Alert archive / Iowa / Freeze Warnings
Freeze Warnings in Iowa, 2011
9 freeze 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 freeze warnings reaches back to 2005.
Freeze Warnings by county
Each county as a circle sized by its count in 2011. Tap one for its archive.
- Freeze Warnings
- 9
- Busiest month
- October5 freeze warnings
- Busiest day
- October 20, 20113 freeze 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 |
|---|---|---|---|---|
| May 3, 3:15 PM CDT | Freeze Warning | DVN | Benton, Buchanan, Cedar, Clinton, Delaware, Des Moines and 15 more | 16 hr |
| May 3, 4:05 PM CDT | Freeze Warning | DMX | Appanoose, Audubon, Black Hawk, Bremer, Butler, Calhoun and 25 more | 15 hr |
| Sep 13, 3:12 PM CDT | Freeze Warning | FSD | Clay, Dickinson, Lyon, O'Brien, Osceola, Sioux | 41 hr |
| Sep 14, 3:52 AM CDT | Freeze Warning | DMX | Cerro Gordo, Emmet, Hancock, Kossuth, Palo Alto, Winnebago and 1 more | 28 hr |
| Oct 18, 3:07 PM CDT | Freeze Warning | OAX | Fremont, Harrison, Mills, Monona, Montgomery, Page and 2 more | 18 hr |
| Oct 18, 9:30 PM CDT | Freeze Warning | DMX | Adair, Adams, Audubon, Calhoun, Carroll, Cass and 18 more | 11 hr |
| Oct 20, 3:20 AM CDT | Freeze Warning | DVN | Benton, Buchanan, Cedar, Clinton, Delaware, Des Moines and 15 more | 30 hr |
| Oct 20, 3:40 AM CDT | Freeze Warning | ARX | Allamakee, Chickasaw, Clayton, Fayette, Floyd, Howard and 2 more | 29 hr |
| Oct 20, 3:42 AM CDT | Freeze Warning | DMX | Appanoose, Black Hawk, Boone, Bremer, Butler, Clarke and 19 more | 29 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Emmet County3
- Hancock County3
- Kossuth County3
- Palo Alto County3
- Winnebago County3
- Benton County2
- Buchanan County2
- Cedar County2
- Clinton County2
- Delaware County2
- Des Moines County2
- Dubuque County2
- Henry County2
- Iowa County2
- Jackson County2
- Jefferson County2
- Johnson County2
- Jones County2
- Keokuk County2
- Lee County2
- Linn County2
- Louisa County2
- Muscatine County2
- Scott County2
- Van Buren County2
- Washington County2
- Appanoose County2
- Audubon County2
- Black Hawk County2
- Bremer County2
- Butler County2
- Calhoun County2
- Carroll County2
- Cass County2
- Cerro Gordo County2
- Crawford County2
- Davis County2
- Grundy County2
- Hamilton County2
- Hardin County2
54 more counties
- Humboldt County2
- Mahaska County2
- Monroe County2
- Pocahontas County2
- Poweshiek County2
- Sac County2
- Tama County2
- Wapello County2
- Webster County2
- Worth County2
- Wright County2
- Decatur County2
- Franklin County1
- Clay County1
- Dickinson County1
- Lyon County1
- O'Brien County1
- Osceola County1
- Sioux County1
- Fremont County1
- Harrison County1
- Mills County1
- Monona County1
- Montgomery County1
- Page County1
- Pottawattamie County1
- Shelby County1
- Adair County1
- Adams County1
- Greene County1
- Guthrie County1
- Ringgold County1
- Taylor County1
- Union County1
- Allamakee County1
- Chickasaw County1
- Clayton County1
- Fayette County1
- Floyd County1
- Howard County1
- Mitchell County1
- Winneshiek County1
- Boone County1
- Clarke County1
- Dallas County1
- Jasper County1
- Lucas County1
- Madison County1
- Marion County1
- Marshall County1
- Polk County1
- Story County1
- Warren County1
- Wayne 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.