Marine Weather Net

Sandy Hook NJ to Fire Island Inlet NY out 20 NM Marine Forecast


TODAY

W
WINDS
15 - 20
KNOTS

TONIGHT

W
WINDS
20 - 25
KNOTS

TUE

W
WINDS
20 - 25
KNOTS

TUE NIGHT

W
WINDS
15 - 20
KNOTS

The Marine Weather Forecast In Detail:
ANZ355 Forecast Issued: 209 AM EST Mon Jan 19 2026

SMALL CRAFT ADVISORY IN EFFECT FROM 6 AM EST THIS MORNING THROUGH TUESDAY AFTERNOON
Today...W Winds 15 To 20 Kt, Increasing To 20 To 25 Kt Late. Seas 4 To 6 Ft, Occasionally To 8 Ft. Wave Detail: W 3 Ft At 4 Seconds And Se 3 Ft At 8 Seconds. Chance Of Light Freezing Spray This Morning.
Tonight...W Winds 20 To 25 Kt With Gusts Up To 30 Kt. Seas 5 To 7 Ft, Occasionally To 9 Ft. Wave Detail: W 4 Ft At 3 Seconds And Se 4 Ft At 10 Seconds. Chance Of Light Freezing Spray After Midnight.
Tue...W Winds 20 To 25 Kt With Gusts Up To 30 Kt. Seas 4 To 6 Ft, Occasionally To 8 Ft. Wave Detail: S 4 Ft At 9 Seconds. Chance Of Light Freezing Spray.
Tue Night...W Winds 15 To 20 Kt, Diminishing To 10 To 15 Kt After Midnight. Seas 3 To 5 Ft, Occasionally To 6 Ft. Wave Detail: W 4 Ft At 4 Seconds And Se 2 Ft At 9 Seconds. Chance Of Light Freezing Spray In The Evening.
Wed...W Winds 10 To 15 Kt, Becoming Sw 15 To 20 Kt With Gusts Up To 25 Kt In The Afternoon. Seas 2 To 3 Ft, Building To 3 To 5 Ft, Occasionally To 6 Ft In The Afternoon. Wave Detail: Sw 2 Ft At 4 Seconds And Se 2 Ft At 8 Seconds, Becoming S 4 Ft At 5 Seconds And Se 2 Ft At 10 Seconds.
Wed Night...Sw Winds 20 To 25 Kt, Diminishing To 15 To 20 Kt After Midnight. Seas 4 To 6 Ft, Occasionally To 8 Ft. Wave Detail: S 6 Ft At 6 Seconds And Se 2 Ft At 10 Seconds.
Thu...Sw Winds 15 To 20 Kt With Gusts Up To 25 Kt. Seas 4 To 6 Ft, Occasionally To 8 Ft.
Thu Night...W Winds Around 20 Kt With Gusts Up To 25 Kt. Seas 3 To 5 Ft, Occasionally To 6 Ft.
Fri...W Winds 15 To 20 Kt. Seas 3 To 5 Ft, Occasionally To 6 Ft.
Fri Night...Nw Winds 15 To 20 Kt With Gusts Up To 25 Kt. Seas 3 To 5 Ft, Occasionally To 6 Ft.
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Area Forecast Discussion
National Weather Service New York NY
342am EST Monday Jan 19 2026

.WHAT HAS CHANGED... Snow is coming to an end. Winter weather advisories have ended across the western parts of the CWA. Headlines remain up for parts of eastern CT and Long Island.

.KEY MESSAGES... 1.) Drier air works back into the region as low pressure departs.

2.) Temperatures will remain cold for much of the week.

3.) Potential for snow next weekend.

.KEY MESSAGE 1... Low pressure well east of the region continues to slide northeast away from the region. As it does, drier air will start to work into the region from west to east. Snow continues to fall across parts of eastern CT and Long Island, where Winter Weather Advisories remain in effect until 4 AM.

.KEY MESSAGE 2... A period of cold weather is expected this week as a series of cold fronts push across the region. The first front moves across the region Monday night. Expect temperatures Monday night to fall into the teens. With a brisk westerly flow of 15-20 mph wind chills will fall as low as a couple of degrees below zero in most areas NW of NYC, and in the lower single digits elsewhere. Highs on Tuesday will only be in the lower 20s with wind chills in the single digits and teens. High pressure moves overhead Tuesday night with lows falling into the single digits and teens.

As the high slides east and a return flow sets up, temperatures warm a bit on Wednesday and then a few degrees further on Thursday. Highs on Wednesday will be in the upper 20s and 30s. Thursday will be the warmest day of the week with highs in the upper 30s and lower 40s. A few rain/snow showers will be possible on Thursday as a warm front lift northward across the region.

A cold front moves across the region late Thursday, followed by a second on Friday evening. It will be this second cold front that brings a modified Arctic air mass into the area for the weekend. Highs on Friday will be in the middle 20s to lower 30s. The weekend will see highs only in the teens and lower 20s. Overnight lows will fall into the single digits.

.KEY MESSAGE 3... Forecast shows are hinting at the potential for a snowfall event next weekend. 00z GFS (Global Forecast System) keeps things dry with the low passing to the south, while the CMC models brings a quick moving clipper system across the area and a more robust low passing to the south. The AI models bring the low closer to the region. Its still way to early for any type of specifics, but something we need to keep an eye on.

Marine
A strengthening/gusty westerly flow will develop today between a low tracking through SE Canada and high pressure building to the south. This will result in SCA (Small Craft Advisory) conditions across all waters. The western ocean waters begin early this morning with the non ocean waters reaching SCA (Small Craft Advisory) conditions around noon. There is a chance that some gusts come close to gale force on the ocean waters east of Moriches tonight. It is likely that the SCA (Small Craft Advisory) will need to be extended on the the ocean waters into Tuesday night. Then there will be a brief lull later Tuesday night into Wednesday.

Some freezing spray is possible from late Monday night into Tue night on the ocean, sound, and at the harbor entrance.

Longer term, an extended period of SCA (Small Craft Advisory) conditions is likely mainly for the ocean waters from Wednesday night into Friday night. Some gusts up to 25 kt expected on the ocean Wednesday night with SW flow 20-25 kt, and then again Thu night on all waters as winds shift WNW after a cold frontal passage, otherwise elevated ocean seas 5-7 ft expected. Elevated seas 5-6 ft may be confined more to the waters E of Fire Island Inlet Fri into Fri night.

NOAA New York NY Office: Watches - Warnings - Advisories
CT...Winter Weather Advisory until 4am EST early this morning for CTZ006>008-010>012. NY...Winter Weather Advisory until 4am EST early this morning for NYZ078>081. NJ...None.

Marine
Small Craft Advisory from noon today to 6pm EST Tuesday for ANZ331-332-335-338-340-345. Small Craft Advisory until 6pm EST Tuesday for ANZ350-353-355.