StormCast — Weather & Emergency Alerts

Shelter Island Sound at Shelter Island (IN MLLW)
New York — Water Level & Flood Stage

Located in Suffolk County, New York on the Shelter Island Sound. Live water level data from USGS gauge 01304650, updated every 15 minutes.

Current Water Level

Gage Height

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Streamflow

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Last Reading

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Flood Stages

Major Flood

7.1 ft

Moderate Flood

6.1 ft

Minor Flood

5.1 ft

Flood stages defined by the National Weather Service. Gage height data from USGS Water Resources.

7-Day Water Level Chart

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View Official NWS Hydrograph →

Historic Crests

Date Stage Flow
Oct 28, 20127.73 ft
Oct 28, 20127.73 ft
Nov 7, 20124.14 ft
Nov 7, 20124.14 ft

About This Gauge

USGS Site

01304650

NWS LID

TERN6

River

Shelter Island Sound

County

Suffolk, NY

Coordinates

41.0441°N, 72.3169°W

Get Flood Alerts for Shelter Island Sound

StormCast monitors this gauge and sends a push notification to your phone when the water level crosses into a new flood category — even at 3 AM.

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Frequently Asked Questions

What is the current water level of Shelter Island Sound at Shelter Island (IN MLLW)?

The Shelter Island Sound at Shelter Island (IN MLLW) gauge is maintained by USGS (site 01304650) and reports water levels every 15 minutes. Visit this page to see the latest reading updated live, or download StormCast to get push alerts when levels rise.

What is flood stage for Shelter Island Sound at Shelter Island (IN MLLW)?

The NWS-defined flood stage for Shelter Island Sound at Shelter Island (IN MLLW) is 5.1 feet. Action stage begins at N/A feet. Moderate flooding starts at 6.1 feet, and major flooding at 7.1 feet.

How do I get alerts when Shelter Island Sound rises?

Download StormCast free on Google Play, go to River Gauges, and add Shelter Island Sound at Shelter Island (IN MLLW) to your watchlist. StormCast will send a push notification to your phone whenever the water level crosses into a new NWS flood category — even when your screen is off.

Where is the Shelter Island Sound at Shelter Island (IN MLLW) gauge located?

The gauge is located in Suffolk County, New York at coordinates 41.0441°N, 72.3169°W. USGS site number: 01304650. Data is provided by the U.S. Geological Survey and the National Weather Service.

More Resources

Source & Notes

Data provided by: US Geological Survey, Observations courtesy of U.S. Geological Survey