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Lower Mississippi-Gulf Water Science Center - Mississippi
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ABOUT THE MS WSC
USGS IN YOUR STATE
USGS Water Science Centers are located in each state.
Hattiesburg Flood Inundation
Project Chief: John Storm
USGS Flood Inundation Mapper
Floods are the most common and widespread of all natural disasters in the United States and are the leading cause of weather related deaths. Advances in technology have improved warning systems and have helped to decrease the loss of life over the past 50 years. Several sources of information are available to citizens and public officials to help make timely decisions regarding flood awareness and flood loss mitigation. Sources of information include the U.S. Geological Survey (USGS) real-time streamgaging network web site and the National Weather Service (NWS) forecast of peak stage at USGS streamgages.
Screen capture of the Flood Inundation Mapper.
Although current USGS stage and NWS forecasted stage data are particularly useful for residents in
the immediate vicinity of a streamgage, the data are of limited use to residents further upstream or
downstream because water-surface elevations are not constant for the entire length of any stream of
interest. Also, information related to water depth at locations other than those near USGS streamgages
or NWS flood-forecast points is typically lacking. To help guide the general public in taking individual
safety precautions and to provide local officials with a tool to help efficiently manage emergency flood
operations and flood-mitigation efforts, a library of static flood-inundation maps can be developed
using hydraulic modeling, a Digital Elevation Model, and a Geographic Information System. The library
consists of digital maps created in advance of a flood that show areal extent of flooding and water depth
for pre-determined stream-stage intervals. Users can determine the most relevant map based on USGS
real-time stage information or NWS forecasted flood stage.
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