Alert archive / Iowa / 2021
Weather alerts in Iowa, March 2021
70 weather alerts in March 2021, 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 2021. Tap one for its archive.
- Alerts
- 70
- Warnings
- 21
- Watches
- 12
- Advisories
- 28
- Busiest day
- March 10, 202113 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 6, 2:59 PM CST | Red Flag Warning | OAX | Fremont, Mills, Montgomery, Page | 28 hr |
| Mar 7, 2:27 AM CST | Red Flag Warning | DMX | Adair, Adams, Cass, Clarke, Decatur, Madison and 4 more | 16 hr |
| Mar 9, 8:41 AM CST | River Flood Warning | DVN | Clinton, Scott | 10 days |
| Mar 9, 2:33 PM CST | Wind Advisory | OAX | Fremont, Harrison, Mills, Monona, Montgomery, Page and 2 more | 27 hr |
| Mar 10, 2:52 AM CST | Wind Advisory | DVN | Benton, Buchanan, Cedar, Clinton, Delaware, Des Moines and 15 more | 17 hr |
| Mar 10, 2:59 AM CST | Red Flag Warning | OAX | Fremont, Mills, Montgomery, Page, Pottawattamie | 15 hr |
| Mar 10, 3:55 AM CST | Wind Advisory | DMX | Adair, Adams, Appanoose, Audubon, Black Hawk, Boone and 45 more | 20 hr |
| Mar 10, 4:02 AM CST | Wind Advisory | ARX | Chickasaw, Floyd, Howard, Mitchell | 23 hr |
| Mar 10, 4:02 AM CST | Red Flag Warning | DMX | Adair, Adams, Audubon, Cass, Guthrie, Taylor | 14 hr |
| Mar 10, 1:32 PM CST | Mesoscale Discussion | SPC | Adair, Audubon, Benton, Black Hawk, Boone, Bremer and 38 more | 118 min |
| Mar 10, 1:47 PM CST | Wind Advisory | FSD | Buena Vista, Cherokee, Clay, Dickinson, Ida, Woodbury | 10 hr |
| Mar 10, 2:15 PM CST | High Wind Warning | DMX | Adair, Adams, Audubon, Carroll, Cass, Crawford and 4 more | 4 hr |
| Mar 10, 2:46 PM CST | Tornado Watch | SPC | Allamakee, Benton, Black Hawk, Boone, Bremer, Buchanan and 28 more | 5 hr |
| Mar 10, 5:18 PM CST | Severe Thunderstorm Warning | DMX | Clarke, Union | 24 min |
| Mar 10, 5:34 PM CST | Severe Thunderstorm Warning | DMX | Grundy, Marshall | 24 min |
| Mar 10, 5:36 PM CST | Severe Thunderstorm Warning | DMX | Clarke, Decatur, Lucas | 39 min |
| Mar 10, 5:43 PM CST | Mesoscale Discussion | SPC | Allamakee, Benton, Black Hawk, Bremer, Buchanan, Butler and 21 more | 2 hr |
| Mar 10, 7:17 PM CST | Special Weather Statement | ARX | Allamakee, Winneshiek | 58 min |
| Mar 13, 3:08 AM CST | Winter Storm Watch | DMX | Black Hawk, Boone, Bremer, Butler, Calhoun, Cerro Gordo and 17 more | 24 hr |
| Mar 13, 3:20 AM CST | Winter Storm Watch | ARX | Chickasaw, Fayette, Floyd, Howard, Mitchell | 24 hr |
| Mar 13, 3:24 AM CST | Winter Storm Watch | FSD | Buena Vista, Clay, Dickinson, Lyon, O'Brien, Osceola | 24 hr |
| Mar 13, 3:00 PM CST | Winter Storm Watch | DVN | Benton, Buchanan | 12 hr |
| Mar 13, 3:09 PM CST | Wind Advisory | DMX | Adair, Adams, Audubon, Carroll, Cass, Crawford and 5 more | 27 hr |
| Mar 13, 3:18 PM CST | Wind Advisory | FSD | Buena Vista, Cherokee, Clay, Dickinson, Ida, Lyon and 5 more | 26 hr |
| Mar 13, 3:25 PM CST | Wind Advisory | OAX | Fremont, Harrison, Mills, Monona, Montgomery, Page and 2 more | 27 hr |
| Mar 14, 3:53 AM CDT | Winter Weather Advisory | DVN | Benton, Buchanan, Cedar, Clinton, Delaware, Dubuque and 7 more | 39 hr |
| Mar 14, 4:02 AM CDT | Winter Storm Warning | DMX | Black Hawk, Bremer, Butler, Calhoun, Cerro Gordo, Emmet and 14 more | 36 hr |
| Mar 14, 4:02 AM CDT | Winter Weather Advisory | DMX | Audubon, Black Hawk, Boone, Bremer, Calhoun, Carroll and 16 more | 36 hr |
| Mar 14, 4:03 AM CDT | Winter Storm Warning | FSD | Buena Vista, Cherokee, Clay, Dickinson, Lyon, O'Brien and 2 more | 32 hr |
