Alert archive / Iowa / River Flood Warnings
River Flood Warnings in Iowa, 2011
273 river flood warnings in 2011. 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 2011. Tap one for its archive.
- River Flood Warnings
- 273
- Busiest month
- June90 river flood warnings
- Busiest day
- February 18, 201118 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 16, 3:30 PM CST | River Flood Warning | DVN | Lee, Van Buren | 43 hr |
| Feb 17, 9:02 AM CST | River Flood Warning | DVN | Iowa, Johnson | 7 days |
| Feb 17, 9:02 AM CST | River Flood Warning | DVN | Johnson, Washington | 50 hr |
| Feb 17, 7:01 PM CST | River Flood Warning | DVN | Clinton, Scott | 26 hr |
| Feb 17, 7:01 PM CST | River Flood Warning | DVN | Keokuk | 16 hr |
| Feb 17, 7:36 PM CST | River Flood Warning | DVN | Johnson, Louisa, Washington | 28 hr |
| Feb 17, 10:59 PM CST | River Flood Warning | OAX | Fremont | 11 hr |
| Feb 18, 12:05 AM CST | River Flood Warning | DMX | Mahaska, Marion | 6 hr |
| Feb 18, 1:12 AM CST | River Flood Warning | DVN | Lee | 10 hr |
| Feb 18, 2:02 AM CST | River Flood Warning | FSD | Clay, Dickinson | 33 hr |
| Feb 18, 5:39 AM CST | River Flood Warning | DMX | Emmet | 12 hr |
| Feb 18, 8:58 AM CST | River Flood Warning | FSD | Sioux | 26 hr |
| Feb 18, 8:58 AM CST | River Flood Warning | FSD | Clay, Dickinson | 49 hr |
| Feb 18, 8:58 AM CST | River Flood Warning | FSD | Clay | 6 days |
| Feb 18, 9:54 AM CST | River Flood Warning | DVN | Des Moines, Henry, Lee | 36 hr |
| Feb 18, 1:31 PM CST | River Flood Warning | FSD | Sioux | 45 hr |
| Feb 18, 1:31 PM CST | River Flood Warning | FSD | Plymouth | 4 days |
| Feb 18, 1:31 PM CST | River Flood Warning | FSD | Clay | 4 days |
| Feb 18, 2:22 PM CST | River Flood Warning | DVN | Louisa | 7 days |
| Feb 18, 3:38 PM CST | River Flood Warning | FSD | Cherokee | 19 hr |
| Feb 18, 5:06 PM CST | River Flood Warning | DMX | Black Hawk, Butler | 28 hr |
| Feb 18, 7:54 PM CST | River Flood Warning | DMX | Humboldt, Kossuth | 8 days |
| Feb 18, 10:57 PM CST | River Flood Warning | DVN | Louisa | 60 hr |
| Feb 19, 9:25 AM CST | River Flood Warning | DMX | Webster | 32 hr |
| Feb 19, 4:47 PM CST | River Flood Warning | DVN | Clinton, Scott | 10 days |
| Feb 20, 4:53 AM CST | River Flood Warning | OAX | Monona | 15 hr |
| Feb 20, 9:42 AM CST | River Flood Warning | DVN | Des Moines, Henry, Lee | 56 hr |
| Feb 20, 10:30 AM CST | River Flood Warning | DMX | Mahaska, Wapello | 24 hr |
| Feb 20, 1:18 PM CST | River Flood Warning | DMX | Wapello | 28 hr |
| Feb 20, 4:18 PM CST | River Flood Warning | DVN | Johnson, Washington | 18 hr |
| Feb 20, 5:04 PM CST | River Flood Warning | DMX | Black Hawk, Bremer, Butler | 6 days |
