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EF2 tornado in Cook County, Illinois

Tornado July 15, 2024 · Cook County, Illinois

EF2
Rating
34.6 mi
Whole path
325 yd
Path width
2
Injuries

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

EF0EF1EF2EF3EF4EF5Unrated

The path drawn at its surveyed width of 325 yards (0.18 mi) — zoom in and the swath grows to true scale. Other tornadoes recorded nearby that day are shown faint.

What EF2 means. On the Enhanced Fujita scale, EF2 is considerable damage: roofs torn off well-built houses, mobile homes destroyed, large trees snapped or uprooted, consistent with estimated gusts of 111–135 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 with estimated peak winds of 130 mph touched down in Grundy County, moved northeast across Will County and crossed Harlem Avenue and into Cook County between Route 30 and Old Plank Road. The tornado had weakened as it moved into Cook County but still produced tree damage along its path, crossing Route 30, then crossing Interstate 57 and ending near Matteson Avenue just west of Cicero Avenue.

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 Matteson (41.5019, -87.7903).

Other tornadoes from the same storm system

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

EF1 Kane CountyEF1 Kendall CountyEF1 Kendall CountyEF1 Cook CountyEF1 Cook CountyEF1 Cook CountyEF1 Cook CountyEF1 Kankakee CountyEF1 Will CountyEF0 Livingston CountyEF0 Winnebago CountyEF0 Ogle CountyEF0 Ogle CountyEF0 Ogle CountyEF0 Kane CountyEF0 Will CountyEF0 Du Page CountyEF0 Du Page CountyEF0 Du Page CountyEF0 Cook CountyEF0 Cook CountyEF0 Cook CountyEF0 Kankakee CountyEF0 Will CountyEFU De Kalb County

Source: NOAA Storm Events Database, event 1194196. Narratives are written by the National Weather Service forecast office that issued the report.

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