Severe · Flood WatchActive alert
Flood Watch issued September 19 at 1:45AM CDT until September 20 at
Affecting Buchanan; Delaware; Dubuque; Jones; Jackson; Clinton; Jo Daviess; Stephenson; Carroll; Whiteside
In effect until: Sep 20, 2026, 7:00 AM
Buchanan; Delaware; Dubuque; Jones; Jackson; Clinton; Jo Daviess; Stephenson; Carroll; Whiteside
Possible impact zone; conditions develop through 7:00 AM.
You should monitor later forecasts and be alert for possible Flash Flood Warnings. Those living in areas prone to flooding should be prepared to take action should flooding develop.
Read the original bulletin (official text)
* WHAT...Flooding and flash flooding caused by excessive rainfall is possible. * WHERE...Portions of northwest Illinois, including the following counties, Carroll, Jo Daviess, Stephenson and Whiteside and Iowa, including the following counties, Buchanan, Clinton, Delaware, Dubuque, Jackson and Jones. * WHEN...Through Sunday morning. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Flooding may occur in poor drainage and urban areas. * ADDITIONAL DETAILS... - Rounds of showers and storms are expected through tonight. These storms will be capable of rainfall rates between 1 to 2 inches per hour. Rainfall totals of 1 to 3 inches are likely in the hardest hit areas through early Sunday morning with the potential for localized areas of 3+ inches.
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Alert data: U.S. National Weather Service / NOAA · Translation: WeatherTranslate™