| Feb 20, 8:39 PM CST | River Flood Warning | DMX | Boone, Hamilton, Webster | 71 hr |
| Feb 21, 9:46 AM CST | River Flood Warning | DMX | Webster | 11 days |
| Mar 12, 6:55 PM CST | River Flood Warning | FSD | Clay | 21 hr |
| Mar 12, 6:55 PM CST | River Flood Warning | FSD | Buena Vista, Clay | 62 hr |
| Mar 15, 9:36 PM CDT | River Flood Warning | FSD | Buena Vista, Clay | 13 days |
| Mar 16, 9:53 AM CDT | River Flood Warning | DMX | Emmet | 48 days |
| Mar 16, 11:32 AM CDT | River Flood Warning | FSD | Lyon | 45 days |
| Mar 16, 11:32 AM CDT | River Flood Warning | FSD | Sioux | 54 days |
| Mar 16, 11:32 AM CDT | River Flood Warning | FSD | Plymouth | 53 days |
| Mar 16, 11:32 AM CDT | River Flood Warning | FSD | Lyon | 9 days |
| Mar 16, 11:32 AM CDT | River Flood Warning | FSD | Clay | 12 days |
| Mar 16, 7:51 PM CDT | River Flood Warning | DMX | Humboldt, Kossuth | 7 days |
| Mar 17, 8:07 AM CDT | River Flood Warning | FSD | Clay, Dickinson | 11 days |
| Mar 17, 11:18 AM CDT | River Flood Warning | DMX | Cerro Gordo, Floyd, Worth | 9 hr |
| Mar 18, 3:25 AM CDT | River Flood Warning | FSD | Clay | 11 hr |
| Mar 18, 8:44 PM CDT | River Flood Warning | FSD | Clay, Dickinson | 7 days |
| Mar 20, 8:19 AM CDT | River Flood Warning | FSD | Lyon | 43 hr |
| Mar 20, 11:11 AM CDT | River Flood Warning | DMX | Black Hawk | 8 days |
| Mar 20, 8:53 PM CDT | River Flood Warning | FSD | Lyon | 41 hr |
| Mar 20, 9:04 PM CDT | River Flood Warning | DVN | Clinton, Scott | 13 days |
| Mar 20, 9:20 PM CDT | River Flood Warning | ARX | Allamakee | 3 days |
| Mar 21, 10:29 AM CDT | River Flood Warning | DMX | Black Hawk | 7 days |
| Mar 21, 10:37 AM CDT | River Flood Warning | DMX | Cerro Gordo, Floyd, Worth | 3 days |
| Mar 21, 11:40 AM CDT | River Flood Warning | ARX | Floyd, Mitchell | 4 days |
| Mar 21, 10:04 PM CDT | River Flood Warning | ARX | Clayton | 48 hr |
| Mar 22, 6:30 AM CDT | River Flood Warning | DMX | Black Hawk, Bremer, Butler | 4 days |
| Mar 22, 10:52 AM CDT | River Flood Warning | DMX | Palo Alto | 16 days |
| Mar 22, 10:52 AM CDT | River Flood Warning | DMX | Humboldt | 25 days |
| Mar 22, 12:01 PM CDT | River Flood Warning | ARX | Clayton | 45 days |
| Mar 22, 12:01 PM CDT | River Flood Warning | ARX | Clayton | 38 days |
| Mar 23, 1:59 PM CDT | River Flood Warning | DMX | Black Hawk, Bremer, Butler | 68 hr |
| Mar 23, 2:47 PM CDT | River Flood Warning | DVN | Dubuque, Jackson | 45 days |
| Mar 23, 2:47 PM CDT | River Flood Warning | DVN | Clinton, Scott | 40 days |
| Mar 23, 2:47 PM CDT | River Flood Warning | DVN | Clinton, Scott | 47 days |
| Mar 23, 2:47 PM CDT | River Flood Warning | DVN | Muscatine, Scott | 41 days |
| Mar 23, 2:47 PM CDT | River Flood Warning | DVN | Muscatine, Scott | 49 days |
