National Weather Service United States Department of Commerce

Heavy Rain and Flash Flooding in the West; Heat Expands in the Central U.S.

Monsoonal moisture will produce showers and thunderstorms with heavy rain over parts of the Southwest, Great Basin, and Central Rockies through Monday. Flash flooding is possible, especially in and around burn scars and in areas of steep terrain. Heat will persist across the Central U.S. early this week, spreading into the Ohio Valley and Mid-Atlantic later this week. 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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