Alert archive / Iowa / Flash Flood Warnings / 2026
Flash Flood Warnings in Iowa, June 2026
21 flash flood warnings in June 2026. 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 June 2026. Tap one for its archive.
- Flash Flood Warnings
- 21
- Busiest day
- June 11, 20267 flash flood warnings
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 |
|---|---|---|---|---|
| Jun 4, 4:25 PM CDT | Flash Flood Warning | OAX | Fremont, Montgomery, Page | 5 hr |
| Jun 5, 10:28 PM CDT | Flash Flood Warning | OAX | Mills | 3 hr |
| Jun 5, 10:44 PM CDT | Flash Flood Warning | DMX | Marion, Warren | 4 hr |
| Jun 5, 11:23 PM CDT | Flash Flood Warning | DMX | Adair, Adams, Cass, Clarke, Madison, Union | 4 hr |
| Jun 5, 11:42 PM CDT | Flash Flood Warning | DMX | Marion | 3 hr |
| Jun 6, 1:33 AM CDT | Flash Flood Warning | DMX | Appanoose, Lucas, Marion, Monroe, Wayne | 5 hr |
| Jun 7, 12:34 PM CDT | Flash Flood Warning | DVN | Cedar, Clinton, Muscatine | 3 hr |
| Jun 7, 1:47 PM CDT | Flash Flood Warning | DVN | Scott | 2 hr |
| Jun 10, 6:55 PM CDT | Flash Flood Warning | DMX | Appanoose, Davis | 6 hr |
| Jun 10, 8:19 PM CDT | Flash Flood Warning | DVN | Lee | 5 hr |
| Jun 10, 9:07 PM CDT | Flash Flood Warning | DMX | Lucas | 6 hr |
| Jun 11, 5:23 AM CDT | Flash Flood Warning | OAX | Fremont, Mills | 3 hr |
| Jun 11, 5:49 AM CDT | Flash Flood Warning | OAX | Fremont, Mills, Montgomery, Page | 3 hr |
| Jun 11, 6:29 AM CDT | Flash Flood Warning | OAX | Fremont, Page | 2 hr |
| Jun 11, 7:13 AM CDT | Flash Flood Warning | DMX | Adair, Adams, Madison, Union | 3 hr |
| Jun 11, 2:56 PM CDT | Flash Flood Warning | DVN | Dubuque | 4 hr |
| Jun 17, 7:24 AM CDT | Flash Flood Warning | DVN | Johnson, Linn | 6 hr |
| Jun 17, 7:55 AM CDT | Flash Flood Warning | DVN | Cedar, Iowa, Johnson, Jones, Keokuk, Linn and 3 more | 5 hr |
| Jun 17, 8:25 AM CDT | Flash Flood Warning | DVN | Cedar, Clinton, Muscatine, Scott | 5 hr |
| Jun 17, 8:43 AM CDT | Flash Flood Warning | DVN | Des Moines, Henry, Jefferson | 3 hr |
| Jun 30, 4:37 AM CDT | Flash Flood Warning | FSD | Woodbury | 2 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Fremont County4
- Page County3
- Mills County3
- Marion County3
- Cedar County3
- Muscatine County3
- Montgomery County2
- Adair County2
- Adams County2
- Madison County2
- Union County2
- Appanoose County2
- Lucas County2
- Clinton County2
- Scott County2
- Johnson County2
- Linn County2
- Warren County1
- Cass County1
- Clarke County1
- Monroe County1
- Wayne County1
- Davis County1
- Lee County1
- Dubuque County1
- Iowa County1
- Jones County1
- Keokuk County1
- Louisa County1
- Washington County1
- Des Moines County1
- Henry County1
- Jefferson County1
- Woodbury County1
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. Warning verification from the Mesonet's Cow. Rebuilt daily.