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EF1 tornado in Vermilion County, Illinois

Tornado May 26, 2017 · Vermilion County, Illinois

EF1
Rating
0.3 mi
Path length
75 yd
Path width
$45K
Damage as recorded
EF0EF1EF2EF3EF4EF5Unrated

The path drawn at its surveyed width of 75 yards (0.04 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

A tornado touched down at 5:53PM CDT 2.2 miles northwest of Alvin. It tracked southeastward and quickly dissipated by 5:54PM CDT. The tornado snapped a tree, did minor damage to the roof and siding of a house, broke an attic window, and blew the siding off a garage.

The wider storm

Supercell thunderstorms developed in the vicinity of a warm front draped along the I-74 corridor during the afternoon and early evening of May 26th. The hardest hit area was northern Vermilion County...where powerful cells produced a tornado, damaging winds, and extremely large hail. An EF-1 tornado touched down northwest of Alvin, damaging trees, the roof and siding of a house, and a garage. Meanwhile, 80-90mph winds produced nearly $3 million worth of tree and property damage in Rossville. Very large hail up to the size of tennis balls were reported in Rankin. In addition, extreme rainfall rates caused flash flooding in Hoopeston.

Began near Rossville Jct (40.3299, -87.6387).

Source: NOAA Storm Events Database, event 695630. Narratives are written by the National Weather Service forecast office that issued the report.

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