Alert archive / Iowa / River Flood Warnings
River Flood Warnings in Iowa, 2009
223 river flood warnings 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 river flood warnings reaches back to 2005.
River Flood Warnings by county
Each county as a circle sized by its count in 2009. Tap one for its archive.
- River Flood Warnings
- 223
- Busiest month
- March50 river flood warnings
- Busiest day
- March 8, 200921 river 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 7, 7:56 PM CST | River Flood Warning | DVN | Johnson, Washington | 13 hr |
| Feb 8, 3:21 AM CST | River Flood Warning | DVN | Iowa, Johnson | 9 days |
| Feb 8, 6:46 AM CST | River Flood Warning | DMX | Mahaska | 5 days |
| Feb 9, 11:39 PM CST | River Flood Warning | DMX | Polk | 6 days |
| Feb 10, 8:34 AM CST | River Flood Warning | OAX | Monona | 4 hr |
| Feb 10, 9:49 AM CST | River Flood Warning | DVN | Johnson, Louisa, Washington | 56 hr |
| Feb 10, 9:55 AM CST | River Flood Warning | DMX | Polk | 5 days |
| Feb 10, 11:19 AM CST | River Flood Warning | DVN | Jackson | 9 hr |
| Feb 11, 3:23 AM CST | River Flood Warning | DMX | Cerro Gordo, Floyd, Worth | 10 hr |
| Feb 11, 9:46 AM CST | River Flood Warning | FSD | Sioux | 3 days |
| Feb 11, 9:46 AM CST | River Flood Warning | FSD | Plymouth | 3 days |
| Feb 11, 9:46 AM CST | River Flood Warning | FSD | Clay, O'Brien | 4 days |
| Feb 11, 9:46 AM CST | River Flood Warning | FSD | Dickinson | 3 days |
| Feb 11, 9:46 AM CST | River Flood Warning | FSD | Clay, Dickinson | 53 hr |
| Feb 11, 9:46 AM CST | River Flood Warning | FSD | Cherokee | 67 hr |
| Feb 11, 3:22 PM CST | River Flood Warning | DMX | Boone, Webster | 6 hr |
| Feb 11, 3:52 PM CST | River Flood Warning | DMX | Webster | 5 hr |
| Feb 11, 9:30 PM CST | River Flood Warning | DMX | Black Hawk, Butler | 31 hr |
| Feb 14, 2:23 PM CST | River Flood Warning | DMX | Black Hawk, Butler | 29 hr |
| Mar 7, 4:53 PM CST | River Flood Warning | DVN | Clinton, Scott | 9 days |
| Mar 7, 9:04 PM CST | River Flood Warning | DVN | Iowa, Johnson | 8 days |
| Mar 8, 3:49 AM CDT | River Flood Warning | DMX | Madison, Warren | 30 hr |
| Mar 8, 3:50 AM CDT | River Flood Warning | DVN | Johnson, Washington | 5 days |
| Mar 8, 3:56 AM CDT | River Flood Warning | DMX | Mahaska | 6 days |
| Mar 8, 5:29 AM CDT | River Flood Warning | DVN | Johnson, Louisa, Washington | 4 days |
| Mar 8, 5:29 AM CDT | River Flood Warning | DVN | Louisa | 6 days |
| Mar 8, 5:29 AM CDT | River Flood Warning | DVN | Louisa | 8 days |
| Mar 8, 5:29 AM CDT | River Flood Warning | DVN | Keokuk | 6 days |
| Mar 8, 7:35 AM CDT | River Flood Warning | DMX | Black Hawk, Butler | 4 days |
| Mar 8, 9:04 AM CDT | River Flood Warning | DVN | Cedar, Louisa, Muscatine | 7 days |
| Mar 8, 9:23 AM CDT | River Flood Warning | DMX | Lucas | 4 days |
| Mar 8, 10:35 AM CDT | River Flood Warning | DVN | Jackson | 34 hr |
| Mar 8, 10:35 AM CDT | River Flood Warning | DVN | Des Moines, Henry, Lee | 7 days |
| Mar 8, 10:35 AM CDT | River Flood Warning | DVN | Lee | 3 days |