| Mar 14, 4:03 AM CDT | Winter Weather Advisory | FSD | Ida, Plymouth, Woodbury | 30 hr |
| Mar 14, 4:06 AM CDT | Winter Storm Warning | ARX | Allamakee, Chickasaw, Clayton, Fayette, Floyd, Howard and 2 more | 39 hr |
| Mar 14, 4:06 AM CDT | Winter Weather Advisory | ARX | Allamakee, Chickasaw, Clayton, Fayette, Howard, Mitchell and 1 more | 42 hr |
| Mar 14, 6:20 PM CDT | Mesoscale Discussion | SPC | Adair, Audubon, Boone, Buena Vista, Calhoun, Carroll and 32 more | 6 hr |
| Mar 15, 1:50 AM CDT | Mesoscale Discussion | SPC | Black Hawk, Boone, Bremer, Buchanan, Buena Vista, Butler and 38 more | 6 hr |
| Mar 15, 3:32 AM CDT | Winter Storm Warning | DVN | Benton, Buchanan, Clinton, Delaware, Dubuque, Jackson and 2 more | 15 hr |
| Mar 16, 12:37 AM CDT | Dense Fog Advisory | DVN | Des Moines, Henry, Jefferson, Keokuk, Lee, Louisa and 2 more | 9 hr |
| Mar 16, 12:52 AM CDT | Dense Fog Advisory | OAX | Fremont, Harrison, Mills, Montgomery, Page, Pottawattamie and 1 more | 8 hr |
| Mar 16, 1:06 AM CDT | Dense Fog Advisory | DMX | Adair, Adams, Appanoose, Audubon, Boone, Calhoun and 25 more | 8 hr |
| Mar 16, 11:39 AM CDT | River Flood Watch | DVN | Johnson, Washington | 22 hr |
| Mar 16, 11:39 AM CDT | River Flood Watch | DVN | Keokuk | 6 days |
| Mar 16, 11:39 AM CDT | River Flood Watch | DVN | Des Moines, Henry, Lee | 5 days |
| Mar 17, 12:39 AM CDT | Dense Fog Advisory | OAX | Mills, Pottawattamie | 3 hr |
| Mar 17, 4:49 AM CDT | Dense Fog Advisory | DMX | Adair, Adams, Appanoose, Audubon, Boone, Calhoun and 21 more | 4 hr |
| Mar 17, 2:28 PM CDT | Wind Advisory | DVN | Cedar, Clinton, Des Moines, Dubuque, Henry, Jackson and 10 more | 29 hr |
| Mar 21, 2:28 AM CDT | Wind Advisory | DMX | Adair, Adams, Audubon, Boone, Bremer, Butler and 29 more | 14 hr |
| Mar 21, 3:04 AM CDT | Wind Advisory | FSD | Buena Vista, Cherokee, Clay, Dickinson, Ida, Lyon and 5 more | 12 hr |
| Mar 21, 3:12 AM CDT | Wind Advisory | ARX | Chickasaw, Floyd, Howard, Mitchell | 13 hr |
| Mar 21, 3:15 AM CDT | Wind Advisory | OAX | Fremont, Harrison, Mills, Monona, Montgomery, Page and 2 more | 14 hr |
| Mar 23, 12:44 PM CDT | Mesoscale Discussion | SPC | Appanoose, Davis, Decatur, Lee, Ringgold, Taylor and 3 more | 2 hr |
| Mar 23, 5:53 PM CDT | Special Weather Statement | DVN | Van Buren | 37 min |
| Mar 23, 6:11 PM CDT | Special Weather Statement | DVN | Jefferson, Keokuk, Van Buren | 64 min |
| Mar 23, 6:41 PM CDT | Special Weather Statement | DMX | Poweshiek | 64 min |
| Mar 23, 7:11 PM CDT | Tornado Warning | DVN | Des Moines, Lee | 19 min |
| Mar 23, 7:40 PM CDT | Tornado Warning | DVN | Washington | 15 min |
| Mar 27, 3:31 PM CDT | Fire Weather Watch | FSD | Buena Vista, Cherokee, Clay, Dickinson, Ida, Lyon and 5 more | 23 hr |
| Mar 28, 3:17 AM CDT | Fire Weather Watch | OAX | Fremont, Harrison, Mills, Monona, Montgomery, Page and 2 more | 11 hr |
| Mar 28, 3:24 AM CDT | Fire Weather Watch | DVN | Benton, Buchanan, Cedar, Clinton, Delaware, Des Moines and 14 more | 12 hr |
| Mar 28, 4:22 AM CDT | Fire Weather Watch | DMX | Adair, Adams, Appanoose, Audubon, Black Hawk, Boone and 36 more | 11 hr |
| Mar 28, 1:57 PM CDT | Wind Advisory | ARX | Allamakee, Chickasaw, Clayton, Fayette, Floyd, Howard and 2 more | 30 hr |
| Mar 28, 2:06 PM CDT | Red Flag Warning | OAX | Fremont, Harrison, Mills, Monona, Montgomery, Page and 2 more | 31 hr |
| Mar 28, 2:10 PM CDT | Wind Advisory | OAX | Fremont, Harrison, Mills, Monona, Montgomery, Page and 2 more | 30 hr |
| Mar 28, 2:40 PM CDT | Wind Advisory | FSD | Buena Vista, Cherokee, Clay, Dickinson, Ida, Lyon and 5 more | 30 hr |
