A cold front accompanying a strong shortwave afloft combined with moderate instability and vertical wind shear by late afternoon led to the development of numerous thunderstorms.  Many of these storms pulsed to produce large hail and damaging thunderstorm wind gusts.

Hail in DANE, WISCONSIN
From 02-OCT-06 18:30:00 to 02-OCT-06 18:30:00 (CST-6)
Location: MT HOREB
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in ROCK, WISCONSIN
From 02-OCT-06 19:05:00 to 02-OCT-06 19:05:00 (CST-6)
Location: DOWNTOWN JANESVILLE
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm Wind in GREEN, WISCONSIN
From 02-OCT-06 19:05:00 to 02-OCT-06 19:05:00 (CST-6)
Location: ALBANY
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Powerful thunderstorm winds knocked down large trees.

Thunderstorm Wind in KENOSHA, WISCONSIN
From 02-OCT-06 19:25:00 to 02-OCT-06 19:25:00 (CST-6)
Location: KENOSHA AIRPORT
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Powerful thunderstorm winds knocked down large trees.

Thunderstorm Wind in ROCK, WISCONSIN
From 02-OCT-06 19:30:00 to 02-OCT-06 19:30:00 (CST-6)
Location: FOOTVILLE
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Powerful thunderstorm winds knocked down large trees.

Hail in DODGE, WISCONSIN
From 02-OCT-06 17:02:00 to 02-OCT-06 17:02:00 (CST-6)
Location: CLYMAN
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in DANE, WISCONSIN
From 02-OCT-06 17:33:00 to 02-OCT-06 17:33:00 (CST-6)
Location: EAST BRISTOL
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in JEFFERSON, WISCONSIN
From 02-OCT-06 17:45:00 to 02-OCT-06 17:45:00 (CST-6)
Location: SULLIVAN
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Official NWS Observations

Hail in COLUMBIA, WISCONSIN
From 02-OCT-06 17:52:00 to 02-OCT-06 17:52:00 (CST-6)
Location: PARDEEVILLE
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in DANE, WISCONSIN
From 02-OCT-06 18:30:00 to 02-OCT-06 18:30:00 (CST-6)
Location: MT HOREB
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in RACINE, WISCONSIN
From 02-OCT-06 18:37:00 to 02-OCT-06 18:37:00 (CST-6)
Location: UNION GROVE
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm Wind in FOND DU LAC, WISCONSIN
From 02-OCT-06 16:45:00 to 02-OCT-06 16:45:00 (CST-6)
Location: FOND DU LAC
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Powerful thunderstorm winds knocked down large trees.

Thunderstorm Wind in WASHINGTON, WISCONSIN
From 02-OCT-06 17:10:00 to 02-OCT-06 17:10:00 (CST-6)
Location: WAYNE
Magnitude: 52.00 EG
Property damage: 25.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Powerful thunderstorm winds knocked down large trees and power-lines.

Thunderstorm Wind in COLUMBIA, WISCONSIN
From 02-OCT-06 16:06:00 to 02-OCT-06 16:06:00 (CST-6)
Location: FRIESLAND
Magnitude: 61.00 EG
Property damage: 3.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Powerful thunderstorm winds toppled trees and power-lines, and ripped off the roof of a tin shed.

Hail in GREEN LAKE, WISCONSIN
From 02-OCT-06 15:54:00 to 02-OCT-06 15:54:00 (CST-6)
Location: DALTON
Magnitude: 1.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Thunderstorm Wind in FOND DU LAC, WISCONSIN
From 02-OCT-06 16:10:00 to 02-OCT-06 16:10:00 (CST-6)
Location: ALTO
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Powerful thunderstorm winds knocked down large trees.

Hail in FOND DU LAC, WISCONSIN
From 02-OCT-06 16:30:00 to 02-OCT-06 16:30:00 (CST-6)
Location: OAKFIELD
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in MARQUETTE, WISCONSIN
From 02-OCT-06 16:35:00 to 02-OCT-06 16:35:00 (CST-6)
Location: MONTELLO
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Thunderstorm Wind in WALWORTH, WISCONSIN
From 02-OCT-06 17:33:00 to 02-OCT-06 17:33:00 (CST-6)
Location: LITTLE PRAIRIE
Magnitude: 56.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Employee

Powerful thunderstorm winds knocked down large trees.

