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Bow Echo Slams Southern Wisconsin

Jun 08, 2011
Conditions were ripe for severe thunderstorms across Southern Wisconsin on Wednesday afternoon. Dodgeville, Madison, Albion east to Milwaukee were especially hit hard by the storms. Warm and humid conditions along with an advancing cold front set the stage for the possibility of severe weather across the area throughout the afternoon. At 4:15 p.m. storm initiation had occurred in Grant County along the front with storms rapidly becoming severe.

Eventually the storms congealed into more of a west to east line across Iowa and Dane County that tracked east around 25 to 30 mph. A severe storm rapidly moved east out of Eastern Iowa and eventually combined with the storms over Wisconsin helped the storms to bow out into what is called a bow echo. Usually the strongest winds are located in the center of the bow as depicted on radar in bright green below.

Bow Echo moving into Southeastern Wisconsin - June 8, 2011Bow Echo moving into Milwaukee County, Wisconsin - June 8, 2011Strong Velocities showing damaging winds across Eastern Dane County - June 8, 2011

The storms produced some minor tree damage and power outages across the area. Albion, Wisconsin (north of Janesville) had numerous tree damage along with power outages as SCF team was out chasing this event. In addition to the strong straight line winds, a weak EF-1 tornado tracked near Verona northeast up through McFarland, Wisconsin. The damage associated with this tornado was primarily tree, downed power lines and roof shingle damage.

Make sure to browse the news section for additional U.S. and Wisconsin weather news information.

Radar Images provided by Base Velocity, LLC - Radarscope iPhone App

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