In 2011, Montana experienced floods of a magnitude rarely experienced in a state that more generally suffers from drought than flood. Three storm systems moved across the state dumping an extraordinary amount of precipitation. These systems moved through eastern Montana during May and through southwestern Montana in June. Snow in the eastern plains and saturated soils contributed to the increased runoff that occurred after the storms. Flooding continued into June because of snowmelt, ice jams, and reservoirs being unable to hold any more water.