Data and Tools
RTD - Floods
Floods
View the U.S. map of flood and high-water conditions. You are able to narrow your view by State and by water resource region.
California Flood Activity Alerts
USGS Project Alert Notices RSS feed includes response summaries of USGS streamgaging network activity during storm events in California. These Notices are produced by USGS Streamgaging Programs nationally and can be found on the USGS Current Floods Website.
Data Used to Characterize Peak Streamflows and Flood Inundation Resulting from Hurricane Harvey
In the immediate aftermath of Hurricane Harvey, the USGS and FEMA worked together to document the storm event in southeastern Texas and southwestern Louisiana. This data release contains the flood inundation polygons, flood-depth rasters, mapped boundaries, and high-water mark (HWM) locations for the selected river basins...
USGS SWaTH Network
SWaTH is a system of flood-hardened, real-time telemetered tide gages, rapid deployment gages, and storm tide sensors deployed in integrated network configurations along the Northeastern Atlantic Coast from North Carolina to Maine.
USGS WaterNow
Want to know what's happening right now? Request real-time information from any USGS streamgage with the USGS WaterNow text service. This service responds to your text message with information about the current stage, streamflow, or other parameters collected at the gage.
USGS Peak Streamflow Data
The National Water Information System (NWIS) is the USGS water data portal where you can find a wealth of historic and real-time data related to floods. The NWIS website also is where you can query peak streamflow data by station, state (...
FloodWatch - View flood and high-flow conditions.
The USGS FloodWatch website is a map-based resource from USGS WaterWatch that gives users hourly visual updates for flood conditions at over 3000 locations across the United States (...
USGS Flood Event Viewer - Network
The USGS operates an event-based mobile storm-surge sensor network to capture information about coastal and inland storm tides.
WaterWatch - Floods NJ
Real-Time Interactive Map of Floods and High Flow conditions in New Jersey
Flood Watch for Kansas
Maps of flood and high flow conditions within Kansas
Water-Quality Summaries for Several Major River Basins in Colorado
Summaries of water-quality monitoring data are now available for several major river basins in Colorado. For each basin, current data from a network of sites are compared to previously collected data and instream standards. Lowess curves are provided on plots for selected constituents where a sufficient period of record and limited censored data are available.
Flood Watch
Maps of flood and high flow conditions within the U.S.