National Weather Service United States Department of Commerce

Powerful Winter Storm from the Upper Midwest into the Northeast; Severe Thunderstorms in the Midwest and Ohio Valley

A rapidly-intensifying storm is expected to bring heavy snow, blizzard conditions, and icing from the Upper Midwest through the Great Lakes and Northeast. Scattered severe thunderstorms may produce severe/damaging wind gusts and a couple of tornadoes across parts of the Midwest and lower Ohio Valley through the evening. Arctic air will expand across the central and southern U.S.. Read More >

Overview

Severe storms moved through much of the region on the evening of June 16th, 2014, producing torrential rainfall and strong to damaging winds. The line of storms developed in southwest Minnesota and northwest Iowa and drove eastward through the evening.

Some hail occurred too, with golf ball size hail reported near Strawberry Point, Iowa.

The hardest hit area was Platteville, WI where 5 injuries occurred, cars were flipped and some buildings destroyed. The storms also produced some flash flooding in portions of southeast Minnesota where 2-4 inches of rain fell in 2 hours or less.

The storms were the result of a strong flow of warm, moist air from the Gulf, a wavering west to east running frontal boundary, and a very unstable atmosphere.

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Radar loop from 5:30 to 11:45 p.m.
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