Blizzard Warnings in Iowa
127 blizzard 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 blizzard warnings reaches back to 2005.
Blizzard Warnings by county
Each county as a circle sized by its count since 1986. Tap one for its archive.
- Blizzard Warnings
- 127
- Busiest year
- 200913 blizzard warnings
- Average year
- 6over 20 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.
- Winnebago County35
- Cerro Gordo County34
- Emmet County33
- Hancock County33
- Kossuth County33
- Palo Alto County33
- Worth County33
- Dickinson County31
- Wright County31
- Humboldt County30
- Clay County29
- Franklin County29
- Osceola County29
- Pocahontas County29
- O'Brien County27
- Sac County26
- Sioux County26
- Webster County26
- Calhoun County25
- Lyon County25
- Butler County24
- Cherokee County24
- Hamilton County24
- Plymouth County24
- Buena Vista County23
- Hardin County23
- Woodbury County23
- Bremer County22
- Crawford County22
- Grundy County22
- Ida County22
- Carroll County21
- Greene County21
- Black Hawk County20
- Floyd County20
- Mitchell County20
- Story County20
- Chickasaw County19
- Howard County19
- Boone County18
59 more counties
- Audubon County17
- Marshall County17
- Dallas County16
- Guthrie County16
- Monona County16
- Polk County15
- Tama County15
- Jasper County15
- Adair County14
- Fayette County14
- Winneshiek County14
- Poweshiek County14
- Benton County13
- Buchanan County13
- Cass County13
- Delaware County13
- Jones County13
- Linn County13
- Madison County13
- Warren County13
- Adams County12
- Dubuque County12
- Jackson County12
- Shelby County12
- Clinton County12
- Marion County12
- Harrison County11
- Pottawattamie County11
- Ringgold County11
- Taylor County11
- Union County11
- Cedar County11
- Mahaska County11
- Scott County11
- Fremont County10
- Mills County10
- Montgomery County10
- Page County10
- Clarke County10
- Decatur County10
- Iowa County10
- Johnson County10
- Keokuk County10
- Louisa County10
- Lucas County10
- Muscatine County10
- Washington County10
- Clayton County9
- Appanoose County9
- Davis County9
- Monroe County9
- Wapello County9
- Allamakee County8
- Des Moines County8
- Henry County8
- Jefferson County8
- Lee County8
- Van Buren County8
- Wayne County8
The latest blizzard warnings
The most recent on file, newest first.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 14, 11:35 PM CDT | Blizzard Warning | OAX | Monona, Shelby | 22 hr |
| Mar 14, 12:46 PM CDT | Blizzard Warning | ARX | Allamakee, Chickasaw, Clayton, Fayette, Floyd, Howard and 2 more | 46 hr |
| Mar 14, 12:33 PM CDT | Blizzard Warning | DVN | Benton, Buchanan, Cedar, Clinton, Delaware, Des Moines and 15 more | 48 hr |
| Mar 14, 11:34 AM CDT | Blizzard Warning | DMX | Adair, Adams, Appanoose, Audubon, Black Hawk, Boone and 45 more | 43 hr |
| Mar 13, 9:20 PM CDT | Blizzard Warning | FSD | Buena Vista, Cherokee, Clay, Dickinson, Ida, Lyon and 5 more | 56 hr |
| Jan 21, 11:24 AM CST | Blizzard Warning | DVN | Benton, Buchanan, Delaware, Jones, Linn | 10 hr |
| Jan 21, 10:30 AM CST | Blizzard Warning | ARX | Chickasaw, Floyd, Mitchell | 9 hr |
| Jan 21, 10:26 AM CST | Blizzard Warning | DMX | Black Hawk, Bremer, Butler, Cerro Gordo, Emmet, Franklin and 9 more | 9 hr |
| Jan 21, 10:13 AM CST | Blizzard Warning | FSD | Clay, Dickinson, Osceola | 8 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. Warning verification from the Mesonet's Cow. Rebuilt daily.