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.
2011 Floods of the Central United States - a collection of independent but complementary chapters dealing with various scientific aspects of the 2011 floods in the Central United States.
Assessment of Floodplain Vulnerability during Extreme Mississippi River Flood 2011 by Allison Goodwell and others, Feb. 10, 2014, American Chemical Society: Environmental Science and Technology
The USGS Tennessee Water-Science Center worked in cooperation with FEMA, USACE, National Weather Service, and local agencies to provide emergency real-time surface-water stage gages at critical locations in Shelby County. The emergency gages included a replacement gage on the Mississippi River at Memphis and other critical locations. Information from the gages assisted the National Weather Service and the Emergency Management agencies in flood forecasts as the crest of the Mississippi river flooding approached and passed Memphis, Tennessee.
The USGS Tennessee Water-Science Center sent four additional crews deployed to the FEMA emergency designated areas, Stewart, Lake, Dyer, and Shelby Counties in Tennessee to document high-water levels in the flooded areas. Six transducers were also deployed to monitor the flood rise, peak levels, and recession. The combination of the high-water marks, transducers, and the emergency gaging are being used to develop flood inundation maps for FEMA. See Additional Resources below for preliminary inundation maps.
*Note: This draft data is based on estimates of water level that have not yet been fully processed and may not represent actual conditions in the area.
Photos and Stories from the Memphis Commercial Appeal website