Alert archive / Iowa / Flash Flood Warnings in 2026

Flash Flood Warning 32, NWS Des Moines, IA

October 1, 20266 counties in Iowa

NWS Des Moines, IA issued this flash flood warning at Oct 1, 2026, 1:19 AM CDT for 6 counties in Iowa. It was in force for 6 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Oct 1, 2026, 1:19 AM CDT (06:19 UTC)
Expired: Oct 1, 2026, 7:15 AM CDT
In force: 6 hr
Issued by: NWS Des Moines, IA
Area: Storm-based polygon
Flood severity: None

Counties Audubon County, IA, Calhoun County, IA, Carroll County, IA, Crawford County, IA, Greene County, IA, Guthrie County, IA

The radar

The Des Moines radar (KDMX), 92 km from the middle of the area, began a volume at 06:19 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 office that day

Everything else NWS Des Moines, IA issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Sep 30, 8:36 PM CDT	River Flood Warning	DMX	Cass	30 hr
Sep 30, 8:36 PM CDT	River Flood Warning	DMX	Decatur	54 hr
Sep 30, 8:52 PM CDT	River Flood Warning	DMX	Black Hawk	67 hr
Sep 30, 10:22 PM CDT	River Flood Warning	DMX	Jasper, Marion, Polk	3 days
Sep 30, 10:22 PM CDT	River Flood Warning	DMX	Warren	21 hr
Sep 30, 10:22 PM CDT	River Flood Warning	DMX	Polk, Warren	64 hr
Sep 30, 10:22 PM CDT	River Flood Warning	DMX	Marion, Polk, Warren	4 days
Sep 30, 10:22 PM CDT	River Flood Warning	DMX	Dallas	65 hr
Oct 1, 4:38 AM CDT	Flash Flood Warning	DMX	Black Hawk, Butler, Grundy, Tama	6 hr

Nearby

Flash Flood Warnings in Iowa, 2026 Every flash 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.