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Law enforcement agencies are advising that Dane County motorists use caution during rush hour as water recedes from a late afternoon deluge Monday.

Madison police said a severe thunderstorm that passed through the metro area around 4 p.m. downed power lines and caused flash flooding as storm drains failed to keep up in some areas.

Police and trained weather spotters reported hail ranging from 1 to 2 inches across the Madison area. The largest hail was spotted in Middleton, according to reports published on the National Weather Service's website for its Sullivan office.

Most of the roadway flooding was concentrated on the city's South and West sides, said Sgt. Eugene Woehrly.

The Madison Fire Department reported that three cars attempted to drive through flood waters at the intersection of University Avenue at Rose Place and firefighters assisted one victim out of her passenger window and onto dry land.

Large hail fell on Madison's Far West Side Monday
© Wisconsin State JournalLarge hail fell on Madison's Far West Side Monday.


Neither Madison police nor the Dane County Sheriff's Office reported any crashes resulting from the storm, however, both agencies said they were responding to reports of downed trees and power lines.

Lt. Kerry Porter, of the sheriff's office, said a tree knocked down power lines and was blocking east bound lanes on Highway 19 near Highway F, east of Mazomanie.

Porter said deputies were also responding to a series of alarms triggered by the storm.

"For some reason storms always generates alarms, so we're running from one alarm to another right now," he said.

Just before 5 p.m., an Madison Gas & Electric's map showed widespread outages on Madison's West and Southwest sides. The largest outage stretched north along the Verona Road corridor from Raymond Road past the Beltline and into neighborhoods bounded by Nakoma Road and Midvale Boulevard. Two other significant outages hit customers in Middleton and rural Cross Plains, while smaller isolated outages cropped up across the metro area.