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EF1 tornado in Whiteside County, Illinois

Tornado June 22, 2015 · Whiteside County, Illinois

EF1

Rating

2.2 mi

Path length

75 yd

Path width

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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

Hardwood trees and trunks were snapped, with peak wind speed of 100 mph on this short tornado spin up.

The wider storm

Severe thunderstorms produced both significant straight line winds and tornadoes as they moved east through Whiteside County the evening of June 22nd.

Began near Sterling (41.7909, -89.6702).

Other tornadoes from the same storm system

2 more tornadoes the National Weather Service filed under this storm episode.

EF2 Rock Island County EF1 Whiteside County

Source: NOAA Storm Events Database, event 590445. Narratives are written by the National Weather Service forecast office that issued the report.

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