# Flood Warning: Cook, IL — retained record

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

Canonical: https://highsignal.app/data/records/6b6943f0f6d37c98

[← sources](https://highsignal.app/data)


source: [us-gov-api](https://highsignal.app/data/us-gov-api) (us-gov-api:noaa-weather)  published 2026-08-11 20:48 ingested 2026-08-12 07:27

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

## extract

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The historical document was shared with another weather alert and cannot be attributed to this record.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