| Mar 8, 12:31 PM CDT | River Flood Warning | DMX | Madison, Warren | 3 days |
| Mar 8, 12:31 PM CDT | River Flood Warning | DMX | Mahaska, Marion | 28 hr |
| Mar 8, 1:09 PM CDT | River Flood Warning | DMX | Appanoose, Wayne | 20 hr |
| Mar 8, 2:02 PM CDT | River Flood Warning | DMX | Wapello | 45 hr |
| Mar 8, 5:21 PM CDT | River Flood Warning | DMX | Polk | 3 hr |
| Mar 8, 5:30 PM CDT | River Flood Warning | DMX | Wapello | 28 hr |
| Mar 8, 5:55 PM CDT | River Flood Warning | DMX | Polk, Story | 19 hr |
| Mar 8, 8:04 PM CDT | River Flood Warning | DVN | Lee, Van Buren | 15 hr |
| Mar 8, 9:15 PM CDT | River Flood Warning | DMX | Marshall | 15 hr |
| Mar 8, 9:32 PM CDT | River Flood Warning | DVN | Des Moines, Louisa | 5 days |
| Mar 8, 9:32 PM CDT | River Flood Warning | DVN | Des Moines | 6 days |
| Mar 8, 9:32 PM CDT | River Flood Warning | DVN | Des Moines, Lee | 7 days |
| Mar 9, 11:44 AM CDT | River Flood Warning | DVN | Des Moines, Louisa | 4 days |
| Mar 9, 11:44 AM CDT | River Flood Warning | DVN | Lee | 4 days |
| Mar 9, 11:44 AM CDT | River Flood Warning | DVN | Jones, Linn | 58 hr |
| Mar 10, 3:02 AM CDT | River Flood Warning | DMX | Decatur | 11 hr |
| Mar 10, 5:40 AM CDT | River Flood Warning | DMX | Madison, Warren | 14 hr |
| Mar 10, 8:19 AM CDT | River Flood Warning | DMX | Appanoose, Wayne | 11 hr |
| Mar 10, 9:36 AM CDT | River Flood Warning | DMX | Mahaska, Marion | 14 hr |
| Mar 10, 10:09 AM CDT | River Flood Warning | DMX | Wapello | 4 days |
| Mar 14, 7:44 AM CDT | River Flood Warning | DMX | Wapello | 7 days |
| Mar 15, 9:46 AM CDT | River Flood Warning | DVN | Lee | 25 hr |
| Mar 22, 11:09 AM CDT | River Flood Warning | FSD | Sioux | 24 hr |
| Mar 22, 11:09 AM CDT | River Flood Warning | FSD | Plymouth | 24 hr |
| Mar 22, 11:22 AM CDT | River Flood Warning | FSD | Clay, Dickinson | 24 hr |
| Mar 23, 8:41 AM CDT | River Flood Warning | FSD | Buena Vista | 3 hr |
| Mar 24, 3:50 AM CDT | River Flood Warning | DMX | Taylor | 7 hr |
| Mar 24, 8:43 AM CDT | River Flood Warning | DMX | Lucas | 3 days |
| Mar 24, 10:20 AM CDT | River Flood Warning | DMX | Wapello | 48 hr |
| Mar 24, 10:20 AM CDT | River Flood Warning | DMX | Wapello | 5 days |
| Mar 24, 10:20 AM CDT | River Flood Warning | DMX | Mahaska | 3 days |
| Mar 24, 10:20 AM CDT | River Flood Warning | DMX | Decatur | 29 hr |
| Mar 24, 10:20 AM CDT | River Flood Warning | DMX | Appanoose, Wayne | 23 hr |
| Mar 24, 3:38 PM CDT | River Flood Warning | DMX | Madison, Warren | 6 hr |
| Mar 25, 10:37 AM CDT | River Flood Warning | DVN | Lee | 24 hr |
| Apr 25, 9:02 PM CDT | River Flood Warning | DMX | Decatur | 48 hr |
| Apr 25, 9:02 PM CDT | River Flood Warning | DMX | Lucas, Wayne | 5 days |
| Apr 25, 9:02 PM CDT | River Flood Warning | DMX | Appanoose, Wayne | 55 hr |
| Apr 26, 7:10 AM CDT | River Flood Warning | DMX | Taylor | 24 hr |
| Apr 26, 9:49 AM CDT | River Flood Warning | DVN | Jones, Linn | 5 days |
| Apr 26, 9:49 AM CDT | River Flood Warning | DVN | Clinton, Scott | 10 days |
