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EF0 tornado in Waukesha County, Wisconsin

Tornado July 29, 2021 · Waukesha County, Wisconsin

EF0
Rating
3.3 mi
Whole path
50 yd
Path width

NOAA records this tornado county by county. Its path ran through Waukesha County → Waukesha County; the totals above are for the whole tornado.

EF0EF1EF2EF3EF4EF5Unrated

The path drawn at its surveyed width of 50 yards (0.03 mi) — zoom in and the swath grows to true scale. Other tornadoes recorded nearby that day are shown faint.

What EF0 means. On the Enhanced Fujita scale, EF0 is light damage: shingles and siding peeled, gutters torn, branches broken, consistent with estimated gusts of 65–85 mph. The rating comes from a survey of the worst damage after the storm, not from a wind measurement, so it says as much about what the tornado hit as about how strong it was.

What the National Weather Service wrote

This was 1 of 17 tornadoes to occur in Wisconsin on the night of July 28th into the early morning hours of July 29th. This was the 16th overall tornado for the event. A line of storms developed in northern Wisconsin and pushed south into southern Wisconsin in the overnight hours of the 28th into the 29th of July with mainly brief tornadoes and damaging winds occurring.

This tornado mainly went through rural areas east of Wales and west of Waukesha. Mainly had minor tree damage noted along this path which ran from north of Hwy 18 across it down toward County Rd DT to the west of Retzer Nature Center.

The wider storm

A round of severe storms tracked into southwest Wisconsin during the early morning hours on July 28th. Followed by another round of stronger, more widespread thunderstorms that begin to dive south across central Wisconsin late in the evening on July 28th through the early morning hours on July 29th.

Began near Lapham Peak State Park (43.0306, -88.3464).

Other tornadoes from the same storm system

8 more tornadoes the National Weather Service filed under this storm episode.

EF1 Columbia CountyEF1 Dane CountyEF1 Jefferson CountyEF1 Waukesha CountyEF0 Dane CountyEF0 Columbia CountyEF0 Jefferson CountyEF0 Jefferson County

Source: NOAA Storm Events Database, event 973883. Narratives are written by the National Weather Service forecast office that issued the report.

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