Dangerous Heat in the Central and Eastern U.S.; Critical Fire Weather in the Great Basin and Southwest

Dangerous, record-breaking heat will intensify across most of the central and eastern U.S this week. Heat indices will likely exceed 100 degrees. Heat is likely to continue across the eastern U.S. through the Independence Day holiday weekend. Critical fire weather conditions will continue Tuesday across portions of the Four Corners and Great Basin, as dry conditions and gusty winds persist. Read More >

Hazardous Weather Conditions

For More Weather Information:

New York, NY Local Forecast Office

15NM SW Islip NY

Marine Point Forecast

[NOTICE]

Tuesday
⇑S 16kt
2-3ft

Small Craft Advisory
Tuesday Night
SW 21kt
4-5ft

Small Craft Advisory
Wednesday
⇑SSW 19kt
3-4ft
Wednesday Night
SW 22kt⇓
4-5ft
Thursday
SSW 16kt
3ft
Thursday Night
WSW 19kt⇓
3-4ft
Friday
⇑SSW 15kt
2-3ft
Friday Night
W 10kt
2-3ft
Independence Day
⇑SSW 12kt
2ft

Associated Zone Forecast which includes this point

Last Update: 2:24 am EDT Jun 30, 2026
Forecast Valid: 3am EDT Jun 30, 2026-6pm EDT Jul 6, 2026

View Nearby Observations

Detailed Forecast

...SMALL CRAFT ADVISORY IN EFFECT FROM 2 PM EDT THIS AFTERNOON

Tuesday

SW wind 6 to 9 kt becoming S 11 to 16 kt in the afternoon. Winds could gust as high as 22 kt. Mostly sunny. Seas 2 to 3 ft.

Tuesday Night

SW wind 16 to 21 kt, with gusts as high as 27 kt. A slight chance of showers and thunderstorms after 11pm. Seas 4 to 5 ft.

Wednesday

SSW wind 13 to 16 kt increasing to 16 to 19 kt in the afternoon. A slight chance of showers and thunderstorms after 2pm. Seas 3 to 4 ft.

Wednesday Night

SW wind 19 to 22 kt decreasing to 15 to 18 kt after midnight. A slight chance of showers and thunderstorms. Seas 4 to 5 ft.

Thursday

SSW wind 11 to 16 kt. Sunny. Seas around 3 ft.

Thursday Night

WSW wind 16 to 19 kt decreasing to 12 to 15 kt after midnight. Mostly clear. Seas 3 to 4 ft.

Friday

W wind 8 to 11 kt becoming SSW 12 to 15 kt in the afternoon. A chance of showers after 2pm. Seas 2 to 3 ft.

Friday Night

W wind 6 to 10 kt. A chance of showers. Seas 2 to 3 ft.

Independence Day

W wind 5 to 8 kt becoming SSW 9 to 12 kt in the afternoon. A chance of showers. Seas around 2 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.