Marine Weather Net

Fire Island Inlet NY to Moriches Inlet NY out 20 NM Marine Forecast


TONIGHT

NE
WINDS
15 - 20
KNOTS

WED

NW
WINDS
15 - 20
KNOTS

WED NIGHT

W
WINDS
10 - 15
KNOTS

THU

W
WINDS
15 - 20
KNOTS

The Marine Weather Forecast In Detail:
ANZ353 Forecast Issued: 532 PM EST Tue Dec 02 2025

SMALL CRAFT ADVISORY IN EFFECT THROUGH WEDNESDAY AFTERNOON
Tonight...Ne Winds 15 To 20 Kt, Becoming Nw 20 To 25 Kt Late This Evening And Overnight. Gusts Up To 30 Kt. Seas 3 To 5 Ft, Occasionally To 6 Ft. Wave Detail: Nw 4 Ft At 4 Seconds And Se 4 Ft At 5 Seconds. Rain Early.
Wed...Nw Winds 15 To 20 Kt, Diminishing To Around 10 Kt In The Afternoon. Seas 4 To 6 Ft, Occasionally To 8 Ft. Wave Detail: Se 5 Ft At 9 Seconds And Nw 4 Ft At 4 Seconds.
Wed Night...W Winds 10 To 15 Kt, Increasing To 15 To 20 Kt After Midnight. Seas 4 To 5 Ft, Occasionally To 6 Ft. Wave Detail: W 4 Ft At 4 Seconds And Se 4 Ft At 9 Seconds.
Thu...W Winds 15 To 20 Kt, Increasing To 20 To 25 Kt In The Afternoon. Seas 4 To 6 Ft, Occasionally To 8 Ft. Wave Detail: W 5 Ft At 5 Seconds And Se 3 Ft At 9 Seconds.
Thu Night...Nw Winds 20 To 25 Kt, Becoming N 15 To 20 Kt After Midnight. Seas 4 To 6 Ft, Occasionally To 8 Ft. Wave Detail: Nw 5 Ft At 4 Seconds And Se 2 Ft At 10 Seconds.
Fri...Ne Winds 5 To 10 Kt, Becoming Sw In The Afternoon. Seas 2 To 3 Ft. Wave Detail: Ne 2 Ft At 3 Seconds And Sw 2 Ft At 3 Seconds.
Fri Night...Sw Winds Around 10 Kt, Becoming Nw After Midnight. Seas 2 To 3 Ft. Chance Of Rain. Vsby 1 To 3 Nm.
Sat...Nw Winds 10 To 15 Kt. Seas 2 To 3 Ft. Chance Of Rain.
Sat Night...Nw Winds 10 To 15 Kt. Seas 3 To 4 Ft, Occasionally To 5 Ft.
Sun...Nw Winds 10 To 15 Kt With Gusts Up To 20 Kt. Seas 3 To 4 Ft, Occasionally To 5 Ft.
Sun Night...N Winds Around 15 Kt With Gusts Up To 25 Kt. Seas 3 To 4 Ft, Occasionally To 5 Ft.
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Area Forecast Discussion
National Weather Service New York NY
1231am EST Wednesday Dec 3 2025

Synopsis
A coastal low pressure system continues to track northeast of the region overnight, and into the Canadian Maritimes by Wednesday. High pressure then returns for Wednesday and Thursday, with a cold frontal passage Thursday afternoon. Low pressure will then pass to the south and east Friday night into Saturday, with weak high pressure returning Saturday night into Sunday, followed by another cold front Sunday night.

Near Term - Through Today
Back edge of light precipitation continues to push east and should be east of the region by 08Z Wednesday. Precip type is all rain. Temperatures fall below freezing across the area late evening into the overnight, except maybe some sections of the city, so some refreezing of standing water will be possible, mainly across the interior. Winds will increase overnight too as the pressure gradient tightens over the area. NW winds 15-25 gusting up to 35 mph anticipated.

Short Term - Tonight Through Thursday Night
Key Points:

* Dry conditions for the period.

* High temperatures in the upper 30s and lower 40s, which is about 10 degrees below normal.

For Wednesday, high pressure over the OH Valley moves slowly east, with the local area caught between it and the departing coastal system. The pressure gradient looks to relax by midday Wed, so any lingering gusts should subside. Thursday looks similar as the high remains to our southwest and a cold front approaches from the northwest. It looks to pass through the area Thursday afternoon dry and with little fanfare, other than some increased cloudiness.

Long Term - Friday Through Tuesday
Key Points:

* Below normal temperatures expected, running as much as 10-15 degrees below normal Friday and again Sunday night/Monday.

* Low pressure passing to the south may give a glancing blow late Friday night into Saturday.

Very cold on Friday as a 1030 mb high (supported via strong mid level confluence behind the departing upper trough over eastern Canada) slides across, with highs from the upper 20s well inland to mid 30s metro/coastal sections. The high will retreat Fri night, with a southern stream low passing to the south in progressive quasi- zonal flow aloft. Polar jet may be modeled too strongly and ridging off the SE coast too weakly, so despite suppressed 00Z GFS (Global Forecast System) solution think the sys will at least give a glancing blow late Fri night into early Sat afternoon, with 30 PoP for all but the lower Hudson Valley. Thermal profiles supportive of light snow late Fri night/early Sat morning, then a transition to a light rain/snow mix for interior SE CT and all rain across eastern Long Island and coastal SE CT for late morning/early afternoon.

Cold frontal passage Sunday night as a closed low swings across ern Canada will usher in yet another very cold air mass for early next week, with lows in the teens/20s and highs in the upper 20s/lower 30s for Monday. This shot of cold air looks to be longer lasting than the one for Thu night/Fri of this week.

Marine
SCA (Small Craft Advisory) remains in effect on all waters through Wedam in association with the coastal low pressure system. Gusts to 30 kt are likely, occasionally to 35 kt, with seas 5-6 ft on the ocean and 1-3 ft elsewhere.

Winds and seas diminish through Wednesday with seas falling below advisory thresholds by the end of the day. Winds and seas then begin to increase late Wednesday night into Thursday morning ahead of a cold front that passes through in the afternoon and brings marginal gales on the ocean waters. SCA (Small Craft Advisory) conds otherwise likely on all waters late Wednesday night into Thursday morning and lasting into Thursday night.

Any lingering 5-ft seas on the outer coastal ocean waters out east early Fri morning should subside quickly as strong high pressure builds from the west. No hazards anticipated thereafter through Sunday afternoon due to a weak pressure gradient and lack of appreciable swell, with seas no higher than 2-3 ft.

Hydrology
No hydrologic impacts expected through the forecast period.

NOAA New York NY Office: Watches - Warnings - Advisories
CT...None. NY...None. NJ...None.

Marine
Small Craft Advisory until 6am EST early this morning for ANZ331-332-335-338-340-345. Small Craft Advisory until 4pm EST this afternoon for ANZ350- 353. Small Craft Advisory until 1pm EST this afternoon for ANZ355.