Alert archive / Iowa / Flash Flood Warnings / 2009
Flash Flood Warnings in Iowa, August 2009
21 flash flood warnings in August 2009. 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 August 2009. Tap one for its archive.
- Flash Flood Warnings
- 21
- Busiest day
- August 27, 20099 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 |
|---|---|---|---|---|
| Aug 3, 2:07 AM CDT | Flash Flood Warning | FSD | Cherokee, Ida, Plymouth, Woodbury | 3 hr |
| Aug 8, 5:31 AM CDT | Flash Flood Warning | ARX | Allamakee, Winneshiek | 118 min |
| Aug 9, 2:31 PM CDT | Flash Flood Warning | DVN | Buchanan, Delaware, Dubuque | 6 hr |
| Aug 9, 8:54 PM CDT | Flash Flood Warning | DVN | Des Moines | 3 hr |
| Aug 9, 9:36 PM CDT | Flash Flood Warning | DVN | Dubuque, Jackson | 3 hr |
| Aug 17, 12:19 AM CDT | Flash Flood Warning | DVN | Lee | 8 hr |
| Aug 24, 11:55 PM CDT | Flash Flood Warning | FSD | Plymouth, Woodbury | 3 hr |
| Aug 26, 1:27 AM CDT | Flash Flood Warning | DVN | Benton, Jones, Linn | 3 hr |
| Aug 26, 9:17 AM CDT | Flash Flood Warning | DVN | Keokuk, Washington | 6 hr |
| Aug 26, 10:14 AM CDT | Flash Flood Warning | DVN | Muscatine, Scott | 6 hr |
| Aug 26, 11:51 AM CDT | Flash Flood Warning | DVN | Clinton | 6 hr |
| Aug 27, 12:57 AM CDT | Flash Flood Warning | DVN | Henry, Jefferson, Keokuk, Washington | 6 hr |
| Aug 27, 2:06 AM CDT | Flash Flood Warning | DVN | Cedar, Clinton, Iowa, Johnson, Linn, Muscatine and 1 more | 3 hr |
| Aug 27, 7:55 AM CDT | Flash Flood Warning | DVN | Benton, Iowa, Johnson, Keokuk, Linn | 6 hr |
| Aug 27, 1:42 PM CDT | Flash Flood Warning | DVN | Jackson, Jones | 6 hr |
| Aug 27, 5:06 PM CDT | Flash Flood Warning | DVN | Cedar, Clinton, Jones | 6 hr |
| Aug 27, 5:51 PM CDT | Flash Flood Warning | DVN | Johnson | 6 hr |
| Aug 27, 5:53 PM CDT | Flash Flood Warning | DVN | Des Moines, Henry, Jefferson, Lee, Van Buren | 6 hr |
| Aug 27, 6:17 PM CDT | Flash Flood Warning | DVN | Muscatine, Scott | 6 hr |
| Aug 27, 6:31 PM CDT | Flash Flood Warning | DVN | Louisa, Washington | 6 hr |
| Aug 27, 9:34 PM CDT | Flash Flood Warning | DVN | Des Moines, Lee | 2 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Des Moines County3
- Lee County3
- Jones County3
- Linn County3
- Keokuk County3
- Washington County3
- Muscatine County3
- Scott County3
- Clinton County3
- Johnson County3
- Plymouth County2
- Woodbury County2
- Dubuque County2
- Jackson County2
- Benton County2
- Henry County2
- Jefferson County2
- Cedar County2
- Iowa County2
- Cherokee County1
- Ida County1
- Allamakee County1
- Winneshiek County1
- Buchanan County1
- Delaware County1
- Van Buren County1
- Louisa County1
Nearby
Alerts in force nowTornadoes on recordThe radar archive20082010
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.