A large convective thunderstorm complex moved southeast through southern Wisconsin during the mid-morning hours and gradually diminished in strength.  On the back side of the thunderstorm complex a wake low pressure formed, which resulted in a tight surface pressure gradient.  The tight pressure gradient generated strong gusty southeast winds up to around 40 knots (46 mph).

Lightning in DANE, WISCONSIN
From 27-AUG-07 08:45:00 to 27-AUG-07 08:45:00 (CST-6)
Location: DOWNTOWN MADISON
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Lightning struck the golf bag and then a 75-year-old male golfer who was standing under a tree during a thunderstorm.  He was instantly killed.  He was playing at the Odana Golf Course on the southwest side of Madison.

Strong Wind in ROCK, WISCONSIN
From 27-AUG-07 10:30:00 to 27-AUG-07 13:00:00 (CST-6)
Magnitude: 39.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: ASOS

Strong southeast wake-low winds gusting to 39 knots (45 mph) resulted in scattered reports of broken tree branches damaging power-lines.

Strong Wind in WALWORTH, WISCONSIN
From 27-AUG-07 10:30:00 to 27-AUG-07 13:00:00 (CST-6)
Magnitude: 39.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: ASOS

Strong southeast wake-low winds gusting to 39 knots (45 mph) resulted in scattered reports of broken tree branches damaging power-lines.

Strong Wind in RACINE, WISCONSIN
From 27-AUG-07 10:30:00 to 27-AUG-07 13:00:00 (CST-6)
Magnitude: 39.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: ASOS

Strong southeast wake-low winds gusting to 39 knots (45 mph) resulted in scattered reports of broken tree branches damaging power-lines.

Strong Wind in KENOSHA, WISCONSIN
From 27-AUG-07 10:30:00 to 27-AUG-07 13:00:00 (CST-6)
Magnitude: 39.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: ASOS

Strong southeast wake-low winds gusting to 39 knots (45 mph) resulted in scattered reports of broken tree branches damaging power-lines.

Lightning in COLUMBIA, WISCONSIN
From 27-AUG-07 08:00:00 to 27-AUG-07 08:00:00 (CST-6)
Location: PORTAGE
Property damage: 75.00K
Crop damage: 0.00K
Reported by: Newspaper

Lightning started a fire that substantially damaged a 2-story home.

Lightning in COLUMBIA, WISCONSIN
From 27-AUG-07 09:00:00 to 27-AUG-07 09:00:00 (CST-6)
Location: PORTAGE
Property damage: 50.00K
Crop damage: 0.00K
Reported by: Newspaper

Lightning started a fire that substantially damaged a 2-story home.

Strong Wind in DANE, WISCONSIN
From 27-AUG-07 10:30:00 to 27-AUG-07 13:00:00 (CST-6)
Magnitude: 39.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: ASOS

Strong southeast wake-low winds gusting to 39 knots (45 mph) resulted in scattered reports of broken tree branches damaging power-lines.  Additiionally, on the top of the 15-story AOS Building on the UW-Madison campus, a gust to 50 knots (58 mph) was measured at 1047CST.

Strong Wind in WAUKESHA, WISCONSIN
From 27-AUG-07 10:30:00 to 27-AUG-07 13:00:00 (CST-6)
Magnitude: 39.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: ASOS

Strong southeast wake-low winds gusting to 39 knots (45 mph) resulted in scattered reports of broken tree branches damaging power-lines.

Strong Wind in JEFFERSON, WISCONSIN
From 27-AUG-07 10:30:00 to 27-AUG-07 13:00:00 (CST-6)
Magnitude: 39.00 EG
Property damage: 15.00K
Crop damage: 0.00K
Reported by: ASOS

Strong southeast wake-low winds gusting to 39 knots (45 mph) resulted in scattered reports of felled trees and broken tree branches damaging power-lines.  A pier on Rock Lake in Lake Mills was ripped apart by the resultant hhigh waves that quickly formed.

Strong Wind in MILWAUKEE, WISCONSIN
From 27-AUG-07 10:30:00 to 27-AUG-07 13:00:00 (CST-6)
Magnitude: 40.00 MG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: ASOS

Strong southeast wake-low winds gusting to 40 knots (46 mph) resulted in scattered reports of broken tree branches damaging power-lines.

Strong Wind in GREEN, WISCONSIN
From 27-AUG-07 10:30:00 to 27-AUG-07 13:00:00 (CST-6)
Magnitude: 39.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: ASOS

Strong southeast wake-low winds gusting to 39 knots (45 mph) resulted in scattered reports of broken tree branches damaging power-lines.

Strong Wind in FOND DU LAC, WISCONSIN
From 27-AUG-07 10:30:00 to 27-AUG-07 13:00:00 (CST-6)
Magnitude: 39.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: ASOS

Strong southeast wake-low winds gusting to 39 knots (45 mph) resulted in scattered reports of broken tree branches damaging power-lines.

Strong Wind in SHEBOYGAN, WISCONSIN
From 27-AUG-07 10:30:00 to 27-AUG-07 13:00:00 (CST-6)
Magnitude: 39.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: ASOS

Strong southeast wake-low winds gusting to 39 knots (45 mph) resulted in scattered reports of broken tree branches damaging power-lines.

Strong Wind in COLUMBIA, WISCONSIN
From 27-AUG-07 10:30:00 to 27-AUG-07 13:00:00 (CST-6)
Magnitude: 43.00 MG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: ASOS

Strong southeast wake-low winds gusting to 43 knots (49 mph) resulted in scattered reports of broken tree branches damaging power-lines.

Strong Wind in DODGE, WISCONSIN
From 27-AUG-07 10:30:00 to 27-AUG-07 13:00:00 (CST-6)
Magnitude: 39.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: ASOS

Strong southeast wake-low winds gusting to 39 knots (45 mph) resulted in scattered reports of broken tree branches damaging power-lines.

Strong Wind in WASHINGTON, WISCONSIN
From 27-AUG-07 10:30:00 to 27-AUG-07 13:00:00 (CST-6)
Magnitude: 41.00 MG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: ASOS

Strong southeast wake-low winds gusting to 41 knots (47 mph) resulted in scattered reports of broken tree branches damaging power-lines.

Strong Wind in OZAUKEE, WISCONSIN
From 27-AUG-07 10:30:00 to 27-AUG-07 13:00:00 (CST-6)
Magnitude: 39.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: ASOS

Strong southeast wake-low winds gusting to 39 knots (45 mph) resulted in scattered reports of broken tree branches damaging power-lines.