Coastal Waters Forecast
Issued by NWS Upton, NY
Issued by NWS Upton, NY
847 FZUS51 KOKX 170553 CWFOKX Coastal Waters Forecast National Weather Service New York NY 153 AM EDT Fri Oct 17 2025 Montauk Point NY to Sandy Hook NJ out 20 nm offshore, including Long Island Sound, the Long Island Bays, and New York Harbor ANZ300-171815- 153 AM EDT Fri Oct 17 2025 .Synopsis for the Long Island and Connecticut coastal waters... High pressure will gradually build in from the west through Saturday. The high will then give way to an approaching frontal system that passes through the area Sunday night into Monday morning. Weak high pressure then briefly follows Monday afternoon into Tuesday. Another frontal system approaches and moves through towards the middle of next week. $$ ANZ350-171815- Moriches Inlet NY to Montauk Point NY out 20 nm- 153 AM EDT Fri Oct 17 2025 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 11 AM EDT THIS MORNING... .TODAY...N winds 20 to 25 kt, diminishing to 10 to 15 kt. Seas 4 to 6 ft, occasionally to 8 ft. Wave Detail: N 4 ft at 5 seconds and E 2 ft at 9 seconds. .TONIGHT...N winds 10 to 15 kt. Seas 3 to 5 ft, occasionally to 6 ft. Wave Detail: E 5 ft at 12 seconds and NE 2 ft at 5 seconds. .SAT...N winds 5 to 10 kt, becoming NW in the afternoon. Seas 3 to 5 ft, occasionally to 6 ft. Wave Detail: E 5 ft at 12 seconds. .SAT NIGHT...SW winds around 5 kt, becoming S after midnight. Seas 3 to 4 ft, occasionally to 5 ft. Wave Detail: E 4 ft at 11 seconds. .SUN...S winds 10 to 15 kt, increasing to 15 to 20 kt in the afternoon. Seas 3 to 4 ft, occasionally to 5 ft, building to 4 to 6 ft, occasionally to 8 ft in the afternoon. Wave Detail: E 4 ft at 11 seconds and S 2 ft at 3 seconds, becoming S 5 ft at 5 seconds and E 4 ft at 11 seconds. .SUN NIGHT...S winds 20 to 25 kt with gusts up to 30 kt. Seas 5 to 7 ft, occasionally to 9 ft, building to 7 to 9 ft, occasionally to 11 ft after midnight. Wave Detail: S 7 ft at 6 seconds and E 3 ft at 11 seconds, becoming S 8 ft at 7 seconds and E 3 ft at 11 seconds. Chance of showers in the evening, then showers after midnight. .MON...SW winds 20 to 25 kt with gusts up to 30 kt. Seas 7 to 9 ft, occasionally to 11 ft. Chance of showers. Vsby 1 to 3 nm. .MON NIGHT...W winds 20 to 25 kt. Seas 5 to 7 ft, occasionally to 9 ft. Chance of showers. .TUE...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 5 ft, occasionally to 6 ft. .TUE NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 5 to 6 ft, occasionally to 8 ft. Chance of showers. $$ ANZ353-171815- Fire Island Inlet NY to Moriches Inlet NY out 20 nm- 153 AM EDT Fri Oct 17 2025 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 11 AM EDT THIS MORNING... .TODAY...N winds 20 to 25 kt, diminishing to 15 to 20 kt late this morning and afternoon. Seas 4 to 6 ft, occasionally to 8 ft. Wave Detail: N 4 ft at 5 seconds and E 2 ft at 9 seconds. .TONIGHT...N winds 10 to 15 kt. Seas 2 to 4 ft, occasionally to 5 ft. Wave Detail: NE 3 ft at 7 seconds and E 3 ft at 10 seconds. .SAT...N winds 5 to 10 kt, becoming W in the afternoon. Seas 2 to 4 ft, occasionally to 5 ft. Wave Detail: E 4 ft at 12 seconds. .SAT NIGHT...SW winds 5 to 10 kt. Seas 3 to 4 ft, occasionally to 5 ft. Wave Detail: E 4 ft at 11 seconds. .SUN...S winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 5 ft, occasionally to 6 ft, building to 5 to 6 ft, occasionally to 8 ft in the afternoon. Wave Detail: E 4 ft at 11 seconds and S 3 ft at 4 seconds, becoming S 5 ft at 5 seconds and E 4 ft at 11 seconds. .SUN NIGHT...S winds 20 to 25 kt with gusts up to 30 kt. Seas 6 to 9 ft, occasionally to 11 ft. Wave Detail: S 8 ft at 7 seconds and E 3 ft at 11 seconds. Showers. .MON...SW winds 20 to 25 kt with gusts up to 30 kt. Seas 6 to 9 ft, occasionally to 11 ft. Chance of showers. .MON NIGHT...W winds 20 to 25 kt. Seas 5 to 7 ft, occasionally to 9 ft. .TUE...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 5 ft, occasionally to 6 ft. .TUE NIGHT...