. Seas 11 to 15 ft, occasionally to 19 ft, subsiding to 9 to 12 ft, occasionally to 15 ft in the afternoon. Wave Detail: E 14 ft at 12 seconds, becoming E 12 ft at 12 seconds. Rough conditions around inlets. .FRI NIGHT...N winds 10 to 15 kt with gusts up to 20 kt, becoming W after midnight. Seas 6 to 9 ft, occasionally to 11 ft. Wave Detail: E 9 ft at 12 seconds. .SAT...SW winds around 10 kt. Seas 5 to 7 ft, occasionally to 9 ft. .SAT NIGHT...S winds around 10 kt. Seas 4 to 5 ft, occasionally to 6 ft. .SUN...S winds around 10 kt with gusts up to 20 kt. Seas 4 to 5 ft, occasionally to 6 ft. .SUN NIGHT...S winds 10 to 15 kt. Seas around 4 ft, occasionally to 5 ft. Chance of showers. Winds and seas may be higher in and near tstms. $$ ANZ355-202330- Sandy Hook NJ to Fire Island Inlet NY out 20 nm- 315 AM EDT Wed Aug 20 2025 ...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT... ...GALE WARNING IN EFFECT FROM THURSDAY MORNING THROUGH LATE THURSDAY NIGHT... .TODAY...E winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 6 ft, occasionally to 8 ft. Wave Detail: E 4 ft at 6 seconds and SE 4 ft at 14 seconds. Rough conditions around inlets. Chance of showers this morning, then showers likely this afternoon. Slight chance of tstms late. Vsby 1 to 3 nm this afternoon. .TONIGHT...E winds 15 to 20 kt, increasing to 20 to 25 kt after midnight. Seas 5 to 7 ft, occasionally to 9 ft, building to 6 to 9 ft, occasionally to 11 ft after midnight. Wave Detail: E 5 ft at 5 seconds and SE 5 ft at 16 seconds, becoming E 6 ft at 6 seconds and SE 6 ft at 17 seconds. Rough conditions around inlets. Showers likely with slight chance of tstms in the evening, then showers likely after midnight. Vsby 1 to 3 nm. .THU...NE winds 25 to 30 kt. Seas 8 to 11 ft, occasionally to 14 ft, building to 9 to 13 ft, occasionally to 17 ft in the afternoon. Wave Detail: E 9 ft at 7 seconds and S 6 ft at 16 seconds, becoming E 10 ft at 8 seconds and S 9 ft at 17 seconds. Rough conditions around inlets. Chance of showers, mainly in the morning. .THU NIGHT...NE winds 25 to 30 kt. Seas 10 to 14 ft, occasionally to 18 ft. Wave Detail: SE 12 ft at 17 seconds and E 10 ft at 9 seconds. Rough conditions around inlets. Slight chance of showers in the evening. .FRI...N winds 20 to 25 kt, diminishing to 15 to 20 kt in the afternoon. Seas 9 to 13 ft, occasionally to 17 ft, subsiding to 8 to 11 ft, occasionally to 14 ft in the afternoon. Wave Detail: E 12 ft at 12 seconds, becoming E 10 ft at 12 seconds. Rough conditions around inlets. .FRI NIGHT...E winds around 10 kt, becoming W after midnight. Seas 6 to 9 ft, occasionally to 11 ft, subsiding to 5 to 7 ft, occasionally to 9 ft after midnight. Wave Detail: SE 9 ft at 12 seconds, becoming E 7 ft at 12 seconds. .SAT...SW winds 5 to 10 kt. Seas 5 to 7 ft, occasionally to 9 ft. .SAT NIGHT...S winds 10 to 15 kt. Seas 4 to 5 ft, occasionally to 6 ft. .SUN...S winds 10 to 15 kt with gusts up to 20 kt. Seas 4 to 5 ft, occasionally to 6 ft. Chance of showers. .SUN NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 4 ft, occasionally to 5 ft. Showers likely. Winds and seas may be higher in and near tstms. $$ ANZ332-202330- Long Island Sound East of the Mouth of the Connecticut River- 315 AM EDT Wed Aug 20 2025 ...