A weak upper level disturbance interacted with a very unstable air mass to create scattered severe thunderstorms across central and east-central Wisconsin.  Wind gusts over 65 mph occurred with the strongest storms, knocking down numerous trees, power lines and two large power poles.

Thunderstorm Wind in PORTAGE, WISCONSIN
From 18-JUL-11 07:05:00 to 18-JUL-11 07:05:00 (CST-6)
Location: PLOVER
Magnitude: 52.00 EG
Crop damage: 0.00K
Reported by: Trained Spotter

A trained spotter reported that a few trees were blown down in Plover.

Thunderstorm Wind in WOOD, WISCONSIN
From 18-JUL-11 06:50:00 to 18-JUL-11 06:50:00 (CST-6)
Location: WISCONSIN RAPIDS
Magnitude: 50.00 EG
Crop damage: 0.00K
Reported by: Public

The public reported a couple of trees were knocked down on the northwest side of Wisconsin Rapids.

Thunderstorm Wind in WAUPACA, WISCONSIN
From 18-JUL-11 07:43:00 to 18-JUL-11 07:43:00 (CST-6)
Location: LIND CENTER
Magnitude: 60.00 EG
Crop damage: 0.00K
Reported by: Law Enforcement

Law enforcement reported numerous trees were blown down on County Highways K and E, south of the city of Waupaca.

Thunderstorm Wind in WINNEBAGO, WISCONSIN
From 18-JUL-11 08:18:00 to 18-JUL-11 08:18:00 (CST-6)
Location: MENASHA
Magnitude: 65.00 EG
Property damage: 50.00K
Crop damage: 0.00K
Reported by: Public

A  building on the west side of Menasha was damaged by winds estimated at 75 mph.  A car was flipped near Highways 76 and 10.  Several camper trailers were also tipped over at a nearby campground, heavily damaging one of them.

Thunderstorm Wind in OUTAGAMIE, WISCONSIN
From 18-JUL-11 08:25:00 to 18-JUL-11 08:25:00 (CST-6)
Location: APPLETON
Magnitude: 60.00 EG
Crop damage: 0.00K
Reported by: Law Enforcement

Power lines and a couple trees were blown down near Ballard Road and County Road JJ in Appleton.

Thunderstorm Wind in WAUPACA, WISCONSIN
From 18-JUL-11 07:45:00 to 18-JUL-11 07:45:00 (CST-6)
Location: RURAL
Magnitude: 52.00 EG
Crop damage: 0.00K
Reported by: Trained Spotter

A tree was blown down on a tent at the Twin Lakes Campground.  Large branches were also snapped.  No injuries were reported.

Thunderstorm Wind in BROWN, WISCONSIN
From 18-JUL-11 08:30:00 to 18-JUL-11 08:35:00 (CST-6)
Location: GREEN BAY
Magnitude: 52.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Public

The public reported several power lines were knocked down on the south side of Green Bay and in De Pere.  A tree fell on to a house in the village of Ashwaubenon, causing some damage to the roof.

Thunderstorm Wind in PORTAGE, WISCONSIN
From 18-JUL-11 07:15:00 to 18-JUL-11 07:15:00 (CST-6)
Location: PARK RIDGE
Magnitude: 52.00 EG
Property damage: 15.00K
Crop damage: 0.00K
Reported by: Public

Thunderstorm winds knocked a two foot diameter tree down onto a house, damaging a part of the roof and gutters.

Thunderstorm Wind in PORTAGE, WISCONSIN
From 18-JUL-11 07:22:00 to 18-JUL-11 07:22:00 (CST-6)
Location: PLOVER
Magnitude: 61.00 MG
Crop damage: 0.00K
Reported by: COOP Observer

A 70 mph wind gust was recorded in Plover.  The strong wind knocked over several trees in the area.  There was also a brief period of pea-sized hail.

Thunderstorm Wind in OUTAGAMIE, WISCONSIN
From 18-JUL-11 08:20:00 to 18-JUL-11 08:20:00 (CST-6)
Location: MACKVILLE
Magnitude: 56.00 EG
Crop damage: 0.00K
Reported by: Newspaper

Thunderstorm winds pushed two large power poles over and downed tree limbs and power lines on State Highway 47 between Wege Road and Mackville Road.