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EF0 tornado in Morgan County, Illinois

Tornado April 29, 2017 · Morgan County, Illinois

EF0
Rating
0.7 mi
Path length
10 yd
Path width
EF0EF1EF2EF3EF4EF5Unrated

The path drawn at its surveyed width of 10 yards (0.01 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 briefly touched down in an open field 3 miles northeast of Alexander at 4:20 PM CDT. No damage was reported.

The wider storm

Low pressure tracking along a stationary frontal boundary near the I-70 corridor brought widespread strong to severe thunderstorms to much of central and southeast Illinois during the late afternoon and evening of April 29th. A tornado briefly touched down in an open field northeast of Alexander in Morgan County. Elsewhere, thunderstorms packed winds of 60-70mph and caused significant wind damage. A downburst with estimated winds of 80mph caused property damage of around 2 million dollars in Middletown in Logan County. In addition to the strong winds, many of the storms dropped copious amounts of rain, causing widespread flash flooding. Numerous roads were closed due to high water, including Highway 29 north of the McClugage Bridge in Peoria where a mudslide occurred.

Began near Alexander (39.7459, -90.0000).

Source: NOAA Storm Events Database, event 691595. Narratives are written by the National Weather Service forecast office that issued the report.

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