| Apr 26, 9:56 AM CDT | River Flood Warning | DVN | Keokuk | 6 days |
| Apr 26, 10:01 AM CDT | River Flood Warning | DVN | Lee | 35 hr |
| Apr 26, 10:52 AM CDT | River Flood Warning | DVN | Iowa, Johnson | 12 days |
| Apr 26, 1:15 PM CDT | River Flood Warning | DMX | Polk, Story | 27 hr |
| Apr 26, 1:24 PM CDT | River Flood Warning | DMX | Madison, Warren | 48 hr |
| Apr 26, 3:19 PM CDT | River Flood Warning | DMX | Madison, Warren | 4 days |
| Apr 26, 3:51 PM CDT | River Flood Warning | DMX | Story | 20 hr |
| Apr 26, 4:08 PM CDT | River Flood Warning | DMX | Warren | 19 hr |
| Apr 26, 9:15 PM CDT | River Flood Warning | ARX | Clayton | 24 hr |
| Apr 26, 9:15 PM CDT | River Flood Warning | ARX | Clayton | 24 hr |
| Apr 26, 9:16 PM CDT | River Flood Warning | DMX | Jasper, Marion, Polk | 23 hr |
| Apr 26, 9:16 PM CDT | River Flood Warning | DMX | Mahaska, Marion | 7 days |
| Apr 26, 9:27 PM CDT | River Flood Warning | DMX | Polk | 37 hr |
| Apr 26, 9:27 PM CDT | River Flood Warning | DMX | Polk | 47 hr |
| Apr 26, 9:27 PM CDT | River Flood Warning | DMX | Dallas, Greene | 13 hr |
| Apr 26, 9:27 PM CDT | River Flood Warning | DMX | Dallas, Polk | 31 hr |
| Apr 26, 9:27 PM CDT | River Flood Warning | DMX | Polk | 43 hr |
| Apr 26, 9:27 PM CDT | River Flood Warning | DMX | Polk | 43 hr |
| Apr 26, 9:27 PM CDT | River Flood Warning | DMX | Mahaska, Marion | 35 hr |
| Apr 26, 9:45 PM CDT | River Flood Warning | DMX | Marshall | 42 hr |
| Apr 26, 9:45 PM CDT | River Flood Warning | DMX | Black Hawk, Bremer, Butler | 59 hr |
| Apr 26, 9:45 PM CDT | River Flood Warning | DMX | Black Hawk, Butler | 6 hr |
| Apr 27, 1:30 AM CDT | River Flood Warning | DMX | Polk | 10 hr |
| Apr 27, 9:20 AM CDT | River Flood Warning | OAX | Montgomery | 10 hr |
| Apr 27, 11:21 AM CDT | River Flood Warning | DMX | Wapello | 23 hr |
| Apr 27, 1:38 PM CDT | River Flood Warning | DVN | Delaware, Jones | 13 hr |
| Apr 27, 7:35 PM CDT | River Flood Warning | DMX | Black Hawk, Butler | 28 hr |
| Apr 29, 8:56 AM CDT | River Flood Warning | DVN | Louisa | 6 days |
| Apr 29, 7:42 PM CDT | River Flood Warning | DVN | Cedar, Louisa, Muscatine | 4 days |
| Apr 30, 6:06 AM CDT | River Flood Warning | DMX | Wapello | 15 hr |
| Apr 30, 8:40 AM CDT | River Flood Warning | DVN | Lee | 63 hr |
| Apr 30, 9:26 AM CDT | River Flood Warning | DVN | Des Moines, Henry, Lee | 43 hr |
| Apr 30, 10:29 AM CDT | River Flood Warning | DVN | Des Moines | 4 days |
| Apr 30, 10:29 AM CDT | River Flood Warning | DVN | Des Moines, Lee | 6 days |
| May 2, 6:11 AM CDT | River Flood Warning | DVN | Louisa | 28 hr |
| May 13, 8:07 PM CDT | River Flood Warning | DVN | Iowa, Johnson | 3 days |
| May 15, 9:58 AM CDT | River Flood Warning | DMX | Lucas, Wayne | 40 hr |
| May 15, 9:58 AM CDT | River Flood Warning | DMX | Appanoose, Wayne | 28 hr |
| May 15, 10:10 AM CDT | River Flood Warning | DVN | Clinton, Scott | 11 hr |
| May 15, 10:10 AM CDT | River Flood Warning | DVN | Cedar, Louisa, Muscatine | 11 hr |
