Storm Record · Waukesha County

July 29, 2014: Straight-line wind in Waukesha County

63mph
Strongest gust
1
NWS reports

What the National Weather Service recorded

A shortwave trough and the associated surface trough triggered clusters of showers and thunderstorms over southern Wisconsin during the evening. A thunderstorm became rooted to a pseudo lake breeze/outflow boundary moving inland from Lake Michigan. The thunderstorm developed supercell characteristics and dropped a downburst on the west side of Waukesha. The thunderstorm them morphed into a small segment squall line with damaging winds on the leading gust front as it moved through Kenosha County.

Source: NOAA Storm Events Database · episode 86819

Every report, in the Weather Service's words

Where It Hit

Location County Hazard Size Report
Waukesha Co Arpt (1.8 SW) Waukesha Wind 63 mph wind A downburst produced a sporadic north to south path of wind damage on the west side of Waukesha. Several large trees were knocked down with one tree partially uprooted. Some shingles were removed from home roofs.
Source: NOAA Storm Events Database, Wisconsin