| Mar 23, 2:47 PM CDT | River Flood Warning | DVN | Des Moines, Louisa | 51 days |
| Mar 23, 2:47 PM CDT | River Flood Warning | DVN | Des Moines, Louisa | 52 days |
| Mar 23, 2:47 PM CDT | River Flood Warning | DVN | Des Moines | 57 days |
| Mar 23, 2:47 PM CDT | River Flood Warning | DVN | Des Moines, Lee | 57 days |
| Mar 23, 8:30 PM CDT | River Flood Warning | DVN | Cedar, Louisa, Muscatine | 9 days |
| Mar 25, 8:45 PM CDT | River Flood Warning | DVN | Louisa | 7 days |
| Mar 28, 1:26 PM CDT | River Flood Warning | DVN | Louisa, Muscatine | 43 days |
| Mar 28, 1:26 PM CDT | River Flood Warning | DVN | Louisa, Muscatine | 44 days |
| Mar 31, 11:47 AM CDT | River Flood Warning | DVN | Dubuque, Jackson | 29 days |
| Apr 7, 11:55 AM CDT | River Flood Warning | DVN | Jackson | 21 days |
| Apr 14, 12:00 PM CDT | River Flood Warning | DVN | Lee | 21 days |
| Apr 15, 10:41 AM CDT | River Flood Warning | FSD | Clay | 34 hr |
| Apr 15, 10:41 AM CDT | River Flood Warning | FSD | Buena Vista, Clay | 11 hr |
| Apr 15, 9:23 PM CDT | River Flood Warning | OAX | Mills | 36 hr |
| Apr 15, 9:23 PM CDT | River Flood Warning | OAX | Fremont | 167 days |
| Apr 18, 10:30 AM CDT | River Flood Warning | FSD | Clay | 6 days |
| Apr 18, 9:22 PM CDT | River Flood Warning | FSD | Buena Vista, Clay | 12 days |
| Apr 19, 10:14 AM CDT | River Flood Warning | DMX | Humboldt | 6 days |
| Apr 20, 10:49 AM CDT | River Flood Warning | DMX | Boone, Hamilton, Webster | 4 days |
| Apr 20, 8:39 PM CDT | River Flood Warning | DMX | Humboldt, Kossuth | 4 days |
| Apr 24, 6:34 AM CDT | River Flood Warning | OAX | Mills | 11 hr |
| Apr 25, 8:57 PM CDT | River Flood Warning | DMX | Humboldt, Kossuth | 5 days |
| Apr 25, 8:57 PM CDT | River Flood Warning | DMX | Boone, Hamilton, Webster | 3 days |
| Apr 26, 9:04 AM CDT | River Flood Warning | DVN | Clinton, Scott | 7 days |
| Apr 26, 10:25 AM CDT | River Flood Warning | DMX | Humboldt | 44 hr |
| Apr 26, 9:32 PM CDT | River Flood Warning | DVN | Iowa, Johnson | 5 days |
| Apr 29, 3:33 AM CDT | River Flood Warning | DMX | Black Hawk | 25 hr |
| Apr 30, 3:31 PM CDT | River Flood Warning | OAX | Mills | 4 days |
| May 2, 4:54 PM CDT | River Flood Warning | DVN | Cedar, Louisa, Muscatine | 18 hr |
| May 8, 9:11 PM CDT | River Flood Warning | FSD | Plymouth | 12 hr |
| May 11, 6:52 PM CDT | River Flood Warning | OAX | Page | 6 hr |
| May 12, 4:18 AM CDT | River Flood Warning | OAX | Page | 3 hr |
| May 12, 8:23 AM CDT | River Flood Warning | DMX | Decatur | 13 hr |
| May 12, 9:44 AM CDT | River Flood Warning | OAX | Mills | 7 days |
| May 20, 9:18 AM CDT | River Flood Warning | FSD | Sioux | 19 days |
| May 20, 9:18 AM CDT | River Flood Warning | FSD | Plymouth | 18 days |
