Alert archive / Iowa / Winter Storm Warnings
Winter Storm Warnings in Iowa, 2026
5 winter storm warnings in 2026. An alert counts here when it covered any part of the state, so the counties below add up to more than the state. The archive of winter storm warnings reaches back to 2005.
Winter Storm Warnings by county
Each county as a circle sized by its count in 2026. Tap one for its archive.
- Winter Storm Warnings
- 5
- Busiest month
- February4 winter storm warnings
- Busiest day
- February 19, 20264 winter storm warnings
Over time
By month
The alerts
Every alert, in the order issued. Times are local, Central Time. Each opens its own page with the text, the map, the radar and the sounding.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 18, 9:06 PM CST | Winter Storm Warning | OAX | Harrison, Mills, Pottawattamie, Shelby | 31 hr |
| Feb 19, 10:45 AM CST | Winter Storm Warning | DMX | Audubon, Black Hawk, Boone, Bremer, Butler, Carroll and 14 more | 22 hr |
| Feb 19, 11:30 AM CST | Winter Storm Warning | ARX | Allamakee, Chickasaw, Clayton, Fayette, Floyd, Howard and 1 more | 25 hr |
| Feb 19, 1:38 PM CST | Winter Storm Warning | DVN | Benton, Buchanan, Delaware, Dubuque | 19 hr |
| Mar 14, 11:16 AM CDT | Winter Storm Warning | OAX | Monona, Shelby | 12 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Shelby County2
- Harrison County1
- Mills County1
- Pottawattamie County1
- Audubon County1
- Black Hawk County1
- Boone County1
- Bremer County1
- Butler County1
- Carroll County1
- Cass County1
- Crawford County1
- Dallas County1
- Franklin County1
- Greene County1
- Grundy County1
- Guthrie County1
- Hamilton County1
- Hardin County1
- Marshall County1
- Polk County1
- Story County1
- Tama County1
- Webster County1
- Allamakee County1
- Chickasaw County1
- Clayton County1
- Fayette County1
- Floyd County1
- Howard County1
- Winneshiek County1
- Benton County1
- Buchanan County1
- Delaware County1
- Dubuque County1
- Monona County1
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Sources
National Weather Service watches, warnings, advisories and statements from the Iowa Environmental Mesonet's VTEC archive, which reconstructs tornado, severe thunderstorm, flash flood and marine warnings back to 1986 from the NWS text archive. Storm Prediction Center watches and mesoscale discussions from SPC's archive through the Mesonet. County centers from the US Census Bureau. Warning verification from the Mesonet's Cow. Rebuilt daily.