Major Flood
12 ft
Current Water Level
Gage Height
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Streamflow
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Last Reading
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FLOOD STAGES
Know the flood categories.
Flood stages defined by the National Weather Service. Gage height data from USGS Water Resources.
Moderate Flood
11 ft
Minor Flood
10 ft
Action Stage
9.5 ft
What Floods at Each Level
13.1 ft
Inundation of one to three feet of water on the runways at LaGuardia Airport.
12.7 ft
Inundation of one to two feet on taxiways at LaGuardia Airport and in Douglaston Park.
10.8 ft
Inundation occurs on the FDR Drive in Manhattan. Elevated water levels on the East River force the water into catch basins and storm sewers and cause water to bubble and pour out of manholes on the northbound FDR Drive leading to road closures in the upper 80's and lower 90's. In Rye, inundation causes portions of Milton Road and Kirby Lane at the Tide Mill Basin to close.
10.2 ft
Minor coastal flooding in Port Washington along Shore Road, Sector Drive, and Sunset Park on Main Street.
10 ft
Milton Road and Kirby Lane in Rye close during high tide.
Impact statements from the National Weather Service, describing what typically happens at each water level.
7-Day Water Level Chart
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Historic Crests
| Date | Stage | Flow |
|---|---|---|
| Sep 20, 1938 | 16.75 ft | — |
| Aug 30, 1954 | 14.76 ft | — |
| Oct 28, 2012 | 14.31 ft | — |
About This Gauge
USGS Site
NWS LID
SADN6
River
Long Island Sound
County
Nassau, NY
Coordinates
40.8661°N, 73.7103°W
Get Flood Alerts for Long 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.
Frequently Asked Questions
What is the current water level of Long Island Sound at Sands Point (IN MLLW)?
The Long Island Sound at Sands Point (IN MLLW) gauge is maintained by USGS (site 01302250) 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 Long Island Sound at Sands Point (IN MLLW)?
The NWS-defined flood stage for Long Island Sound at Sands Point (IN MLLW) is 10 feet. Action stage begins at 9.5 feet. Moderate flooding starts at 11 feet, and major flooding at 12 feet.
How do I get alerts when Long Island Sound rises?
Download StormCast free on Google Play, go to River Gauges, and add Long Island Sound at Sands Point (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.
Where is the Long Island Sound at Sands Point (IN MLLW) gauge located?
The gauge is located in Nassau County, New York at coordinates 40.8661°N, 73.7103°W. USGS site number: 01302250. Data is provided by the U.S. Geological Survey and the National Weather Service.
More Gauges on Long Island Sound
More Resources
Source & Notes
Data provided by: US Geological Survey, Observations courtesy of U.S. Geological Survey
- Gauge awaiting repair - automated readings are not available at this time.