Hail in OZAUKEE, WISCONSIN
From 02-OCT-06 17:40:00 to 02-OCT-06 17:40:00 (CST-6)
Location: BELGIUM
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Hail in DANE, WISCONSIN
From 02-OCT-06 17:41:00 to 02-OCT-06 17:41:00 (CST-6)
Location: MARSHALL
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in DANE, WISCONSIN
From 02-OCT-06 17:49:00 to 02-OCT-06 17:55:00 (CST-6)
Location: SUN PRAIRIE
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm Wind in DANE, WISCONSIN
From 02-OCT-06 17:59:00 to 02-OCT-06 17:59:00 (CST-6)
Location: MC FARLAND
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Powerful thunderstorm winds knocked down large trees.

Hail in MILWAUKEE, WISCONSIN
From 02-OCT-06 17:52:00 to 02-OCT-06 17:52:00 (CST-6)
Location: BROWN DEER
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Thunderstorm Wind in MILWAUKEE, WISCONSIN
From 02-OCT-06 17:50:00 to 02-OCT-06 17:50:00 (CST-6)
Location: WAUWATOSA
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Powerful thunderstorm winds knocked down large trees.

Hail in MARQUETTE, WISCONSIN
From 02-OCT-06 15:42:00 to 02-OCT-06 15:42:00 (CST-6)
Location: WESTFIELD
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in MARQUETTE, WISCONSIN
From 02-OCT-06 15:45:00 to 02-OCT-06 15:45:00 (CST-6)
Location: WESTFIELD
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in GREEN LAKE, WISCONSIN
From 02-OCT-06 15:52:00 to 02-OCT-06 15:52:00 (CST-6)
Location: KINGSTON
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in COLUMBIA, WISCONSIN
From 02-OCT-06 16:09:00 to 02-OCT-06 16:09:00 (CST-6)
Location: CAMBRIA
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in GREEN LAKE, WISCONSIN
From 02-OCT-06 16:17:00 to 02-OCT-06 16:17:00 (CST-6)
Location: KINGSTON
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Hail in DODGE, WISCONSIN
From 02-OCT-06 16:20:00 to 02-OCT-06 16:20:00 (CST-6)
Location: RANDOLPH
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in COLUMBIA, WISCONSIN
From 02-OCT-06 18:10:00 to 02-OCT-06 18:30:00 (CST-6)
Location: CAMBRIA
Magnitude: 1.25 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail fell for about 20 minutes and almost covered the ground white.  Hail size ranged from 0.75 to 1.25 inches.

Hail in JEFFERSON, WISCONSIN
From 02-OCT-06 18:12:00 to 02-OCT-06 18:12:00 (CST-6)
Location: PALMYRA
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Employee

Hail in DODGE, WISCONSIN
From 02-OCT-06 16:21:00 to 02-OCT-06 16:30:00 (CST-6)
Location: FOX LAKE
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail accumulations eventually covered the ground white.

Hail in DODGE, WISCONSIN
From 02-OCT-06 16:42:00 to 02-OCT-06 16:42:00 (CST-6)
Location: CLYMAN
Magnitude: 1.25 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm Wind in FOND DU LAC, WISCONSIN
From 02-OCT-06 16:55:00 to 02-OCT-06 16:55:00 (CST-6)
Location: ASHFORD
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Powerful thunderstorm winds knocked down large trees.

Thunderstorm Wind in WASHINGTON, WISCONSIN
From 02-OCT-06 17:30:00 to 02-OCT-06 17:30:00 (CST-6)
Location: HARTFORD
Magnitude: 56.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Powerful thunderstorm winds knocked down large trees.

Hail in SHEBOYGAN, WISCONSIN
From 02-OCT-06 17:10:00 to 02-OCT-06 17:10:00 (CST-6)
Location: BEECHWOOD
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Thunderstorm Wind in JEFFERSON, WISCONSIN
From 02-OCT-06 17:19:00 to 02-OCT-06 17:19:00 (CST-6)
Location: WATERTOWN
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Powerful thunderstorm winds knocked down large trees.

