# Flood Warning: Cook, IL — retained record

> Retained us-gov-api record from us-gov-api:noaa-weather.

Canonical: https://highsignal.app/data/records/a71dced240a8c8df

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source: [us-gov-api](https://highsignal.app/data/us-gov-api) (us-gov-api:noaa-weather)  published 2026-08-15 20:47 ingested 2026-08-16 06:38

[original source ↗](http://www.weather.gov/)

## extract

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The historical document was shared with another weather alert and cannot be attributed to this record.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.