Illinois Severe Flood Watch | Effective 06/17/2026 00:20
* WHAT...Flash flooding caused by excessive rainfall is possible.
* WHERE...Portions of north central and northeast Illinois,
including the following counties, Boone, De Kalb, Lee, Ogle, and
McHenry.
* WHEN...From 10 AM CDT this morning through this afternoon.
* IMPACTS...Creeks and streams may rise out of their banks.
* ADDITIONAL DETAILS...
- Showers and thunderstorms are expected today. Rain may be
heavy at times, with the strongest storms capable of
torrential rainfall which could drop up to 2 inches of rain