EF0 tornado in Cook County, Illinois

Tornado July 15, 2024 · Cook County, Illinois

EF0

Rating

6.3 mi

Whole path

85 yd

Path width

NOAA records this tornado county by county. Its path ran through Cook County → Cook County → Cook County; the totals above are for the whole tornado.

EF0EF1EF2EF3EF4EF5Unrated

The path drawn at its surveyed width of 85 yards (0.05 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 brief tornado with estimated peak winds of 85 mph touched down just north of 159th Street near Rob Roy Drive. In addition to tree damage, minor roof and fascia damage occurred to some homes, primarily confined to areas along Brookwood and Arroyo Drives. One home just west of Arroyo Drive suffered damage to siding, gutters, a vinyl fence and a broken window. The tornado ended near Terrace Drive and 158th Place.

The wider storm

A derecho moved across northern Illinois during the evening of July 15th producing widespread wind damage and 30 tornadoes in northeast Illinois. One of these tornadoes crossed into northwest Indiana. At the height of the storms, 430,000 customers lost power with some power not restored for four days, on July 19th.

Began near Oak Forest (41.6039, -87.7714).

Other tornadoes from the same storm system

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

Source: NOAA Storm Events Database, event 1194291. Narratives are written by the National Weather Service forecast office that issued the report.

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