Alert archive / Iowa / 2012
Weather alerts in Iowa, February 2012
68 weather alerts in February 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 February 2012. Tap one for its archive.
- Alerts
- 68
- Warnings
- 6
- Watches
- 8
- Advisories
- 48
- Busiest day
- February 2, 20129 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 |
|---|---|---|---|---|
| Feb 1, 5:24 AM CST | Dense Fog Advisory | DVN | Benton, Buchanan, Cedar, Clinton, Delaware, Dubuque and 7 more | 8 hr |
| Feb 1, 5:27 AM CST | Dense Fog Advisory | DMX | Black Hawk, Bremer, Butler, Cerro Gordo, Franklin, Grundy and 12 more | 8 hr |
| Feb 1, 5:29 AM CST | Dense Fog Advisory | ARX | Allamakee, Chickasaw, Clayton, Fayette, Floyd, Howard and 2 more | 10 hr |
| Feb 1, 7:31 PM CST | Dense Fog Advisory | DVN | Benton, Buchanan, Cedar, Clinton, Delaware, Des Moines and 13 more | 18 hr |
| Feb 1, 7:37 PM CST | Dense Fog Advisory | ARX | Allamakee, Chickasaw, Clayton, Fayette, Floyd, Howard and 2 more | 40 hr |
| Feb 1, 7:38 PM CST | Dense Fog Advisory | DMX | Black Hawk, Bremer, Butler, Cerro Gordo, Franklin, Grundy and 14 more | 16 hr |
| Feb 1, 9:43 PM CST | Winter Storm Watch | FSD | Buena Vista, Cherokee, Clay, Ida, O'Brien, Plymouth and 1 more | 14 hr |
| Feb 1, 9:58 PM CST | Winter Storm Watch | OAX | Fremont, Harrison, Mills, Monona, Montgomery, Page and 2 more | 41 hr |
| Feb 2, 4:34 AM CST | Winter Storm Watch | DMX | Adair, Adams, Audubon, Boone, Calhoun, Carroll and 19 more | 35 hr |
| Feb 2, 12:00 PM CST | Dense Fog Advisory | DMX | Black Hawk, Bremer | 118 min |
| Feb 2, 1:52 PM CST | Dense Fog Advisory | ARX | Floyd, Mitchell | 22 hr |
| Feb 2, 3:41 PM CST | Dense Fog Advisory | DMX | Black Hawk, Bremer, Butler, Cerro Gordo, Davis, Franklin and 13 more | 14 hr |
| Feb 2, 6:06 PM CST | Dense Fog Advisory | DVN | Benton, Buchanan, Cedar, Clinton, Delaware, Des Moines and 13 more | 20 hr |
| Feb 3, 12:42 AM CST | Dense Fog Advisory | FSD | Clay, Dickinson, Osceola | 27 hr |
| Feb 3, 3:21 PM CST | Winter Storm Warning | OAX | Harrison, Mills, Monona, Montgomery, Pottawattamie, Shelby | 32 hr |
| Feb 3, 3:21 PM CST | Winter Weather Advisory | OAX | Fremont, Page | 32 hr |
| Feb 3, 3:36 PM CST | Winter Storm Warning | DMX | Adair, Adams, Audubon, Boone, Carroll, Cass and 8 more | 31 hr |
| Feb 3, 3:36 PM CST | Winter Weather Advisory | DMX | Clarke, Decatur, Jasper, Lucas, Mahaska, Marion and 5 more | 31 hr |
| Feb 4, 3:27 AM CST | Mesoscale Discussion | SPC | Cass, Fremont, Mills, Montgomery, Page, Pottawattamie | 4 hr |
| Feb 5, 7:21 PM CST | Dense Fog Advisory | OAX | Fremont, Harrison, Mills, Monona, Montgomery, Page and 2 more | 17 hr |
| Feb 5, 9:22 PM CST | Freezing Fog Advisory | DMX | Adair, Adams, Appanoose, Audubon, Carroll, Cass and 11 more | 13 hr |
| Feb 5, 11:52 PM CST | Dense Fog Advisory | FSD | Buena Vista, Cherokee, Clay, Dickinson, Ida, Lyon and 5 more | 11 hr |
| Feb 6, 10:05 AM CST | Dense Fog Advisory | DMX | Adair, Adams, Audubon, Boone, Calhoun, Carroll and 18 more | 115 min |
| Feb 10, 3:24 PM CST | Wind Chill Advisory | OAX | Fremont, Harrison, Mills, Monona, Montgomery, Page and 2 more | 17 hr |
| Feb 10, 3:48 PM CST | Wind Chill Advisory | DMX | Adair, Adams, Audubon, Boone, Calhoun, Carroll and 16 more | 16 hr |
| Feb 12, 3:27 AM CST | Winter Weather Advisory | OAX | Fremont, Harrison, Mills, Monona, Montgomery, Page and 2 more | 36 hr |
| Feb 12, 2:08 PM CST | Winter Weather Advisory | FSD | Cherokee, Ida, O'Brien, Plymouth, Sioux, Woodbury | 22 hr |
