Flash Flooding and Damaging Winds in Wisconsin, August 9, 2009

The Shullsburg Fire Department and trained spotters reported fast-flowing water covered roads up to 1.5 feet deep. Also, gravel shoulders were washed out on a couple roads from the heavy rain in the area south and southwest of Shullsburg. There were also reports of small stream flooding as well as flooding of farm fields that damaged some crops.

A National Weather Service employee reported significant street flooding in the city of Monroe with water depths of 2 to 4 feet. Some water damage to basement contents was noted.

Damaging thunderstorm winds gusts blew trees down over roads in the city of Evansville.

Heavy rain caused significant street flooding and basement flooding in the city of Janesville. Fast-flowing water depths of 1 to 3 feet were noted on some roads and water damage to basement contents was noted.

Damaging thunderstorm wind gusts blew trees down over area roadways between Milton and Johnstown Center.

Law enforcement reported a number of trees blown down by strong thunderstorm wind gusts in and around the village of Highland.

Numerous public reports were made of trees blown down and power lines down in the city of Lake Geneva.

Tree damage from near Beulah Station (east of city of East Troy) to Honey Creek was noted by a trained spotter. Based on the size of the limbs and trees blown down they estimated winds in excess of 52 knots (60 mph).

Law enforcement reported trees blown down and blocking roads around Calamine in the civil township of Willow Springs, north of the city of Darlington.

Numerous trees and power lines were blown down in a 10-mile damage swath from just west of Waterford to the city of Racine. The FAA Terminal Doppler radar located in north-central Racine County about 5 miles east of the village of Wind Lake showed 85 knot winds at 250 feet above ground level. In Waterford a large tree fell on and damaged a business building. On the north side of Racine two power-poles came down. Several homes in the swath lost varying amounts of roof shingles. There were several reports of tree debris damaging home siding or portions of a roof. Piers and docks were lifted and twisted and damaged on Wind Lake. About 3.5 miles southwest of the City of Racine a camper was lifted by the wind gusts and slammed into a car. A large section of a corn field near Caledonia was flattned by the winds.

Lightning struck a business building and damaged all inside electronic equipment.

Powerful thunderstorm wind gusts toppled large trees and generated tree debris that brought down some power lines.

Powerful thunderstorm winds toppled many large trees in the city of Burlington. One tree had a vary large branch snap off and fall onto a car, curshing it in the process. Tree debris brought down several power-lines.

Law enforcement reported numerous trees and power lines down in a 3-mile wide swath over northeastern Lafayette County. The damage swath extended north into Iowa County and east-northeast into the counties of Green and Dane. Roof damage was also reported on several homes. Outside of the city of Blancardville, a barn was blown down.

A swath of thunderstorm wind damage occurred over southeast Iowa County. This swath extended into northeastern Lafayette County and east/southeast into the counties of Dane and Green. Overall the swath was about 15 miles wide. Numerous large trees were uprooted or large branches broken. Tree debris brought down some power-lines. Some roof shingles were blown off the roofs of a couple homes.

Numerous trees and power lines were blown down by thunderstorm wind gusts that were estimated at 61 knots (70 mph). This was from the same line of thunderstorms that moved through northern Racine County.

Police reported numerous trees and power lines blown down in a 10-mile wide swath. This was a separate thunderstorm cluster from the one that caused the damage near New Glarus.

Thunderstorm winds left a 3-mile wide swath of damage through the City of Kenosha. Numerous trees were uprooted and tree debris knocked down several power-lines. Construction arricades and signs were blown around, and one stop sign was pushed over.

Damage to trees and power lines was reported in a 6 mile wide swath from the Iowa County border to 5 miles west of New Glarus. This was a continuation of the line of thunderstorms that produced damage in southeast Iowa County. The length of the entire damage swath totaled about 10 miles.

Emergency Management reported large trees and power lines down in extreme southwestern Dane County, south of Daleyville, along Drammen Valey Rd. This damage was an extension of a damage swath that extended west into Iowa County and south-southwest into northwestern Green County and northeastern Lafayette County.

A trained spotter reported toppled large trees and and power lines down in the village of Orfordville due to thunderstorm winds.

Large trees uprooted and large limbs were knocked out of trees by powerful gusts with heavy rains.

Police reported numerous trees and power lines down between Milton and Janesville. Roof damage was reported in Janesville from the thunderstorm wind gusts, and several homes were damaged by tree debris. One home had some windows blown out. Barn damage was noted in the countryside around Janesville. A 68 knot (78 mph) wind gust was recorded at the Janesville Airport (KJVL).

Numerous trees and power lines were blown down by thunderstorm wind gusts. The gusts were measured to 74 mph, with sustained winds of 59 mph, on weather equipment owned by a ham radio operator near Delavan. A television meteorologist estimated wind gusts in Lake Geneva of 52 knots.

Police reported trees down in the village of Eagle with estimated wind gusts of 56 knots (65 mph).

Trees were reported to be blown down by thunderstorm wind gusts on the southeast side of the city of Waukesha by a trained spotter.

Large trees were either uprooted or split by powerful thunderstorm wind gusts.

Lightning struck a home and started a fire that resulted in a fair amount of damage.