| May 20, 9:18 AM CDT | River Flood Warning | FSD | Clay | 10 days |
| May 20, 9:18 AM CDT | River Flood Warning | FSD | Buena Vista, Clay | 14 days |
| May 20, 10:16 AM CDT | River Flood Warning | OAX | Mills | 130 days |
| May 22, 9:19 AM CDT | River Flood Warning | DMX | Emmet | 17 days |
| May 22, 9:19 AM CDT | River Flood Warning | DMX | Humboldt | 11 days |
| May 22, 9:19 AM CDT | River Flood Warning | DMX | Humboldt, Kossuth | 12 days |
| May 25, 1:05 AM CDT | River Flood Warning | DMX | Decatur | 57 hr |
| May 25, 6:04 AM CDT | River Flood Warning | DMX | Madison, Warren | 27 hr |
| May 25, 6:22 AM CDT | River Flood Warning | DMX | Madison, Warren | 22 hr |
| May 25, 6:22 AM CDT | River Flood Warning | DMX | Warren | 9 hr |
| May 25, 6:37 AM CDT | River Flood Warning | DVN | Iowa, Johnson | 7 days |
| May 25, 6:37 AM CDT | River Flood Warning | DVN | Lee | 52 hr |
| May 25, 6:53 AM CDT | River Flood Warning | DMX | Appanoose, Wayne | 30 hr |
| May 25, 7:25 AM CDT | River Flood Warning | DMX | Lucas, Wayne | 24 hr |
| May 25, 7:58 AM CDT | River Flood Warning | DMX | Wapello | 23 hr |
| May 25, 9:27 AM CDT | River Flood Warning | DVN | Clinton, Scott | 12 hr |
| May 25, 9:27 AM CDT | River Flood Warning | DVN | Keokuk | 12 hr |
| May 25, 9:27 AM CDT | River Flood Warning | DVN | Des Moines, Henry, Lee | 6 days |
| May 25, 11:46 AM CDT | River Flood Warning | DVN | Des Moines | 13 days |
| May 25, 11:46 AM CDT | River Flood Warning | DVN | Des Moines, Lee | 14 days |
| May 25, 11:46 AM CDT | River Flood Warning | DVN | Johnson, Washington | 34 hr |
| May 25, 3:04 PM CDT | River Flood Warning | DMX | Boone, Hamilton, Webster | 7 days |
| May 25, 3:18 PM CDT | River Flood Warning | DMX | Mahaska, Marion | 18 hr |
| May 25, 3:41 PM CDT | River Flood Warning | DVN | Lee, Van Buren | 20 hr |
| May 26, 10:52 AM CDT | River Flood Warning | DVN | Lee | 24 hr |
| May 27, 7:24 PM CDT | River Flood Warning | DVN | Des Moines, Louisa | 16 hr |
| May 28, 7:22 PM CDT | River Flood Warning | OAX | Pottawattamie | 108 days |
| May 28, 8:21 PM CDT | River Flood Warning | OAX | Harrison | 109 days |
| May 29, 10:05 AM CDT | River Flood Warning | DMX | Madison, Warren | 23 hr |
| May 29, 10:05 AM CDT | River Flood Warning | DMX | Warren | 8 hr |
| May 29, 10:06 AM CDT | River Flood Warning | OAX | Monona | 95 days |
| May 29, 2:11 PM CDT | River Flood Warning | DMX | Wapello | 21 hr |
| May 29, 2:38 PM CDT | River Flood Warning | DVN | Johnson, Washington | 31 hr |
| May 29, 3:06 PM CDT | River Flood Warning | DVN | Lee | 38 hr |
| May 29, 5:06 PM CDT | River Flood Warning | DMX | Mahaska, Wapello | 11 hr |
| May 29, 9:14 PM CDT | River Flood Warning | DVN | Louisa | 48 hr |
