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EF1 tornado in Dane County, Wisconsin

Tornado March 31, 2023 · Dane County, Wisconsin

EF1
Rating
4.8 mi
Path length
75 yd
Path width
$100K
Damage as recorded
EF0EF1EF2EF3EF4EF5Unrated

The path drawn at its surveyed width of 75 yards (0.04 mi) — zoom in and the swath grows to true scale. Other tornadoes recorded nearby that day are shown faint.

What EF1 means. On the Enhanced Fujita scale, EF1 is moderate damage: roofs badly stripped, mobile homes pushed off foundations or overturned, windows broken, consistent with estimated gusts of 86–110 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

Tornado damage path tracked from southeast of Stoughton and ended up by Washington Rd east of the city. Mainly tree damage noted along the path, though there were some farm outbuildings that had roofing damage along with some powerlines being snapped near Tower Drive.

The wider storm

A warm front was draped across southern Wisconsin on the evening of March 31st which had numerous thunderstorms develop along it. Most of the stronger storms that interacted with the warm front ended up producing some brief EF-0 to EF-1 tornadic damage. There were a few incidents that looked to be from straight line winds along the southeast side of the rotations, but most of the damage appeared to be lofted and from tornadoes.

Began near Hanerville (42.8744, -89.1682).

Other tornadoes from the same storm system

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

Source: NOAA Storm Events Database, event 1085086. Narratives are written by the National Weather Service forecast office that issued the report.

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