Winter Storm Warnings in Iowa
417 winter storm warnings since 1986. 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 since 1986. Tap one for its archive.
- Winter Storm Warnings
- 417
- Busiest year
- 201833 winter storm warnings
- Average year
- 19over 22 years on file
Over time
By year
Before late 2005 the archive holds only tornado, severe thunderstorm, flash flood and marine warnings, and from 1997 SPC's watches, so the jump that year is the archive widening, not the weather.
By month of the year
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Cerro Gordo County70
- Hancock County69
- Worth County69
- Clayton County69
- Mitchell County68
- Winnebago County67
- Howard County67
- Jackson County67
- Chickasaw County66
- Dubuque County66
- Fayette County66
- Floyd County65
- Kossuth County64
- Jones County64
- Linn County64
- Black Hawk County63
- Buchanan County63
- Clinton County63
- Winneshiek County63
- Bremer County62
- Delaware County62
- Hardin County62
- Grundy County61
- Benton County61
- Butler County60
- Franklin County60
- Emmet County58
- Palo Alto County58
- Allamakee County58
- Wright County57
- Humboldt County56
- Cedar County56
- Tama County55
- Marshall County54
- Hamilton County52
- Webster County51
- Johnson County50
- Story County50
- Scott County50
- Muscatine County49
59 more counties
- Iowa County47
- Pocahontas County47
- Calhoun County46
- Boone County45
- Dallas County45
- Dickinson County44
- Polk County44
- Washington County44
- Sac County43
- Lyon County42
- Mahaska County42
- Keokuk County42
- Poweshiek County42
- Osceola County41
- Jasper County41
- Madison County41
- Clay County40
- Carroll County40
- Davis County40
- Mills County40
- Pottawattamie County40
- Guthrie County40
- Louisa County40
- Marion County40
- Warren County40
- Sioux County39
- Appanoose County39
- Monroe County39
- Union County39
- Wapello County39
- Jefferson County39
- Buena Vista County38
- Cherokee County38
- O'Brien County38
- Crawford County38
- Ringgold County38
- Wayne County38
- Adair County38
- Clarke County37
- Decatur County37
- Des Moines County37
- Greene County37
- Harrison County37
- Henry County37
- Adams County36
- Montgomery County36
- Shelby County36
- Page County35
- Van Buren County35
- Audubon County35
- Lucas County35
- Plymouth County34
- Fremont County34
- Lee County34
- Cass County34
- Taylor County33
- Ida County32
- Monona County32
- Woodbury County29
The latest winter storm warnings
The most recent on file, newest first.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 14, 11:16 AM CDT | Winter Storm Warning | OAX | Monona, Shelby | 12 hr |
| Feb 19, 1:38 PM CST | Winter Storm Warning | DVN | Benton, Buchanan, Delaware, Dubuque | 19 hr |
| Feb 19, 11:30 AM CST | Winter Storm Warning | ARX | Allamakee, Chickasaw, Clayton, Fayette, Floyd, Howard and 1 more | 25 hr |
| Feb 19, 10:45 AM CST | Winter Storm Warning | DMX | Audubon, Black Hawk, Boone, Bremer, Butler, Carroll and 14 more | 22 hr |
| Feb 18, 9:06 PM CST | Winter Storm Warning | OAX | Harrison, Mills, Pottawattamie, Shelby | 31 hr |
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. Rebuilt daily.