| May 29, 9:14 PM CDT | River Flood Warning | DVN | Keokuk | 25 hr |
| May 29, 10:00 PM CDT | River Flood Warning | DVN | Des Moines, Louisa | 6 days |
| May 30, 10:57 AM CDT | River Flood Warning | DVN | Louisa | 23 hr |
| May 30, 11:14 AM CDT | River Flood Warning | DVN | Des Moines, Louisa | 47 hr |
| May 31, 10:10 AM CDT | River Flood Warning | FSD | Woodbury | 86 days |
| Jun 2, 2:08 PM CDT | River Flood Warning | DVN | Lee | 20 hr |
| Jun 2, 3:45 PM CDT | River Flood Warning | DVN | Des Moines, Henry, Lee | 52 hr |
| Jun 2, 10:52 PM CDT | River Flood Warning | DVN | Lee | 31 hr |
| Jun 9, 9:16 AM CDT | River Flood Warning | DMX | Madison, Warren | 8 days |
| Jun 9, 2:01 PM CDT | River Flood Warning | DMX | Mahaska, Wapello | 65 hr |
| Jun 9, 2:01 PM CDT | River Flood Warning | DMX | Wapello | 3 days |
| Jun 9, 2:01 PM CDT | River Flood Warning | DMX | Madison, Warren | 52 hr |
| Jun 9, 2:01 PM CDT | River Flood Warning | DMX | Mahaska, Marion | 63 hr |
| Jun 9, 4:06 PM CDT | River Flood Warning | FSD | Woodbury | 62 days |
| Jun 10, 12:07 AM CDT | River Flood Warning | DMX | Polk | 6 hr |
| Jun 10, 6:21 AM CDT | River Flood Warning | DVN | Keokuk | 8 days |
| Jun 10, 6:53 AM CDT | River Flood Warning | DVN | Johnson, Washington | 59 hr |
| Jun 10, 7:20 AM CDT | River Flood Warning | DMX | Polk | 20 hr |
| Jun 10, 7:20 AM CDT | River Flood Warning | DMX | Polk | 20 hr |
| Jun 10, 9:04 AM CDT | River Flood Warning | DVN | Iowa, Johnson | 5 days |
| Jun 10, 10:40 AM CDT | River Flood Warning | DVN | Des Moines | 9 days |
| Jun 10, 10:40 AM CDT | River Flood Warning | DVN | Des Moines, Lee | 9 days |
| Jun 10, 10:40 AM CDT | River Flood Warning | DVN | Johnson, Louisa, Washington | 24 hr |
| Jun 10, 9:35 PM CDT | River Flood Warning | DVN | Lee | 23 hr |
| Jun 11, 5:24 AM CDT | River Flood Warning | DVN | Louisa | 28 hr |
| Jun 11, 9:59 AM CDT | River Flood Warning | FSD | Buena Vista, Clay | 3 days |
| Jun 13, 7:16 PM CDT | River Flood Warning | DMX | Wapello | 54 hr |
| Jun 13, 8:37 PM CDT | River Flood Warning | DVN | Des Moines, Henry, Lee | 9 days |
| Jun 13, 11:48 PM CDT | River Flood Warning | DVN | Lee | 70 hr |
| Jun 14, 2:59 AM CDT | River Flood Warning | DMX | Mahaska, Marion | 53 hr |
| Jun 14, 5:54 AM CDT | River Flood Warning | DVN | Lee, Van Buren | 48 hr |
| Jun 14, 6:32 AM CDT | River Flood Warning | DMX | Mahaska, Wapello | 34 hr |
| Jun 14, 8:21 AM CDT | River Flood Warning | DVN | Lee | 3 days |
| Jun 14, 10:02 AM CDT | River Flood Warning | DMX | Polk | 13 hr |
| Jun 14, 10:02 AM CDT | River Flood Warning | DMX | Polk | 13 hr |
| Jun 14, 7:58 PM CDT | River Flood Warning | FSD | Sioux | 17 days |
| Jun 14, 7:58 PM CDT | River Flood Warning | FSD | Plymouth | 18 days |
