Flood Warning: Cook, IL

source: us-gov-api (us-gov-api:noaa-weather)published 2026-08-11 20:48ingested 2026-08-12 07:27

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Flood Warning — Cook, IL Severity: Severe. Certainty: Likely. ...The National Weather Service in Chicago has issued a Flood Warning for the following rivers in Illinois... Thorn Creek at Thornton affecting Cook County. * 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...From this evening to Thursday afternoon. * IMPACTS...At 11.0 feet, 187th Street threatened in Glenwood. * ADDITIONAL DETAILS... - At 8:30 PM CDT Tuesday the stage was 9.6 feet. - Forecast...The river is expected to rise to a crest of 10.7 feet just after midnight tonight. It will then fall below flood stage late Thursday 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The historical document was shared with another weather alert and cannot be attributed to this record.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.