| May 15, 10:10 AM CDT | River Flood Warning | DVN | Johnson, Louisa, Washington | 11 hr |
| May 15, 10:10 AM CDT | River Flood Warning | DVN | Louisa | 28 hr |
| May 15, 10:10 AM CDT | River Flood Warning | DVN | Louisa | 52 hr |
| May 15, 10:10 AM CDT | River Flood Warning | DVN | Johnson, Washington | 48 hr |
| May 15, 10:10 AM CDT | River Flood Warning | DVN | Keokuk | 43 hr |
| May 15, 10:10 AM CDT | River Flood Warning | DVN | Des Moines, Henry, Lee | 4 days |
| May 15, 10:10 AM CDT | River Flood Warning | DVN | Lee | 43 hr |
| May 15, 10:58 AM CDT | River Flood Warning | DMX | Taylor | 8 hr |
| May 15, 1:33 PM CDT | River Flood Warning | DMX | Wapello | 19 hr |
| May 15, 2:20 PM CDT | River Flood Warning | DMX | Decatur | 5 hr |
| May 15, 3:57 PM CDT | River Flood Warning | DVN | Des Moines, Lee | 66 hr |
| May 15, 8:55 PM CDT | River Flood Warning | DMX | Mahaska, Marion | 23 hr |
| May 16, 10:20 AM CDT | River Flood Warning | DVN | Des Moines | 11 hr |
| May 16, 10:20 AM CDT | River Flood Warning | DVN | Lee | 11 hr |
| May 18, 8:41 AM CDT | River Flood Warning | DVN | Keokuk | 7 hr |
| May 27, 9:07 AM CDT | River Flood Warning | DMX | Polk, Story | 7 hr |
| May 27, 9:07 AM CDT | River Flood Warning | DMX | Jasper, Marion, Polk | 7 hr |
| May 27, 9:07 AM CDT | River Flood Warning | DMX | Mahaska, Marion | 4 days |
| May 27, 10:16 AM CDT | River Flood Warning | DMX | Black Hawk | 34 hr |
| May 27, 10:16 AM CDT | River Flood Warning | DMX | Black Hawk, Bremer, Butler | 6 days |
| May 27, 10:16 AM CDT | River Flood Warning | DMX | Black Hawk, Butler | 59 hr |
| May 27, 8:41 PM CDT | River Flood Warning | DVN | Iowa, Johnson | 7 days |
| Jun 1, 9:57 PM CDT | River Flood Warning | DVN | Louisa | 12 hr |
| Jun 1, 9:57 PM CDT | River Flood Warning | DVN | Louisa | 12 hr |
| Jun 1, 10:02 PM CDT | River Flood Warning | DVN | Cedar, Louisa, Muscatine | 22 hr |
| Jun 7, 8:58 PM CDT | River Flood Warning | DMX | Lucas, Wayne | 33 hr |
| Jun 8, 2:46 PM CDT | River Flood Warning | DMX | Mahaska, Marion | 28 hr |
| Jun 13, 8:18 PM CDT | River Flood Warning | DVN | Keokuk | 8 hr |
| Jun 16, 8:55 AM CDT | River Flood Warning | DMX | Mahaska, Marion | 60 min |
| Jun 17, 10:42 AM CDT | River Flood Warning | DVN | Keokuk | 4 days |
| Jun 18, 5:54 AM CDT | River Flood Warning | DMX | Mahaska, Marion | 5 days |
| Jun 18, 9:39 AM CDT | River Flood Warning | DVN | Iowa, Johnson | 9 days |
| Jun 18, 9:39 AM CDT | River Flood Warning | DVN | Johnson, Washington | 17 hr |
| Jun 18, 10:49 AM CDT | River Flood Warning | DMX | Mahaska, Marion | 10 hr |
| Jun 18, 12:35 PM CDT | River Flood Warning | DMX | Wapello | 11 hr |
| Jun 18, 1:34 PM CDT | River Flood Warning | DMX | Wapello | 5 hr |
| Jun 18, 1:59 PM CDT | River Flood Warning | DVN | Des Moines, Henry, Lee | 68 hr |
| Jun 18, 9:17 PM CDT | River Flood Warning | DVN | Lee | 24 hr |
| Jun 19, 6:40 AM CDT | River Flood Warning | DMX | Madison, Warren | 48 hr |
| Jun 20, 4:15 AM CDT | River Flood Warning | DVN | Johnson, Washington | 3 days |
