A weak cold front moved southeast through southern Wisconsin and several thunderstorms along the front became severe.  Large hail up to 1 inch in diameter and powerful wind gusts to around 52 knots (60 mph) were produced.  Dewpoints in the upper 60s to lower 70s resulted in CAPE values of 1500-2000, which was sufficient for severe storm development.

Thunderstorm Wind in DODGE, WISCONSIN
From 09-JUL-07 10:18:00 to 09-JUL-07 10:18:00 (CST-6)
Location: RUBICON
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Powerful thunderstorm wind gusts to around 52 knots (60 mph) toppled several large trees.

Hail in WAUKESHA, WISCONSIN
From 09-JUL-07 10:31:00 to 09-JUL-07 10:31:00 (CST-6)
Location: HARTLAND
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in ROCK, WISCONSIN
From 09-JUL-07 12:00:00 to 09-JUL-07 12:00:00 (CST-6)
Location: MILTON
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in JEFFERSON, WISCONSIN
From 09-JUL-07 12:03:00 to 09-JUL-07 12:03:00 (CST-6)
Location: COLD SPG
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in WALWORTH, WISCONSIN
From 09-JUL-07 12:56:00 to 09-JUL-07 12:56:00 (CST-6)
Location: SPRING PRAIRIE
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm wind gusts to about 39 knots (45 mph) also noted.

Hail in WALWORTH, WISCONSIN
From 09-JUL-07 13:05:00 to 09-JUL-07 13:05:00 (CST-6)
Location: WILLIAMS BAY
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in RACINE, WISCONSIN
From 09-JUL-07 13:05:00 to 09-JUL-07 13:05:00 (CST-6)
Location: BURLINGTON
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Hail in JEFFERSON, WISCONSIN
From 09-JUL-07 09:50:00 to 09-JUL-07 09:52:00 (CST-6)
Location: WATERLOO
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Lightning in DODGE, WISCONSIN
From 09-JUL-07 02:15:00 to 09-JUL-07 02:15:00 (CST-6)
Location: MAYVILLE
Property damage: 60.00K
Crop damage: 0.00K
Reported by: Newspaper

Lightning struck a barn on Morris Rd., resulting in a fire that destroyed the structure, as well as a 1994 vehicle parked inside.  An adjacent small shed also had a small fire that was quickly extinguished.

Thunderstorm Wind in KENOSHA, WISCONSIN
From 09-JUL-07 13:05:00 to 09-JUL-07 13:05:00 (CST-6)
Location: TWIN LAKES
Magnitude: 52.00 EG
Property damage: 30.00K
Crop damage: 0.00K
Reported by: Newspaper

Powerful thunderstorm gusts to around 52 knots (60 mph) toppled large trees and tree branches.  The tree debris damage a home's porch and garage, and a car and boat.

Hail in WALWORTH, WISCONSIN
From 09-JUL-07 12:02:00 to 09-JUL-07 12:02:00 (CST-6)
Location: WHITEWATER
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Thunderstorm Wind in KENOSHA, WISCONSIN
From 09-JUL-07 13:43:00 to 09-JUL-07 14:00:00 (CST-6)
Location: KENOSHA AIRPORT
Magnitude: 50.00 MG
Property damage: 75.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Powerful thunderstorm winds toppled many trees.  The hardest-hit area in the city of Kenosha was centered around 30th Ave. and 75th St. where a church steeple was knocked over by the winds.  At least 4 vehicles were damaged by tree debris.  Additionally, minor urban-type flooding (water up to the curb) occurred for about 30 minutes on some roads in the city of Kenosha.  The gust was measured at the Kenosha Airport ASOS site, although a higher gust was possible where the church steeple was toppled.  About a dozen power-lines came down on the south side of the city of Kenosha due to tree debris, leaving about 3600 customers without power.

Thunderstorm Wind in WALWORTH, WISCONSIN
From 09-JUL-07 12:40:00 to 09-JUL-07 12:40:00 (CST-6)
Location: DELAVAN
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Powerful thunderstorm winds toppled several large trees.

Thunderstorm Wind in WASHINGTON, WISCONSIN
From 09-JUL-07 10:17:00 to 09-JUL-07 10:17:00 (CST-6)
Location: KOHLSVILLE
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Powerful thunderstorm wind gusts to around 52 knots (60 mph) toppled several large trees.