Alert archive / Iowa / 2012
Weather alerts in Iowa, March 2012
74 weather alerts in March 2012, 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 March 2012. Tap one for its archive.
- Alerts
- 74
- Warnings
- 26
- Watches
- 7
- Advisories
- 19
- Busiest day
- March 30, 201226 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 |
|---|---|---|---|---|
| Mar 2, 3:57 AM CST | Winter Weather Advisory | DVN | Benton, Cedar, Clinton, Delaware, Dubuque, Henry and 11 more | 14 hr |
| Mar 2, 11:06 AM CST | Mesoscale Discussion | SPC | Cedar, Clinton, Davis, Delaware, Des Moines, Dubuque and 15 more | 4 hr |
| Mar 3, 2:50 PM CST | Wind Advisory | FSD | Ida, Plymouth, Sioux, Woodbury | 27 hr |
| Mar 3, 8:17 PM CST | Wind Advisory | OAX | Fremont, Harrison, Mills, Monona, Montgomery, Page and 2 more | 22 hr |
| Mar 3, 9:19 PM CST | Wind Advisory | DMX | Adair, Adams, Audubon, Carroll, Cass, Crawford and 5 more | 21 hr |
| Mar 7, 8:59 PM CST | Special Weather Statement | DVN | Cedar, Dubuque, Jackson, Johnson, Jones, Linn | 61 min |
| Mar 9, 3:41 PM CST | Fire Weather Watch | OAX | Monona | 12 hr |
| Mar 9, 3:47 PM CST | Fire Weather Watch | FSD | 12 hr | |
| Mar 9, 3:47 PM CST | Red Flag Warning | FSD | 26 hr | |
| Mar 10, 3:30 AM CST | Red Flag Warning | OAX | Harrison, Monona | 15 hr |
| Mar 10, 5:06 AM CST | Red Flag Warning | ARX | Allamakee, Chickasaw, Clayton, Fayette, Floyd, Howard and 2 more | 13 hr |
| Mar 15, 5:21 AM CDT | Dense Fog Advisory | ARX | Allamakee, Clayton, Fayette | 6 hr |
| Mar 16, 5:24 AM CDT | Dense Fog Advisory | OAX | Harrison, Monona, Montgomery, Page, Pottawattamie, Shelby | 6 hr |
| Mar 16, 5:35 AM CDT | Dense Fog Advisory | FSD | Buena Vista, Cherokee, Clay, Dickinson, Ida, Lyon and 5 more | 5 hr |
| Mar 16, 6:50 AM CDT | Dense Fog Advisory | DMX | Adair, Adams, Audubon, Calhoun, Carroll, Cass and 9 more | 3 hr |
| Mar 19, 1:34 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Audubon, Boone, Buena Vista, Calhoun and 30 more | 116 min |
| Mar 19, 3:40 PM CDT | Mesoscale Discussion | SPC | Appanoose, Boone, Clarke, Dallas, Davis, Decatur and 13 more | 95 min |
| Mar 19, 3:48 PM CDT | Severe Thunderstorm Warning | DMX | Clarke, Decatur, Ringgold, Union | 42 min |
| Mar 19, 5:37 PM CDT | Special Weather Statement | DVN | Lee, Van Buren | 83 min |
| Mar 19, 5:50 PM CDT | Severe Thunderstorm Warning | DMX | Cerro Gordo, Hancock, Winnebago, Worth | 25 min |
| Mar 19, 6:43 PM CDT | Mesoscale Discussion | SPC | Benton, Black Hawk, Bremer, Buchanan, Butler, Cerro Gordo and 11 more | 62 min |
| Mar 19, 8:38 PM CDT | Severe Thunderstorm Warning | ARX | Allamakee, Clayton, Fayette, Winneshiek | 22 min |
| Mar 19, 9:01 PM CDT | Severe Thunderstorm Warning | ARX | Allamakee, Winneshiek | 44 min |
| Mar 23, 1:28 AM CDT | Dense Fog Advisory | FSD | Buena Vista, Cherokee, Clay, Dickinson, Lyon, O'Brien and 3 more | 9 hr |
| Mar 23, 3:52 AM CDT | Dense Fog Advisory | DMX | Black Hawk, Boone, Bremer, Butler, Calhoun, Carroll and 22 more | 6 hr |
| Mar 23, 7:22 AM CDT | Dense Fog Advisory | DVN | Benton, Buchanan, Cedar, Des Moines, Henry, Iowa and 10 more | 3 hr |
| Mar 23, 1:58 PM CDT | Mesoscale Discussion | SPC | Des Moines, Lee | 2 hr |
| Mar 23, 6:35 PM CDT | Special Weather Statement | DVN | Jackson | 55 min |
| Mar 24, 3:28 AM CDT | Dense Fog Advisory | DVN | Cedar, Clinton, Des Moines, Dubuque, Henry, Jackson and 5 more | 7 hr |
