Two rounds of thunderstorms moved across western Wisconsin on May 15th. The first formed in the afternoon and dropped some dime sized hail across portions of Juneau County. A lightning strike from this first round of storms ignited a fire at a care facility in Holmen (La Crosse County). The second round moved across Grant County during the evening hours with 60 to 65 mph winds and some dime sized hail. A 68 mph wind gust occurred in Cuba City. The winds damaged roofs on a church in Tennyson and a school in Cuba City.

Hail in JUNEAU, WISCONSIN
From 15-MAY-17 13:37:00 to 15-MAY-17 13:37:00 (CST-6)
Location: ELROY
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in JUNEAU, WISCONSIN
From 15-MAY-17 14:05:00 to 15-MAY-17 14:05:00 (CST-6)
Location: MAUSTON
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in GRANT, WISCONSIN
From 15-MAY-17 18:43:00 to 15-MAY-17 18:43:00 (CST-6)
Location: BRODTVILLE
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Thunderstorm Wind in GRANT, WISCONSIN
From 15-MAY-17 19:03:00 to 15-MAY-17 19:03:00 (CST-6)
Location: POTOSI
Magnitude: 56.00 EG
Property damage: 50.00K
Crop damage: 0.00K
Reported by: Emergency Manager

An estimated 65 mph wind gust occurred in Potosi. Trees were blown down and windows shattered by the winds. Some of the trees landed on houses and several campers in a campground were also damaged.

Thunderstorm Wind in GRANT, WISCONSIN
From 15-MAY-17 19:11:00 to 15-MAY-17 19:11:00 (CST-6)
Location: ELLENBORO
Magnitude: 40.00 EG
Property damage: 0.50K
Crop damage: 0.00K
Reported by: Law Enforcement

Debris was blown across a highway southeast of Lancaster.

Thunderstorm Wind in GRANT, WISCONSIN
From 15-MAY-17 19:20:00 to 15-MAY-17 19:20:00 (CST-6)
Location: CUBA CITY
Magnitude: 59.00 MG
Property damage: 50.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A wind gust of 68 mph occurred in Cuba City. The roof of a private school was blown off by the winds.

Hail in GRANT, WISCONSIN
From 15-MAY-17 19:23:00 to 15-MAY-17 19:23:00 (CST-6)
Location: MONTFORT
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Thunderstorm Wind in GRANT, WISCONSIN
From 15-MAY-17 19:23:00 to 15-MAY-17 19:23:00 (CST-6)
Location: MONTFORT
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

An estimated 60 mph wind gust occurred in Montfort.

Hail in BUFFALO, WISCONSIN
From 15-MAY-17 20:45:00 to 15-MAY-17 20:45:00 (CST-6)
Location: FOUNTAIN CITY
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Thunderstorm Wind in GRANT, WISCONSIN
From 15-MAY-17 19:25:00 to 15-MAY-17 19:25:00 (CST-6)
Location: HAZEL GREEN
Magnitude: 52.00 EG
Property damage: 0.50K
Crop damage: 0.00K
Reported by: Public

An estimated 60 mph wind gust blew down small tree branches in Hazel Green.

Lightning in LA CROSSE, WISCONSIN
From 15-MAY-17 12:30:00 to 15-MAY-17 12:30:00 (CST-6)
Location: HOLMEN
Property damage: 250.00K
Crop damage: 0.00K
Reported by: Newspaper

A fire at a care facility in Holmen was started by a lightning strike. The fire was trapped between the ceiling and roof with the building sustaining substantial water and fire damage. All the residents of the care facility were safely evacuated.

Thunderstorm Wind in GRANT, WISCONSIN
From 15-MAY-17 19:22:00 to 15-MAY-17 19:22:00 (CST-6)
Location: PLATTEVILLE
Magnitude: 50.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Broadcast Media

A semitrailer was tipped over in Platteville.

Thunderstorm Wind in GRANT, WISCONSIN
From 15-MAY-17 19:05:00 to 15-MAY-17 19:05:00 (CST-6)
Location: TENNYSON
Magnitude: 50.00 EG
Property damage: 20.00K
Crop damage: 0.00K
Reported by: Broadcast Media

The roof of a church was damaged in Tennyson.

Thunderstorm Wind in GRANT, WISCONSIN
From 15-MAY-17 18:46:00 to 15-MAY-17 18:46:00 (CST-6)
Location: CASSVILLE
Magnitude: 52.00 EG
Property damage: 2.00K
Crop damage: 0.00K
Reported by: Public

Trees were blown down in Cassville from an estimated 60 mph wind gust.