Storm Record · Jefferson, Walworth, Waukesha Counties

June 30, 2014: Straight-line wind in Jefferson, Walworth and Waukesha Counties

66mph
Strongest gust
5
NWS reports

What the National Weather Service recorded

A large scale bow echo raced east to northeast across southern WI, causing straight line wind damage in many areas. We Energies reported a maximum power outage of 110000 homes which has not happened since 2005. The outages were due to straight line winds and lightning impacting the power lines.

Source: NOAA Storm Events Database · episode 88029

Every report, in the Weather Service's words

Where It Hit

Location County Hazard Size Report
Bethesda (2 NNE) Waukesha Wind 66 mph wind A swath of trees down, some large. Power lines down. Some roads blocked by fallen trees.
Darien (1.72 NE) Walworth Wind 63 mph wind A path of sporadic trees down, some large.
Sullivan (1.47 NNW) Jefferson Wind 63 mph wind One power pole blown down in the town of Concord.
Elkhorn (.6 W) Walworth Wind 63 mph wind Numerous large trees down throughout Elkhorn.
Menomonee Falls (.98 E) Waukesha Wind 59 mph wind Sixteen inch diameter tree knocked down onto highway 145.
Source: NOAA Storm Events Database, Wisconsin