| Mar 25, 3:30 AM CDT | Dense Fog Advisory | DVN | Benton, Buchanan, Cedar, Delaware, Des Moines, Dubuque and 12 more | 5 hr |
| Mar 25, 3:35 AM CDT | Dense Fog Advisory | ARX | Allamakee, Clayton, Fayette | 6 hr |
| Mar 26, 3:17 AM CDT | Wind Advisory | OAX | Harrison, Monona | 19 hr |
| Mar 26, 3:25 AM CDT | Fire Weather Watch | OAX | Harrison, Monona, Pottawattamie, Shelby | 24 hr |
| Mar 26, 3:28 AM CDT | Wind Advisory | FSD | Buena Vista, Cherokee, Clay, Dickinson, Ida, Lyon and 5 more | 40 hr |
| Mar 26, 8:13 AM CDT | Special Weather Statement | OAX | Mills | 47 min |
| Mar 26, 8:39 AM CDT | Special Weather Statement | OAX | Montgomery | 51 min |
| Mar 26, 11:56 AM CDT | Fire Weather Watch | FSD | 16 hr | |
| Mar 26, 11:56 AM CDT | Red Flag Warning | FSD | 31 hr | |
| Mar 26, 3:34 PM CDT | Red Flag Warning | OAX | Monona | 28 hr |
| Mar 26, 3:44 PM CDT | Wind Advisory | DMX | Audubon, Bremer, Butler, Calhoun, Carroll, Cerro Gordo and 15 more | 27 hr |
| Mar 26, 4:00 PM CDT | Fire Weather Watch | DMX | Audubon, Calhoun, Carroll, Cerro Gordo, Crawford, Emmet and 11 more | 12 hr |
| Mar 27, 3:46 AM CDT | Wind Advisory | ARX | Chickasaw, Fayette, Floyd, Howard, Mitchell, Winneshiek | 15 hr |
| Mar 27, 3:58 PM CDT | Mesoscale Discussion | SPC | Benton, Cedar, Clayton, Clinton, Delaware, Des Moines and 17 more | 2 hr |
| Mar 27, 8:43 PM CDT | Mesoscale Discussion | SPC | Des Moines, Lee | 2 hr |
| Mar 28, 11:21 PM CDT | Mesoscale Discussion | SPC | Adams, Cass, Decatur, Fremont, Mills, Montgomery and 6 more | 84 min |
| Mar 29, 5:10 PM CDT | Tornado Watch | SPC | Fremont, Mills, Montgomery, Page | 6 hr |
| Mar 29, 6:41 PM CDT | Severe Thunderstorm Warning | OAX | Mills, Pottawattamie | 49 min |
| Mar 29, 6:58 PM CDT | Mesoscale Discussion | SPC | Fremont, Mills, Montgomery, Page | 62 min |
| Mar 29, 7:02 PM CDT | Special Weather Statement | DVN | Benton, Buchanan, Cedar, Johnson, Linn | 58 min |
| Mar 29, 7:25 PM CDT | Severe Thunderstorm Warning | DMX | Audubon, Cass | 50 min |
| Mar 29, 7:30 PM CDT | Severe Thunderstorm Warning | OAX | Mills, Montgomery, Pottawattamie | 30 min |
| Mar 29, 7:55 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Appanoose, Cass, Clarke, Dallas and 12 more | 65 min |
| Mar 29, 7:58 PM CDT | Severe Thunderstorm Warning | OAX | Mills, Montgomery | 32 min |
| Mar 29, 8:13 PM CDT | Severe Thunderstorm Warning | DMX | Adair, Cass | 47 min |
| Mar 29, 8:29 PM CDT | Severe Thunderstorm Warning | OAX | Montgomery | 31 min |
| Mar 29, 8:30 PM CDT | Severe Thunderstorm Watch | SPC | Adair, Adams, Appanoose, Cass, Clarke, Decatur and 9 more | 6 hr |
| Mar 29, 8:41 PM CDT | Severe Thunderstorm Warning | OAX | Page | 34 min |
| Mar 29, 8:49 PM CDT | Severe Thunderstorm Warning | DMX | Taylor | 44 min |
| Mar 29, 9:05 PM CDT | Severe Thunderstorm Warning | OAX | Fremont, Page | 25 min |
| Mar 29, 9:27 PM CDT | Severe Thunderstorm Warning | OAX | Fremont, Mills, Montgomery, Page | 33 min |
| Mar 29, 9:49 PM CDT | Severe Thunderstorm Warning | DMX | Ringgold, Taylor | 41 min |
| Mar 29, 9:51 PM CDT | Mesoscale Discussion | SPC | Fremont, Mills, Montgomery, Page | 54 min |
| Mar 29, 9:53 PM CDT | Severe Thunderstorm Warning | OAX | Fremont | 31 min |
| Mar 29, 10:09 PM CDT | Special Weather Statement | DVN | Buchanan, Delaware | 66 min |
