Alert archive / Iowa / 2011
Weather alerts in Iowa, December 2011
20 weather alerts in December 2011, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered any part of the state, so the counties below add up to more than the state.
Weather alerts by county
Each county as a circle sized by its count in December 2011. Tap one for its archive.
- Alerts
- 20
- Warnings
- 1
- Watches
- 2
- Advisories
- 16
- Busiest day
- December 3, 20115 alerts
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 |
|---|---|---|---|---|
| Dec 2, 3:28 AM CST | Winter Weather Advisory | FSD | Buena Vista, Cherokee, Clay, Dickinson, Ida, Lyon and 5 more | 45 hr |
| Dec 2, 3:49 AM CST | Winter Storm Watch | DMX | Audubon, Calhoun, Carroll, Cerro Gordo, Crawford, Emmet and 13 more | 24 hr |
| Dec 2, 4:00 AM CST | Winter Storm Watch | ARX | Floyd, Howard, Mitchell | 24 hr |
| Dec 3, 1:38 AM CST | Freezing Rain Advisory | ARX | Allamakee, Chickasaw, Clayton, Fayette, Floyd, Howard and 2 more | 5 hr |
| Dec 3, 3:40 AM CST | Winter Weather Advisory | DMX | Audubon, Calhoun, Carroll, Cerro Gordo, Crawford, Emmet and 13 more | 20 hr |
| Dec 3, 3:41 AM CST | Winter Weather Advisory | OAX | Harrison, Monona, Pottawattamie, Shelby | 19 hr |
| Dec 3, 4:03 AM CST | Winter Weather Advisory | ARX | Allamakee, Chickasaw, Floyd, Howard, Mitchell, Winneshiek | 24 hr |
| Dec 3, 10:37 AM CST | Mesoscale Discussion | SPC | Buena Vista, Calhoun, Cherokee, Clay, Crawford, Emmet and 11 more | 5 hr |
| Dec 3, 6:15 PM CST | Winter Storm Warning | DMX | Calhoun, Carroll, Cerro Gordo, Crawford, Hancock, Humboldt and 4 more | 6 hr |
| Dec 6, 7:45 AM CST | Winter Weather Advisory | DVN | Cedar, Clinton, Delaware, Des Moines, Dubuque, Henry and 13 more | 6 hr |
| Dec 14, 11:49 AM CST | Dense Fog Advisory | DVN | Benton, Buchanan, Delaware, Dubuque, Jackson, Jones and 1 more | 2 hr |
| Dec 14, 3:03 PM CST | Dense Fog Advisory | ARX | Allamakee, Chickasaw, Clayton, Fayette, Floyd, Howard and 2 more | 8 hr |
| Dec 14, 3:16 PM CST | Dense Fog Advisory | DMX | Black Hawk, Boone, Bremer, Butler, Cerro Gordo, Franklin and 13 more | 5 hr |
| Dec 26, 3:51 AM CST | Wind Advisory | ARX | Chickasaw, Floyd, Howard, Mitchell | 11 hr |
| Dec 26, 3:54 AM CST | Wind Advisory | DMX | Cerro Gordo, Emmet, Hancock, Kossuth, Palo Alto, Winnebago and 1 more | 11 hr |
| Dec 29, 9:17 PM CST | Winter Weather Advisory | DMX | Cerro Gordo, Winnebago, Worth | 12 hr |
| Dec 29, 9:25 PM CST | Winter Weather Advisory | ARX | Allamakee, Chickasaw, Clayton, Fayette, Floyd, Howard and 2 more | 15 hr |
| Dec 30, 3:15 PM CST | Wind Advisory | FSD | Cherokee, Ida, Lyon, O'Brien, Osceola, Plymouth and 2 more | 57 hr |
| Dec 30, 3:54 PM CST | Wind Advisory | OAX | Fremont, Harrison, Mills, Monona, Montgomery, Page and 2 more | 35 hr |
| Dec 31, 3:48 AM CST | Winter Weather Advisory | FSD | Buena Vista, Cherokee, Clay, Dickinson, Ida, O'Brien and 1 more | 20 hr |
By product
Every kind of product issued here, grouped by hazard. Each opens the same place narrowed to that product.
| Product | Alerts |
|---|---|
| Severe storms | |
| Mesoscale Discussion | 1 |
| Winter | |
| Winter Storm Warning | 1 |
| Winter Storm Watch | 2 |
| Freezing Rain Advisory | 1 |
| Winter Weather Advisory | 8 |
| Wind and dust | |
| Wind Advisory | 4 |
| Fog and smoke | |
| Dense Fog Advisory | 3 |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Cerro Gordo County6
- Hancock County6
- Winnebago County6
- Worth County6
- Floyd County6
- Howard County6
- Mitchell County6
- Humboldt County5
- Chickasaw County5
- Cherokee County4
- Ida County4
- Calhoun County4
- Crawford County4
- Emmet County4
- Kossuth County4
- Palo Alto County4
- Sac County4
- Webster County4
- Wright County4
- Allamakee County4
- Winneshiek County4
- Buena Vista County3
- Clay County3
- O'Brien County3
- Osceola County3
- Woodbury County3
- Carroll County3
- Franklin County3
- Greene County3
- Hamilton County3
- Pocahontas County3
- Clayton County3
- Fayette County3
- Harrison County3
- Monona County3
- Dickinson County2
- Lyon County2
- Plymouth County2
- Sioux County2
- Audubon County2
36 more counties
- Pottawattamie County2
- Shelby County2
- Delaware County2
- Dubuque County2
- Jackson County2
- Jones County2
- Linn County2
- Cedar County1
- Clinton County1
- Des Moines County1
- Henry County1
- Iowa County1
- Jefferson County1
- Johnson County1
- Keokuk County1
- Lee County1
- Louisa County1
- Muscatine County1
- Scott County1
- Van Buren County1
- Washington County1
- Benton County1
- Buchanan County1
- Black Hawk County1
- Boone County1
- Bremer County1
- Butler County1
- Grundy County1
- Hardin County1
- Marshall County1
- Story County1
- Tama County1
- Fremont County1
- Mills County1
- Montgomery County1
- Page County1
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.