Hail in JEFFERSON, WISCONSIN
From 02-OCT-06 17:19:00 to 02-OCT-06 17:19:00 (CST-6)
Location: WATERTOWN
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in JEFFERSON, WISCONSIN
From 02-OCT-06 17:31:00 to 02-OCT-06 17:31:00 (CST-6)
Location: PALMYRA
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Employee

Thunderstorm Wind in JEFFERSON, WISCONSIN
From 02-OCT-06 17:33:00 to 02-OCT-06 17:33:00 (CST-6)
Location: PALMYRA
Magnitude: 56.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Employee

Powerful thunderstorm winds knocked down large trees.

Hail in WALWORTH, WISCONSIN
From 02-OCT-06 17:45:00 to 02-OCT-06 17:45:00 (CST-6)
Location: LITTLE PRAIRIE
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Employee

Thunderstorm Wind in ROCK, WISCONSIN
From 02-OCT-06 19:00:00 to 02-OCT-06 19:00:00 (CST-6)
Location: (JVL)ROCK CO ARPT JA
Magnitude: 61.00 EG
Property damage: 20.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Powerful thunderstorm winds knocked down large trees, and destroyed an aluminum shed.

Hail in MARQUETTE, WISCONSIN
From 02-OCT-06 15:13:00 to 02-OCT-06 15:13:00 (CST-6)
Location: WESTFIELD
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

Hail in MARQUETTE, WISCONSIN
From 02-OCT-06 15:39:00 to 02-OCT-06 15:39:00 (CST-6)
Location: WESTFIELD
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Thunderstorm Wind in WAUKESHA, WISCONSIN
From 02-OCT-06 17:40:00 to 02-OCT-06 17:40:00 (CST-6)
Location: DOWNTOWN WAUKESHA
Magnitude: 56.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Powerful thunderstorm winds knocked down large trees.

Funnel Cloud in JEFFERSON, WISCONSIN
From 02-OCT-06 17:15:00 to 02-OCT-06 17:15:00 (CST-6)
Location: LAKE MILLS
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Thunderstorm Wind in WASHINGTON, WISCONSIN
From 02-OCT-06 17:30:00 to 02-OCT-06 17:30:00 (CST-6)
Location: WEST BEND
Magnitude: 56.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Powerful thunderstorm winds knocked down large trees.

Thunderstorm Wind in WAUKESHA, WISCONSIN
From 02-OCT-06 17:41:00 to 02-OCT-06 17:41:00 (CST-6)
Location: NEW BERLIN
Magnitude: 51.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Powerful thunderstorm winds knocked down large trees.

Hail in JEFFERSON, WISCONSIN
From 02-OCT-06 16:40:00 to 02-OCT-06 16:40:00 (CST-6)
Location: FT ATKINSON
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Hail in ROCK, WISCONSIN
From 02-OCT-06 16:58:00 to 02-OCT-06 16:58:00 (CST-6)
Location: MILTON
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Thunderstorm Wind in COLUMBIA, WISCONSIN
From 02-OCT-06 17:02:00 to 02-OCT-06 17:02:00 (CST-6)
Location: PARDEEVILLE
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Powerful thunderstorm winds knocked down large trees.

Thunderstorm Wind in COLUMBIA, WISCONSIN
From 02-OCT-06 17:02:00 to 02-OCT-06 17:02:00 (CST-6)
Location: PARDEEVILLE
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Powerful thunderstorm winds knocked down large trees.

Thunderstorm Wind in COLUMBIA, WISCONSIN
From 02-OCT-06 17:02:00 to 02-OCT-06 17:02:00 (CST-6)
Location: PARDEEVILLE
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Powerful thunderstorm winds knocked down large trees.

Thunderstorm Wind in DODGE, WISCONSIN
From 02-OCT-06 17:15:00 to 02-OCT-06 17:15:00 (CST-6)
Location: THERESA
Magnitude: 56.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Powerful thunderstorm winds knocked down large trees.

Hail in WAUKESHA, WISCONSIN
From 02-OCT-06 18:16:00 to 02-OCT-06 18:16:00 (CST-6)
Location: EAGLE
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in WALWORTH, WISCONSIN
From 02-OCT-06 18:14:00 to 02-OCT-06 18:14:00 (CST-6)
Location: LA GRANGE
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in KENOSHA, WISCONSIN
From 02-OCT-06 18:25:00 to 02-OCT-06 18:25:00 (CST-6)
Location: BRISTOL
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public