Alert archive / Iowa / Flash Flood Watches
Flash Flood Watches in Iowa, 2009
28 flash flood watches in 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 watches reaches back to 2005.
Flash Flood Watches by county
Each county as a circle sized by its count in 2009. Tap one for its archive.
- Flash Flood Watches
- 28
- Busiest month
- August6 flash flood watches
- Busiest day
- April 26, 20094 flash flood watches
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 |
|---|---|---|---|---|
| Feb 12, 9:57 AM CST | Flash Flood Watch | DMX | Webster | 48 hr |
| Mar 6, 11:21 AM CST | Flash Flood Watch | DVN | Benton, Buchanan, Cedar, Clinton, Delaware, Des Moines and 15 more | 51 hr |
| Mar 7, 3:59 PM CST | Flash Flood Watch | DMX | Appanoose, Black Hawk, Bremer, Butler, Davis, Grundy and 10 more | 20 hr |
| Mar 9, 3:45 AM CDT | Flash Flood Watch | DMX | Appanoose, Davis, Decatur, Lucas, Mahaska, Marion and 4 more | 24 hr |
| Mar 9, 4:19 AM CDT | Flash Flood Watch | DVN | Cedar, Clinton, Des Moines, Henry, Iowa, Jefferson and 8 more | 32 hr |
| Mar 23, 3:40 PM CDT | Flash Flood Watch | DMX | Appanoose, Clarke, Davis, Decatur, Lucas, Mahaska and 5 more | 21 hr |
| Apr 26, 3:04 AM CDT | Flash Flood Watch | DVN | Benton, Buchanan, Cedar, Clinton, Delaware, Dubuque and 8 more | 24 hr |
| Apr 26, 3:30 AM CDT | Flash Flood Watch | OAX | Fremont, Mills, Montgomery, Page | 14 hr |
| Apr 26, 3:38 AM CDT | Flash Flood Watch | DMX | Adair, Adams, Appanoose, Audubon, Black Hawk, Boone and 34 more | 24 hr |
| Apr 26, 3:45 AM CDT | Flash Flood Watch | ARX | Allamakee, Chickasaw, Clayton, Fayette, Floyd, Howard and 2 more | 24 hr |
| Apr 29, 3:35 PM CDT | Flash Flood Watch | DVN | Lee, Van Buren | 19 hr |
| May 14, 3:19 PM CDT | Flash Flood Watch | DVN | Benton, Cedar, Clinton, Des Moines, Henry, Iowa and 12 more | 31 hr |
| May 14, 4:00 PM CDT | Flash Flood Watch | DMX | Adams, Appanoose, Clarke, Davis, Decatur, Jasper and 11 more | 26 hr |
| Jun 1, 3:44 PM CDT | Flash Flood Watch | OAX | Fremont, Harrison, Mills, Monona, Montgomery, Page and 2 more | 15 hr |
| Jun 9, 3:48 AM CDT | Flash Flood Watch | DMX | Adair, Adams, Appanoose, Cass, Clarke, Davis and 12 more | 17 hr |
| Jun 9, 3:37 PM CDT | Flash Flood Watch | DVN | Lee, Van Buren | 5 hr |
| Jun 15, 4:01 PM CDT | Flash Flood Watch | OAX | Fremont, Page | 10 hr |
| Jul 7, 9:01 PM CDT | Flash Flood Watch | DMX | Adair, Audubon, Boone, Calhoun, Carroll, Cass and 23 more | 6 hr |
| Jul 9, 12:07 PM CDT | Flash Flood Watch | FSD | Buena Vista, Cherokee, Clay, Dickinson, Ida, Lyon and 5 more | 21 hr |
| Jul 9, 3:17 PM CDT | Flash Flood Watch | OAX | Monona | 13 hr |
| Aug 9, 2:35 PM CDT | Flash Flood Watch | ARX | Clayton, Fayette | 12 hr |
| Aug 9, 3:35 PM CDT | Flash Flood Watch | DMX | Black Hawk, Bremer, Grundy, Hardin, Tama | 5 hr |
| Aug 9, 3:41 PM CDT | Flash Flood Watch | DVN | Benton, Buchanan, Cedar, Clinton, Delaware, Dubuque and 5 more | 11 hr |
| Aug 17, 2:55 AM CDT | Flash Flood Watch | DMX | Appanoose, Clarke, Davis, Decatur, Lucas, Monroe and 3 more | 9 hr |
| Aug 17, 3:49 AM CDT | Flash Flood Watch | DVN | Des Moines, Henry, Jefferson, Lee, Van Buren | 11 hr |
| Aug 26, 9:10 AM CDT | Flash Flood Watch | DVN | Benton, Buchanan, Cedar, Clinton, Delaware, Des Moines and 13 more | 42 hr |
| Oct 29, 11:01 AM CDT | Flash Flood Watch | DMX | Adair, Adams, Appanoose, Black Hawk, Boone, Bremer and 29 more | 11 hr |
| Oct 29, 2:46 PM CDT | Flash Flood Watch | DVN | Des Moines, Henry, Jefferson, Keokuk, Lee, Louisa and 4 more | 13 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Lucas County9
- Monroe County9
- Appanoose County8
- Davis County8
- Mahaska County8
- Marion County8
- Wapello County8
- Wayne County8
- Jefferson County7
- Lee County7
- Van Buren County7
- Decatur County7
- Clarke County7
- Cedar County6
- Clinton County6
- Des Moines County6
- Henry County6
- Iowa County6
- Johnson County6
- Keokuk County6
- Washington County6
- Poweshiek County6
- Benton County5
- Jackson County5
- Jones County5
- Linn County5
- Louisa County5
- Muscatine County5
- Scott County5
- Jasper County5
- Ringgold County5
- Union County5
- Warren County5
- Buchanan County4
- Delaware County4
- Dubuque County4
- Black Hawk County4
- Bremer County4
- Grundy County4
- Marshall County4
53 more counties
- Tama County4
- Adair County4
- Adams County4
- Cass County4
- Hardin County4
- Madison County4
- Taylor County4
- Webster County3
- Butler County3
- Fremont County3
- Page County3
- Boone County3
- Dallas County3
- Guthrie County3
- Hamilton County3
- Polk County3
- Story County3
- Mills County2
- Montgomery County2
- Audubon County2
- Carroll County2
- Cerro Gordo County2
- Franklin County2
- Greene County2
- Wright County2
- Clayton County2
- Fayette County2
- Monona County2
- Allamakee County1
- Chickasaw County1
- Floyd County1
- Howard County1
- Mitchell County1
- Winneshiek County1
- Harrison County1
- Pottawattamie County1
- Shelby County1
- Calhoun County1
- Crawford County1
- Humboldt County1
- Pocahontas County1
- Sac County1
- Buena Vista County1
- Cherokee County1
- Clay County1
- Dickinson County1
- Ida County1
- Lyon County1
- O'Brien County1
- Osceola County1
- Plymouth County1
- Sioux County1
- Woodbury County1
The busiest days
Days with the most alerts issued, by UTC date.
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.