| Jun 21, 3:36 AM CDT | River Flood Warning | DVN | Louisa | 5 days |
| Jun 21, 9:40 AM CDT | River Flood Warning | DVN | Johnson, Louisa, Washington | 48 hr |
| Jun 21, 11:00 PM CDT | River Flood Warning | DVN | Keokuk | 4 days |
| Jun 22, 12:17 AM CDT | River Flood Warning | DVN | Louisa | 34 hr |
| Jun 22, 10:02 AM CDT | River Flood Warning | DVN | Des Moines, Henry, Lee | 5 days |
| Jun 23, 8:07 PM CDT | River Flood Warning | DMX | Mahaska, Marion | 44 hr |
| Jun 23, 11:12 PM CDT | River Flood Warning | DVN | Johnson, Washington | 29 hr |
| Jun 23, 11:38 PM CDT | River Flood Warning | DMX | Madison, Warren | 21 hr |
| Jul 4, 8:52 AM CDT | River Flood Warning | DMX | Decatur | 43 hr |
| Jul 4, 8:52 AM CDT | River Flood Warning | DMX | Appanoose, Wayne | 27 hr |
| Jul 4, 1:10 PM CDT | River Flood Warning | DMX | Lucas, Wayne | 26 hr |
| Jul 6, 4:21 PM CDT | River Flood Warning | DMX | Lucas, Wayne | 40 hr |
| Jul 10, 9:10 PM CDT | River Flood Warning | DVN | Clinton, Scott | 47 hr |
| Aug 17, 2:30 PM CDT | River Flood Warning | DMX | Lucas, Wayne | 13 hr |
| Aug 20, 8:43 AM CDT | River Flood Warning | DVN | Clinton, Scott | 7 hr |
| Aug 26, 9:56 AM CDT | River Flood Warning | DVN | Clinton, Scott | 7 days |
| Aug 26, 9:54 PM CDT | River Flood Warning | DVN | Iowa, Johnson | 5 days |
| Aug 27, 2:30 AM CDT | River Flood Warning | DMX | Lucas, Wayne | 4 days |
| Aug 27, 2:41 AM CDT | River Flood Warning | DMX | Appanoose, Wayne | 35 hr |
| Aug 27, 3:59 AM CDT | River Flood Warning | DVN | Johnson, Washington | 4 days |
| Aug 27, 3:59 AM CDT | River Flood Warning | DVN | Keokuk | 5 days |
| Aug 27, 8:51 AM CDT | River Flood Warning | DMX | Mahaska, Marion | 19 hr |
| Aug 27, 9:09 AM CDT | River Flood Warning | DVN | Des Moines, Henry, Lee | 5 days |
| Aug 27, 9:52 AM CDT | River Flood Warning | DVN | Cedar, Louisa, Muscatine | 4 days |
| Aug 27, 9:52 AM CDT | River Flood Warning | DVN | Johnson, Louisa, Washington | 49 hr |
| Aug 27, 9:52 AM CDT | River Flood Warning | DVN | Louisa | 5 days |
| Aug 27, 9:52 AM CDT | River Flood Warning | DVN | Louisa | 5 days |
| Aug 27, 3:49 PM CDT | River Flood Warning | DVN | Jones, Linn | 37 hr |
| Aug 27, 8:56 PM CDT | River Flood Warning | DVN | Jackson | 43 hr |
| Aug 28, 3:46 AM CDT | River Flood Warning | DVN | Lee | 6 hr |
| Aug 28, 6:38 AM CDT | River Flood Warning | DVN | Cedar, Johnson, Linn | 14 hr |
| Oct 22, 9:43 AM CDT | River Flood Warning | DVN | Iowa, Johnson | 19 days |
| Oct 22, 3:33 PM CDT | River Flood Warning | DVN | Clinton, Scott | 16 days |
| Oct 22, 3:33 PM CDT | River Flood Warning | DVN | Keokuk | 53 hr |
| Oct 22, 5:32 PM CDT | River Flood Warning | DMX | Lucas, Wayne | 34 hr |
| Oct 23, 12:33 AM CDT | River Flood Warning | DMX | Mahaska, Marion | 19 hr |
| Oct 23, 4:38 AM CDT | River Flood Warning | DVN | Johnson, Washington | 48 hr |
| Oct 23, 9:03 AM CDT | River Flood Warning | DMX | Mahaska, Marion | 67 hr |
| Oct 26, 8:35 AM CDT | River Flood Warning | DMX | Humboldt, Kossuth | 59 hr |
| Oct 29, 9:37 AM CDT | River Flood Warning | DVN | Louisa | 10 days |
