Flash Flood Warning Issued for Montgomery and Pottawattamie Counties in Iowa
This alert is no longer in effect.
NOAA issued it on May 1, 2026, 3 months ago. Warnings of this kind stay in effect for hours to a few days, so this page is a historical record of what was issued, not a current warning. For conditions where you are right now, check weather.gov (US), weather.gc.ca (Canada), the Met Office (UK), or the Bureau of Meteorology (Australia).
Areazine synthesizes this NWS weather alert directly from NOAA's official public data feed. See our methodology for full source attribution and refresh cadence.
A Flash Flood Warning is in effect for northwestern Montgomery County and southeastern Pottawattamie County in southwestern Iowa until 9:00 PM CDT on April 23, 2026, due to heavy rainfall causing potential flooding.
Read this weather record in 30 seconds
- Record type
- Flash Flood Warning
- Affected area
- Southwestern Iowa
- Issued
- May 1, 2026
- Issuing authority
- NWS Omaha/Valley NE
Flood notices turn on location and timing. Treat the named area as this record's scope; do not assume nearby counties, parishes, or waterways were included.
Record status: historical. It was issued 3 months ago; use the issuing agency's live warning service for current conditions in Southwestern Iowa.
Alert Details
A Flash Flood Warning has been issued by the National Weather Service (NWS) Omaha/Valley NE. It is effective from 5:56 PM CDT on April 23, 2026, until 9:00 PM CDT on the same day.
Affected Areas
The warning affects northwestern Montgomery County in Iowa and southeastern Pottawattamie County in Iowa. Some locations that may experience flash flooding include Farm Creek Public Wildlife Area.
What You Should Do
Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. In hilly terrain, do not attempt to cross flooded roads; find an alternate route.
Expected Conditions
Thunderstorms are producing heavy rain across the warned area. Between 2 and 3 inches of rain have already fallen, with an expected rainfall rate of 2 to 3 inches in 1 hour. Additional rainfall amounts of 1 to 2 inches are possible. Flash flooding is ongoing or expected to begin shortly, caused by thunderstorms.
Timeline
The alert is effective from 5:56 PM CDT on April 23, 2026, and expires at 9:00 PM CDT on April 23, 2026.
Original source: NOAA Official Notice ↗
Related Weather Alerts
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Two Areazine-derived peer sets for this NWS weather alert: nearest notices by body length and by same severity near the same agency date. Peers come from other categories so they are not the same-feed Related list above.
Similar body length
Nearest notices by article body length (1,068 characters here).
Similar severity timing
Same severity (high) notices issued closest in time to May 1, 2026.
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