2011 was a devastating year for flooding impacts and provided a clear example of why Americans depend on multi-agency water resource services like flood forecasts and warnings issued by the NWS, water observations provided by the USGS, water control and management provided by the U.S. Army Corps of Engineers, and the Federal Emergency Management Agency's efforts in flood preparedness and response. At any time, heavy rainfall or rapid snow melt can lead to flooding. Each geographic region of the United States has one or more times of the year with an increased risk of flooding. In the late fall and winter, powerful Pacific storms can strike the West Coast causing extensive flooding. From late winter into spring, people living across the northern third of the nation closely monitor NWS forecasts when snow and ice can melt quickly, potentially causing ice jams and extensive river flooding. In the spring and summer, the threat of a flash flood from a thunderstorm is always a possibility almost anywhere in the country. Each summer and fall, millions of people living near the Gulf and East coasts listen keenly to tropical weather reports to determine if flooding from a tropical storm or hurricane will impact their area. As our nation's infrastructure ages, increased stresses on dams and levees due to the seasonal impacts described above can heighten flood threats. Regardless of the cause, the NWS is committed to improving the timeliness and accuracy of river and flood forecasts and warnings necessary to help protect lives and livelihoods.
Water resources decision makers require new and more integrated information and services to adapt to the uncertainty of future climate, land-use changes, an aging water delivery infrastructure, and an increasing demand on limited resources. Dr. Thomas Graziano, Chief of the NWS Hydrologic Services Division, stated; To address these growing challenges and to mitigate the death and destruction caused by floods, NOAA, the U.S. Army Corps of Engineers, and the U.S. Geological Survey, with complementary missions in water science, observation, prediction and management, have formed a partnership entitled Integrated Water Resources Science and Services (IWRSS) to address the nation's water resources information and management needs. In May 2011, this partnership was formalized through a Memorandum of Understanding signed by the three agencies.On February 21, 2012, NOAA commenced the official groundbreaking of the new National Water Center (NWC) on the campus of the University of Alabama in Tuscaloosa. Gary Carter, Director of the NWS Office of Hydrologic Development, stated, The NWC will create a first-of-its-kind national center for water forecast operations, research and interagency coordination and serve as a catalyst for IWRSS. It will support the routine generation of enhanced water resources forecasts and information to more effectively manage the Nation's increasingly limited water supply and facilitate adaptive planning and management. The NWC will be ready for initial occupation in late fiscal year 2013 and will be staffed by multiple federal partner water agencies to ensure strong coordination and collaboration.
Extensive information about flooding and flood safety, including educational materials, videos, brochures and news articles can be found online at:
http://www.weather.gov/floodsafety/
Detailed information can be found on this Web page about important topics covered in the following paragraphs.
Advanced Hydrologic Prediction Service
The Advanced Hydrologic Prediction Service (AHPS) is the NWS frontline solution for providing improved river and flood forecasting and water information across America. AHPS provides a suite of graphical and numeric products over the Internet to assist the public, community leaders and emergency managers in making better life- and cost-saving decisions about evacuations and movement of property before flooding occurs. The broad reach of AHPS extends the range of forecasts from short-term (up to 6 hours) to long-term (out to weeks and months). AHPS provides the public with more detailed and accurate answers to the following questions: How high will the river rise? When will the river reach its peak? Where will the flooding occur? How long will the flood last? How long will the drought continue? How certain is the forecast?
Your gateway to Web resources provided through AHPS begins here:
http://water.weather.gov
Turn Around Don't Drown
Floods, Droughts, and Other Related Phenomena.
Hydrologic extremes have always plagued our vast nation. In 2011 the nation experienced severe drought in Texas and Oklahoma, snowmelt flooding in the northern tier states, heavy rainfall flooding over the Ohio and Middle Mississippi River Valleys that lead to flooding along the Lower Mississippi River and inland flooding from tropical systems along the east coast states and into New England. Each of these phenomena has its own unique set of risks and associated safety protocols. For more information on these and other hydrologic extremes, refer to:
http://www.nws.noaa.gov/floodsafety/index.shtml
At MemphisWeather.net, we have provided the MWN Flood Center to our users, which contains many resources that will aid you during times of flooding and flash flooding in the Mid-South:
http://www.memphisweather.net/flood-center.shtml
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For weather information for Memphis and the Mid-South, where and when you need it, visit MemphisWeather.net on the web, m.memphisweather.net on your mobile phone, download our iPhone or Android apps, or visit us on Facebook or Twitter.
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