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 5 to 6 ft, occasionally to 8 ft. Chance of showers. $$ ANZ355-171815- Sandy Hook NJ to Fire Island Inlet NY out 20 nm- 153 AM EDT Fri Oct 17 2025 ...SMALL CRAFT ADVISORY IN EFFECT UNTIL 11 AM EDT THIS MORNING... .TODAY...N winds 15 to 20 kt with gusts up to 25 kt, diminishing to 10 to 15 kt with gusts up to 20 kt this afternoon. Seas 3 to 5 ft, occasionally to 6 ft. Wave Detail: N 4 ft at 5 seconds and E 2 ft at 9 seconds. .TONIGHT...N winds 10 to 15 kt. Seas 2 to 3 ft. Wave Detail: NW 2 ft at 3 seconds and NE 2 ft at 7 seconds. .SAT...N winds 5 to 10 kt, becoming W in the afternoon. Seas 2 to 4 ft, occasionally to 5 ft. Wave Detail: E 4 ft at 12 seconds and NW 1 ft at 2 seconds. .SAT NIGHT...S winds 5 to 10 kt. Seas 3 to 4 ft, occasionally to 5 ft. Wave Detail: E 4 ft at 12 seconds. .SUN...S winds 15 to 20 kt, increasing to 20 to 25 kt with gusts up to 30 kt in the afternoon. Seas 4 to 6 ft, occasionally to 8 ft. Wave Detail: S 5 ft at 5 seconds and E 4 ft at 11 seconds. .SUN NIGHT...S winds 20 to 25 kt with gusts up to 30 kt. Seas 6 to 8 ft, occasionally to 10 ft. Wave Detail: S 8 ft at 7 seconds and E 3 ft at 11 seconds. Showers. .MON...SW winds 20 to 25 kt with gusts up to 30 kt. Seas 5 to 8 ft, occasionally to 10 ft. Chance of showers. .MON NIGHT...W winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 6 ft, occasionally to 8 ft. .TUE...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 5 ft, occasionally to 6 ft. .TUE NIGHT...W winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 5 ft, occasionally to 6 ft. Chance of showers. $$ ANZ332-171815- Long Island Sound East of the Mouth of the Connecticut River- 153 AM EDT Fri Oct 17 2025 .TODAY...N winds 15 to 20 kt, diminishing to 10 to 15 kt late this morning and afternoon. Seas 2 to 3 ft. Wave Detail: N 2 ft at 3 seconds. .TONIGHT...N winds 5 to 10 kt. Seas around 2 ft. Wave Detail: N 1 ft at 3 seconds. .SAT...N winds 5 to 10 kt, becoming W in the afternoon. Seas around 2 ft. Wave Detail: E 2 ft at 12 seconds. .SAT NIGHT...SW winds 5 to 10 kt. Seas around 2 ft. Wave Detail: E 2 ft at 12 seconds. .SUN...S winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 3 ft. Wave Detail: S 2 ft at 3 seconds and E 2 ft at 12 seconds. .SUN NIGHT...S winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 3 ft. Wave Detail: SE 3 ft at 4 seconds and E 1 ft at 11 seconds. Chance of showers in the evening, then showers after midnight. .MON...S winds 15 to 20 kt with gusts up to 30 kt. Seas 2 to 3 ft. Showers likely. .MON NIGHT...W winds 15 to 20 kt. Seas 2 to 3 ft. Chance of showers. .TUE...SW winds 10 to 15 kt with gusts up to 25 kt. Seas around 2 ft. .TUE NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Chance of showers. $$ ANZ331-171815- Long Island Sound East of New Haven CT/Port Jefferson NY to the Mouth of the Connecticut River- 153 AM EDT Fri Oct 17 2025 .TODAY...N winds 15 to 20 kt, diminishing to 10 to 15 kt this afternoon. Seas 2 to 3 ft. Wave Detail: N 2 ft at 3 seconds. .TONIGHT...N winds 10 to 15 kt, diminishing to 5 to 10 kt after midnight. Seas 1 ft or less. Wave Detail: N 1 ft at 2 seconds. .SAT...N winds 5 to 10 kt, becoming W in the afternoon. Seas 1 ft or less. .SAT NIGHT...SW winds around 5 kt, becoming S after midnight. Seas 1 ft or less. .SUN...S winds 10 to 15 kt, increasing to 15 to 20 kt in the afternoon. Seas 1 ft or less, then around 2 ft in the afternoon. Wave Detail: S 1 ft at 2 seconds, becoming S 2 ft at 3 seconds. .SUN NIGHT...S winds 20 to 25 kt. Seas 2 to 3 ft. Wave Detail: S 3 ft at 3 seconds. Showers. .MON...SW winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 3 ft. Chance of showers. .MON NIGHT...W winds 15 to 20 kt. Seas 2 to 3 ft. Chance of showers. .TUE...SW winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. .TUE NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Chance of showers. $$ ANZ335-171815- Long