Up to 4 inches of rain and hazardous flooding could develop in parts of southeastern Minnesota from Tuesday to Wednesday morning, according to a National Weather Service forecast issued at 5:30 a.m. Tuesday.
The area of concern includes Fillmore and Houston counties, which were hammered by storms and flooding over the weekend, as well as Dodge, Mower, Olmsted, Winona and Wabasha counties.
"This is a dangerous scenario," the weather service's alert said.
The primary concerns are heavy rain, large hail and flash flooding, with a possibility of tornadoes.
By mid-afternoon Tuesday, the chance of rain Wednesday in the Rochester area had been reduced to 40 percent.
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On Wednesday, there is a chance thunderstorms in the morning, with heavy rain and damaging winds possible.
Thursday and Friday are expected to be mostly sunny.
