Alert archive / Iowa / River Flood Warnings in 2026
River Flood Warning 36, NWS Des Moines, IA
NWS Des Moines, IA issued this river flood warning at Oct 1, 2026, 10:35 AM CDT for Story County, Iowa. It took effect at Oct 1, 2026, 1:00 PM CDT. It was in force for 41 hr.
The area
The counties it named.
The facts
- Issued
- Oct 1, 2026, 10:35 AM CDT (15:35 UTC)
- In effect from
- Oct 1, 2026, 1:00 PM CDT
- Expired
- Oct 3, 2026, 5:38 AM CDT
- In force
- 41 hr
- Issued by
- NWS Des Moines, IA
- Area
- Storm-based polygon
- Flood severity
- Minor
County Story County, IA
The radar
The Des Moines radar (KDMX), 40 km from the middle of the area, began a volume at 15:39 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 South Skunk River near Ames W Riverside Rd (AMEI4). The gauge peaked at 13.93 ft at Oct 2, 2026, 3:00 PM CDT.
- Action stage
- 11 ft
- Minor stage
- 12.5 ft
- Moderate stage
- 16 ft
- Major stage
- 16.5 ft
This gauge today: stage, forecast and historic crests
Stage from the USGS instantaneous record for site 05470000, one reading an hour, from a day before the product to a day after it ended. Flood stages are today's.
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 | 9 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 | 4 days |
| Sep 30, 10:22 PM CDT | River Flood Warning | DMX | Jasper, Marion, Polk | 4 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 | 60 hr |
| Oct 1, 1:19 AM CDT | Flash Flood Warning | DMX | Audubon, Calhoun, Carroll, Crawford, Greene, Guthrie | 6 hr |
| Oct 1, 4:38 AM CDT | Flash Flood Warning | DMX | Black Hawk, Butler, Grundy, Tama | 6 hr |
| Oct 1, 10:35 AM CDT | River Flood Warning | DMX | Polk, Story | 48 hr |
| Oct 1, 10:41 AM CDT | Areal Flood Warning | DMX | Black Hawk, Butler, Grundy, Tama | 24 hr |
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.