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EF1 tornado in Clark County, Wisconsin

Tornado May 15, 2025 · Clark County, Wisconsin

EF1
Rating
2.4 mi
Path length
100 yd
Path width
$45K
Damage as recorded
$15K
Crop damage
EF0EF1EF2EF3EF4EF5Unrated

The path drawn at its surveyed width of 100 yards (0.06 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

This tornado touched down southeast of Loyal and tracked to the east-northeast, damaging one residence in addition to trees and powerlines before quickly dissipating.

The wider storm

During the afternoon hours on May 15th, a developing complex of embedded supercell thunderstorms moved eastward into western Wisconsin. As they continued to intensify, they resulted in widespread hail of up to two inches in diameter across much of western Wisconsin and four tornadoes in Clark County. The strongest of these tornadoes was an EF-2 near Colby, Wisconsin where numerous power poles were downed and one home sustained significant damage to its roof and attached garage.

Began near Loyal (44.7200, -90.4900).

Other tornadoes from the same storm system

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

EF2 Clark CountyEF1 Clark CountyEF0 Clark County

Source: NOAA Storm Events Database, event 1265746. Narratives are written by the National Weather Service forecast office that issued the report.

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