Thunderstorms formed along a frontal boundary as it moved across the area.  The strongest storms produced large hail at several locations and wind damage.

Thunderstorm Wind in BROWN, WISCONSIN
From 25-APR-08 17:25:00 to 25-APR-08 17:25:00 (CST-6)
Location: GREEN BAY
Magnitude: 52.00 EG
Reported by: Law Enforcement

Thunderstorm winds uprooted trees at the intersection of Thorndale Street and Frank Street in Green Bay.

Hail in LINCOLN, WISCONSIN
From 25-APR-08 17:44:00 to 25-APR-08 17:44:00 (CST-6)
Location: IRMA
Magnitude: 1.75 
Reported by: Law Enforcement

Golf ball size hail fell at Highway 51 and county road K near Irma.

Hail in LINCOLN, WISCONSIN
From 25-APR-08 17:50:00 to 25-APR-08 17:50:00 (CST-6)
Location: KINGS
Magnitude: 4.00 
Reported by: Amateur Radio

Softball size hail fell at Highway 86 and county road D near Tomahawk.

Thunderstorm Wind in KEWAUNEE, WISCONSIN
From 25-APR-08 17:50:00 to 25-APR-08 17:50:00 (CST-6)
Location: THIRTY DAEMS
Magnitude: 50.00 EG
Reported by: Law Enforcement

Thunderstorm winds knocked down trees at the intersection of county roads A and K, north of Luxemburg.

Hail in LINCOLN, WISCONSIN
From 25-APR-08 17:54:00 to 25-APR-08 17:54:00 (CST-6)
Location: HEAFFORD JCT
Magnitude: 1.75 
Reported by: Amateur Radio

Large hail fell north of the intersection of Highway 8 and county road L.

Thunderstorm Wind in KEWAUNEE, WISCONSIN
From 25-APR-08 18:00:00 to 25-APR-08 18:00:00 (CST-6)
Location: PILSEN
Magnitude: 50.00 EG
Reported by: Law Enforcement

Thunderstorm winds knocked down trees on county road V, south of Luxemburg.

Hail in LINCOLN, WISCONSIN
From 25-APR-08 18:02:00 to 25-APR-08 18:02:00 (CST-6)
Location: HEAFFORD JCT
Magnitude: 1.75 
Reported by: Trained Spotter

Golf ball size hail fell on county road L north of Heafford Junction.

Hail in ONEIDA, WISCONSIN
From 25-APR-08 18:06:00 to 25-APR-08 18:07:00 (CST-6)
Location: THREE LAKES
Magnitude: 1.25 
Reported by: Trained Spotter

Large hail fell in downtown Three Lakes and penny size hail covered a parking lot.

Hail in VILAS, WISCONSIN
From 25-APR-08 18:15:00 to 25-APR-08 18:15:00 (CST-6)
Location: EAGLE RIVER
Magnitude: 1.75 
Reported by: Law Enforcement

Hail in PORTAGE, WISCONSIN
From 25-APR-08 16:09:00 to 25-APR-08 16:09:00 (CST-6)
Location: STEVENS PT
Magnitude: 0.88 
Reported by: Trained Spotter

Hail in WOOD, WISCONSIN
From 25-APR-08 16:16:00 to 25-APR-08 16:16:00 (CST-6)
Location: PORT EDWARDS
Magnitude: 1.00 
Reported by: Trained Spotter

Hail in WOOD, WISCONSIN
From 25-APR-08 16:32:00 to 25-APR-08 16:32:00 (CST-6)
Location: VESPER
Magnitude: 0.75 
Reported by: Law Enforcement

Hail in MARATHON, WISCONSIN
From 25-APR-08 16:53:00 to 25-APR-08 16:53:00 (CST-6)
Location: HATLEY
Magnitude: 1.00 
Reported by: Trained Spotter

Hail in WINNEBAGO, WISCONSIN
From 25-APR-08 16:53:00 to 25-APR-08 16:53:00 (CST-6)
Location: WINCHESTER
Magnitude: 1.00 
Reported by: Law Enforcement

Thunderstorm Wind in OUTAGAMIE, WISCONSIN
From 25-APR-08 17:03:00 to 25-APR-08 17:03:00 (CST-6)
Location: GREENVILLE
Magnitude: 50.00 EG
Reported by: Law Enforcement

Thunderstorm winds downed trees at the intersection of Highway 15 and Highway 41.

Hail in MARATHON, WISCONSIN
From 25-APR-08 17:07:00 to 25-APR-08 17:07:00 (CST-6)
Location: MARATHON
Magnitude: 2.75 
Property damage: 10.00K
Reported by: Public

Baseball size hail caused damage to several vehicles in Marathon City.

Hail in VILAS, WISCONSIN
From 25-APR-08 20:18:00 to 25-APR-08 20:18:00 (CST-6)
Location: MANITOWISH WATERS
Magnitude: 1.75 
Reported by: County Official

Thunderstorm Wind in OUTAGAMIE, WISCONSIN
From 25-APR-08 17:05:00 to 25-APR-08 17:05:00 (CST-6)
Location: (ATW)APPLETON ARPT
Magnitude: 52.00 MG
Reported by: AWOS

Outagamie County Regional Airport control tower personnel reported wind gusts to 60 mph at the airport.

Hail in ONEIDA, WISCONSIN
From 25-APR-08 18:15:00 to 25-APR-08 18:15:00 (CST-6)
Location: THREE LAKES
Magnitude: 0.88 
Reported by: Amateur Radio

Hail in ONEIDA, WISCONSIN
From 25-APR-08 18:19:00 to 25-APR-08 18:19:00 (CST-6)
Location: HARSHAW
Magnitude: 1.75 
Reported by: Public

Hail in ONEIDA, WISCONSIN
From 25-APR-08 18:20:00 to 25-APR-08 18:20:00 (CST-6)
Location: LAKE TOMAHAWK
Magnitude: 1.75 
Reported by: Trained Spotter

Hail in ONEIDA, WISCONSIN
From 25-APR-08 18:05:00 to 25-APR-08 18:05:00 (CST-6)
Location: SUGAR CAMP
Magnitude: 1.75 
Reported by: Law Enforcement

Golf ball size hail fell at Sugar Camp.

Thunderstorm Wind in OUTAGAMIE, WISCONSIN
From 25-APR-08 17:01:00 to 25-APR-08 17:03:00 (CST-6)
Location: APPLETON
Magnitude: 50.00 EG
Reported by: Law Enforcement

High winds from passing thunderstorms knocked down trees in Appleton.