A cold front that moved from northwest to southeast across Wisconsin triggered thunderstorms in unstable air ahead of it.  The southeast-moving storms produced copious amounts of large hail, up to golf ball size, high winds that downed trees and power lines, and a funnel cloud.

Hail in SHAWANO, WISCONSIN
From 20-JUN-07 16:13:00 to 20-JUN-07 16:13:00 (CST-6)
Location: BOWLER
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Hail in MARATHON, WISCONSIN
From 20-JUN-07 16:24:00 to 20-JUN-07 16:24:00 (CST-6)
Location: ATHENS
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Hail in FLORENCE, WISCONSIN
From 20-JUN-07 14:30:00 to 20-JUN-07 14:30:00 (CST-6)
Location: SPREAD EAGLE
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in MARINETTE, WISCONSIN
From 20-JUN-07 15:30:00 to 20-JUN-07 15:30:00 (CST-6)
Location: CRIVITZ
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

At intersection of Highways A and W.

Hail in MENOMINEE (C), WISCONSIN
From 20-JUN-07 19:45:00 to 20-JUN-07 19:45:00 (CST-6)
Location: NEOPIT
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Thunderstorm Wind in OCONTO, WISCONSIN
From 20-JUN-07 20:30:00 to 20-JUN-07 20:30:00 (CST-6)
Location: GILLETT
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Wind downed 18 inch diameter oak tree.

Thunderstorm Wind in OCONTO, WISCONSIN
From 20-JUN-07 20:17:00 to 20-JUN-07 20:17:00 (CST-6)
Location: GILLETT
Magnitude: 61.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

Trees were knocked down by 70 mph winds, estimated by fire department personnel.

Hail in MARATHON, WISCONSIN
From 20-JUN-07 22:50:00 to 20-JUN-07 22:50:00 (CST-6)
Location: WAUSAU
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm Wind in VILAS, WISCONSIN
From 20-JUN-07 14:35:00 to 20-JUN-07 14:35:00 (CST-6)
Location: EAGLE RIVER
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Power lines down.

Thunderstorm Wind in MARINETTE, WISCONSIN
From 20-JUN-07 16:00:00 to 20-JUN-07 16:00:00 (CST-6)
Location: WAUSAUKEE
Magnitude: 70.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Numerous trees and power lines down near the intersection of Highways 180 and XX.  Trees fell on a house and garage, causing damage.

Thunderstorm Wind in DOOR, WISCONSIN
From 20-JUN-07 16:29:00 to 20-JUN-07 16:29:00 (CST-6)
Location: SISTER BAY
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Several trees were uprooted.

Thunderstorm Wind in DOOR, WISCONSIN
From 20-JUN-07 17:34:00 to 20-JUN-07 17:34:00 (CST-6)
Location: STURGEON BAY
Magnitude: 60.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Tree uprooted and landed on wires.

Thunderstorm Wind in LINCOLN, WISCONSIN
From 20-JUN-07 18:52:00 to 20-JUN-07 19:00:00 (CST-6)
Location: MERRILL
Magnitude: 61.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Many trees and power lines down.

Thunderstorm Wind in LANGLADE, WISCONSIN
From 20-JUN-07 19:25:00 to 20-JUN-07 19:25:00 (CST-6)
Location: ANTIGO
Magnitude: 70.00 EG
Crop damage: 0.00K
Reported by: Law Enforcement

Trees were blown down and a roof was torn from a shed.

Hail in LINCOLN, WISCONSIN
From 20-JUN-07 19:08:00 to 20-JUN-07 19:08:00 (CST-6)
Location: MERRILL
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in LANGLADE, WISCONSIN
From 20-JUN-07 19:26:00 to 20-JUN-07 19:26:00 (CST-6)
Location: ANTIGO
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in LINCOLN, WISCONSIN
From 20-JUN-07 19:32:00 to 20-JUN-07 19:32:00 (CST-6)
Location: MERRILL
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Hail in BROWN, WISCONSIN
From 20-JUN-07 19:39:00 to 20-JUN-07 19:39:00 (CST-6)
Location: SUAMICO
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in MARATHON, WISCONSIN
From 20-JUN-07 16:38:00 to 20-JUN-07 16:40:00 (CST-6)
Location: RIB FALLS
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Hail in LINCOLN, WISCONSIN
From 20-JUN-07 19:44:00 to 20-JUN-07 19:44:00 (CST-6)
Location: MERRILL
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in MARATHON, WISCONSIN
From 20-JUN-07 19:45:00 to 20-JUN-07 19:45:00 (CST-6)
Location: WAUSAU
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in SHAWANO, WISCONSIN
From 20-JUN-07 20:10:00 to 20-JUN-07 20:10:00 (CST-6)
Location: PULCIFER
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in OCONTO, WISCONSIN
From 20-JUN-07 20:17:00 to 20-JUN-07 20:17:00 (CST-6)
Location: GILLETT
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

Hail in MARATHON, WISCONSIN
From 20-JUN-07 16:54:00 to 20-JUN-07 16:56:00 (CST-6)
Location: MARATHON
Magnitude: 1.25 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Hail in MARINETTE, WISCONSIN
From 20-JUN-07 16:59:00 to 20-JUN-07 16:59:00 (CST-6)
Location: PESHTIGO
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

At Highway 64 and Bagley Road.

