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EF0 tornado in Brown County, Wisconsin

Tornado August 7, 2019 · Brown County, Wisconsin

EF0
Rating
6.2 mi
Path length
90 yd
Path width
$50K
Damage as recorded
EF0EF1EF2EF3EF4EF5Unrated

The path drawn at its surveyed width of 90 yards (0.05 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

A tornado quickly formed southeast of the city of Green Bay and moved southeast into the town of Bellevue. Three power poles sustained damage and a business sign was heavily damaged in Green Bay. The tornado continued southeast and damaged at least 100 trees along the path (DI 27 and 28, DOD 1-3). A poorly constructed carport lost part of its metal roof at an apartment building and a nearby house lost a couple shingles (DI 2, DOD 2).

The wider storm

Severe thunderstorms formed in very unstable air ahead of a passing cold front. The worst of the damage from the storms occurred across east-central and parts of northeast Wisconsin. Thunderstorm winds downed numerous trees and some power lines, hail as large as golf balls fell, and a weak tornado touched down on the east side of Green Bay (Brown Co.). Heavy rain led to flooding in parts of east-central Wisconsin as the storms formed an east-west line that slowly moved southeast.

Began near Green Bay (44.4952, -87.9880).

Source: NOAA Storm Events Database, event 834163. Narratives are written by the National Weather Service forecast office that issued the report.

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