Alert USA
weather NWS severe Polk, IA September 9, 2026 at 7:22 AM

Flood Warning

...Forecast flooding changed from Minor to Moderate severity and increased in duration for the following rivers in Iowa...

Walnut Creek at Des Moines 63rd St affecting Polk County.

* WHAT...Moderate flooding is occurring and moderate flooding is forecast.

* WHERE...Walnut Creek at Des Moines 63rd St, or from 1 1/3 miles upstream of North Walnut Creek to the Raccoon River.

* WHEN...Until this evening.

* IMPACTS...At 16.5 feet, The Grand Ave overhead gates are closed.

* ADDITIONAL DETAILS...

Flooding in Polk, IA can cut off roads with little warning, damage homes near low-lying areas, and disrupt power and water service. Even a few inches of moving water can carry away a vehicle.

This report is based on information from NWS, monitored by Alert USA's verified emergency feed.

Alert USA anticipates a high chance of travel disruptions, elevated property risk in low-lying areas, and possible power outages while the event is active.

Recommended steps: avoid flooded roads — turn around, don't drown; move to higher ground if you are in a low-lying area; charge phones and prepare for power loss; check on family and neighbors.

Alert USA is tracking this flood event and will update this report as verified information becomes available.

Verified by Alert USA • NWS

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