Severe · Flood WatchActive alert
Flood Watch issued September 14 at 10:52PM CDT until September 15 at
Affecting Pottawattamie; Mills; Montgomery; Fremont; Page; Douglas; Sarpy; Lancaster; Cass; Otoe; Gage; Johnson; Nemaha; Pawnee; Richardson
In effect until: Sep 16, 2026, 12:00 AM
Pottawattamie; Mills; Montgomery; Fremont; Page; Douglas; Sarpy; Lancaster; Cass; Otoe; Gage; Johnson; Nemaha; Pawnee; Richardson
Possible impact zone; conditions develop through 12:00 AM.
You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued.
Read the original bulletin (official text)
* WHAT...Flash flooding caused by excessive rainfall continues to be possible. * WHERE...Portions of southwest Iowa, including the following counties, Fremont, Mills, Montgomery, Page and Pottawattamie and Nebraska, including the following counties, Cass, Douglas, Gage, Johnson, Lancaster, Nemaha, Otoe, Pawnee, Richardson and Sarpy. * WHEN...Through Tuesday evening. * IMPACTS...Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. * ADDITIONAL DETAILS... - Recent heavy rainfall combined with potential for repeated rounds of thunderstorms this evening and overnight will lead to a flash flooding threat through at least Tuesday morning. Additional rounds of rainfall will be possible through the remainder of the week. If confidence increases in potential for heavy rain Tuesday night into Wednesday, part or all of the watch may need to be extended. - http://www.weather.gov/safety/flood
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Alert data: U.S. National Weather Service / NOAA · Translation: WeatherTranslate™