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.


Significant amounts of tropical moisture from the Eastern Pacific and Gulf of Mexico funneled through a narrow zone across East Texas, Louisiana, Arkansas, and Mississippi to create some of the largest non-hurricane flood conditions ever recorded in some areas.

image of NWS rainfall map

March Rainfall: Large areas across the southern midwest experienced cumulative rainfall amounts of 10 to 20 inches or more.

Click the image at left to see a larger version, or visit the National Weather Service AHPS website for more precipitation maps and river forecasts.

image of USGS flood event viewer

Inundation High-Water Mark Collection: Over 30 USGS personnel fanned out across Lousiana in support FEMA efforts to identify flooded areas. The USGS Flood Event Viewer linked here shows locations of sensors and data collected during and immediately after the event.

Check out this new publication: Identifying and Preserving High-Water Mark Data to learn more about how USGS personnel collect high-water data!

image of USGS WaterWatch map

Regional Flooding: Flash floods and longer-duration flooding quickly spread through large portions of East Texas, Louisiana, Mississippi, and Southern Arkansas.

Click the image at left or visit USGS WaterWatch for current flood conditions and other tools to explore flood and drought.

image of FEMA website

FEMA disaster declaration: Incident period: March 08, 2016. Major Disaster Declaration declared on March 13, 2016

Imagery available:

Zoom and click on points and areas below to view aerial imagery for this event. Click here for larger map.

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URL: https://water.usgs.gov/floods/events/2016/mar_south/
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Page Last Modified: Thursday, 02-Feb-2017 17:55:08 EST