| Jun 14, 7:58 PM CDT | River Flood Warning | FSD | Clay | 4 days |
| Jun 14, 7:58 PM CDT | River Flood Warning | FSD | Clay | 21 days |
| Jun 14, 10:10 PM CDT | River Flood Warning | DMX | Emmet | 45 days |
| Jun 15, 2:38 AM CDT | River Flood Warning | DVN | Johnson, Washington | 55 hr |
| Jun 15, 6:45 AM CDT | River Flood Warning | DVN | Johnson, Louisa, Washington | 14 hr |
| Jun 15, 6:45 AM CDT | River Flood Warning | DVN | Louisa | 54 hr |
| Jun 15, 9:21 AM CDT | River Flood Warning | FSD | Buena Vista, Clay | 19 days |
| Jun 15, 9:21 AM CDT | River Flood Warning | FSD | Clay, Dickinson, Lyon | 15 days |
| Jun 15, 9:43 AM CDT | River Flood Warning | DVN | Louisa | 20 hr |
| Jun 16, 3:56 AM CDT | River Flood Warning | DMX | Humboldt, Kossuth | 16 days |
| Jun 16, 10:19 PM CDT | River Flood Warning | DMX | Humboldt | 20 days |
| Jun 20, 4:26 AM CDT | River Flood Warning | DMX | Lucas, Wayne | 3 hr |
| Jun 20, 7:09 AM CDT | River Flood Warning | DMX | Polk | 118 min |
| Jun 20, 9:01 AM CDT | River Flood Warning | DMX | Madison, Warren | 3 days |
| Jun 20, 9:26 AM CDT | River Flood Warning | DVN | Lee | 43 hr |
| Jun 20, 9:46 AM CDT | River Flood Warning | DMX | Polk | 47 hr |
| Jun 20, 9:46 AM CDT | River Flood Warning | DMX | Wapello | 21 hr |
| Jun 20, 10:43 AM CDT | River Flood Warning | DMX | Polk | 47 hr |
| Jun 20, 10:43 AM CDT | River Flood Warning | DMX | Polk | 47 hr |
| Jun 20, 1:42 PM CDT | River Flood Warning | DMX | Mahaska, Wapello | 14 hr |
| Jun 20, 1:47 PM CDT | River Flood Warning | DVN | Lee, Van Buren | 21 hr |
| Jun 20, 2:55 PM CDT | River Flood Warning | DVN | Johnson, Washington | 30 hr |
| Jun 20, 3:00 PM CDT | River Flood Warning | DVN | Keokuk | 30 hr |
| Jun 20, 8:32 PM CDT | River Flood Warning | DMX | Mahaska, Marion | 7 hr |
| Jun 20, 8:32 PM CDT | River Flood Warning | DMX | Lucas, Wayne | 11 hr |
| Jun 20, 9:45 PM CDT | River Flood Warning | DVN | Des Moines, Lee | 13 hr |
| Jun 21, 12:55 AM CDT | River Flood Warning | FSD | Clay, Dickinson | 9 days |
| Jun 21, 12:55 AM CDT | River Flood Warning | FSD | Cherokee | 11 days |
| Jun 21, 12:55 AM CDT | River Flood Warning | FSD | Lyon | 5 days |
| Jun 21, 12:55 AM CDT | River Flood Warning | FSD | Clay | 6 days |
| Jun 21, 6:34 AM CDT | River Flood Warning | FSD | Lyon | 14 hr |
| Jun 21, 6:34 AM CDT | River Flood Warning | FSD | O'Brien | 30 hr |
| Jun 21, 6:34 AM CDT | River Flood Warning | FSD | Sioux | 30 hr |
| Jun 21, 10:22 AM CDT | River Flood Warning | OAX | Fremont | 29 hr |
| Jun 21, 11:15 AM CDT | River Flood Warning | DMX | Palo Alto | 7 days |
| Jun 21, 11:15 AM CDT | River Flood Warning | DMX | Boone, Hamilton, Webster | 11 days |