| Feb 13, 8:19 PM CST | Freezing Rain Advisory | DMX | Appanoose, Davis, Jasper, Mahaska, Marion, Marshall and 4 more | 4 hr |
| Feb 13, 8:29 PM CST | Freezing Rain Advisory | DVN | Benton, Buchanan, Cedar, Delaware, Dubuque, Henry and 9 more | 7 hr |
| Feb 13, 8:59 PM CST | Dense Fog Advisory | FSD | Buena Vista, Cherokee, Clay, Dickinson, Ida, Lyon and 5 more | 13 hr |
| Feb 13, 10:00 PM CST | Dense Fog Advisory | OAX | Fremont, Harrison, Mills, Monona, Montgomery, Page and 2 more | 12 hr |
| Feb 19, 3:43 PM CST | Winter Weather Advisory | FSD | Buena Vista, Cherokee, Clay, Dickinson, Ida, Lyon and 5 more | 29 hr |
| Feb 22, 11:03 AM CST | Winter Storm Watch | FSD | Clay, Dickinson, Lyon, O'Brien, Osceola | 5 hr |
| Feb 22, 11:07 AM CST | Winter Storm Watch | DMX | Black Hawk, Bremer, Butler, Cerro Gordo, Emmet, Franklin and 13 more | 11 hr |
| Feb 22, 11:12 AM CST | Winter Storm Watch | DVN | Benton, Buchanan, Cedar, Clinton, Delaware, Dubuque and 10 more | 16 hr |
| Feb 22, 11:13 AM CST | Winter Storm Watch | ARX | Allamakee, Chickasaw, Clayton, Fayette, Floyd, Howard and 2 more | 17 hr |
| Feb 22, 4:02 PM CST | Winter Storm Warning | FSD | Buena Vista, Cherokee, Clay, Dickinson, Lyon, O'Brien and 3 more | 29 hr |
| Feb 22, 4:02 PM CST | Winter Weather Advisory | FSD | Clay, Lyon, O'Brien, Osceola, Sioux | 7 hr |
| Feb 22, 4:02 PM CST | Wind Advisory | OAX | Fremont, Harrison, Mills, Monona, Montgomery, Page and 2 more | 26 hr |
| Feb 22, 4:09 PM CST | Wind Advisory | FSD | Woodbury | 26 hr |
| Feb 22, 10:02 PM CST | Winter Weather Advisory | OAX | Harrison, Monona, Pottawattamie, Shelby | 26 hr |
| Feb 22, 10:13 PM CST | Winter Storm Warning | DMX | Black Hawk, Boone, Butler, Calhoun, Carroll, Crawford and 20 more | 26 hr |
| Feb 22, 10:13 PM CST | Winter Weather Advisory | DMX | Adair, Audubon, Black Hawk, Bremer, Butler, Cass and 21 more | 26 hr |
| Feb 22, 10:39 PM CST | Winter Weather Advisory | FSD | Dickinson, Ida, Plymouth, Woodbury | 22 hr |
| Feb 23, 11:37 AM CST | Winter Weather Advisory | DVN | Benton, Buchanan, Cedar, Clinton, Delaware, Dubuque and 7 more | 20 hr |
| Feb 23, 6:30 PM CST | Winter Weather Advisory | ARX | Clayton, Fayette | 12 hr |
| Feb 23, 8:45 PM CST | Mesoscale Discussion | SPC | Adair, Adams, Appanoose, Audubon, Benton, Black Hawk and 51 more | 5 hr |
| Feb 23, 11:59 PM CST | Winter Weather Advisory | DMX | Jasper, Mahaska, Marion, Monroe, Poweshiek, Wapello and 1 more | 3 hr |
| Feb 25, 8:49 PM CST | Wind Advisory | FSD | Buena Vista, Cherokee, Clay, Dickinson, Ida, Lyon and 5 more | 21 hr |
| Feb 26, 3:33 AM CST | Wind Advisory | DMX | Bremer, Butler, Calhoun, Cerro Gordo, Emmet, Franklin and 11 more | 14 hr |
| Feb 26, 3:56 AM CST | Wind Advisory | ARX | Chickasaw, Fayette, Floyd, Howard, Mitchell, Winneshiek | 15 hr |
| Feb 26, 4:06 AM CST | Winter Storm Watch | FSD | Dickinson, Lyon, Osceola | 23 hr |
| Feb 26, 11:51 AM CST | High Wind Warning | DMX | Emmet, Kossuth, Palo Alto, Winnebago | 6 hr |
| Feb 27, 3:25 AM CST | Winter Weather Advisory | FSD | Clay, Dickinson, Lyon, O'Brien, Osceola, Sioux | 57 hr |
| Feb 27, 3:52 PM CST | Winter Weather Advisory | ARX | Allamakee, Chickasaw, Clayton, Fayette, Floyd, Howard and 2 more | 50 hr |
| Feb 27, 4:03 PM CST | Winter Weather Advisory | DMX | Calhoun, Cerro Gordo, Emmet, Hamilton, Hancock, Humboldt and 8 more | 21 hr |
| Feb 28, 6:18 AM CST | Mesoscale Discussion | SPC | Buena Vista, Cherokee, Clay, Dickinson, Lyon, O'Brien and 3 more | 5 hr |