Island Sound West of New Haven CT/Port Jefferson NY- 153 AM EDT Fri Oct 17 2025 .TODAY...N winds 15 to 20 kt, diminishing to 10 to 15 kt with gusts up to 20 kt this afternoon. Seas 2 to 3 ft. Wave Detail: NE 1 ft at 3 seconds. .TONIGHT...N winds 10 to 15 kt, diminishing to 5 to 10 kt after midnight. Seas 1 ft or less. Wave Detail: N 1 ft at 2 seconds. .SAT...N winds 5 to 10 kt, becoming SW in the afternoon. Seas 1 ft or less. .SAT NIGHT...S winds 5 to 10 kt. Seas 1 ft or less. .SUN...S winds 10 to 15 kt, increasing to 15 to 20 kt with gusts up to 25 kt in the afternoon. Seas 1 ft or less, then around 2 ft in the afternoon. Wave Detail: S 1 ft at 2 seconds, becoming S 2 ft at 3 seconds. .SUN NIGHT...S winds 20 to 25 kt. Seas 2 to 3 ft. Wave Detail: S 2 ft at 3 seconds. Showers. .MON...SW winds 20 to 25 kt. Seas 2 to 3 ft. Chance of showers. .MON NIGHT...W winds 15 to 20 kt. Seas 2 to 3 ft. .TUE...SW winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. .TUE NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Chance of showers. $$ ANZ338-171815- New York Harbor- 153 AM EDT Fri Oct 17 2025 .TODAY...N winds 10 to 15 kt. Waves around 2 ft. .TONIGHT...N winds 5 to 10 kt. Waves around 2 ft in the evening, then 1 ft or less. .SAT...N winds around 5 kt, becoming SW in the afternoon. Waves 1 ft or less. .SAT NIGHT...S winds 5 to 10 kt. Waves 1 to 2 ft. .SUN...S winds 10 to 15 kt with gusts up to 20 kt, increasing to 15 to 20 kt with gusts up to 30 kt in the afternoon. Waves 1 to 2 ft, building to 2 to 4 ft, occasionally to 5 ft in the afternoon. Slight chance of showers in the afternoon. .SUN NIGHT...S winds 20 to 25 kt. Waves 2 to 4 ft, occasionally to 5 ft. Wave Detail: S 2 ft at 2 seconds. Showers. .MON...SW winds 20 to 25 kt. Waves 2 to 3 ft. Chance of showers. .MON NIGHT...W winds 15 to 20 kt. Waves 2 to 3 ft. .TUE...SW winds 10 to 15 kt with gusts up to 20 kt. Waves around 2 ft. .TUE NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Waves around 2 ft. Chance of showers. $$ ANZ340-171815- Peconic and Gardiners Bays- 153 AM EDT Fri Oct 17 2025 .TODAY...N winds 15 to 20 kt, diminishing to 10 to 15 kt late this morning and afternoon. Waves around 2 ft. .TONIGHT...N winds 5 to 10 kt. Waves 1 ft or less. .SAT...N winds around 5 kt, becoming W around 5 kt in the afternoon. Waves 1 ft or less. .SAT NIGHT...SW winds around 5 kt. Waves 1 ft or less. .SUN...S winds 5 to 10 kt, increasing to 10 to 15 kt in the afternoon. Waves 1 ft or less, then 1 to 2 ft in the afternoon. .SUN NIGHT...S winds 15 to 20 kt with gusts up to 25 kt. Waves 1 to 2 ft. Chance of showers in the evening, then showers after midnight. .MON...SW winds 15 to 20 kt with gusts up to 25 kt. Waves around 2 ft. Chance of showers. .MON NIGHT...W winds 10 to 15 kt with gusts up to 20 kt. Waves around 2 ft. Chance of showers. .TUE...SW winds 10 to 15 kt with gusts up to 20 kt. Waves around 2 ft. .TUE NIGHT...SW winds 10 to 15 kt with gusts up to 20 kt. Waves around 2 ft. Chance of showers. $$ ANZ345-171815- South Shore Bays from Jones Inlet through Shinnecock Bay- 153 AM EDT Fri Oct 17 2025 .TODAY...N winds 15 to 20 kt, diminishing to 10 to 15 kt late this morning and afternoon. Waves 1 ft or less. .TONIGHT...N winds 10 to 15 kt, diminishing to 5 to 10 kt after midnight. Waves 1 ft or less. .SAT...N winds around 5 kt, becoming W in the afternoon. Waves 1 ft or less. .SAT NIGHT...SW winds 5 to 10 kt. Waves 1 ft or less. .SUN...S winds 10 to 15 kt, increasing to 15 to 20 kt in the afternoon. Waves 1 ft or less. .SUN NIGHT...S winds 20 to 25 kt with gusts up to 30 kt. Waves around 2 ft. Showers. .MON...SW winds 15 to 20 kt with gusts up to 30 kt. Waves around 2 ft. Chance of showers. .MON NIGHT...W winds 15 to 20 kt with gusts up to 25 kt. Waves around 2 ft. .TUE...SW winds 10 to 15 kt with gusts up to 25 kt. Waves around 2 ft. .TUE NIGHT...SW winds 10 to 15 kt with gusts up to 25 kt. Waves around 2 ft. Chance of showers. $$