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Flooding possible, travel impacted as heavy rain hits parts of Chicago area: LIVE RADAR
Forecasters warned of up to 3 inches of rain as the National Weather Service said storms could produce 2 inches per hour and trigger flash flooding.
On Saturday, September 19, heavy rain and thunderstorms triggered an AccuWeather Alert and Flood Watch across the Chicago area, with the National Weather Service warning of torrential rainfall and flash flooding potential.
Developing drought conditions across Chicagoland were erased by the weekend storm system, fueled by an intensifying super El Niño and record-warm Pacific waters that loaded the atmosphere with moisture.
O'Hare International Airport saw more than 300 flight cancellations on Saturday, with departures delayed an average of 203 minutes; Midway Airport reported 71 cancellations and 24-minute average delays.
Flooding caused by excessive rainfall forced New Richland, Minnesota, to declare a state of emergency; firefighters used boats to rescue residents from four homes as flash floods inundated the region.
After lingering rain chances on Monday, temperatures dropped into the 60s, with the National Weather Service expecting a dry stretch to persist through most of the upcoming week.