In this April 30, 2013 photo, members of the United States Geological 

In this April 30, 2013 photo, members of the United States Geological Survey prepare to launch a boat on the Red River in Fargo, N.D., so a USGA hydrologist can take stream flow measurements. Even with reams of data, forecasting a flood is still an imprecise science. (AP Photo/Dave Kolpack)
Associated Press
In this April 30, 2013 photo, members of the United States Geological Survey prepare to launch a boat on the Red River in Fargo, N.D., so a USGA hydrologist can take stream flow measurements. Even with reams of data, forecasting a flood is still an imprecise science. (AP Photo/Dave Kolpack)
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