Alert archive / Iowa / Flash Flood Warnings
Flash Flood Warnings in Iowa, 2016
131 flash flood warnings in 2016. 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 2016. Tap one for its archive.
- Flash Flood Warnings
- 131
- Busiest month
- September58 flash flood warnings
- Busiest day
- September 22, 201615 flash flood warnings
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 22, 12:29 AM CST | Flash Flood Warning | DMX | Webster | 6 hr |
| Apr 27, 6:04 PM CDT | Flash Flood Warning | OAX | Montgomery, Page | 5 hr |
| May 9, 8:51 PM CDT | Flash Flood Warning | FSD | Cherokee | 5 hr |
| May 9, 10:26 PM CDT | Flash Flood Warning | DMX | Audubon, Carroll, Guthrie | 6 hr |
| May 23, 5:25 PM CDT | Flash Flood Warning | FSD | O'Brien, Plymouth, Sioux | 4 hr |
| May 23, 5:58 PM CDT | Flash Flood Warning | FSD | Plymouth, Sioux | 4 hr |
| May 23, 6:09 PM CDT | Flash Flood Warning | FSD | Osceola | 4 hr |
| May 26, 4:31 PM CDT | Flash Flood Warning | OAX | Pottawattamie | 3 hr |
| May 26, 4:49 PM CDT | Flash Flood Warning | OAX | Fremont, Mills | 3 hr |
| May 26, 6:03 PM CDT | Flash Flood Warning | DMX | Cass | 6 hr |
| May 27, 8:28 PM CDT | Flash Flood Warning | DMX | Wapello | 6 hr |
| May 27, 8:37 PM CDT | Flash Flood Warning | DVN | Iowa, Jefferson, Johnson, Keokuk, Washington | 6 hr |
| May 30, 11:05 PM CDT | Flash Flood Warning | DVN | Buchanan | 4 hr |
| Jun 10, 10:33 PM CDT | Flash Flood Warning | DMX | Cerro Gordo, Winnebago, Worth | 6 hr |
| Jun 11, 1:14 AM CDT | Flash Flood Warning | ARX | Chickasaw, Floyd | 3 hr |
| Jun 14, 12:27 PM CDT | Flash Flood Warning | FSD | Plymouth, Sioux, Woodbury | 3 hr |
| Jun 14, 1:48 PM CDT | Flash Flood Warning | FSD | Cherokee, Lyon, O'Brien, Osceola, Plymouth, Sioux and 1 more | 3 hr |
| Jun 14, 2:11 PM CDT | Flash Flood Warning | FSD | Buena Vista, Cherokee, Clay, Dickinson, Ida, O'Brien and 2 more | 34 min |
| Jun 14, 2:42 PM CDT | Flash Flood Warning | FSD | Buena Vista, Cherokee, Clay, Dickinson, Ida, O'Brien and 2 more | 2 hr |
| Jun 14, 5:24 PM CDT | Flash Flood Warning | ARX | Floyd, Howard, Mitchell | 3 hr |
| Jun 14, 5:47 PM CDT | Flash Flood Warning | DMX | Cerro Gordo | 6 hr |
| Jun 14, 6:26 PM CDT | Flash Flood Warning | ARX | Allamakee, Clayton, Fayette | 3 hr |
| Jun 14, 8:16 PM CDT | Flash Flood Warning | DVN | Dubuque | 6 hr |
| Jun 14, 8:24 PM CDT | Flash Flood Warning | DVN | Jackson | 6 hr |
| Jun 17, 11:33 PM CDT | Flash Flood Warning | FSD | Cherokee, Ida, Plymouth, Woodbury | 6 hr |
| Jun 22, 12:03 AM CDT | Flash Flood Warning | DMX | Cerro Gordo, Hancock, Kossuth, Winnebago, Worth | 6 hr |
| Jun 22, 12:17 AM CDT | Flash Flood Warning | ARX | Floyd | 4 hr |
| Jun 22, 12:53 AM CDT | Flash Flood Warning | DMX | Black Hawk, Bremer, Butler, Grundy | 6 hr |
| Jun 22, 1:37 AM CDT | Flash Flood Warning | DVN | Benton, Iowa, Johnson, Linn | 6 hr |
| Jun 22, 2:38 AM CDT | Flash Flood Warning | DMX | Tama | 6 hr |
| Jun 22, 4:18 AM CDT | Flash Flood Warning | DVN | Johnson, Louisa, Muscatine, Washington | 6 hr |
| Jun 30, 4:36 AM CDT | Flash Flood Warning | FSD | Ida, Woodbury | 3 hr |
| Jul 6, 2:08 AM CDT | Flash Flood Warning | DVN | Jones, Linn | 4 hr |
| Jul 17, 1:27 AM CDT | Flash Flood Warning | DMX | Cerro Gordo, Emmet, Hancock, Kossuth, Palo Alto, Winnebago and 1 more | 6 hr |
