Slow-moving storm brings risk of flash flooding to Minnesota

A slow-moving storm has the potential to cause flash flooding in parts of Minnesota Sunday into Monday.

On another muggy day, instability will develop starting Sunday afternoon, bringing isolated severe storms to Minnesota as it cuts a diagonal swath from southwest to northeast.

Risks include 60 mph wind gusts and 1-inch diameter hail where the most severe storms appear, but the wider risk will be rain, with the storms that develop likely to be slow to shift, moving gradually east into western Wisconsin.

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The National Weather Service in Duluth says that there's the potential for localized rain totals of 2-3 inches at the worst-hit points, and around one inch for the rest of the storm area.

"The slow storm motions and likely some training of storms, we do have some concerns for locally heavy rainfall rates with a potential for flash flooding," the Duluth forecast discussion reads.

"As we have been drier the last couple weeks, the soil should be able to handle this rainfall, but this may change."

The risk area for storms and flash flooding does include the Twin Cities metro, although it is on the edge of the zone expected to see the most storm action.

The NWS Twin Cities says that its watch area covering central and southern Minnesota can expect "disorganized clusters of showers and thunderstorms" Sunday afternoon through Sunday night.

It's currently looking like precipitation hitting the Twin Cities will arrive Sunday evening and continue throughout much of the night.

Storms are then expected to redevelop on Monday east of Interstate 35, likely affecting southeast Minnesota.