| Feb 28, 11:43 AM CST | Mesoscale Discussion | SPC | Lyon, Osceola | 5 hr |
| Feb 28, 2:30 PM CST | Wind Advisory | FSD | Buena Vista, Cherokee, Clay, Dickinson, Ida, Lyon and 5 more | 28 hr |
| Feb 28, 2:37 PM CST | Special Weather Statement | OAX | Pottawattamie | 23 min |
| Feb 28, 3:22 PM CST | Wind Advisory | OAX | Fremont, Harrison, Mills, Monona, Montgomery, Page and 2 more | 25 hr |
| Feb 28, 3:38 PM CST | Wind Advisory | DMX | Adair, Adams, Appanoose, Audubon, Black Hawk, Boone and 45 more | 26 hr |
| Feb 28, 3:47 PM CST | Wind Advisory | DVN | Benton, Buchanan, Cedar, Clinton, Delaware, Des Moines and 15 more | 26 hr |
| Feb 28, 8:23 PM CST | Mesoscale Discussion | SPC | Fremont, Harrison, Mills, Montgomery, Page, Pottawattamie | 37 min |
| Feb 29, 7:16 AM CST | High Wind Warning | DMX | Adair, Adams, Audubon, Boone, Calhoun, Carroll and 19 more | 11 hr |
| Feb 29, 8:47 AM CST | Wind Advisory | ARX | Allamakee, Chickasaw, Clayton, Fayette, Floyd, Howard and 2 more | 9 hr |
| Feb 29, 9:52 AM CST | Winter Weather Advisory | DMX | Black Hawk, Bremer, Butler, Calhoun, Cerro Gordo, Emmet and 14 more | 8 hr |
| Feb 29, 11:29 AM CST | Winter Weather Advisory | DVN | Buchanan, Delaware, Dubuque | 7 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 | 5 |
| Special Weather Statement | 1 |
| Winter | |
| Winter Storm Warning | 4 |
| Winter Storm Watch | 8 |
| Freezing Rain Advisory | 2 |
| Winter Weather Advisory | 17 |
| Cold | |
| Wind Chill Advisory | 2 |
| Wind and dust | |
| High Wind Warning | 2 |
| Wind Advisory | 10 |
| Fog and smoke | |
| Dense Fog Advisory | 16 |
| Freezing Fog Advisory | 1 |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Pottawattamie County13
- Osceola County13
- Clay County12
- O'Brien County12
- Dickinson County12
- Lyon County12
- Hamilton County11
- Hardin County11
- Montgomery County11
- Page County11
- Black Hawk County10
- Grundy County10
- Hancock County10
- Jasper County10
- Kossuth County10
- Poweshiek County10
- Winnebago County10
- Wright County10
- Plymouth County10
- Fremont County10
- Harrison County10
- Mills County10
- Cass County10
- Webster County10
- Sioux County10
- Buchanan County9
- Delaware County9
- Dubuque County9
- Bremer County9
- Butler County9
- Cerro Gordo County9
- Franklin County9
- Marshall County9
- Worth County9
- Cherokee County9
- Woodbury County9
- Monona County9
- Shelby County9
- Adair County9
- Audubon County9
59 more counties
- Calhoun County9
- Dallas County9
- Guthrie County9
- Humboldt County9
- Madison County9
- Pocahontas County9
- Sac County9
- Benton County8
- Cedar County8
- Iowa County8
- Johnson County8
- Jones County8
- Linn County8
- Story County8
- Tama County8
- Fayette County8
- Mahaska County8
- Marion County8
- Buena Vista County8
- Ida County8
- Adams County8
- Boone County8
- Carroll County8
- Crawford County8
- Greene County8
- Ringgold County8
- Taylor County8
- Union County8
- Emmet County8
- Palo Alto County8
- Clinton County7
- Jackson County7
- Muscatine County7
- Scott County7
- Clayton County7
- Floyd County7
- Mitchell County7
- Wapello County7
- Polk County7
- Monroe County7
- Chickasaw County6
- Howard County6
- Winneshiek County6
- Keokuk County6
- Washington County6
- Clarke County6
- Decatur County6
- Warren County6
- Allamakee County5
- Henry County5
- Jefferson County5
- Louisa County5
- Lucas County5
- Des Moines County4
- Davis County4
- Appanoose County4
- Wayne County4
- Van Buren County3
- Lee County2
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.