Severe · Flood WatchActive alert

Flood Watch issued September 19 at 10:34AM CDT until September 20 at

Affecting Winnebago; McHenry

In effect until: Sep 19, 2026, 11:45 PM

Winnebago; McHenry

Possible impact zone; conditions develop through 11:45 PM.

Avoid flooded areas. Move to higher ground if water is rising near you.

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Read the original bulletin (official text)

* WHAT...Flash flooding caused by excessive rainfall continues to be
possible.

* WHERE...Portions of north central and northeast Illinois, including
the following counties, in north central Illinois, Winnebago. In
northeast Illinois, McHenry.

* WHEN...Through early Sunday morning.

* IMPACTS...Creeks and streams may rise out of their banks. Flooding
may occur in poor drainage and urban areas. Roads and streets may
be flooded.

* ADDITIONAL DETAILS...
- An additional round of showers and thunderstorms, some with very
heavy rainfall, are expected this evening and overnight which may
result in areas of flash flooding, particularly over urban or
areas of poor drainage.
- http://www.weather.gov/safety/flood

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Alert data: U.S. National Weather Service / NOAA · Translation: WeatherTranslate™

Flood Watch issued September 19 at 10:34AM CDT until September 20 at

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