| Jul 17, 1:47 AM CDT | Flash Flood Warning | ARX | Mitchell | 3 hr |
| Jul 17, 2:44 AM CDT | Flash Flood Warning | ARX | Chickasaw, Floyd, Howard | 4 hr |
| Jul 18, 3:49 AM CDT | Flash Flood Warning | OAX | Montgomery, Page, Pottawattamie | 5 hr |
| Jul 18, 3:53 AM CDT | Flash Flood Warning | DMX | Adams, Cass, Ringgold, Taylor, Union | 6 hr |
| Jul 18, 4:19 AM CDT | Flash Flood Warning | OAX | Montgomery, Page | 5 hr |
| Jul 19, 10:14 AM CDT | Flash Flood Warning | DMX | Calhoun, Humboldt, Pocahontas, Webster | 6 hr |
| Jul 19, 12:36 PM CDT | Flash Flood Warning | DMX | Dallas, Madison, Polk, Warren | 6 hr |
| Jul 19, 1:34 PM CDT | Flash Flood Warning | DMX | Madison, Mahaska, Marion, Warren | 6 hr |
| Jul 19, 2:59 PM CDT | Flash Flood Warning | DMX | Appanoose, Decatur, Lucas, Monroe, Wayne | 6 hr |
| Jul 20, 5:09 AM CDT | Flash Flood Warning | DVN | Des Moines, Louisa | 6 hr |
| Jul 23, 12:03 PM CDT | Flash Flood Warning | ARX | Clayton | 6 hr |
| Jul 23, 2:04 PM CDT | Flash Flood Warning | ARX | Chickasaw, Fayette, Howard, Winneshiek | 3 hr |
| Jul 23, 2:57 PM CDT | Flash Flood Warning | ARX | Allamakee, Clayton | 3 hr |
| Jul 23, 4:04 PM CDT | Flash Flood Warning | DVN | Buchanan | 6 hr |
| Jul 23, 4:22 PM CDT | Flash Flood Warning | DVN | Delaware | 6 hr |
| Jul 23, 4:40 PM CDT | Flash Flood Warning | DVN | Dubuque, Jackson, Jones | 6 hr |
| Jul 29, 7:12 PM CDT | Flash Flood Warning | DVN | Louisa, Washington | 6 hr |
| Aug 1, 4:08 AM CDT | Flash Flood Warning | DMX | Ringgold, Taylor | 6 hr |
| Aug 1, 9:02 AM CDT | Flash Flood Warning | DMX | Adair, Guthrie, Madison, Ringgold, Union | 6 hr |
| Aug 10, 5:25 PM CDT | Flash Flood Warning | DMX | Dallas | 6 hr |
| Aug 11, 7:48 PM CDT | Flash Flood Warning | DVN | Linn | 3 hr |
| Aug 11, 9:31 PM CDT | Flash Flood Warning | DVN | Benton, Iowa, Johnson, Linn | 6 hr |
| Aug 11, 11:05 PM CDT | Flash Flood Warning | DVN | Cedar | 6 hr |
| Aug 16, 6:04 PM CDT | Flash Flood Warning | FSD | Lyon | 3 hr |
| Aug 19, 4:24 PM CDT | Flash Flood Warning | DMX | Hancock, Kossuth, Winnebago | 6 hr |
| Aug 19, 5:49 PM CDT | Flash Flood Warning | DMX | Hamilton, Humboldt, Webster, Wright | 6 hr |
| Aug 23, 8:21 PM CDT | Flash Flood Warning | OAX | Monona | 3 hr |
| Aug 23, 9:21 PM CDT | Flash Flood Warning | OAX | Harrison, Pottawattamie | 4 hr |
| Aug 23, 10:11 PM CDT | Flash Flood Warning | ARX | Winneshiek | 4 hr |
| Aug 23, 11:23 PM CDT | Flash Flood Warning | OAX | Pottawattamie | 3 hr |
| Aug 24, 12:21 AM CDT | Flash Flood Warning | ARX | Howard, Mitchell | 4 hr |
| Aug 24, 12:29 AM CDT | Flash Flood Warning | DMX | Winnebago, Worth | 6 hr |
| Aug 24, 1:02 AM CDT | Flash Flood Warning | ARX | Allamakee, Winneshiek | 6 hr |
| Aug 24, 3:48 AM CDT | Flash Flood Warning | ARX | Chickasaw, Howard | 3 hr |
| Aug 24, 6:46 AM CDT | Flash Flood Warning | ARX | Allamakee, Chickasaw, Howard, Winneshiek | 6 hr |
| Aug 28, 5:23 PM CDT | Flash Flood Warning | DMX | Ringgold | 6 hr |
| Aug 29, 12:44 PM CDT | Flash Flood Warning | DMX | Humboldt, Kossuth, Wright | 6 hr |
| Aug 29, 5:25 PM CDT | Flash Flood Warning | DMX | Boone, Story | 6 hr |
| Aug 29, 6:43 PM CDT | Flash Flood Warning | DVN | Van Buren | 6 hr |
