The month ended with several lines of strong and severe thunderstorms crossing Southeast Wisconsin during the late evening hours of July 30th into the early morning hours of July 31st. Hail up to 1.50 inch in diameter and damaging wind gusts up to 65 mph affected Fond Du Lac County with the first line, with a second line hitting  locations along and south of the Interstate 94 corridor from Dane County east to Lake Michigan. WE Energies reported 15,000 customers were without power.

Hail in RACINE, WISCONSIN
From 31-JUL-12 00:30:00 to 31-JUL-12 00:30:00 (CST-6)
Location: DOWNTOWN RACINE
Magnitude: 1.00 
Property damage: 25.00K
Reported by: Trained Spotter

A trained spotter reported large hail, estimated to be 1 inch in diameter, that fell 2 miles north of Racine. The hail damaged roofs and windows to several homes.

Hail in FOND DU LAC, WISCONSIN
From 30-JUL-12 21:40:00 to 30-JUL-12 21:40:00 (CST-6)
Location: FOND DU LAC
Magnitude: 1.50 
Reported by: Emergency Manager

The Fond Du Lac Emergency Manager reported large hail, estimated to be 1.50 inches in diameter, fell 2 miles southeast of the city of Fond Du Lac.

Hail in DANE, WISCONSIN
From 30-JUL-12 22:39:00 to 30-JUL-12 22:39:00 (CST-6)
Location: SUN PRAIRIE
Magnitude: 1.00 
Reported by: Law Enforcement

Law enforcement officers reported large hail, estimated to be 1 inch in diameter, fell in Sun Prairie.

Hail in DANE, WISCONSIN
From 30-JUL-12 22:40:00 to 30-JUL-12 22:40:00 (CST-6)
Location: SUN PRAIRIE
Magnitude: 1.00 
Reported by: Trained Spotter

A trained spotter reported large hail, measured to be 1 inch in diameter, that fell 1 mile northwest of Sun Prairie.

Hail in DANE, WISCONSIN
From 30-JUL-12 23:00:00 to 30-JUL-12 23:00:00 (CST-6)
Location: MARSHALL
Magnitude: 1.00 
Reported by: Public

The public reported large hail, measured to be 1 inch in diameter, that fell 3 miles southeast of Marshall.

Thunderstorm Wind in JEFFERSON, WISCONSIN
From 30-JUL-12 23:37:00 to 30-JUL-12 23:37:00 (CST-6)
Location: PALMYRA
Magnitude: 52.00 EG
Reported by: Trained Spotter

A trained spotter in Palmyra reported thunderstorm wind gusts estimated to be 60 mph (52 knots).

Thunderstorm Wind in WAUKESHA, WISCONSIN
From 30-JUL-12 23:57:00 to 30-JUL-12 23:57:00 (CST-6)
Location: MUSKEGO
Magnitude: 52.00 EG
Reported by: Law Enforcement

Law enforcement officials reported a tree blown down by thunderstorm wind gusts estimated to be 60 mph (52 knots) near the intersection of Big Bend Road and North Lake Drive.

Thunderstorm Wind in RACINE, WISCONSIN
From 31-JUL-12 00:05:00 to 31-JUL-12 00:10:00 (CST-6)
Location: WATERFORD
Magnitude: 56.00 EG
Reported by: 911 Call Center

The Racine 911 Call Center received reports of large trees blown down by thunderstorm wind gusts estimated to be 65 mph (56 knots) in the Caldwell area and in the Tichigan area west and north of Tichigan Lake. There were also reports of power lines arcing from damage due to the severe wind gusts.

Thunderstorm Wind in WALWORTH, WISCONSIN
From 30-JUL-12 23:50:00 to 30-JUL-12 23:55:00 (CST-6)
Location: LA GRANGE
Magnitude: 56.00 EG
Reported by: 911 Call Center

The Walworth 911 Call Center received numerous reports of trees blown down by thunderstorm wind gusts estimated to be 65 mph (56 knots). A road was blocked by a fallen tree.

Hail in WAUKESHA, WISCONSIN
From 30-JUL-12 23:50:00 to 30-JUL-12 23:50:00 (CST-6)
Location: NORTH PRAIRIE
Magnitude: 1.00 
Reported by: Trained Spotter

A trained spotter reported large hail, measured to be 1 inch in diameter, that fell 2 miles east of North Prairie.