The Mississippi River broke its banks in places as heavy rain saw flood warnings issued early Saturday from Illinois to Mississippi and Florida.

The National Weather Service said early Saturday that there had been “moderate flooding” of the Mississippi at Burlington, Iowa.

Warnings were in place for rivers in Missouri, Tennessee, Alabama, Louisiana, Mississippi, Florida, Wisconsin, Illinois and Iowa.

“Deep moisture getting pulled northward out of the eastern Gulf of Mexico and Atlantic will fuel moderate to heavy rains along a wrapped up cold front edging through the Tennessee valley and Southeast on Saturday,” the weather service said.

“Early Sunday, the front will pivot northward and heavy precipitation will begin spreading into the southern Appalachians and southern Mid-Atlantic states. Some rumbles of thunder will be possible, but given the slow progression of the front and upslope flow against the Appalachians flooding and flash flooding will be the primary threat with this system,” it added.

The NWS said temperatures could be low enough for snow over southwestern Tennessee and northern Alabama late Saturday.

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