Severe · Flood WatchActive alert

Flood Watch issued September 6 at 11:05AM CDT until September 7 at

Affecting Monona; Harrison; Shelby

In effect until: Sep 7, 2026, 9:00 AM

Monona; Harrison; Shelby

Possible impact zone; conditions develop through 9:00 AM.

You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued.

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Read the original bulletin (official text)

* WHAT...Flash flooding caused by excessive rainfall is possible.

* WHERE...Portions of southwest and west central Iowa, including the
following counties, in southwest Iowa, Harrison and Shelby. In west
central Iowa, Monona.

* WHEN...Through late tonight.

* IMPACTS...Excessive runoff may result in flooding of rivers,
creeks, streams, and other low-lying and flood-prone locations.

* ADDITIONAL DETAILS...
- Slow moving thunderstorms may lead to rapid rainfall
accumulations. Hourly rainfall rates of 2 to 4 inches are
possible.  This rainfall may lead to flash flooding along with
rapid rises on streams and creeks.
- http://www.weather.gov/safety/flood

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

Flood Watch issued September 6 at 11:05AM CDT until September 7 at

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