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EF0 tornado in Boone County, Illinois

Tornado May 7, 2024 · Boone County, Illinois

EF0

Rating

14.3 mi

Whole path

50 yd

Path width

$60K

Damage as recorded

NOAA records this tornado county by county. Its path ran through Boone County → McHenry County → Walworth County, Wisconsin; 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

A weak tornado touched down just west of Beaverton Road, about halfway between Hunter Road and Blaine Road. The tornado moved northeast producing sporadic tree damage in Boone County and crossed into McHenry County just north of Engelhardt Road.

The wider storm

Scattered thunderstorms moved across parts of northern Illinois during the afternoon of May 7th producing large hail, localized flooding and one tornado. Additional scattered thunderstorms developed during the evening of May 7th producing locally severe winds.

Began near Blaine (42.4401, -88.8039).

Source: NOAA Storm Events Database, event 1178612. Narratives are written by the National Weather Service forecast office that issued the report.

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