A strong cold front slowly moved across Wisconsin from northwest to southeast.  Thunderstorms developed during the afternoon as the front encountered a warm and humid airmass.  Some storms produced heavy rain, large hail and damaging winds.  The winds downed trees and power lines across northern Wisconsin, causing more than 11,000 customers to lose electricity.

Heavy Rain in MARATHON, WISCONSIN
From 28-AUG-07 14:15:00 to 28-AUG-07 14:15:00 (CST-6)
Location: ABBOTSFORD
Reported by: Broadcast Media

Rainfall of 0.90 inch fell in just 15 minutes on the Marathon County side of Abbotsford.

Hail in LANGLADE, WISCONSIN
From 28-AUG-07 15:05:00 to 28-AUG-07 15:05:00 (CST-6)
Location: PICKEREL
Magnitude: 1.00 
Reported by: Public

A tree was blown down and one-inch diameter hail fell at Pickerel.

Thunderstorm Wind in ONEIDA, WISCONSIN
From 28-AUG-07 15:05:00 to 28-AUG-07 15:05:00 (CST-6)
Location: PELICAN LAKE
Magnitude: 56.00 EG
Reported by: Law Enforcement

Strong thunderstorm winds knocked down about a dozen trees between Pelican Lake and Monico.

Thunderstorm Wind in SHAWANO, WISCONSIN
From 28-AUG-07 15:42:00 to 28-AUG-07 15:42:00 (CST-6)
Location: BIRNAMWOOD
Magnitude: 52.00 EG
Reported by: Amateur Radio

Strong thunderstorm winds downed a few trees and large tree limbs in Birnamwood.

Thunderstorm Wind in MARATHON, WISCONSIN
From 28-AUG-07 14:52:00 to 28-AUG-07 15:00:00 (CST-6)
Location: (AUW)WAUSAW MUNI ARP
Magnitude: 54.00 MG
Reported by: ASOS

Strong winds from thunderstorms downed trees on Grand Avenue in Wausau.  A tree was also knocked down at a Wausau television station, damaging a car windshield.

Thunderstorm Wind in MARINETTE, WISCONSIN
From 28-AUG-07 16:03:00 to 28-AUG-07 16:07:00 (CST-6)
Location: ATHELSTANE
Magnitude: 56.00 EG
Reported by: Law Enforcement

Strong thunderstorm winds downed trees in the Athelstane and Amberg areas.

Thunderstorm Wind in FLORENCE, WISCONSIN
From 28-AUG-07 16:07:00 to 28-AUG-07 16:07:00 (CST-6)
Location: FLORENCE
Magnitude: 52.00 EG
Reported by: Law Enforcement

Thunderstorm winds downed several trees near Florence.

Thunderstorm Wind in LINCOLN, WISCONSIN
From 28-AUG-07 14:35:00 to 28-AUG-07 14:35:00 (CST-6)
Location: DUDLEY
Magnitude: 52.00 EG
Reported by: Law Enforcement

Strong winds from thunderstorms downed trees along Highway 17 in eastern Lincoln County.

Thunderstorm Wind in OCONTO, WISCONSIN
From 28-AUG-07 15:46:00 to 28-AUG-07 15:46:00 (CST-6)
Location: MOUNTAIN
Magnitude: 52.00 EG
Reported by: Public

Strong winds from thunderstorms knocked down trees along Highway 64 near Mountain.

Hail in LANGLADE, WISCONSIN
From 28-AUG-07 15:01:00 to 28-AUG-07 15:01:00 (CST-6)
Location: NEVA
Magnitude: 0.75 
Reported by: Law Enforcement

Hail up to penny size accompanied damaging winds in Neva.

Thunderstorm Wind in MARINETTE, WISCONSIN
From 28-AUG-07 16:14:00 to 28-AUG-07 16:18:00 (CST-6)
Location: CRIVITZ
Magnitude: 65.00 EG
Property damage: 10.00K
Reported by: Emergency Manager

Thunderstorm winds snapped or uprooted numerous trees around Crivitz.  The strong winds also slammed boats against docks on Lake Noquebay causing damage to five of them.

Thunderstorm Wind in OUTAGAMIE, WISCONSIN
From 28-AUG-07 16:48:00 to 28-AUG-07 16:48:00 (CST-6)
Location: BLACK CREEK
Magnitude: 52.00 EG
Reported by: Law Enforcement

Strong thunderstorm winds downed several trees and branches.

Thunderstorm Wind in MARATHON, WISCONSIN
From 28-AUG-07 14:09:00 to 28-AUG-07 14:09:00 (CST-6)
Location: ATHENS
Magnitude: 52.00 EG
Reported by: Law Enforcement

Strong winds from thunderstorms knocked down trees near Athens.

Thunderstorm Wind in LINCOLN, WISCONSIN
From 28-AUG-07 14:15:00 to 28-AUG-07 14:17:00 (CST-6)
Location: TOMAHAWK
Magnitude: 56.00 EG
Reported by: Law Enforcement

Strong thunderstorm winds downed numerous trees and power lines across central Lincoln County.

Thunderstorm Wind in LANGLADE, WISCONSIN
From 28-AUG-07 15:01:00 to 28-AUG-07 15:01:00 (CST-6)
Location: NEVA
Magnitude: 56.00 EG
Reported by: Law Enforcement

Strong winds from a thunderstorm tore the roof from a small building.

Thunderstorm Wind in MARATHON, WISCONSIN
From 28-AUG-07 15:05:00 to 28-AUG-07 15:05:00 (CST-6)
Location: HATLEY
Magnitude: 54.00 MG
Reported by: Trained Spotter

Thunderstorm Wind in FOREST, WISCONSIN
From 28-AUG-07 15:08:00 to 28-AUG-07 15:08:00 (CST-6)
Location: CRANDON
Magnitude: 70.00 EG
Property damage: 10.00K
Reported by: Emergency Manager

Strong winds from thunderstorms tipped over a mobile home and downed many trees across the southwest part of Forest County.

Hail in MARATHON, WISCONSIN
From 28-AUG-07 14:55:00 to 28-AUG-07 14:55:00 (CST-6)
Location: (AUW)WAUSAW MUNI ARP
Magnitude: 1.00 
Reported by: Public

One-inch hail was reported at Wausau Downtown Airport.