Winter Storm in the Central Appalachians through the Northeast; Heavy Snow in the Great Basin and Rockies

A winter storm will impact the central Appalachians to the Northeast through the night. Accumulating snow is expected for interior New England and the northern Mid-Atlantic. Scattered showers and occasional thunderstorms will persist across Florida and the Southeast coast. Locally heavy mountain snow is expected in the Great Basin and Rockies over the next couple of days. Read More >

Hazardous Weather Conditions

Small Craft Advisory until December 3, 06:00 AM EST

For More Weather Information:

New York, NY Local Forecast Office

10NM E Islip NY

Marine Point Forecast

[NOTICE]

Overnight
NNW 17kt
1ft

Small Craft Advisory
Wednesday
NNW 13kt⇓
< 1ft
Wednesday Night
⇑W 13kt
< 1ft
Thursday
⇑W 20kt
1ft
Thursday Night
NW 22kt⇓
< 1ft
Friday
S 9kt
< 1ft
Friday Night
SW 7kt
< 1ft
Saturday
W 10kt
< 1ft
Saturday Night
W 10kt
1ft

Associated Zone Forecast which includes this point

Last Update: 5:30 pm EST Dec 2, 2025
Forecast Valid: 12am EST Dec 3, 2025-6pm EST Dec 9, 2025

View Nearby Observations

Detailed Forecast

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT...

Overnight

NNW wind around 17 kt, with gusts as high as 23 kt. Cloudy, then gradually becoming partly cloudy. Seas around 1 ft.

Wednesday

NNW wind 10 to 13 kt decreasing to 7 to 10 kt in the afternoon. Sunny. Seas 1 ft or less.

Wednesday Night

W wind 6 to 9 kt increasing to 10 to 13 kt after midnight. Mostly clear. Seas 1 ft or less.

Thursday

W wind 14 to 17 kt increasing to 17 to 20 kt in the afternoon. Winds could gust as high as 27 kt. Mostly sunny. Seas around 1 ft.

Thursday Night

NW wind 17 to 22 kt becoming N 9 to 12 kt. Winds could gust as high as 28 kt. Mostly clear. Seas 1 ft or less.

Friday

N wind 6 to 9 kt becoming S in the afternoon. Partly sunny. Seas 1 ft or less.

Friday Night

SW wind around 7 kt becoming N after midnight. A chance of rain and snow before 1am, then a chance of rain. Seas 1 ft or less.

Saturday

NNE wind 5 to 10 kt becoming W in the afternoon. A chance of rain. Seas 1 ft or less.

Saturday Night

W wind around 10 kt. Partly cloudy. Seas around 1 ft.

*Notices:

This forecast is for a single location. For safety concerns, mariners should be aware of the weather over a larger area. Forecast information for a larger area can be found within the zone forecast and the NDFD graphics.
The forecast conditions at a particular point may not exceed the criteria of a Small Craft Advisory, Gale, Storm etc. These watches/warnings/advisories are issued for the entire zone in which the point resides and mariners should act accordingly.