Alert archive / Iowa / Winter Storm Warnings / 2021
Winter Storm Warnings in Iowa, March 2021
4 winter storm warnings in March 2021. 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 March 2021. Tap one for its archive.
- Winter Storm Warnings
- 4
- Busiest day
- March 14, 20213 winter storm 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 |
|---|---|---|---|---|
| Mar 14, 4:02 AM CDT | Winter Storm Warning | DMX | Black Hawk, Bremer, Butler, Calhoun, Cerro Gordo, Emmet and 14 more | 36 hr |
| Mar 14, 4:03 AM CDT | Winter Storm Warning | FSD | Buena Vista, Cherokee, Clay, Dickinson, Lyon, O'Brien and 2 more | 32 hr |
| Mar 14, 4:06 AM CDT | Winter Storm Warning | ARX | Allamakee, Chickasaw, Clayton, Fayette, Floyd, Howard and 2 more | 39 hr |
| Mar 15, 3:32 AM CDT | Winter Storm Warning | DVN | Benton, Buchanan, Clinton, Delaware, Dubuque, Jackson and 2 more | 15 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Black Hawk County1
- Bremer County1
- Butler County1
- Calhoun County1
- Cerro Gordo County1
- Emmet County1
- Franklin County1
- Grundy County1
- Hamilton County1
- Hancock County1
- Hardin County1
- Humboldt County1
- Kossuth County1
- Palo Alto County1
- Pocahontas County1
- Sac County1
- Webster County1
- Winnebago County1
- Worth County1
- Wright County1
- Buena Vista County1
- Cherokee County1
- Clay County1
- Dickinson County1
- Lyon County1
- O'Brien County1
- Osceola County1
- Sioux County1
- Allamakee County1
- Chickasaw County1
- Clayton County1
- Fayette County1
- Floyd County1
- Howard County1
- Mitchell County1
- Winneshiek County1
- Benton County1
- Buchanan County1
- Clinton County1
- Delaware County1
4 more counties
Nearby
Alerts in force nowTornadoes on recordThe radar archive20202022
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. Rebuilt daily.