| Mar 28, 2:41 PM CDT | Wind Advisory | DVN | Benton, Buchanan, Cedar, Clinton, Delaware, Des Moines and 15 more | 29 hr |
| Mar 28, 2:47 PM CDT | Red Flag Warning | FSD | Buena Vista, Cherokee, Clay, Dickinson, Ida, Lyon and 5 more | 30 hr |
| Mar 28, 2:52 PM CDT | Red Flag Warning | DMX | Adair, Adams, Appanoose, Audubon, Black Hawk, Boone and 36 more | 29 hr |
| Mar 28, 2:55 PM CDT | Red Flag Warning | DVN | Benton, Buchanan, Cedar, Clinton, Delaware, Des Moines and 15 more | 29 hr |
| Mar 28, 3:02 PM CDT | Wind Advisory | DMX | Adair, Adams, Appanoose, Audubon, Black Hawk, Boone and 45 more | 29 hr |
| Mar 29, 3:18 PM CDT | Red Flag Warning | FSD | Plymouth, Sioux, Woodbury | 30 hr |
| Mar 30, 3:38 AM CDT | Red Flag Warning | OAX | Fremont, Harrison, Mills, Monona, Montgomery, Page and 2 more | 16 hr |
| Mar 30, 10:59 AM CDT | Wind Advisory | FSD | Clay, Dickinson, Lyon, O'Brien, Osceola, Plymouth and 1 more | 10 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 | |
| Severe Thunderstorm Warning | 3 |
| Tornado Warning | 2 |
| Tornado Watch | 1 |
| Mesoscale Discussion | 5 |
| Special Weather Statement | 4 |
| Flooding | |
| River Flood Warning | 1 |
| River Flood Watch | 3 |
| Winter | |
| Winter Storm Warning | 4 |
| Winter Storm Watch | 4 |
| Winter Weather Advisory | 4 |
| Wind and dust | |
| High Wind Warning | 1 |
| Wind Advisory | 19 |
| Fire | |
| Red Flag Warning | 10 |
| Fire Weather Watch | 4 |
| Fog and smoke | |
| Dense Fog Advisory | 5 |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Adair County13
- Audubon County13
- Boone County13
- Calhoun County13
- Carroll County13
- Grundy County13
- Guthrie County13
- Hardin County13
- Marshall County13
- Sac County13
- Webster County13
- Taylor County12
- Crawford County12
- Hamilton County12
- Story County12
- Mills County11
- Adams County11
- Cass County11
- Union County11
- Buchanan County11
- Black Hawk County11
- Dallas County11
- Greene County11
- Humboldt County11
- Palo Alto County11
- Pocahontas County11
- Polk County11
- Wright County11
- Buena Vista County11
- Clay County11
- Dickinson County11
- Fremont County10
- Montgomery County10
- Page County10
- Madison County10
- Ringgold County10
- Pottawattamie County10
- Benton County10
- Bremer County10
- Franklin County10
59 more counties
- Tama County10
- Chickasaw County10
- Howard County10
- Mitchell County10
- Woodbury County10
- Lyon County10
- O'Brien County10
- Osceola County10
- Plymouth County10
- Sioux County10
- Clarke County9
- Decatur County9
- Harrison County9
- Shelby County9
- Van Buren County9
- Butler County9
- Cerro Gordo County9
- Hancock County9
- Jasper County9
- Kossuth County9
- Poweshiek County9
- Worth County9
- Floyd County9
- Cherokee County9
- Ida County9
- Wayne County8
- Clinton County8
- Monona County8
- Des Moines County8
- Lee County8
- Washington County8
- Emmet County8
- Lucas County8
- Warren County8
- Winnebago County8
- Fayette County8
- Scott County7
- Dubuque County7
- Henry County7
- Jackson County7
- Jefferson County7
- Johnson County7
- Jones County7
- Keokuk County7
- Linn County7
- Appanoose County7
- Davis County7
- Mahaska County7
- Marion County7
- Wapello County7
- Winneshiek County7
- Cedar County6
- Delaware County6
- Iowa County6
- Louisa County6
- Muscatine County6
- Monroe County6
- Allamakee County6
- Clayton County3
Nearby
Alerts in force nowTornadoes on recordThe radar archive20202022
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.