McHENRY – A severe thunderstorm set off tornado sirens and downed trees and wires, causing small fires and power outages, according to fire and police dispatchers across McHenry County.
The thunderstorm rolled east across the county starting around 4:30 p.m., causing the National Weather Service to issue a tornado warning for east central McHenry County and western Lake County, in paticular for towns like Lakemoor, Holiday Hills and Wauconda.
The warning didn't materialize into any tornados, but the thunderstorm accompanied by strong winds took out trees and wires, leaving more than 8,000 McHenry County ComEd customers without power at the peak, according to ComEd's website.
A flood advisory for southern McHenry County and Lake County and a severe thunderstorm watch for the both counties followed the tornado warning. The advisory warned of wind gusts up to 60 mph and quarter-sized hail.
A flash flood advisory also was issued for Cook County.
The National Weather Service initially reported that a thunderstorm capable of producing a tornado was located near Sunnyside and moving southeast at 20 mph, according to the warning issued at 4:22 p.m.
Tornado sirens went off in Crystal Lake, Lakewood and Lake in the Hills, according to reports.