| Oct 29, 9:50 AM CDT | River Flood Warning | DMX | Mahaska, Marion | 5 days |
| Oct 29, 9:50 AM CDT | River Flood Warning | DMX | Humboldt, Kossuth | 35 hr |
| Oct 29, 3:56 PM CDT | River Flood Warning | DVN | Keokuk | 6 days |
| Oct 29, 7:30 PM CDT | River Flood Warning | DVN | Johnson, Washington | 4 days |
| Oct 29, 7:32 PM CDT | River Flood Warning | DVN | Lee | 40 hr |
| Oct 29, 8:44 PM CDT | River Flood Warning | DVN | Cedar, Louisa, Muscatine | 10 days |
| Oct 29, 8:44 PM CDT | River Flood Warning | DVN | Johnson, Louisa, Washington | 50 hr |
| Oct 29, 8:44 PM CDT | River Flood Warning | DVN | Louisa | 5 days |
| Oct 29, 8:48 PM CDT | River Flood Warning | DMX | Cerro Gordo, Floyd, Worth | 14 hr |
| Oct 29, 8:48 PM CDT | River Flood Warning | DVN | Des Moines, Henry, Lee | 4 days |
| Oct 29, 9:02 PM CDT | River Flood Warning | DMX | Lucas, Wayne | 46 hr |
| Oct 29, 9:02 PM CDT | River Flood Warning | DMX | Appanoose, Wayne | 23 hr |
| Oct 29, 11:56 PM CDT | River Flood Warning | DMX | Mahaska, Marion | 31 hr |
| Oct 30, 1:32 AM CDT | River Flood Warning | DMX | Wapello | 15 hr |
| Oct 31, 4:20 AM CDT | River Flood Warning | DMX | Marshall | 10 hr |
| Oct 31, 8:00 PM CDT | River Flood Warning | DMX | Black Hawk | 64 hr |
| Nov 1, 7:52 AM CST | River Flood Warning | DMX | Black Hawk, Bremer, Butler | 58 hr |
| Nov 2, 10:22 AM CST | River Flood Warning | DVN | Des Moines, Lee | 43 hr |
| Nov 17, 11:15 AM CST | River Flood Warning | DVN | Lee | 17 hr |
| Dec 23, 1:26 PM CST | River Flood Warning | DMX | Lucas, Wayne | 30 hr |
| Dec 24, 7:56 PM CST | River Flood Warning | DVN | Clinton, Scott | 3 days |
| Dec 25, 1:31 AM CST | River Flood Warning | DMX | Lucas, Wayne | 34 hr |
| Dec 25, 6:42 AM CST | River Flood Warning | DMX | Mahaska, Marion | 25 hr |
| Dec 25, 10:10 AM CST | River Flood Warning | DVN | Iowa, Johnson | 24 hr |
| Dec 25, 10:10 AM CST | River Flood Warning | DVN | Johnson, Washington | 42 hr |
| Dec 26, 9:16 AM CST | River Flood Warning | DVN | Des Moines, Henry, Lee | 26 hr |
| Dec 26, 3:06 PM CST | River Flood Warning | DVN | Louisa | 5 hr |
| Dec 27, 3:52 AM CST | River Flood Warning | DVN | Iowa, Johnson | 31 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Louisa County29
- Johnson County27
- Lee County25
- Mahaska County20
- Marion County19
- Wayne County19
- Des Moines County17
- Washington County16
- Polk County14
- Lucas County13
- Wapello County12
- Black Hawk County11
- Iowa County10
- Keokuk County10
- Butler County9
- Warren County9
- Clinton County8
- Scott County8
- Madison County8
- Henry County8
- Appanoose County8
- Cedar County7
- Muscatine County6
- Decatur County5
- Story County4
- Jones County4
- Linn County4
- Jackson County3
- Clay County3
- Dickinson County3
- Marshall County3
- Taylor County3
- Bremer County3
- Cerro Gordo County2
- Floyd County2
- Worth County2
- Sioux County2
- Plymouth County2
- Webster County2
- Clayton County2
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.