| Mar 29, 10:49 PM CDT | Severe Thunderstorm Warning | DMX | Decatur, Ringgold | 41 min |
| Mar 29, 11:50 PM CDT | Mesoscale Discussion | SPC | Appanoose, Clarke, Decatur, Lucas, Madison, Mahaska and 6 more | 55 min |
| Mar 29, 11:53 PM CDT | Special Weather Statement | DVN | Buchanan | 52 min |
| Mar 30, 12:01 AM CDT | Severe Thunderstorm Warning | DVN | Buchanan, Delaware | 29 min |
| Mar 30, 4:42 AM CDT | Dense Fog Advisory | FSD | Cherokee, Lyon, O'Brien, Osceola, Plymouth, Sioux | 7 hr |
| Mar 30, 4:44 AM CDT | Special Weather Statement | DVN | Muscatine, Scott | 61 min |
| Mar 30, 3:20 PM CDT | Mesoscale Discussion | SPC | Adams, Audubon, Cass, Crawford, Fremont, Harrison and 7 more | 85 min |
| Mar 30, 5:01 PM CDT | Severe Thunderstorm Warning | FSD | Woodbury | 29 min |
| Mar 30, 5:35 PM CDT | Severe Thunderstorm Warning | OAX | Monona | 25 min |
| Mar 30, 6:00 PM CDT | Severe Thunderstorm Warning | DMX | Crawford | 17 min |
By product
Every kind of product issued here, grouped by hazard. Each opens the same place narrowed to that product.
| Product | Alerts |
|---|---|
| Severe storms | |
| Severe Thunderstorm Warning | 21 |
| Severe Thunderstorm Watch | 1 |
| Tornado Watch | 1 |
| Mesoscale Discussion | 13 |
| Special Weather Statement | 9 |
| Winter | |
| Winter Weather Advisory | 1 |
| Wind and dust | |
| Wind Advisory | 7 |
| Fire | |
| Red Flag Warning | 5 |
| Fire Weather Watch | 5 |
| Fog and smoke | |
| Dense Fog Advisory | 11 |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Montgomery County12
- Mills County11
- Page County10
- Fremont County9
- Monona County9
- Cass County9
- Cedar County8
- Linn County8
- Lee County8
- Decatur County8
- Ringgold County8
- Union County8
- Johnson County7
- Muscatine County7
- Des Moines County7
- Pottawattamie County7
- Adams County7
- Audubon County7
- Crawford County7
- Taylor County7
- Buchanan County7
- Benton County6
- Delaware County6
- Dubuque County6
- Henry County6
- Jackson County6
- Jones County6
- Louisa County6
- Scott County6
- Plymouth County6
- Sioux County6
- Woodbury County6
- Harrison County6
- Adair County6
- Carroll County6
- Fayette County6
- Iowa County5
- Jefferson County5
- Keokuk County5
- Washington County5
59 more counties
- Van Buren County5
- Shelby County5
- Allamakee County5
- Clayton County5
- Winneshiek County5
- Cherokee County5
- Lyon County5
- O'Brien County5
- Osceola County5
- Calhoun County5
- Emmet County5
- Greene County5
- Palo Alto County5
- Pocahontas County5
- Sac County5
- Hancock County5
- Madison County5
- Webster County5
- Winnebago County5
- Clarke County5
- Wayne County5
- Cerro Gordo County5
- Worth County5
- Clinton County4
- Ida County4
- Guthrie County4
- Buena Vista County4
- Clay County4
- Dickinson County4
- Dallas County4
- Humboldt County4
- Kossuth County4
- Wright County4
- Appanoose County4
- Lucas County4
- Marion County4
- Monroe County4
- Warren County4
- Wapello County3
- Chickasaw County3
- Floyd County3
- Howard County3
- Mitchell County3
- Boone County3
- Hamilton County3
- Mahaska County3
- Bremer County3
- Butler County3
- Franklin County3
- Davis County2
- Jasper County2
- Polk County2
- Story County2
- Black Hawk County2
- Grundy County2
- Tama County2
- Hardin County1
- Marshall County1
- Poweshiek County1
Nearby
Alerts in force nowTornadoes on recordThe radar archive20112013
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.