Water Resources of the United States

Water-level Sensors

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Click here to verify the USGS authenticity.

Related Links

Archive of USGS Project Alert flood notices - local and regional flood briefs since 2008.
100-Year Flood--It's All About Chance - poster discussing the meaning and use of probability language in flood characterization.
Video: 2011: The Year of the Flood

State-based Flood Information

There is a USGS Water Science Center office in each State. Alabama Arkansas Georgia Illinois Indiana Kansas Louisiana Montana North Carolina North Dakota Oklahoma South Carolina Tennessee Wyoming Texas Alaska Arizona California Caribbean Colorado Connecticut Florida Hawaii Idaho Iowa Kentucky Maine Maryland-Delaware-D.C. Massachusettes Michigan Minnesota Mississippi Missouri Nebraska Nevada New Hampshire New Jersey New Mexico New York Ohio Oregon Pennsylvania Rhode Island South Dakota Utah Vermont Virginia Washington West Virginia Wisconsin

Click the map above to visit a State-specific flood page (if available), or check out one of these State flood databases:

Colorado Flood Database

Oklahoma Flood Database

USGS Contact Information

For questions related to this site or to contribute content, please email TODD KOENIG or BOB HOLMES.

USGS Flood Information   

The USGS provides practical, unbiased information about the Nation's rivers and streams that is crucial in mitigating hazards associated with floods. This site provides information about the USGS activities, data, and services provided during regional high-flow events, such as hurricanes or multi-state flooding events. The USGS response to these events is typically managed by the National Floods Specialist.


Another strong winter storm on the heels of holiday flooding dropped significant amounts of snow across a multi-state area stretching from Arkansas to Massachusetts. While emergency managers dealt with the inland effects of the blizzard, coastal areas experienced record-setting storm surge as high winds combined with high tides to flood many communities in the mid-Atlantic.

image of USGS flood event viewer

Coastal Surge: USGS personnel deployed 125 storm surge sensors in advance of the storm to collect data about significant waves anticipated in Delaware, New Jersey, and New York. The USGS Flood Event Viewer linked here shows locations of sensors and data collected during the event.

Check out this Science Feature to learn more about data collection efforts.

Local stories:

snow map

livescience (1/28/16): Great Wall of White: Epic Snowfall Visible from Space: A massive winter storm that slammed the U.S. East Coast last weekend dumped so much white stuff on the ground that the extensive snow cover was clearly visible from space...

snow map

USA TODAY (1/23/16): Snowstorm brings major coastal flooding along East Coast: The massive blizzard hammering the East Coast brought more than just snow and wind as New Jersey streets filled with water and ice from major coastal flooding from the storm Saturday...

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Page Last Modified: Thursday, 02-Feb-2017 17:54:07 EST