| Sep 7, 1:45 AM CDT | Flash Flood Warning | FSD | Plymouth, Sioux | 4 hr |
| Sep 7, 2:12 AM CDT | Flash Flood Warning | ARX | Allamakee, Winneshiek | 5 hr |
| Sep 7, 7:14 AM CDT | Flash Flood Warning | ARX | Allamakee, Winneshiek | 3 hr |
| Sep 7, 8:36 PM CDT | Flash Flood Warning | DVN | Des Moines | 6 hr |
| Sep 8, 1:34 AM CDT | Flash Flood Warning | DVN | Linn | 4 hr |
| Sep 9, 11:31 AM CDT | Flash Flood Warning | DMX | Bremer, Butler, Franklin | 6 hr |
| Sep 9, 12:28 PM CDT | Flash Flood Warning | ARX | Chickasaw, Fayette, Floyd, Howard, Winneshiek | 3 hr |
| Sep 9, 1:02 PM CDT | Flash Flood Warning | ARX | Allamakee, Winneshiek | 3 hr |
| Sep 9, 3:16 PM CDT | Flash Flood Warning | ARX | Chickasaw, Fayette, Floyd, Howard, Winneshiek | 3 hr |
| Sep 15, 11:34 AM CDT | Flash Flood Warning | FSD | Lyon | 3 hr |
| Sep 15, 1:40 PM CDT | Flash Flood Warning | FSD | Lyon, Osceola, Sioux | 3 hr |
| Sep 15, 2:11 PM CDT | Flash Flood Warning | FSD | Lyon | 3 hr |
| Sep 15, 4:07 PM CDT | Flash Flood Warning | FSD | Clay, Dickinson, O'Brien, Osceola, Sioux | 3 hr |
| Sep 15, 4:37 PM CDT | Flash Flood Warning | FSD | Lyon, Osceola, Sioux | 3 hr |
| Sep 15, 5:53 PM CDT | Flash Flood Warning | FSD | Buena Vista, Cherokee, Clay, O'Brien | 3 hr |
| Sep 15, 6:10 PM CDT | Flash Flood Warning | DMX | Calhoun, Humboldt, Pocahontas, Sac, Webster, Wright | 6 hr |
| Sep 15, 6:34 PM CDT | Flash Flood Warning | OAX | Monona | 4 hr |
| Sep 15, 6:54 PM CDT | Flash Flood Warning | OAX | Harrison, Monona | 4 hr |
| Sep 15, 7:47 PM CDT | Flash Flood Warning | OAX | Monona | 5 hr |
| Sep 15, 8:44 PM CDT | Flash Flood Warning | OAX | Harrison, Monona, Shelby | 5 hr |
| Sep 15, 9:58 PM CDT | Flash Flood Warning | DMX | Calhoun, Carroll, Crawford, Greene, Sac | 6 hr |
| Sep 15, 10:09 PM CDT | Flash Flood Warning | OAX | Monona | 6 hr |
| Sep 15, 10:52 PM CDT | Flash Flood Warning | OAX | Harrison, Monona | 6 hr |
| Sep 16, 12:20 AM CDT | Flash Flood Warning | OAX | Harrison | 4 hr |
| Sep 16, 1:25 AM CDT | Flash Flood Warning | OAX | Harrison, Pottawattamie | 3 hr |
| Sep 16, 1:40 AM CDT | Flash Flood Warning | OAX | Harrison, Monona, Pottawattamie, Shelby | 3 hr |
| Sep 21, 6:44 AM CDT | Flash Flood Warning | ARX | Allamakee | 6 hr |
| Sep 21, 4:47 PM CDT | Flash Flood Warning | ARX | Floyd | 4 hr |
| Sep 21, 4:50 PM CDT | Flash Flood Warning | DMX | Cerro Gordo | 6 hr |
| Sep 21, 6:03 PM CDT | Flash Flood Warning | ARX | Floyd | 3 hr |
| Sep 21, 6:23 PM CDT | Flash Flood Warning | ARX | Mitchell | 6 hr |
| Sep 21, 6:33 PM CDT | Flash Flood Warning | DMX | Cerro Gordo, Worth | 6 hr |
| Sep 21, 6:58 PM CDT | Flash Flood Warning | DMX | Butler | 12 hr |
| Sep 21, 7:05 PM CDT | Flash Flood Warning | ARX | Chickasaw | 5 hr |
| Sep 21, 8:11 PM CDT | Flash Flood Warning | ARX | Floyd | 8 hr |
| Sep 21, 8:54 PM CDT | Flash Flood Warning | DMX | Bremer | 6 hr |
| Sep 22, 12:04 AM CDT | Flash Flood Warning | ARX | Chickasaw | 4 hr |
| Sep 22, 12:48 AM CDT | Flash Flood Warning | ARX | Allamakee | 6 hr |
| Sep 22, 1:00 AM CDT | Flash Flood Warning | ARX | Howard, Mitchell, Winneshiek | 6 hr |
| Sep 22, 2:20 AM CDT | Flash Flood Warning | ARX | Chickasaw, Fayette, Floyd | 6 hr |
