Alert archive / Iowa / River Flood Warnings in 2026

River Flood Warning 16, NWS Des Moines, IA

August 16, 2026Polk County, Warren County, Iowa

NWS Des Moines, IA issued this river flood warning at Aug 16, 2026, 10:54 AM CDT for Polk County, Warren County, Iowa. It was in force for 23 hr.

The area

The counties it named.

The facts

Issued
Aug 16, 2026, 10:54 AM CDT (15:54 UTC)
Expired
Aug 17, 2026, 10:14 AM CDT
In force
23 hr
Issued by
NWS Des Moines, IA
Area
Storm-based polygon

Counties Polk County, IA, Warren County, IA

The radar

The Des Moines radar (KDMX), 28 km from the middle of the area, began a volume at 15:54 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The river

Written for the forecast point North River near Norwalk (NRWI4). The gauge peaked at 21.35 ft at Aug 17, 2026, 11:00 AM CDT.

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Action stage
17 ft
Minor stage
22 ft
Moderate stage
25 ft
Major stage
26 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 05486000, one reading an hour, from a day before the product to a day after it ended. Flood stages are today's.

Nearby

River Flood Warnings in Iowa, 2026Every river flood warning in 2026

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive; the gauge from the NWS water service and the USGS.