2011 - The Year of the Flood
Science Center Objects
2011 proved to be another record-breaking flood year in the United States. USGS Water Science Center personnel from North Dakota to Louisiana measured springtime floods on the Red River of the North, the Ohio River, the Mississippi River, and many tributaries. The Missouri River and its tributaries saw record-breaking snow-melt runoff through the summer, followed closely by Hurricane Irene and Tropical Storm Lee in the fall for the East Coast.
This section outlines some of the nation-wide efforts of the USGS to study and document these record-breaking floods of 2011. See the "Related Science" tab above for a breakdown of the USGS response.
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Date published: February 28, 2019Status: ActiveHistorical Flooding
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...
Attribution: Water Resources, Floods and Droughts
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Date published: February 26, 2019Status: CompletedTropical Storm Lee
During and after Tropical Storm Lee, the USGS made stream flow measurements, sampled suspended sediment, and repaired gages in Connecticut, Maryland, Pennsylvania, Virginia, and other states in the region.
Attribution: Water Resources, Floods and Droughts -
Date published: February 26, 2019Status: CompletedHurricane Irene
Hurricane Irene, peaking as a Category 3 hurricane, battered Carribean Islands and U.S. states all along the eastern seaboard from South Carolina to Maine on August 21-29, 2011.
Attribution: Water Resources, Floods and Droughts -
Date published: February 25, 2019Status: CompletedSummer 2011 Missouri River Basin flood
Learn more about USGS flood activities related to the 2011 Missouri River Basin Flood resulting from higher-than-average snowmelt runoff combined with heavy spring rains.
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Date published: February 25, 2019Status: CompletedSpring/Summer 2011 Mississippi River Basin Floods
Learn more about USGS flood activities related to the Spring/Summer 2011 floods throughout the Mississippi River Basin.
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Date published: February 25, 2019Status: CompletedMay 2011 Louisiana flood
Learn more about USGS flood activities related to the May 2011 flood in Louisiana, including additional real-time monitoring for the Morganza and Bonnet Carre Spillways which were opened to release floodwaters into the Mississippi River.
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Date published: February 25, 2019Status: CompletedMay 2011 Memphis, Tennessee Flood
Learn more about USGS flood activities related to the May 2011 flood in Memphis, Tennessee, including deploying emergency real-time surface-water stage gages at critical locations in Shelby County.
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Date published: February 25, 2019Status: CompletedMay 2011 New Madrid Floodway
Learn more about USGS flood activities related to the May 2011 New Madrid Floodway breaches.
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Date published: February 25, 2019Status: CompletedApril 2011 Arkansas Flood
Learn more about USGS flood activities related to the April 2011 Arkansas Flood.
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Date published: February 25, 2019Status: CompletedApril 2011 North Dakota Flood
Learn more about USGS flood activities related to the April 2011 North Dakota Flood resulting from sudden winter snowmelt due to warmer-than-expected temperatures and rain.
Flooding in the Northeastern United States, 2011
Flooding in the Northeastern United States during 2011 was widespread and record setting. This report summarizes peak streamflows that were recorded by the U.S. Geological Survey (USGS) during separate flooding events in February, March, April, May, July, August, and September. The flooding of late April, which combined snowmelt and heavy rain and...
Suro, Thomas P.; Roland, Mark A.; Kiah, Richard G.
2011 floods of the central United States
The Central United States experienced record-setting flooding during 2011, with floods that extended from headwater streams in the Rocky Mountains, to transboundary rivers in the upper Midwest and Northern Plains, to the deep and wide sand-bedded lower Mississippi River. The U.S. Geological Survey (USGS), as part of its mission, collected...
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Date published: March 4, 2019USGS Flood Event Viewer
During large, short-term events, the USGS collects streamflow and additional data (including storm tide, wave height, high-water marks, and additional sensor deployments) to aid in documenting flood events. The USGS Flood Event Viewer provides convenient, map-based access to downloadable event-based data.
2011: The Year of the Flood
Devastating floods across much of the U.S. were severe and unrelenting during the spring and summer of 2011. When floods happen, USGS crews are among the first-responders. Often working in dangerous conditions, USGS scientists measure streamflow and river levels, repair and install streamgages, measure water quality and changes in sediment flow, and assess river changes.
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