Thunderstorms that developed ahead of a weak cold front and an upper level disturbance produced wind damage, and isolated large hail, in central Wisconsin.  Winds from the storms snapped and uprooted trees, downed power lines, and caused minor damage to two buildings.

Hail in PORTAGE, WISCONSIN
From 04-SEP-12 18:18:00 to 04-SEP-12 18:18:00 (CST-6)
Location: JUNCTION CITY
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorms produced penny size hail southwest of Junction City.

Thunderstorm Wind in WOOD, WISCONSIN
From 04-SEP-12 17:45:00 to 04-SEP-12 17:45:00 (CST-6)
Location: MARSHFIELD
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Thunderstorm wind gusts to 60 mph downed trees, some as large as 8 inches in diameter, west of Marshfield.

Thunderstorm Wind in MARATHON, WISCONSIN
From 04-SEP-12 17:50:00 to 04-SEP-12 17:50:00 (CST-6)
Location: ROZELLVILLE
Magnitude: 56.00 EG
Property damage: 0.50K
Crop damage: 0.00K
Reported by: Law Enforcement

Thunderstorm winds blew in the glass window at a gas station and downed power lines south of Stratford.

Thunderstorm Wind in MARATHON, WISCONSIN
From 04-SEP-12 18:30:00 to 04-SEP-12 18:30:00 (CST-6)
Location: SCHOFIELD
Magnitude: 52.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm winds downed a large tree that fell onto and damaged a deck.

Thunderstorm Wind in MARATHON, WISCONSIN
From 04-SEP-12 18:30:00 to 04-SEP-12 18:30:00 (CST-6)
Location: SCHOFIELD
Magnitude: 70.00 EG
Property damage: 0.50K
Crop damage: 0.00K
Reported by: Law Enforcement

A thunderstorm wind gust, estimated at 80 mph, bent a highway sign to the ground.  The sign, at the STH 29 and U.S. Highway 51 interchange, was on steel posts that bent at the base.

Thunderstorm Wind in MARATHON, WISCONSIN
From 04-SEP-12 18:35:00 to 04-SEP-12 18:35:00 (CST-6)
Location: (CWA)CEN WI ARPT MOS
Magnitude: 61.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm winds snapped and uprooted several trees in the Town of Kronenwetter.

Thunderstorm Wind in MARATHON, WISCONSIN
From 04-SEP-12 18:35:00 to 04-SEP-12 18:35:00 (CST-6)
Location: (CWA)CEN WI ARPT MOS
Magnitude: 61.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm winds, with gusts of 60 to 70 mph, snapped two railroad crossing gates, blew construction barrels across roads, and snapped several trees along Old Highway 51 between Kowalski Road and Exit 181.

Thunderstorm Wind in WAUPACA, WISCONSIN
From 04-SEP-12 19:08:00 to 04-SEP-12 19:08:00 (CST-6)
Location: BIG FALLS
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Thunderstorm winds downed a few trees and many branches just north of Big Falls.

Thunderstorm Wind in MARATHON, WISCONSIN
From 04-SEP-12 17:30:00 to 04-SEP-12 17:30:00 (CST-6)
Location: SPENCER
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

Thunderstorms produced sustained winds estimated near 40 mph with gusts to 60 mph in Spencer.

Thunderstorm Wind in PORTAGE, WISCONSIN
From 04-SEP-12 18:35:00 to 04-SEP-12 18:35:00 (CST-6)
Location: PLOVER
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorms produced wind gusts estimated at 60 mph in Plover.

Thunderstorm Wind in WAUPACA, WISCONSIN
From 04-SEP-12 19:27:00 to 04-SEP-12 19:27:00 (CST-6)
Location: CLINTONVILLE
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorms produced wind gusts estimated at 60 mph in Clintonville.

Thunderstorm Wind in MARATHON, WISCONSIN
From 04-SEP-12 18:32:00 to 04-SEP-12 18:32:00 (CST-6)
Location: SCHOFIELD
Magnitude: 70.00 EG
Property damage: 15.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Thunderstorm winds blew off part of a roof of a metal building system near Rothschild.