Alert archive / Iowa / Flash Flood Warnings
Flash Flood Warnings in Iowa, 2022
27 flash flood warnings in 2022. 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 flash flood warnings reaches back to 1986.
Flash Flood Warnings by county
Each county as a circle sized by its count in 2022. Tap one for its archive.
- Flash Flood Warnings
- 27
- Busiest month
- April8 flash flood warnings
- Busiest day
- April 22, 20227 flash flood 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 |
|---|---|---|---|---|
| Apr 12, 10:26 PM CDT | Flash Flood Warning | ARX | Mitchell | 3 hr |
| Apr 22, 8:30 AM CDT | Flash Flood Warning | DMX | Carroll, Greene, Guthrie | 3 hr |
| Apr 22, 8:59 AM CDT | Flash Flood Warning | DMX | Boone, Dallas, Greene, Polk, Story | 3 hr |
| Apr 22, 9:31 AM CDT | Flash Flood Warning | DMX | Jasper, Marshall, Story | 3 hr |
| Apr 22, 11:11 AM CDT | Flash Flood Warning | DVN | Iowa, Johnson, Keokuk, Louisa, Washington | 6 hr |
| Apr 22, 11:55 AM CDT | Flash Flood Warning | DMX | Mahaska | 3 hr |
| Apr 22, 12:05 PM CDT | Flash Flood Warning | DVN | Iowa, Johnson | 81 min |
| Apr 22, 12:22 PM CDT | Flash Flood Warning | DVN | Keokuk | 52 min |
| May 26, 6:28 PM CDT | Flash Flood Warning | DVN | Lee, Van Buren | 4 hr |
| May 26, 7:19 PM CDT | Flash Flood Warning | DVN | Des Moines, Henry, Lee | 3 hr |
| Jun 11, 10:01 PM CDT | Flash Flood Warning | DVN | Buchanan | 6 hr |
| Jun 15, 1:00 AM CDT | Flash Flood Warning | OAX | Mills, Pottawattamie | 3 hr |
| Jun 15, 1:24 AM CDT | Flash Flood Warning | DMX | Boone, Dallas, Greene, Story | 6 hr |
| Jun 15, 2:09 AM CDT | Flash Flood Warning | DMX | Boone, Hamilton, Hardin, Marshall, Story | 6 hr |
| Jun 25, 2:53 AM CDT | Flash Flood Warning | FSD | O'Brien, Plymouth, Sioux | 4 hr |
| Jun 25, 3:19 AM CDT | Flash Flood Warning | DVN | Johnson | 4 hr |
| Jun 25, 5:48 AM CDT | Flash Flood Warning | DVN | Benton, Buchanan, Linn | 6 hr |
| Jul 5, 8:41 PM CDT | Flash Flood Warning | ARX | Allamakee, Clayton, Fayette, Howard, Winneshiek | 5 hr |
| Jul 7, 4:44 PM CDT | Flash Flood Warning | FSD | Plymouth, Woodbury | 2 hr |
| Jul 8, 10:32 AM CDT | Flash Flood Warning | DVN | Johnson | 4 hr |
| Jul 15, 10:25 AM CDT | Flash Flood Warning | DVN | Dubuque, Jackson | 2 hr |
| Aug 7, 3:24 AM CDT | Flash Flood Warning | DMX | Cerro Gordo, Hancock, Winnebago, Worth | 6 hr |
| Aug 19, 4:50 PM CDT | Flash Flood Warning | DMX | Polk | 3 hr |
| Aug 19, 6:49 PM CDT | Flash Flood Warning | DVN | Muscatine | 5 hr |
| Aug 19, 8:08 PM CDT | Flash Flood Warning | DVN | Louisa, Muscatine, Washington | 4 hr |
| Aug 27, 8:20 PM CDT | Flash Flood Warning | ARX | Allamakee, Winneshiek | 3 hr |
| Sep 3, 7:50 PM CDT | Flash Flood Warning | DVN | Des Moines | 111 min |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Story County4
- Johnson County4
- Greene County3
- Boone County3
- Dallas County2
- Polk County2
- Marshall County2
- Iowa County2
- Keokuk County2
- Louisa County2
- Washington County2
- Lee County2
- Des Moines County2
- Buchanan County2
- Plymouth County2
- Allamakee County2
- Winneshiek County2
- Muscatine County2
- Mitchell County1
- Carroll County1
- Guthrie County1
- Jasper County1
- Mahaska County1
- Van Buren County1
- Henry County1
- Mills County1
- Pottawattamie County1
- Hamilton County1
- Hardin County1
- O'Brien County1
- Sioux County1
- Benton County1
- Linn County1
- Clayton County1
- Fayette County1
- Howard County1
- Woodbury County1
- Dubuque County1
- Jackson County1
- Cerro Gordo County1
3 more counties
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordThe radar archive20212023
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.