# Heat Advisory: Greene; Macoupin; Montgomery; Fayette; Calhoun; Jersey; Boone; Callaway; Montgomery; Lincoln — retained record

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

Canonical: https://highsignal.app/data/records/e097d3866bd11038

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


source: [us-gov-api](https://highsignal.app/data/us-gov-api) (us-gov-api:noaa-weather)  published 2026-09-17 16:44 ingested 2026-09-18 02:50

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

## extract

Heat Advisory — Greene; Macoupin; Montgomery; Fayette; Calhoun; Jersey; Boone; Callaway; Montgomery; Lincoln
Severity: Moderate. Certainty: Likely.
* WHAT...Heat index values up to 103.

* WHERE...In Illinois, Fayette IL, Montgomery IL, Calhoun IL, Greene
IL, Jersey IL, and Macoupin IL Counties. In Missouri, Boone MO,
Callaway MO, Lincoln MO, and Montgomery MO Counties.

* WHEN...Until 8 PM CDT Friday.

* IMPACTS...Hot temperatures and high humidity may cause heat
illnesses.

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The historical document was shared with another weather alert and cannot be attributed to this record.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