Alert archive / Iowa / Flash Flood Watches / 2020
Flash Flood Watches in Iowa, May 2020
7 flash flood watches in May 2020. 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 May 2020. Tap one for its archive.
- Flash Flood Watches
- 7
- Busiest day
- May 28, 20203 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 |
|---|---|---|---|---|
| May 14, 11:38 AM CDT | Flash Flood Watch | DVN | Cedar, Clinton, Des Moines, Henry, Jackson, Jefferson and 9 more | 19 hr |
| May 14, 12:26 PM CDT | Flash Flood Watch | DMX | Davis, Wapello | 11 hr |
| May 24, 4:00 AM CDT | Flash Flood Watch | OAX | Fremont, Mills, Montgomery, Page | 39 hr |
| May 26, 3:45 AM CDT | Flash Flood Watch | OAX | Fremont, Mills, Montgomery, Page | 12 hr |
| May 28, 3:32 AM CDT | Flash Flood Watch | DVN | Benton, Buchanan, Cedar, Delaware, Dubuque, Henry and 8 more | 15 hr |
| May 28, 3:42 AM CDT | Flash Flood Watch | DMX | Appanoose, Davis, Lucas, Mahaska, Marion, Monroe and 4 more | 13 hr |
| May 28, 3:47 AM CDT | Flash Flood Watch | ARX | Allamakee, Clayton, Fayette | 10 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Cedar County2
- Henry County2
- Jefferson County2
- Johnson County2
- Jones County2
- Keokuk County2
- Van Buren County2
- Washington County2
- Davis County2
- Wapello County2
- Fremont County2
- Mills County2
- Montgomery County2
- Page County2
- Clinton County1
- Des Moines County1
- Jackson County1
- Lee County1
- Louisa County1
- Muscatine County1
- Scott County1
- Benton County1
- Buchanan County1
- Delaware County1
- Dubuque County1
- Iowa County1
- Linn County1
- Appanoose County1
- Lucas County1
- Mahaska County1
- Marion County1
- Monroe County1
- Poweshiek County1
- Tama County1
- Wayne County1
- Allamakee County1
- Clayton County1
- Fayette County1
Nearby
Alerts in force nowTornadoes on recordThe radar archive20192021
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.