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EF1 tornado in Muscatine County, Iowa

Tornado May 7, 2023 · Muscatine County, Iowa

EF1
Rating
5.0 mi
Path length
100 yd
Path width
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 developed just NNW of West Liberty and tracked across the far northeast part of town before eventually crossing over U.S. Highway 6 between West Liberty and Atalissa, and diminishing shortly after. The extent of the damage was mainly to outbuildings, with several walls and roofs collapsed and in some cases blown across a downstream field. A few large trees and two utility poles were also snapped. A large metal batting cage anchored into concrete was twisted and bent sharply at its base.

The wider storm

Several severe thunderstorms developed across much of eastern Iowa on the evening of May 6, 2023. Storms mainly produced hail up to golf ball size. Through the evening, storms merged and weakened in intensity, but not before producing some wind damage across northern and central Lee County. An isolated tornado also occurred in Muscatine County. Heavy rain also fell from storms as some remained stationary for long periods of time. Most notably, locations north and east of Fairfield, Iowa recorded over two inches of rain.

Began near West Liberty (41.5900, -91.2700).

Source: NOAA Storm Events Database, event 1103405. Narratives are written by the National Weather Service forecast office that issued the report.

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