Flash Flooding Risk Continues in Texas; Wildfire Smoke Impacts in the East

Widespread, life-threatening considerable flash flooding is expected in south-central Texas through at least Friday. Catastrophic river flooding and rapid rises on small streams, arroyos, and typically dry washes are expected in the Texas Hill Country. Wildfire smoke is impacting air quality across much of the Great Lakes region into the Northeast U.S. with Air Quality Alerts in effect. Read More >

For More Weather Information:

New York, NY Local Forecast Office

12NM NW Islip NY

Marine Point Forecast

[NOTICE]

Tonight
⇑NW 6kt
< 1ft
Thursday
W 10kt
< 1ft
Thursday Night
NW 10kt
< 1ft
Friday
Light Wind
< 1ft
Friday Night
SSW 6kt⇓
< 1ft
Saturday
⇑S 12kt
< 1ft
Saturday Night
SW 12kt
< 1ft
Sunday
WNW 11kt
< 1ft
Sunday Night
NNW 7kt
< 1ft

Associated Zone Forecast which includes this point

Last Update: 8:08 pm EDT Jul 15, 2026
Forecast Valid: 9pm EDT Jul 15, 2026-6pm EDT Jul 22, 2026

View Nearby Observations

Detailed Forecast

Tonight

Variable winds less than 5 kt becoming NW around 6 kt. Areas of smoke. Seas 1 ft or less.

Thursday

W wind 5 to 10 kt. Patchy smoke. Seas 1 ft or less.

Thursday Night

NW wind 6 to 10 kt becoming N after midnight. Widespread smoke, mainly after midnight. Seas 1 ft or less.

Friday

Variable winds 5 kt or less. Mostly sunny. Seas 1 ft or less.

Friday Night

SSW wind around 6 kt becoming variable and less than 5 kt after midnight. Mostly cloudy. Seas 1 ft or less.

Saturday

S wind 5 to 8 kt increasing to 9 to 12 kt in the afternoon. A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Seas 1 ft or less.

Saturday Night

SW wind around 12 kt. Showers and possibly a thunderstorm before 2am, then showers likely. Seas 1 ft or less.

Sunday

WNW wind 9 to 11 kt. Showers likely. Seas 1 ft or less.

Sunday Night

NNW wind 5 to 7 kt. Mostly clear. Seas 1 ft or less.

Winds and seas may be higher in and near tstms.

*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.