Tornado Warning — Cook, IL — Aug 11, 2026

NWS LOT · ETN 72 · National Weather Service warning

Tornado Warning for Cook — radar, warned-area polygon and storm motion

Radar-indicated position & projected track

Event Summary

The National Weather Service office LOT issued a tornado warning at 16:05 UTC on Aug 11, 2026 covering Cook, IL. The warning was in effect for 11 minutes, ending at Aug 11, 2026 16:16 UTC. At the last radar check, the storm was located near 41.87, -87.52, moving east at about 56 mph.

Timeline

Issued: Aug 11, 2026 16:05 UTC
Last updated: Aug 11, 2026 16:14 UTC
Ended: Aug 11, 2026 16:16 UTC

Counties Affected

Cook, IL

Towns in the Path

Cicero, IL Chicago, IL Oak Park, IL

Storm Reports

No tornado reports have been filed for this warning yet — SPC reports typically arrive within hours; this page updates automatically.