Alert archive / Iowa / Freeze Warnings / 2026
Freeze Warnings in Iowa, May 2026
4 freeze warnings in May 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 freeze warnings reaches back to 2005.
Freeze Warnings by county
Each county as a circle sized by its count in May 2026. Tap one for its archive.
- Freeze Warnings
- 4
- Busiest day
- May 1, 20264 freeze warnings
Over time
By day
Days in UTC, the clock the archive keeps.
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 |
|---|---|---|---|---|
| May 1, 2:25 AM CDT | Freeze Warning | ARX | Allamakee, Chickasaw, Clayton, Fayette, Floyd, Howard and 2 more | 30 hr |
| May 1, 12:36 PM CDT | Freeze Warning | OAX | Monona | 19 hr |
| May 1, 1:06 PM CDT | Freeze Warning | FSD | Buena Vista, Cherokee, Clay, Dickinson, Ida, Lyon and 5 more | 19 hr |
| May 1, 1:19 PM CDT | Freeze Warning | DMX | Boone, Bremer, Butler, Calhoun, Carroll, Cerro Gordo and 16 more | 19 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Allamakee County1
- Chickasaw County1
- Clayton County1
- Fayette County1
- Floyd County1
- Howard County1
- Mitchell County1
- Winneshiek County1
- Monona County1
- Buena Vista County1
- Cherokee County1
- Clay County1
- Dickinson County1
- Ida County1
- Lyon County1
- O'Brien County1
- Osceola County1
- Plymouth County1
- Sioux County1
- Woodbury County1
- Boone County1
- Bremer County1
- Butler County1
- Calhoun County1
- Carroll County1
- Cerro Gordo County1
- Crawford County1
- Emmet County1
- Franklin County1
- Greene County1
- Hamilton County1
- Hancock County1
- Hardin County1
- Humboldt County1
- Kossuth County1
- Palo Alto County1
- Pocahontas County1
- Sac County1
- Webster County1
- Winnebago County1
2 more counties
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.