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TONIGHT THROUGH FRIDAY AFTERNOON... .TODAY...E winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft, occasionally to 5 ft. Wave Detail: E 3 ft at 4 seconds and E 2 ft at 14 seconds. Chance of showers late this morning. Showers this afternoon. Slight chance of tstms late. Vsby 1 to 3 nm this afternoon. .TONIGHT...E winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 6 ft, occasionally to 8 ft. Wave Detail: E 5 ft at 6 seconds and E 2 ft at 14 seconds. Showers and slight chance of tstms in the evening, then showers likely after midnight. Vsby 1 to 3 nm. .THU...NE winds 20 to 25 kt with gusts up to 30 kt. Seas 4 to 6 ft, occasionally to 8 ft. Wave Detail: E 6 ft at 7 seconds and E 2 ft at 16 seconds. Chance of showers, mainly in the morning. .THU NIGHT...NE winds 20 to 25 kt with gusts up to 30 kt. Seas 5 to 8 ft, occasionally to 10 ft. Wave Detail: E 7 ft at 7 seconds and E 5 ft at 18 seconds. .FRI...N winds 20 to 25 kt, diminishing to 15 to 20 kt in the afternoon. Seas 5 to 8 ft, occasionally to 10 ft, subsiding to 4 to 6 ft, occasionally to 8 ft in the afternoon. Wave Detail: NE 6 ft at 6 seconds and E 5 ft at 17 seconds, becoming NE 5 ft at 6 seconds and E 4 ft at 14 seconds. .FRI NIGHT...N winds 10 to 15 kt with gusts up to 20 kt, becoming W 5 to 10 kt after midnight. Seas 3 to 5 ft, occasionally to 6 ft. Wave Detail: E 3 ft at 5 seconds and E 3 ft at 12 seconds. .SAT...W winds 5 to 10 kt. Seas 2 to 4 ft, occasionally to 5 ft. .SAT NIGHT...S winds 5 to 10 kt. Seas 2 to 3 ft. .SUN...S winds 5 to 10 kt with gusts up to 20 kt. Seas 2 to 3 ft. .SUN NIGHT...S winds 5 to 10 kt. Seas 2 to 3 ft. Chance of showers. Winds and seas may be higher in and near tstms. $$ ANZ331-202330- Long Island Sound East of New Haven CT/Port Jefferson NY to the Mouth of the Connecticut River- 315 AM EDT Wed Aug 20 2025 ...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TONIGHT THROUGH FRIDAY AFTERNOON... .TODAY...E winds 10 to 15 kt with gusts up to 25 kt. Seas around 2 ft. Wave Detail: E 2 ft at 3 seconds. Chance of showers late this morning. Showers this afternoon. Slight chance of tstms late. Vsby 1 to 3 nm this afternoon. .TONIGHT...E winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft, occasionally to 5 ft. Wave Detail: E 3 ft at 4 seconds. Showers and slight chance of tstms in the evening, then showers likely after midnight. Vsby 1 to 3 nm. .THU...NE winds 20 to 25 kt with gusts up to 30 kt. Seas 2 to 4 ft, occasionally to 5 ft. Wave Detail: E 4 ft at 4 seconds. Chance of showers, mainly in the morning. .THU NIGHT...NE winds 20 to 25 kt with gusts up to 30 kt. Seas 3 to 5 ft, occasionally to 6 ft. Wave Detail: NE 4 ft at 5 seconds. .FRI...N winds 20 to 25 kt, diminishing to 15 to 20 kt in the afternoon. Seas 2 to 4 ft, occasionally to 5 ft. Wave Detail: NE 4 ft at 4 seconds. .FRI