8 a.m. Update
SIOUX FALLS, S.D. - The National Weather Service has extended the flash flood watch for southwest Minnesota and northwest Iowa through this evening.
Original Post
SIOUX FALLS, S.D. - The National Weather Service has issued a flash flood watch for Nobles, Jackson and Rock counties in Minnesota and Lyon, Osceola, Dickinson and O'Brien counties in Iowa, to begin from 3 a.m. today and end this afternoon.
Heavy rainfall along and south of Interstate 90 late last night and yesterday morning of an inch to an inch and a half left the ground saturated with moisture. Another round of heavy rainfall moved toward the Interstate 29 corridor at about 3 a.m., then crossed most of northwest Iowa and southwest Minnesota before 6 a.m.
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This brought another round of rainfall to the area.
Flash flooding of creeks, streams and rivers will be possible as heavy rain moves through. Some urban flooding will also be possible.
A flash flood watch means conditions may develop that lead to flash flooding, a very dangerous situation. Anyone in the area should monitor later forecasts and be prepared to take action, should flash flood warnings be issued.
