National Weather Service United States Department of Commerce

Extreme Heat Across the Southern U.S.; Severe Thunderstorms and Heavy Rain in the Plains and Mississippi Valley

A heat wave over the Southwest will intensify late week, peaking and expanding into the Intermountain West and northern High Plains this weekend. Severe thunderstorms and heavy rain are expected over portions of the Plains and Mississippi Valley tonight, which will shift to parts of the Upper Midwest and mid-Mississippi Valley Friday. Monsoonal showers and flooding persist in the Desert Southwest. Read More >

Overview

A very unstable air mass led to two rounds of thunderstorms across Wisconsin on Thursday, July 21, 2016. The first round moved across northern and central Wisconsin during the morning and contained damaging winds. The second round moved across central and southern Wisconsin during the evening which resulted in damaging winds and flash flooding.

Radar Loop
Radar Loop of Thunderstorms on July 21, 2016
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