Storm Events Database

Event Details

Event Thunderstorm Wind
Magnitude 56 kts.
State WISCONSIN
County/Area OZAUKEE
WFO MKX
Report Source Law Enforcement
NCDC Data Source CSV
Begin Date 2011-09-03 04:20:00.0 CST-6
Begin Location 3W MEQUON
Begin Lat/Lon 43.22/-88.04
End Date 2011-09-03 04:35:00.0 CST-6
End Location 0W PORT WASHINGTON
End Lat/Lon 43.38/-87.87
Deaths Direct/Indirect 0/0 (fatality details below, when available...)
Injuries Direct/Indirect 0/0
Property Damage
Crop Damage
Episode Narrative A residual surface boundary that extended from eastern Iowa across northern Illinois was the focus for thunderstorm development as a moderate southwest 850 mb jet pushed it north as a warm front. Upper divergence from the right entrance region of an upper jet maxmum provided additional lift. Moderate deep layer wind shear produced sustained updrafts to form thunderstorm clusters that evolved into short line segments as they reached southern Wisconsin. The severe thunderstorm lines produced damaging wind gusts in a swath from Iowa County along and either side of the I-94 corridor to Milwaukee and Ozaukee counties.
Event Narrative Law enforcement officers reported numerous trees and power lines downed in a 5-mile wide swath from west of Mequon to Port Washington from damaging severe thunderstorm wind gusts estimated at 56 knots (65 mph).


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All events for this episode:

Location County/Zone St. Date Time T.Z. Type Mag Dth Inj PrD CrD
Totals: 0 0 215.00K 200.00K
LINDEN IOWA CO. WI 09/03/2011 01:40 CST-6 Thunderstorm Wind 70 kts. EG 0 0 50.00K 0.00K
DODGEVILLE IOWA CO. WI 09/03/2011 02:05 CST-6 Thunderstorm Wind 70 kts. EG 0 0 100.00K 200.00K
BLUE MOUNDS DANE CO. WI 09/03/2011 02:22 CST-6 Thunderstorm Wind 65 kts. EG 0 0 15.00K 0.00K
OREGON DANE CO. WI 09/03/2011 02:45 CST-6 Thunderstorm Wind 65 kts. EG 0 0 15.00K 0.00K
PAOLI DANE CO. WI 09/03/2011 02:46 CST-6 Hail 0.75 in. 0 0 0.00K 0.00K
COTTAGE GROVE DANE CO. WI 09/03/2011 03:10 CST-6 Thunderstorm Wind 50 kts. EG 0 0 0.00K 0.00K
LAKE MILLS JEFFERSON CO. WI 09/03/2011 03:10 CST-6 Thunderstorm Wind 65 kts. EG 0 0 0.00K 0.00K
MARSHALL DANE CO. WI 09/03/2011 03:11 CST-6 Thunderstorm Wind 56 kts. EG 0 0 0.00K 0.00K
PORTLAND DODGE CO. WI 09/03/2011 03:20 CST-6 Thunderstorm Wind 65 kts. EG 0 0 15.00K 0.00K
WATERLOO JEFFERSON CO. WI 09/03/2011 03:20 CST-6 Thunderstorm Wind 65 kts. EG 0 0 15.00K 0.00K
MONTEREY WAUKESHA CO. WI 09/03/2011 03:40 CST-6 Thunderstorm Wind 56 kts. EG 0 0 2.00K 0.00K
ALDERLEY DODGE CO. WI 09/03/2011 03:55 CST-6 Thunderstorm Wind 56 kts. EG 0 0 0.00K 0.00K
HARTFORD WASHINGTON CO. WI 09/03/2011 04:00 CST-6 Thunderstorm Wind 60 kts. EG 0 0 3.00K 0.00K
TIMMERMAN ARPT MILWAUKEE CO. WI 09/03/2011 04:10 CST-6 Thunderstorm Wind 56 kts. EG 0 0 0.00K 0.00K
MEQUON OZAUKEE CO. WI 09/03/2011 04:20 CST-6 Thunderstorm Wind 56 kts. EG 0 0 0.00K 0.00K
Totals: 0 0 215.00K 200.00K