1 thunderstorm wind, as filed by the National Weather Service.
Every event with a place to put it. Tap one for its entry below.
Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
The Chicago radar (KLOT), 59 km away, was scanning. The volume nearest the first event began at 02:13 UTC.
1 thunderstorm wind. Local standard time, as filed.
Strong to severe thunderstorms developed late in the afternoon and continued into the evening, producing strong winds, heavy rain and small hail. Downed trees and power lines resulted in numerous power outages.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Illinois in 1997Every state in 1997This day in weather historyWarnings in Illinois, August 1997
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 5616430.