National Weather Service United States Department of Commerce

A Number Of Hazards Expected Today

A number of hazards are expected across the U.S. today. Severe thunderstorms are expected in the Upper Mississippi Valley and from Missouri to the Carolinas. Widespread critical fire weather conditions are likely from the Southwest to south-central High Plains. Flood watches are in effect for parts of Hawaii and Alaska. Finally, record heat persists in the Southern U.S. Read More >

Overview

A cold front moved it's way south across Wisconsin on Tuesday with storms developing quickly over north-central Wisconsin shortly after sunrise. These storms quickly became severe in the NWS Green Bay forecast area. Large hail was reported in the Appleton area with hail approaching 4 inches in diameter. Storms continued south to southeast along the front and hail of 2 to 3 inches was reported in Fond du Lac. Additional storms developed along the southern flank of the front near Madison and produced hail around 1 inch. These southern storms continued to strengthen and hail closer to 2 inches was reported in Rock and Walworth counties. While the storms were very strong there was enough of a stable layer near the surface to prevent strong wind gusts from these storms from reaching the surface. These storms did produce very frequent and intense lightning and a couple of houses were struck and caught fire from the lightning strikes.

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Large Hail up to 3" in Fond du Lac from Betsy Spaeth