Scattered severe thunderstorms, with large hail and damaging, straight-line, down-burst winds, affected parts of south-central and southeast Wisconsin. There were many reports of toppled trees, and hail stones reached golf-ball size (1.75 inches in diameter) southeast of Portage (Columbia Co.).  One person was injured between Reedsburg and Baraboo when a wind-toppled tree fell on their car.  Torrential rains accompanied some of the storms, resulting in urban and small stream flooding in and around Randolph and Fox Lake in northwest Dodge County.  Three-fourths of an inch of rain fell in 25 minutes in Randolph and up to 2 inches fell around Fox Lake.  Up to 1.80 inches of rain fell in a short period of time in the Baraboo to Lake Delton area of Sauk County, resulting in urban and small stream flooding in that county.  Water depths affected roads in northeast Sauk and northwest Dodge Counties where it was reported to be 6 inches to 2 feet deep.  Lightning-initiated fires destroyed two barns on separate farms near Mifflan (Iowa Co.).Synoptically, an upper-level, short-wave trough moved through the Great Lakes region. Instability along the trough was sufficient to allow thunderstorm development. The thunderstorm cells moved southeastward.

Hail in WAUKESHA, WISCONSIN
From 18-JUN-01 01:00:00 to 18-JUN-01 01:00:00 (CST)
Location: SUSSEX
Magnitude: 1.00 
Reported by: LAW ENFORCEMENT

Hail in MILWAUKEE, WISCONSIN
From 18-JUN-01 01:15:00 to 18-JUN-01 01:15:00 (CST)
Location: WEST ALLIS
Magnitude: 0.88 
Reported by: AMATEUR RADIO

Lightning in IOWA, WISCONSIN
From 17-JUN-01 19:02:00 to 17-JUN-01 19:02:00 (CST)
Location: MIFFLAN
Property damage: 100K
Reported by: EMERGENCY MANAGER

Lightning in IOWA, WISCONSIN
From 17-JUN-01 19:10:00 to 17-JUN-01 19:10:00 (CST)
Location: MIFFLAN
Property damage: 100K
Reported by: EMERGENCY MANAGER

Flood in SAUK, WISCONSIN
From 17-JUN-01 20:40:00 to 17-JUN-01 23:00:00 (CST)
Location: BARABOO
Reported by: LAW ENFORCEMENT

Hail in SAUK, WISCONSIN
From 17-JUN-01 20:50:00 to 17-JUN-01 20:50:00 (CST)
Location: BARABOO
Magnitude: 1.00 
Reported by: LAW ENFORCEMENT

Thunderstorm Wind in DODGE, WISCONSIN
From 17-JUN-01 23:50:00 to 17-JUN-01 23:50:00 (CST)
Location: RANDOLPH
Magnitude: 52 E
Reported by: LAW ENFORCEMENT

Hail in COLUMBIA, WISCONSIN
From 17-JUN-01 23:21:00 to 17-JUN-01 23:21:00 (CST)
Location: PARDEEVILLE
Magnitude: 1.00 
Reported by: LAW ENFORCEMENT

Thunderstorm Wind in SAUK, WISCONSIN
From 17-JUN-01 20:57:00 to 17-JUN-01 21:05:00 (CST)
Location: REEDSBURG
Magnitude: 54 M
Reported by: LAW ENFORCEMENT

Flood in COLUMBIA, WISCONSIN
From 17-JUN-01 20:45:00 to 17-JUN-01 23:00:00 (CST)
Location: PORTAGE
Reported by: LAW ENFORCEMENT

Hail in SAUK, WISCONSIN
From 17-JUN-01 20:30:00 to 17-JUN-01 20:35:00 (CST)
Location: BARABOO
Magnitude: 1.00 
Reported by: LAW ENFORCEMENT

Hail in DODGE, WISCONSIN
From 18-JUN-01 00:09:00 to 18-JUN-01 00:15:00 (CST)
Location: BEAVER DAM
Magnitude: 0.75 
Reported by: LAW ENFORCEMENT

Flood in DODGE, WISCONSIN
From 18-JUN-01 00:00:00 to 18-JUN-01 03:00:00 (CST)
Location: RANDOLPH
Reported by: LAW ENFORCEMENT

Hail in COLUMBIA, WISCONSIN
From 17-JUN-01 22:28:00 to 17-JUN-01 22:28:00 (CST)
Location: PORTAGE
Magnitude: 1.75 
Reported by: LAW ENFORCEMENT

Thunderstorm Wind in WASHINGTON, WISCONSIN
From 18-JUN-01 01:00:00 to 18-JUN-01 01:00:00 (CST)
Location: SLINGER
Magnitude: 52 E
Reported by: LAW ENFORCEMENT

Hail in WAUKESHA, WISCONSIN
From 18-JUN-01 00:47:00 to 18-JUN-01 00:47:00 (CST)
Location: STONEBANK
Magnitude: 0.88 
Reported by: LAW ENFORCEMENT