Alert archive / Iowa / Winter Storm Warnings / 2018
Winter Storm Warnings in Iowa, March 2018
6 winter storm warnings in March 2018. 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 2018. Tap one for its archive.
- Winter Storm Warnings
- 6
- Busiest day
- March 23, 20184 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 4, 3:15 PM CST | Winter Storm Warning | ARX | Allamakee, Howard, Winneshiek | 36 hr |
| Mar 23, 3:30 AM CDT | Winter Storm Warning | DVN | Benton, Buchanan, Cedar, Clinton, Delaware, Dubuque and 7 more | 40 hr |
| Mar 23, 3:31 AM CDT | Winter Storm Warning | FSD | Dickinson | 33 hr |
| Mar 23, 3:50 AM CDT | Winter Storm Warning | ARX | Chickasaw, Clayton, Fayette, Floyd, Howard, Mitchell and 1 more | 36 hr |
| Mar 23, 4:00 AM CDT | Winter Storm Warning | DMX | Black Hawk, Bremer, Butler, Cerro Gordo, Emmet, Franklin and 16 more | 39 hr |
| Mar 23, 9:27 PM CDT | Winter Storm Warning | DVN | Benton, Buchanan, Cedar, Clinton, Delaware, Dubuque and 4 more | 22 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Howard County2
- Winneshiek County2
- Benton County2
- Buchanan County2
- Cedar County2
- Clinton County2
- Delaware County2
- Dubuque County2
- Jackson County2
- Jones County2
- Linn County2
- Scott County2
- Allamakee County1
- Iowa County1
- Johnson County1
- Muscatine County1
- Dickinson County1
- Chickasaw County1
- Clayton County1
- Fayette County1
- Floyd County1
- Mitchell County1
- Black Hawk County1
- Bremer County1
- Butler County1
- Cerro Gordo County1
- Emmet County1
- Franklin County1
- Grundy County1
- Hamilton County1
- Hancock County1
- Hardin County1
- Humboldt County1
- Kossuth County1
- Marshall County1
- Palo Alto County1
- Pocahontas County1
- Poweshiek County1
- Story County1
- Tama County1
4 more counties
Nearby
Alerts in force nowTornadoes on recordThe radar archive20172019
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.