Hail in MARATHON, WISCONSIN
From 20-JUN-07 17:07:00 to 20-JUN-07 17:07:00 (CST-6)
Location: ROTHSCHILD
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in MARATHON, WISCONSIN
From 20-JUN-07 17:15:00 to 20-JUN-07 17:15:00 (CST-6)
Location: MARATHON
Magnitude: 1.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Hail in DOOR, WISCONSIN
From 20-JUN-07 17:35:00 to 20-JUN-07 17:37:00 (CST-6)
Location: STURGEON BAY
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Hail in WAUPACA, WISCONSIN
From 20-JUN-07 18:05:00 to 20-JUN-07 18:05:00 (CST-6)
Location: NORTHLAND
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Hail in LINCOLN, WISCONSIN
From 20-JUN-07 18:49:00 to 20-JUN-07 18:49:00 (CST-6)
Location: MERRILL
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in LINCOLN, WISCONSIN
From 20-JUN-07 15:20:00 to 20-JUN-07 15:20:00 (CST-6)
Location: DOERING
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Funnel Cloud in MARATHON, WISCONSIN
From 20-JUN-07 18:20:00 to 20-JUN-07 18:20:00 (CST-6)
Location: ATHENS
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Thin rope funnel.

Hail in FOREST, WISCONSIN
From 20-JUN-07 14:15:00 to 20-JUN-07 14:15:00 (CST-6)
Location: ALVIN
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

Hail in LINCOLN, WISCONSIN
From 20-JUN-07 15:02:00 to 20-JUN-07 15:02:00 (CST-6)
Location: IRMA
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Hail in FOREST, WISCONSIN
From 20-JUN-07 15:13:00 to 20-JUN-07 15:13:00 (CST-6)
Location: ARGONNE
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Thunderstorm Wind in OCONTO, WISCONSIN
From 20-JUN-07 20:00:00 to 20-JUN-07 20:00:00 (CST-6)
Location: CHASE
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Large tree down in Town of Chase.

Thunderstorm Wind in CALUMET, WISCONSIN
From 20-JUN-07 22:00:00 to 20-JUN-07 22:00:00 (CST-6)
Location: POTTER
Magnitude: 56.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Several trees were snapped off 15 feet above the ground.

Hail in ONEIDA, WISCONSIN
From 20-JUN-07 15:15:00 to 20-JUN-07 15:15:00 (CST-6)
Location: MC NAUGHTON
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Nickel to quarter size hail fell in the McNaughton and Lake Tomahawk areas.

Hail in LANGLADE, WISCONSIN
From 20-JUN-07 15:30:00 to 20-JUN-07 15:30:00 (CST-6)
Location: ANTIGO
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Park/Forest Service

Half inch to golf ball size hail.

Hail in MARINETTE, WISCONSIN
From 20-JUN-07 16:30:00 to 20-JUN-07 16:30:00 (CST-6)
Location: CRIVITZ
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Hail in ONEIDA, WISCONSIN
From 20-JUN-07 15:40:00 to 20-JUN-07 15:40:00 (CST-6)
Location: RHINELANDER
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Hail in MARINETTE, WISCONSIN
From 20-JUN-07 15:59:00 to 20-JUN-07 15:59:00 (CST-6)
Location: WAUSAUKEE
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Hail in MARINETTE, WISCONSIN
From 20-JUN-07 16:11:00 to 20-JUN-07 16:11:00 (CST-6)
Location: MC ALLISTER
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in ONEIDA, WISCONSIN
From 20-JUN-07 14:35:00 to 20-JUN-07 14:35:00 (CST-6)
Location: WOODBORO
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in DOOR, WISCONSIN
From 20-JUN-07 20:52:00 to 20-JUN-07 20:52:00 (CST-6)
Location: STURGEON BAY
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Hail in LINCOLN, WISCONSIN
From 20-JUN-07 18:58:00 to 20-JUN-07 18:58:00 (CST-6)
Location: MERRILL
Magnitude: 1.25 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public