Red Flag Warnings in Iowa
310 red flag warnings since 1986. 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 since 1986. Tap one for its archive.
- Red Flag Warnings
- 310
- Busiest year
- 202445 red flag warnings
- Average year
- 16over 20 years on file
Over time
By year
Before late 2005 the archive holds only tornado, severe thunderstorm, flash flood and marine warnings, and from 1997 SPC's watches, so the jump that year is the archive widening, not the weather.
By month of the year
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Monona County72
- Plymouth County63
- Sioux County62
- Fremont County61
- Mills County61
- Pottawattamie County61
- Harrison County59
- Page County58
- Montgomery County56
- Woodbury County56
- Shelby County51
- Lyon County51
- Cherokee County49
- Clay County48
- O'Brien County48
- Osceola County46
- Ida County44
- Buena Vista County43
- Sac County42
- Crawford County40
- Pocahontas County39
- Dickinson County38
- Carroll County38
- Cass County38
- Calhoun County37
- Humboldt County37
- Palo Alto County37
- Emmet County36
- Adair County35
- Adams County35
- Taylor County35
- Audubon County34
- Kossuth County34
- Greene County33
- Guthrie County33
- Ringgold County33
- Union County33
- Boone County31
- Madison County31
- Dallas County30
59 more counties
- Webster County30
- Wright County30
- Clarke County30
- Hamilton County29
- Winnebago County29
- Decatur County29
- Hancock County28
- Polk County28
- Story County28
- Cerro Gordo County27
- Franklin County27
- Worth County27
- Warren County27
- Lucas County24
- Wayne County24
- Hardin County23
- Appanoose County23
- Davis County23
- Jefferson County23
- Marion County23
- Monroe County23
- Van Buren County23
- Wapello County23
- Floyd County22
- Marshall County22
- Mitchell County22
- Des Moines County22
- Henry County22
- Jasper County22
- Keokuk County22
- Lee County22
- Louisa County22
- Mahaska County22
- Washington County22
- Butler County21
- Iowa County21
- Bremer County20
- Grundy County20
- Howard County20
- Benton County20
- Buchanan County20
- Delaware County20
- Johnson County20
- Linn County20
- Muscatine County20
- Poweshiek County20
- Scott County20
- Chickasaw County19
- Black Hawk County19
- Cedar County19
- Clinton County19
- Dubuque County19
- Jackson County19
- Jones County19
- Tama County19
- Fayette County17
- Clayton County16
- Winneshiek County15
- Allamakee County14
The latest red flag warnings
The most recent on file, newest first.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 13, 1:54 PM CDT | Red Flag Warning | FSD | Buena Vista, Cherokee, Clay, Dickinson, Ida, Lyon and 5 more | 30 hr |
| May 11, 3:07 PM CDT | Red Flag Warning | FSD | Buena Vista, Cherokee, Clay, Dickinson, Ida, Lyon and 5 more | 30 hr |
| Apr 21, 12:54 PM CDT | Red Flag Warning | FSD | Lyon, Osceola, Sioux | 31 hr |
| Apr 17, 12:22 PM CDT | Red Flag Warning | OAX | Monona | 32 hr |
| Apr 15, 9:28 PM CDT | Red Flag Warning | OAX | Monona | 22 hr |
| Apr 15, 12:28 PM CDT | Red Flag Warning | FSD | Lyon, Plymouth, Sioux, Woodbury | 32 hr |
| Apr 11, 1:52 PM CDT | Red Flag Warning | FSD | Lyon, Plymouth, Sioux | 29 hr |
| Mar 27, 11:59 AM CDT | Red Flag Warning | DVN | Benton, Buchanan, Cedar, Clinton, Delaware, Des Moines and 15 more | 33 hr |
| Mar 27, 11:52 AM CDT | Red Flag Warning | DMX | Adair, Adams, Appanoose, Audubon, Black Hawk, Boone and 45 more | 33 hr |
| Mar 27, 11:17 AM CDT | Red Flag Warning | FSD | Buena Vista, Cherokee, Clay, Dickinson, Ida, Lyon and 5 more | 34 hr |
| Mar 27, 11:17 AM CDT | Red Flag Warning | ARX | Allamakee, Chickasaw, Clayton, Fayette, Floyd, Howard and 2 more | 32 hr |
| Mar 27, 8:31 AM CDT | Red Flag Warning | OAX | Fremont, Harrison, Mills, Monona, Montgomery, Page and 2 more | 37 hr |
Nearby
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.