NIGHT...N winds 5 to 10 kt, becoming W after midnight. Seas around 2 ft in the evening, then 1 ft or less. Wave Detail: NE 2 ft at 4 seconds, becoming W 1 ft at 4 seconds. .SAT...SW winds 5 to 10 kt. Seas 1 ft or less. .SAT NIGHT...S winds 5 to 10 kt. Seas 1 ft or less. .SUN...S winds 5 to 10 kt with gusts up to 20 kt. Seas 1 ft or less. .SUN NIGHT...S winds 5 to 10 kt. Seas 1 ft or less. Chance of showers. Winds and seas may be higher in and near tstms. $$ ANZ335-202330- Long Island Sound West of New Haven CT/Port Jefferson NY- 315 AM EDT Wed Aug 20 2025 ...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TONIGHT THROUGH LATE THURSDAY NIGHT... .TODAY...E winds 10 to 15 kt. Seas around 2 ft. Wave Detail: E 2 ft at 3 seconds. Chance of showers this morning, then showers likely with slight chance of tstms this afternoon with vsby 1 to 3 nm. .TONIGHT...NE winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft, occasionally to 5 ft. Wave Detail: E 4 ft at 5 seconds. Showers and slight chance of tstms in the evening, then showers likely after midnight. Vsby 1 to 3 nm. .THU...NE winds 20 to 25 kt, diminishing to 15 to 20 kt in the afternoon. Seas 2 to 4 ft, occasionally to 5 ft. Wave Detail: E 4 ft at 5 seconds. Chance of showers in the morning. .THU NIGHT...NE winds 20 to 25 kt with gusts up to 30 kt. Seas 2 to 4 ft, occasionally to 5 ft. Wave Detail: NE 4 ft at 5 seconds. .FRI...N winds 15 to 20 kt, diminishing to 10 to 15 kt in the afternoon. Seas 2 to 4 ft, occasionally to 5 ft. Wave Detail: NE 3 ft at 5 seconds. .FRI NIGHT...N winds 5 to 10 kt, becoming W after midnight. Seas around 2 ft in the evening, then 1 ft or less. Wave Detail: NE 2 ft at 4 seconds, becoming SW 1 ft at 4 seconds. .SAT...SW winds 5 to 10 kt. Seas 1 ft or less. .SAT NIGHT...S winds 5 to 10 kt. Seas 1 ft or less. .SUN...S winds 5 to 10 kt. Seas 1 ft or less. Chance of showers. .SUN NIGHT...S winds 5 to 10 kt. Seas 1 ft or less. Showers likely. Winds and seas may be higher in and near tstms. $$ ANZ338-202330- New York Harbor- 315 AM EDT Wed Aug 20 2025 ...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TONIGHT THROUGH LATE THURSDAY NIGHT... .TODAY...E winds 10 to 15 kt, increasing to 15 to 20 kt late. Waves 2 to 3 ft. Wave Detail: E 2 ft at 3 seconds. Chance of showers this morning, then showers likely this afternoon. Slight chance of tstms late. Vsby 1 to 3 nm this afternoon. .TONIGHT...E winds 15 to 20 kt with gusts up to 25 kt. Waves 2 to 3 ft. Wave Detail: E 3 ft at 3 seconds. Showers likely with slight chance of tstms in the evening, then chance of showers after midnight. Vsby 1 to 3 nm. .THU...NE winds 20 to 25 kt with gusts up to 30 kt. Waves 2 to 4 ft, occasionally to 5 ft. Wave Detail: NE 3 ft at 4 seconds. Chance of showers in the morning. .THU NIGHT...NE winds 15 to 20 kt, becoming N 20 to 25 kt after midnight. Waves 3 to 5 ft, occasionally to 6 ft. Wave Detail: NE 4 ft at 4 seconds. .FRI...N winds 15 to 20 kt, becoming NE 10 to 15 kt in the afternoon. Waves 2 to 4 ft, occasionally to 5 ft. Wave Detail: NE 3 ft at 4 seconds. .FRI