Severe · Flood WatchActive alert

Flood Watch issued September 18 at 1:23AM CDT until September 19 at

Affecting Dubuque; Jackson; Jo Daviess; Stephenson; Carroll

In effect until: Sep 19, 2026, 6:30 AM

Dubuque; Jackson; Jo Daviess; Stephenson; Carroll

Possible impact zone; conditions develop through 6:30 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.

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Read the original bulletin (official text)

* WHAT...Flooding caused by excessive rainfall is possible.

* WHERE...Portions of northwest Illinois, including the following
counties, Carroll, Jo Daviess and Stephenson and Iowa, including
the following counties, Dubuque and Jackson.

* WHEN...From late tonight through Saturday evening.

* 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...
- Widespread showers and storms are expected to develop late
tonight and last into Saturday. These storms will be capable of
rainfall rates between 1-2 inches per hour. Rainfall totals of
1-3 inches are likely through Saturday evening with the potential
for localized areas of 3+ inches.

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

Flood Watch issued September 18 at 1:23AM CDT until September 19 at

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