Seth Binau, a forecaster with the National Weather Service, breaks down the flood warnings and rainfall totals in south-central Minnesota. Biau also describes the makeup of front that brought about torrential rain.
A series of disturbances moving along a stalled frontal boundary dropped extremely heavy rain on much of northern Iowa and southern Minnesota on September 14th and 15th, 2004. More than 10 inches of rain fell in a 36-hour period in Faribault and Freeborn Counties. 6-inch totals were common in the region.