Alert archive / Iowa / Flash Flood Watches / 2021
Flash Flood Watches in Iowa, August 2021
5 flash flood watches in August 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 flash flood watches reaches back to 2005.
Flash Flood Watches by county
Each county as a circle sized by its count in August 2021. Tap one for its archive.
- Flash Flood Watches
- 5
- Busiest day
- August 12, 20212 flash flood watches
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 |
|---|---|---|---|---|
| Aug 7, 6:18 PM CDT | Flash Flood Watch | ARX | Allamakee, Winneshiek | 35 hr |
| Aug 12, 12:44 PM CDT | Flash Flood Watch | DVN | Des Moines, Lee, Van Buren | 8 hr |
| Aug 12, 1:30 PM CDT | Flash Flood Watch | DMX | Appanoose, Davis | 7 hr |
| Aug 26, 5:50 PM CDT | Flash Flood Watch | DVN | Benton, Buchanan, Delaware, Dubuque, Jackson, Jones and 1 more | 13 hr |
| Aug 27, 7:38 PM CDT | Flash Flood Watch | ARX | Allamakee, Chickasaw, Clayton, Fayette, Floyd, Howard and 2 more | 18 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Allamakee County2
- Winneshiek County2
- Des Moines County1
- Lee County1
- Van Buren County1
- Appanoose County1
- Davis County1
- Benton County1
- Buchanan County1
- Delaware County1
- Dubuque County1
- Jackson County1
- Jones County1
- Linn County1
- Chickasaw County1
- Clayton County1
- Fayette County1
- Floyd County1
- Howard County1
- Mitchell County1
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.