Thunderstorms that developed over northern Minnesota along a cold front, advanced into Wisconsin during the evening of August 6th. The storms became oriented into a solid line as they moved across parts of western and central Wisconsin and produced large hail and damaging winds. The largest hail reported was half dollar sized in Nelson (Buffalo County). The winds from the storms blew the roof off a pole barn near Withee (Clark County) and lifted the roof off a county building, damaged crops and broke windows just outside of Sparta (Monroe County).

Thunderstorm Wind in CLARK, WISCONSIN
From 06-AUG-13 21:43:00 to 06-AUG-13 21:43:00 (CST-6)
Location: OWEN
Magnitude: 50.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Trees were blown down west of Curtiss along County Road P.

Thunderstorm Wind in CLARK, WISCONSIN
From 06-AUG-13 22:16:00 to 06-AUG-13 22:16:00 (CST-6)
Location: SHERWOOD
Magnitude: 50.00 EG
Property damage: 3.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Numerous trees were blown down in Sherwood Township along County Road Z.

Thunderstorm Wind in JACKSON, WISCONSIN
From 06-AUG-13 21:57:00 to 06-AUG-13 21:57:00 (CST-6)
Location: VAUDREUIL
Magnitude: 50.00 EG
Property damage: 3.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Numerous trees were blown down in and around Black River Falls.

Thunderstorm Wind in JUNEAU, WISCONSIN
From 06-AUG-13 22:25:00 to 06-AUG-13 22:25:00 (CST-6)
Location: MEADOW VLY
Magnitude: 60.00 EG
Property damage: 3.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Numerous trees were blown down in the Necedah National Wildlife Refuge.

Hail in BUFFALO, WISCONSIN
From 06-AUG-13 21:10:00 to 06-AUG-13 21:10:00 (CST-6)
Location: NELSON
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Thunderstorm Wind in TAYLOR, WISCONSIN
From 06-AUG-13 21:19:00 to 06-AUG-13 21:19:00 (CST-6)
Location: GILMAN
Magnitude: 50.00 EG
Property damage: 2.00K
Crop damage: 0.00K
Reported by: Public

Thunderstorms winds blew down some power lines and flattened corn near Gilman.

Thunderstorm Wind in CLARK, WISCONSIN
From 06-AUG-13 21:19:00 to 06-AUG-13 21:24:00 (CST-6)
Location: JUNCTION
Magnitude: 50.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Trees and power lines were blown down across Thorp Township, including the town of Thorp where the power was knocked out on the west side of town.

Thunderstorm Wind in CLARK, WISCONSIN
From 06-AUG-13 21:38:00 to 06-AUG-13 21:38:00 (CST-6)
Location: WITHEE
Magnitude: 50.00 EG
Property damage: 40.00K
Crop damage: 0.00K
Reported by: Emergency Manager

The roof was blown off a pole barn and silo near Withee. Several trees were also blown down with two vehicles damaged by the falling trees.

Thunderstorm Wind in ADAMS, WISCONSIN
From 06-AUG-13 22:42:00 to 06-AUG-13 22:42:00 (CST-6)
Location: NEW ROME
Magnitude: 60.00 EG
Property damage: 2.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Several trees were blown down in New Rome.

Hail in MONROE, WISCONSIN
From 06-AUG-13 22:43:00 to 06-AUG-13 22:43:00 (CST-6)
Location: SPARTA
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Thunderstorm Wind in MONROE, WISCONSIN
From 06-AUG-13 22:44:00 to 06-AUG-13 22:44:00 (CST-6)
Location: ANGELO
Magnitude: 52.00 EG
Property damage: 20.00K
Crop damage: 0.00K
Reported by: Law Enforcement

The roof was lifted off and windows blown out of county office buildings just north of Sparta. Crops were also flattened in the same area and numerous trees and power lines were blown down on the north side of Sparta.

Thunderstorm Wind in JACKSON, WISCONSIN
From 06-AUG-13 21:59:00 to 06-AUG-13 21:59:00 (CST-6)
Location: WINNEBAGO MISSION
Magnitude: 55.00 EG
Property damage: 2.00K
Crop damage: 0.00K
Reported by: Newspaper

Trees were blown down at the Ho-Chunk Nation's Andrew Blackhawk Memorial Pow-Wow Grounds northeast of Black River Falls.

Thunderstorm Wind in CLARK, WISCONSIN
From 06-AUG-13 21:48:00 to 06-AUG-13 21:48:00 (CST-6)
Location: COLBY
Magnitude: 50.00 EG
Property damage: 2.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A power pole was snapped by strong winds that brought power lines down in Colby.

Hail in TREMPEALEAU, WISCONSIN
From 06-AUG-13 20:52:00 to 06-AUG-13 20:52:00 (CST-6)
Location: ELEVA
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Quarter sized hail was reported in Eleva.

Thunderstorm Wind in TREMPEALEAU, WISCONSIN
From 06-AUG-13 20:52:00 to 06-AUG-13 20:52:00 (CST-6)
Location: ELEVA
Magnitude: 50.00 EG
Property damage: 3.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Trees and power lines were blown down in Eleva.

Hail in TAYLOR, WISCONSIN
From 06-AUG-13 20:59:00 to 06-AUG-13 20:59:00 (CST-6)
Location: WHITTLESEY
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Hail in BUFFALO, WISCONSIN
From 06-AUG-13 21:07:00 to 06-AUG-13 21:07:00 (CST-6)
Location: NELSON
Magnitude: 1.25 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Half dollar sized hail fell in Nelson.

Hail in BUFFALO, WISCONSIN
From 06-AUG-13 21:11:00 to 06-AUG-13 21:11:00 (CST-6)
Location: NELSON
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public