Scattered clusters of severe storms developed across south-central and southeast Wisconsin during the pre-dawn hours.  Synoptically, a warm front moved slowly north through Iowa and northern Illinois, while an upper-level short-wave moved east.  A low-level jet pumped moisture into southern Wisconsin, while surface dewpoints peaked in the mid-60s along the warm front.

Hail in DANE, WISCONSIN
From 04-OCT-06 04:30:00 to 04-OCT-06 04:30:00 (CST-6)
Location: EAST BRISTOL
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Thunderstorm Wind in WAUKESHA, WISCONSIN
From 04-OCT-06 04:25:00 to 04-OCT-06 04:25:00 (CST-6)
Location: HARTLAND
Magnitude: 50.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Large trees were toppled by powerful thunderstorm winds.

Lightning in WASHINGTON, WISCONSIN
From 04-OCT-06 05:15:00 to 04-OCT-06 05:15:00 (CST-6)
Location: WEST BEND
Property damage: 50.00K
Crop damage: 0.00K
Reported by: Newspaper

Lightning struck a home's roof, resulting in an attic fire.

Hail in COLUMBIA, WISCONSIN
From 04-OCT-06 03:55:00 to 04-OCT-06 03:59:00 (CST-6)
Location: PORTAGE
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Hail in COLUMBIA, WISCONSIN
From 04-OCT-06 03:59:00 to 04-OCT-06 03:59:00 (CST-6)
Location: POYNETTE
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Hail in COLUMBIA, WISCONSIN
From 04-OCT-06 04:07:00 to 04-OCT-06 04:07:00 (CST-6)
Location: WYOCENA
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Hail in COLUMBIA, WISCONSIN
From 04-OCT-06 04:03:00 to 04-OCT-06 04:03:00 (CST-6)
Location: POYNETTE
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Hail in MILWAUKEE, WISCONSIN
From 04-OCT-06 03:55:00 to 04-OCT-06 03:55:00 (CST-6)
Location: WEST ALLIS
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Hail in SAUK, WISCONSIN
From 04-OCT-06 03:25:00 to 04-OCT-06 03:30:00 (CST-6)
Location: REEDSBURG
Magnitude: 1.75 
Property damage: 900.00K
Crop damage: 0.00K
Reported by: Newspaper

A hailstorm dumped hail stones with diameters from 1.00 to 1.75 inch from Reedsburg to Baraboo, with most of the activity in the Reedsburg area. Hundreds of vehicles were damaged by the hail stones. Three insurance companies reported 375 claims totaling about $900,000.

Thunderstorm Wind in GREEN, WISCONSIN
From 04-OCT-06 03:30:00 to 04-OCT-06 03:30:00 (CST-6)
Location: MONROE
Magnitude: 56.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Large trees were toppled by powerful thunderstorm winds.

Hail in FOND DU LAC, WISCONSIN
From 04-OCT-06 03:33:00 to 04-OCT-06 03:33:00 (CST-6)
Location: FOND DU LAC
Magnitude: 1.75 
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Several vehicles were dented by the large hail.

Hail in MILWAUKEE, WISCONSIN
From 04-OCT-06 04:05:00 to 04-OCT-06 04:05:00 (CST-6)
Location: DOWNTOWN MILWAUKEE
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Hail in DODGE, WISCONSIN
From 04-OCT-06 04:25:00 to 04-OCT-06 04:25:00 (CST-6)
Location: REESEVILLE
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Hail in DANE, WISCONSIN
From 04-OCT-06 04:05:00 to 04-OCT-06 04:20:00 (CST-6)
Location: MARSHALL
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public