Water Resources of the United States

USGS Flood-related Publications

Visit the USGS Flood Reports page for floods dating back over 100 years.

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.

  • 2015 Flood Events

A very wet summer across the middle of the US alleviated problem drought in some States while creating new problems in others.

Highlighted 2015 Flood Events

Ohio River basin precipitation map

March Midwest floods

Rapid snowmelt as well as repeated heavy rain events resulted in flooding over parts of the Ohio and middle Mississippi River drainages. The 30-day precipitation departure ending March 11 is shown here.

US WaterWatch map

Summer Central floods

Repeated high-intensity storms wiped out drought conditions across much of Texas while Oklahoma experienced the single largest month of rainfall ever recorded. Soon after, farm-belt States and the Ohio River valley endured an unusually wet summer.

Click the title above for news articles and other interesting information regarding these floods.

Click the image at left to see how persistent rains are reflected in USGS WaterWatch maps.

NASA map

Autumn Appalachian Floods and Hurricane Joaquin

While Hurricane Joaquin threatened from the South Atlantic Ocean, weeks of persistent and sometimes heavy rain soaked the Appalachian States. USGS crews prepared for the double-threat of inland flooding and potential coastal flooding and damage from the Hurricane. Joaquin eventually passed by with moderate effects on the coast while USGS crews remained occupied with the inland floods.

Click the title above or the image at left to see the USGS response for the resulting floods.

USGS WaterWatch flood map

2015/2016 Winter Floods

Widespread flooding from severe December 2015 rainfall affected large sections of the central and southern United States. Stress on the Nation's major rivers continued into 2016, as portions of the Ohio River, Missouri River, and Mississippi River threatened to match or exceed 2011 levels.

Click the title above or the image at left to see the USGS response for the resulting floods.

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URL: https://water.usgs.gov/floods/events/2015/
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Page Last Modified: Friday, 03-Feb-2017 10:28:01 EST