NIGHT...S winds 5 to 10 kt, becoming W after midnight. Waves 2 to 4 ft, occasionally to 5 ft. Wave Detail: E 2 ft at 4 seconds. .SAT...SW winds 5 to 10 kt. Waves 2 to 4 ft, occasionally to 5 ft. .SAT NIGHT...S winds 10 to 15 kt. Waves 2 to 3 ft. .SUN...S winds 10 to 15 kt with gusts up to 20 kt. Waves around 2 ft. Chance of showers. .SUN NIGHT...S winds 10 to 15 kt with gusts up to 20 kt. Waves around 2 ft. Showers likely. Winds and waves may be higher in and near tstms. $$ ANZ340-202330- Peconic and Gardiners Bays- 315 AM EDT Wed Aug 20 2025 ...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TONIGHT THROUGH FRIDAY AFTERNOON... .TODAY...E winds 10 to 15 kt. Gusts up to 25 kt late this morning and afternoon. Waves 1 to 2 ft. Chance of showers late this morning. Showers likely this afternoon. Slight chance of tstms late. Vsby 1 to 3 nm this afternoon. .TONIGHT...E winds 15 to 20 kt with gusts up to 25 kt. Waves 2 to 3 ft. Showers and slight chance of tstms in the evening, then showers likely after midnight. Vsby 1 to 3 nm. .THU...NE winds 15 to 20 kt with gusts up to 30 kt. Waves 2 to 4 ft. Chance of showers, mainly in the morning. .THU NIGHT...NE winds 20 to 25 kt with gusts up to 30 kt. Waves 2 to 4 ft. .FRI...N winds 15 to 20 kt with gusts up to 30 kt. Waves 2 to 4 ft. .FRI NIGHT...N winds 5 to 10 kt, becoming W after midnight. Waves 1 to 2 ft. .SAT...W winds 5 to 10 kt. Waves 1 to 2 ft. .SAT NIGHT...S winds 5 to 10 kt. Waves 1 ft or less. .SUN...S winds 5 to 10 kt with gusts up to 20 kt. Waves 1 ft or less. .SUN 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. $$ ANZ345-202330- South Shore Bays from Jones Inlet through Shinnecock Bay- 315 AM EDT Wed Aug 20 2025 ...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TONIGHT THROUGH FRIDAY AFTERNOON... .TODAY...E winds 10 to 15 kt with gusts up to 25 kt. Waves 1 ft or less. Rough conditions around inlets. Chance of showers this morning, then showers likely with slight chance of tstms this afternoon with vsby 1 to 3 nm. .TONIGHT...E winds 15 to 20 kt with gusts up to 30 kt. Waves 1 ft or less, then around 2 ft after midnight. Rough conditions around inlets. Showers and slight chance of tstms in the evening, then showers likely after midnight. Vsby 1 to 3 nm. .THU...NE winds 20 to 25 kt with gusts up to 35 kt. Waves around 2 ft. Rough conditions around inlets. Chance of showers, mainly in the morning. .THU NIGHT...NE winds 20 to 25 kt with gusts up to 35 kt. Waves around 2 ft. Rough conditions around inlets. .FRI...N winds 20 to 25 kt, diminishing to 15 to 20 kt in the afternoon. Waves around 2 ft in the morning, then 1 ft or less. Rough conditions around inlets. .FRI NIGHT...N winds 5 to 10 kt, becoming W after midnight. Waves 1 ft or less. .SAT...SW winds 5 to 10 kt. Waves 1 ft or less. .SAT NIGHT...S winds 5 to 10 kt. Waves 1 ft or less. .SUN...S winds 10 to 15 kt with gusts up to 20 kt. Waves 1 ft or less. .SUN NIGHT...S winds 5 to 10 kt with gusts up to 20 kt. Waves 1 ft or less. Chance of showers. Winds and waves may be higher in and near tstms. $$