Alert archive / Iowa / Winter Storm Warnings
Winter Storm Warnings in Iowa, 2011
11 winter storm warnings in 2011. 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 2011. Tap one for its archive.
- Winter Storm Warnings
- 11
- Busiest month
- February6 winter storm warnings
- Busiest day
- February 19, 20113 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 |
|---|---|---|---|---|
| Jan 22, 6:25 PM CST | Winter Storm Warning | OAX | Fremont, Mills, Pottawattamie | 10 hr |
| Jan 30, 4:55 PM CST | Winter Storm Warning | OAX | Fremont, Harrison, Mills, Monona, Montgomery, Page and 2 more | 58 hr |
| Jan 31, 4:20 PM CST | Winter Storm Warning | DMX | Adair, Adams, Audubon, Boone, Bremer, Butler and 9 more | 19 hr |
| Feb 1, 4:37 AM CST | Winter Storm Warning | ARX | Allamakee, Clayton, Fayette | 29 hr |
| Feb 19, 4:02 AM CST | Winter Storm Warning | DMX | Bremer, Cerro Gordo, Emmet, Hancock, Kossuth, Palo Alto and 2 more | 33 hr |
| Feb 19, 4:03 AM CST | Winter Storm Warning | ARX | Allamakee, Chickasaw, Clayton, Fayette, Floyd, Howard and 2 more | 56 hr |
| Feb 19, 4:07 AM CST | Winter Storm Warning | FSD | Lyon | 41 hr |
| Feb 24, 3:20 AM CST | Winter Storm Warning | DVN | Des Moines, Henry, Jefferson, Lee, Van Buren | 17 hr |
| Feb 24, 12:05 PM CST | Winter Storm Warning | DMX | Appanoose, Clarke, Davis, Decatur, Lucas, Mahaska and 6 more | 12 hr |
| Mar 8, 3:39 PM CST | Winter Storm Warning | DMX | Black Hawk, Bremer, Butler, Cerro Gordo, Franklin, Grundy and 4 more | 18 hr |
| Dec 3, 6:15 PM CST | Winter Storm Warning | DMX | Calhoun, Carroll, Cerro Gordo, Crawford, Hancock, Humboldt and 4 more | 6 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Bremer County3
- Cerro Gordo County3
- Fremont County2
- Mills County2
- Pottawattamie County2
- Butler County2
- Hardin County2
- Ringgold County2
- Allamakee County2
- Clayton County2
- Fayette County2
- Hancock County2
- Worth County2
- Harrison County1
- Monona County1
- Montgomery County1
- Page County1
- Shelby County1
- Adair County1
- Adams County1
- Audubon County1
- Boone County1
- Cass County1
- Dallas County1
- Greene County1
- Guthrie County1
- Madison County1
- Taylor County1
- Union County1
- Emmet County1
- Kossuth County1
- Palo Alto County1
- Winnebago County1
- Chickasaw County1
- Floyd County1
- Howard County1
- Mitchell County1
- Winneshiek County1
- Lyon County1
- Des Moines County1
28 more counties
- Henry County1
- Jefferson County1
- Lee County1
- Van Buren County1
- Appanoose County1
- Clarke County1
- Davis County1
- Decatur County1
- Lucas County1
- Mahaska County1
- Marion County1
- Monroe County1
- Poweshiek County1
- Wapello County1
- Wayne County1
- Black Hawk County1
- Franklin County1
- Grundy County1
- Marshall County1
- Story County1
- Tama County1
- Calhoun County1
- Carroll County1
- Crawford County1
- Humboldt County1
- Sac County1
- Webster County1
- Wright County1
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordThe radar archive20102012
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.