| Jun 22, 8:35 PM CDT | River Flood Warning | DVN | Iowa, Johnson | 38 hr |
| Jun 25, 11:30 AM CDT | River Flood Warning | DMX | Decatur | 21 hr |
| Jun 25, 11:30 AM CDT | River Flood Warning | DMX | Appanoose, Wayne | 29 hr |
| Jun 26, 6:36 PM CDT | River Flood Warning | DMX | Lucas, Wayne | 34 hr |
| Jun 26, 9:03 PM CDT | River Flood Warning | DMX | Mahaska, Wapello | 4 days |
| Jun 26, 9:03 PM CDT | River Flood Warning | DMX | Wapello | 34 days |
| Jun 26, 9:03 PM CDT | River Flood Warning | DMX | Madison, Warren | 14 hr |
| Jun 26, 9:03 PM CDT | River Flood Warning | DMX | Mahaska, Marion | 37 hr |
| Jun 26, 9:03 PM CDT | River Flood Warning | DMX | Decatur | 47 hr |
| Jun 26, 10:16 PM CDT | River Flood Warning | DVN | Des Moines, Henry, Lee | 36 hr |
| Jun 26, 10:16 PM CDT | River Flood Warning | DVN | Lee, Van Buren | 36 hr |
| Jun 26, 10:16 PM CDT | River Flood Warning | DVN | Lee | 4 days |
| Jun 27, 12:30 AM CDT | River Flood Warning | OAX | Page | 14 hr |
| Jun 27, 12:47 AM CDT | River Flood Warning | DMX | Appanoose | 19 hr |
| Jun 27, 1:25 AM CDT | River Flood Warning | OAX | Fremont | 38 hr |
| Jun 27, 1:25 AM CDT | River Flood Warning | OAX | Fremont | 5 hr |
| Jun 27, 1:26 AM CDT | River Flood Warning | DMX | Taylor | 7 hr |
| Jun 27, 1:50 AM CDT | River Flood Warning | DMX | Appanoose, Wayne | 14 hr |
| Jun 27, 3:29 AM CDT | River Flood Warning | DMX | Webster | 52 hr |
| Jun 27, 10:45 AM CDT | River Flood Warning | DMX | Madison, Warren | 9 hr |
| Jun 27, 3:16 PM CDT | River Flood Warning | FSD | Woodbury | 42 hr |
| Jun 28, 1:51 AM CDT | River Flood Warning | OAX | Monona | 18 hr |
| Jul 7, 7:57 PM CDT | River Flood Warning | DMX | Humboldt, Kossuth | 25 hr |
| Jul 10, 9:55 AM CDT | River Flood Warning | FSD | Lyon | 25 hr |
| Jul 10, 9:55 AM CDT | River Flood Warning | FSD | Sioux | 14 days |
| Jul 10, 9:55 AM CDT | River Flood Warning | FSD | Plymouth | 13 days |
| Jul 11, 11:22 AM CDT | River Flood Warning | FSD | Buena Vista, Clay | 18 days |
| Jul 11, 4:13 PM CDT | River Flood Warning | FSD | Clay, Dickinson | 16 days |
| Jul 11, 4:13 PM CDT | River Flood Warning | FSD | Clay | 18 days |
| Jul 12, 3:52 PM CDT | River Flood Warning | FSD | Clay, Dickinson | 14 days |
| Jul 12, 8:18 PM CDT | River Flood Warning | FSD | Clay | 18 hr |
| Jul 13, 10:47 AM CDT | River Flood Warning | DMX | Humboldt | 11 days |
| Jul 14, 8:16 AM CDT | River Flood Warning | FSD | Lyon | 4 hr |
| Jul 14, 8:16 AM CDT | River Flood Warning | FSD | Lyon | 4 days |
| Jul 14, 8:16 AM CDT | River Flood Warning | FSD | Clay | 6 days |
| Jul 14, 11:06 AM CDT | River Flood Warning | FSD | Cherokee | 11 days |
| Jul 14, 3:50 PM CDT | River Flood Warning | DMX | Palo Alto | 7 days |