| Sep 22, 3:55 AM CDT | Flash Flood Warning | ARX | Chickasaw, Floyd | 4 hr |
| Sep 22, 4:09 AM CDT | Flash Flood Warning | ARX | Clayton | 6 hr |
| Sep 22, 4:13 AM CDT | Flash Flood Warning | DMX | Cerro Gordo, Hancock | 6 hr |
| Sep 22, 6:51 AM CDT | Flash Flood Warning | ARX | Allamakee | 3 hr |
| Sep 22, 7:00 AM CDT | Flash Flood Warning | DMX | Butler | 4 hr |
| Sep 22, 8:02 AM CDT | Flash Flood Warning | ARX | Chickasaw, Fayette, Floyd | 5 hr |
| Sep 22, 9:38 AM CDT | Flash Flood Warning | ARX | Allamakee | 3 hr |
| Sep 22, 10:19 AM CDT | Flash Flood Warning | ARX | Clayton | 3 hr |
| Sep 22, 9:37 PM CDT | Flash Flood Warning | DMX | Story | 6 hr |
| Sep 22, 9:48 PM CDT | Flash Flood Warning | DVN | Buchanan, Delaware, Dubuque, Jackson | 6 hr |
| Sep 22, 11:24 PM CDT | Flash Flood Warning | DMX | Bremer, Butler, Cerro Gordo, Franklin | 6 hr |
| Sep 23, 12:00 AM CDT | Flash Flood Warning | ARX | Chickasaw, Clayton, Fayette, Floyd | 5 hr |
| Sep 23, 1:22 AM CDT | Flash Flood Warning | DMX | Hancock, Wright | 6 hr |
| Sep 23, 3:36 AM CDT | Flash Flood Warning | DMX | Franklin, Humboldt, Kossuth, Wright | 6 hr |
| Sep 23, 3:38 AM CDT | Flash Flood Warning | DVN | Buchanan, Delaware | 6 hr |
| Sep 23, 4:33 AM CDT | Flash Flood Warning | DVN | Benton, Iowa, Johnson, Linn | 6 hr |
| Sep 23, 5:42 AM CDT | Flash Flood Warning | DMX | Palo Alto, Pocahontas | 4 hr |
| Sep 24, 10:19 PM CDT | Flash Flood Warning | DMX | Clarke, Madison, Warren | 6 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Chickasaw County13
- Floyd County13
- Allamakee County11
- Winneshiek County10
- Howard County9
- Sioux County8
- Cerro Gordo County8
- Monona County8
- Osceola County7
- Fayette County7
- Harrison County7
- Cherokee County6
- O'Brien County6
- Plymouth County6
- Pottawattamie County6
- Woodbury County6
- Lyon County6
- Clayton County6
- Linn County6
- Johnson County5
- Winnebago County5
- Worth County5
- Mitchell County5
- Hancock County5
- Kossuth County5
- Butler County5
- Humboldt County5
- Wright County5
- Webster County4
- Iowa County4
- Buchanan County4
- Clay County4
- Ida County4
- Bremer County4
- Ringgold County4
- Madison County4
- Montgomery County3
- Page County3
- Washington County3
- Buena Vista County3
50 more counties
- Dickinson County3
- Dubuque County3
- Jackson County3
- Benton County3
- Louisa County3
- Calhoun County3
- Pocahontas County3
- Warren County3
- Delaware County3
- Franklin County3
- Carroll County2
- Guthrie County2
- Cass County2
- Jones County2
- Palo Alto County2
- Taylor County2
- Union County2
- Dallas County2
- Des Moines County2
- Story County2
- Sac County2
- Shelby County2
- Audubon County1
- Fremont County1
- Mills County1
- Wapello County1
- Jefferson County1
- Keokuk County1
- Black Hawk County1
- Grundy County1
- Tama County1
- Muscatine County1
- Emmet County1
- Adams County1
- Polk County1
- Mahaska County1
- Marion County1
- Appanoose County1
- Decatur County1
- Lucas County1
- Monroe County1
- Wayne County1
- Adair County1
- Cedar County1
- Hamilton County1
- Boone County1
- Van Buren County1
- Crawford County1
- Greene County1
- Clarke County1
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordThe radar archive20152017
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.