# Flood Warning: Cass, IL; Fulton, IL; Mason, IL — retained record

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

Canonical: https://highsignal.app/data/records/db11a1e2b739cf0d

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


source: [us-gov-api](https://highsignal.app/data/us-gov-api) (us-gov-api:noaa-weather)  published 2026-08-20 20:52 ingested 2026-08-21 06:45

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

## extract

Flood Warning — Cass, IL; Fulton, IL; Mason, IL
Severity: Severe. Certainty: Likely.
...Forecast flooding changed from Minor to Moderate severity for the
following rivers in Illinois...

Illinois River near Havana affecting Mason, Cass and Fulton
Counties.

.The following forecasts are based on observed precipitation, soil
moisture conditions, and forecast precipitation.

Additional information is available at www.weather.gov.

The next statement will be issued Friday morning at 900 AM CDT.

* WHAT...Minor flooding is occurring and moderate flooding is
forecast.

* WHERE...Illinois River near Havana.

* WHEN...Until further notice.

* ADDITIONAL DETAILS...
- At 7:45 PM CDT Thursday the stage was 16.8 feet.
- Recent Activity...The maximum river stage in the 24 hours ending
at 7:45 PM CDT Thursday was 16.9 feet.
- Forecast...The river is expected to rise to a crest of 17.0 feet
Saturday evening.
- Flood stage is 14.0 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The historical document was shared with another weather alert and cannot be attributed to this record.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.