| Jul 15, 8:26 AM CDT | River Flood Warning | DMX | Mahaska, Wapello | 55 hr |
| Jul 15, 9:00 AM CDT | River Flood Warning | FSD | Woodbury | 8 days |
| Jul 15, 9:46 AM CDT | River Flood Warning | DMX | Humboldt, Kossuth | 57 hr |
| Jul 15, 9:15 PM CDT | River Flood Warning | DMX | Black Hawk | 6 days |
| Jul 15, 9:15 PM CDT | River Flood Warning | DMX | Black Hawk | 5 days |
| Jul 15, 9:15 PM CDT | River Flood Warning | DMX | Black Hawk, Bremer, Butler | 5 days |
| Jul 15, 9:17 PM CDT | River Flood Warning | ARX | Floyd, Mitchell | 47 hr |
| Jul 21, 10:22 AM CDT | River Flood Warning | DMX | Mahaska, Wapello | 8 days |
| Jul 27, 9:39 AM CDT | River Flood Warning | FSD | Sioux | 3 days |
| Jul 27, 9:39 AM CDT | River Flood Warning | FSD | Plymouth | 4 days |
| Jul 28, 7:58 AM CDT | River Flood Warning | ARX | Clayton | 13 hr |
| Jul 28, 10:15 AM CDT | River Flood Warning | DVN | Dubuque, Jackson | 6 hr |
| Jul 28, 10:15 AM CDT | River Flood Warning | DVN | Jackson | 6 hr |
| Jul 28, 9:50 PM CDT | River Flood Warning | DVN | Clinton, Scott | 37 hr |
| Jul 28, 9:50 PM CDT | River Flood Warning | DVN | Clinton, Scott | 47 hr |
| Jul 29, 8:48 AM CDT | River Flood Warning | DVN | Jackson | 23 hr |
| Jul 29, 11:09 AM CDT | River Flood Warning | DVN | Muscatine, Scott | 23 hr |
| Jul 29, 11:09 AM CDT | River Flood Warning | DVN | Muscatine, Scott | 47 hr |
| Jul 30, 4:17 AM CDT | River Flood Warning | DVN | Louisa, Muscatine | 16 hr |
| Jul 30, 4:17 AM CDT | River Flood Warning | DVN | Louisa, Muscatine | 30 hr |
| Jul 30, 8:31 PM CDT | River Flood Warning | DVN | Des Moines, Louisa | 24 hr |
| Jul 30, 8:31 PM CDT | River Flood Warning | DVN | Des Moines, Louisa | 33 hr |
| Jul 30, 8:31 PM CDT | River Flood Warning | DVN | Des Moines | 56 hr |
| Jul 31, 9:45 AM CDT | River Flood Warning | DVN | Des Moines, Lee | 35 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Clay County30
- Lee County28
- Louisa County24
- Des Moines County22
- Johnson County15
- Wapello County15
- Mahaska County14
- Humboldt County14
- Scott County13
- Washington County10
- Black Hawk County10
- Lyon County10
- Muscatine County10
- Warren County10
- Clinton County9
- Polk County9
- Dickinson County8
- Sioux County8
- Kossuth County8
- Webster County8
- Buena Vista County8
- Madison County8
- Plymouth County7
- Wayne County7
- Marion County6
- Henry County6
- Jackson County6
- Van Buren County5
- Iowa County5
- Keokuk County5
- Fremont County5
- Butler County5
- Boone County5
- Hamilton County5
- Mills County5
- Emmet County4
- Bremer County4
- Floyd County4
- Clayton County4
- Decatur County4
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordThe radar archive20102012
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.