Alert archive / Iowa / Red Flag Warnings
Red Flag Warnings in Iowa, 2021
19 red flag warnings in 2021. 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 red flag warnings reaches back to 2005.
Red Flag Warnings by county
Each county as a circle sized by its count in 2021. Tap one for its archive.
- Red Flag Warnings
- 19
- Busiest month
- March10 red flag warnings
- Busiest day
- March 28, 20214 red flag 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 |
|---|---|---|---|---|
| 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 10, 2:59 AM CST | Red Flag Warning | OAX | Fremont, Mills, Montgomery, Page, Pottawattamie | 15 hr |
| Mar 10, 4:02 AM CST | Red Flag Warning | DMX | Adair, Adams, Audubon, Cass, Guthrie, Taylor | 14 hr |
| Mar 28, 2:06 PM CDT | Red Flag Warning | OAX | Fremont, Harrison, Mills, Monona, Montgomery, Page and 2 more | 31 hr |
| Mar 28, 2:47 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 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 |
| Apr 2, 3:29 AM CDT | Red Flag Warning | OAX | Fremont, Harrison, Mills, Monona, Montgomery, Page and 2 more | 17 hr |
| Apr 2, 10:49 AM CDT | Red Flag Warning | FSD | Buena Vista, Cherokee, Clay, Dickinson, Ida, Lyon and 5 more | 9 hr |
| Apr 2, 10:50 AM CDT | Red Flag Warning | DMX | Adair, Adams, Audubon, Boone, Calhoun, Carroll and 29 more | 9 hr |
| Apr 2, 11:12 AM CDT | Red Flag Warning | ARX | Chickasaw, Floyd, Howard, Mitchell | 9 hr |
| May 1, 3:09 AM CDT | Red Flag Warning | FSD | Buena Vista, Cherokee, Clay, Dickinson, Ida, O'Brien and 4 more | 16 hr |
| May 1, 3:57 AM CDT | Red Flag Warning | DMX | Adair, Audubon, Black Hawk, Boone, Bremer, Butler and 24 more | 15 hr |
| May 1, 10:01 AM CDT | Red Flag Warning | OAX | Harrison, Mills, Monona, Pottawattamie, Shelby | 10 hr |
| May 1, 10:24 AM CDT | Red Flag Warning | ARX | Allamakee, Chickasaw, Clayton, Fayette, Floyd, Howard and 2 more | 10 hr |
| Dec 14, 2:21 PM CST | Red Flag Warning | OAX | Fremont, Mills, Montgomery, Page, Pottawattamie | 28 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Mills County7
- Fremont County6
- Montgomery County6
- Page County6
- Pottawattamie County6
- Adair County5
- Cass County5
- Adams County4
- Taylor County4
- Audubon County4
- Guthrie County4
- Harrison County4
- Monona County4
- Shelby County4
- Plymouth County4
- Sioux County4
- Woodbury County4
- Clarke County3
- Decatur County3
- Madison County3
- Ringgold County3
- Union County3
- Buena Vista County3
- Cherokee County3
- Clay County3
- Dickinson County3
- Ida County3
- O'Brien County3
- Osceola County3
- Boone County3
- Calhoun County3
- Carroll County3
- Crawford County3
- Dallas County3
- Greene County3
- Hamilton County3
- Hardin County3
- Humboldt County3
- Palo Alto County3
- Pocahontas County3
59 more counties
- Sac County3
- Story County3
- Webster County3
- Wright County3
- Wayne County2
- Lyon County2
- Black Hawk County2
- Grundy County2
- Polk County2
- Warren County2
- Cerro Gordo County2
- Emmet County2
- Franklin County2
- Hancock County2
- Kossuth County2
- Winnebago County2
- Worth County2
- Chickasaw County2
- Floyd County2
- Howard County2
- Mitchell County2
- Appanoose County1
- Davis County1
- Jasper County1
- Lucas County1
- Mahaska County1
- Marion County1
- Marshall County1
- Monroe County1
- Poweshiek County1
- Tama County1
- Wapello County1
- Benton County1
- Buchanan County1
- Cedar County1
- Clinton County1
- Delaware County1
- Des Moines County1
- Dubuque County1
- Henry County1
- Iowa County1
- Jackson County1
- Jefferson County1
- Johnson County1
- Jones County1
- Keokuk County1
- Lee County1
- Linn County1
- Louisa County1
- Muscatine County1
- Scott County1
- Van Buren County1
- Washington County1
- Bremer County1
- Butler County1
- Allamakee County1
- Clayton County1
- Fayette County1
- Winneshiek County1
The busiest days
Days with the most alerts issued, by UTC date.
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.