← sources

Flood Warning: Cook, IL

source: us-gov-api (us-gov-api:noaa-weather)published 2026-08-12 21:53ingested 2026-08-13 07:31

extract

Flood Warning — Cook, IL Severity: Severe. Certainty: Observed. ...The Flood Warning continues for the following rivers in Illinois... Thorn Creek at Thornton affecting Cook County. For the Thorn Creek...including Thornton...Minor flooding is forecast. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Thorn Creek from Near Glenwood downstream to confluence with Little Calumet River, including the Thornton gauge. * WHEN...Until Thursday afternoon. * IMPACTS...At 9.0 feet, Water begins to be diverted through Thorn Creek Diversion Tunnel. * ADDITIONAL DETAILS... - At 9:30 PM CDT Wednesday the stage was 9.4 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 9:30 PM CDT Wednesday was 10.6 feet. - Forecast...The river has crested and is expected to gradually fall overnight. It will fall below flood stage late tomorrow morning. - Flood stage is 9.0 feet. - http://www.weather.gov/safety/flood

retained text

The historical document was shared with another weather alert and cannot be attributed to this record. The original extract is preserved above; the exact alert link was not retained.