Flood Warning: Cook, IL

source: us-gov-api (us-gov-api:noaa-weather)published 2026-08-15 20:47ingested 2026-08-16 06:38

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Flood Warning — Cook, IL Severity: Severe. Certainty: Observed. ...The Flood Warning is extended for the following rivers in Illinois... Thorn Creek at Thornton affecting Cook County. * WHAT...Minor flooding is forecast. * WHERE...Thorn Creek from Near Glenwood downstream to confluence with Little Calumet River, including the Thornton gauge. * WHEN...Until Monday morning. * IMPACTS...At 9.0 feet, Water begins to be diverted through Thorn Creek Diversion Tunnel. * ADDITIONAL DETAILS... - At 8:30 PM CDT Saturday the stage was 7.4 feet. - Forecast...The river is expected to rise to a crest of 8.6 feet tomorrow evening. - 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The historical document was shared with another weather alert and cannot be attributed to this record.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.