Water Resources of the United States


WATER DATA FOR THE NATION

National Water Information System (NWIS)

View current and historical streamflow, groundwater level, and water-quality data

Data Discovery

For more data options, explore our data discovery tools.

Today's Water Conditions

View maps of current and historical conditions

Click map to go to current water resources conditions in the U.S.

Subscribe to hydrologic alerts:

WaterNow@usgs.gov

WATER SCIENCE SPECIALTIES

WATER SCIENCE BY STATE

USGS Water Science Centers are located in each state

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

USGS Flood Information

Resources

USGS tools, websites, publications, and other resources for monitoring, studying, and communicating flood information.

USGS FloodWatch

How to use this map | Larger Version
map

Storm-Tide and Flood Inundation Mapping

Collaboration With Other Agencies

Non-Federal Flood Resources

(Note: Links to outside websites does not imply endorsement by the U.S. Geological Survey.)

USGS National Flood Resources

Flood Literature and Presentations

USGS Flood Reports

For questions related to this site or to contribute content, please email Todd Koenig or Bob Holmes at the USGS Office of Surface Water.

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Page Last Modified: Tuesday, 15-Apr-2014 12:11:46 EDT