Alert archive / Iowa / River Flood Warnings
River Flood Warnings in Iowa, 2019
388 river flood warnings in 2019. 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 2019. Tap one for its archive.
- River Flood Warnings
- 388
- Busiest month
- March136 river flood warnings
- Busiest day
- March 13, 201943 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 3, 7:55 PM CST | River Flood Warning | DVN | Iowa | 6 days |
| Feb 4, 6:38 AM CST | River Flood Warning | DVN | Johnson, Washington | 22 hr |
| Feb 4, 9:55 AM CST | River Flood Warning | DVN | Clinton, Scott | 5 days |
| Feb 4, 10:04 AM CST | River Flood Warning | DVN | Keokuk | 60 hr |
| Feb 4, 2:59 PM CST | River Flood Warning | DVN | Lee | 6 days |
| Feb 4, 7:09 PM CST | River Flood Warning | DVN | Des Moines, Henry, Lee | 5 days |
| Feb 4, 9:42 PM CST | River Flood Warning | DVN | Jackson | 36 hr |
| Feb 5, 1:44 AM CST | River Flood Warning | DVN | Johnson, Louisa, Washington | 8 days |
| Feb 5, 10:25 AM CST | River Flood Warning | DVN | Cedar, Louisa, Muscatine | 4 days |
| Feb 5, 8:37 PM CST | River Flood Warning | DVN | Louisa | 71 hr |
| Feb 7, 10:12 AM CST | River Flood Warning | DVN | Louisa | 3 days |
| Feb 7, 11:12 AM CST | River Flood Warning | DVN | Des Moines, Louisa | 3 days |
| Feb 23, 9:53 AM CST | River Flood Warning | DVN | Clinton, Scott | 3 days |
| Feb 23, 9:53 AM CST | River Flood Warning | DVN | Johnson, Washington | 3 days |
| Feb 23, 9:53 AM CST | River Flood Warning | DVN | Des Moines, Henry, Lee | 5 days |
| Feb 23, 7:28 PM CST | River Flood Warning | DVN | Johnson, Louisa, Washington | 3 days |
| Feb 24, 9:57 AM CST | River Flood Warning | DVN | Cedar, Louisa, Muscatine | 45 hr |
| Feb 24, 3:45 PM CST | River Flood Warning | DVN | Keokuk | 31 hr |
| Feb 24, 7:48 PM CST | River Flood Warning | DVN | Louisa | 60 hr |
| Feb 26, 11:20 AM CST | River Flood Warning | DVN | Des Moines, Lee | 4 days |
| Mar 9, 8:48 PM CST | River Flood Warning | DVN | Des Moines, Henry, Lee | 6 days |
| Mar 10, 3:29 PM CDT | River Flood Warning | DVN | Keokuk | 9 days |
| Mar 10, 4:02 PM CDT | River Flood Warning | DVN | Louisa | 35 days |
| Mar 11, 5:25 AM CDT | River Flood Warning | DVN | Johnson, Louisa, Washington | 6 days |
| Mar 11, 10:20 AM CDT | River Flood Warning | DVN | Clinton, Scott | 18 days |
| Mar 11, 10:41 AM CDT | River Flood Warning | DVN | Benton, Iowa | 21 days |
| Mar 11, 10:41 AM CDT | River Flood Warning | DVN | Louisa | 21 days |
| Mar 11, 10:41 AM CDT | River Flood Warning | DVN | Johnson, Washington | 7 days |
| Mar 12, 6:55 AM CDT | River Flood Warning | DMX | Madison, Warren | 46 hr |
| Mar 12, 9:43 AM CDT | River Flood Warning | DVN | Delaware, Jones | 3 days |
| Mar 12, 9:43 AM CDT | River Flood Warning | DVN | Jackson | 5 days |
| Mar 12, 9:43 AM CDT | River Flood Warning | DVN | Cedar, Jones, Linn | 21 days |
| Mar 12, 10:18 AM CDT | River Flood Warning | DVN | Lee | 68 hr |
| Mar 12, 10:39 AM CDT | River Flood Warning | DMX | Davis, Wapello | 5 days |
| Mar 12, 10:45 AM CDT | River Flood Warning | DVN | Linn | 21 days |
| Mar 12, 10:45 AM CDT | River Flood Warning | DVN | Benton, Linn | 9 days |
| Mar 12, 10:45 AM CDT | River Flood Warning | DVN | Cedar, Johnson, Linn | 21 days |
| Mar 12, 10:45 AM CDT | River Flood Warning | DVN | Cedar, Johnson | 21 days |
| Mar 12, 10:45 AM CDT | River Flood Warning | DVN | Cedar, Louisa, Muscatine | 20 days |
| Mar 12, 10:46 AM CDT | River Flood Warning | OAX | Mills | 143 days |
| Mar 12, 10:46 AM CDT | River Flood Warning | OAX | Fremont | 272 days |
| Mar 12, 10:58 AM CDT | River Flood Warning | OAX | Page | 61 hr |
| Mar 12, 10:58 AM CDT | River Flood Warning | OAX | Pottawattamie | 67 hr |
| Mar 12, 10:58 AM CDT | River Flood Warning | OAX | Fremont | 4 days |
| Mar 12, 10:58 AM CDT | River Flood Warning | OAX | Montgomery | 4 days |
| Mar 12, 10:58 AM CDT | River Flood Warning | OAX | Fremont | 21 days |
| Mar 12, 11:24 AM CDT | River Flood Warning | DVN | Clinton | 63 days |
| Mar 12, 11:24 AM CDT | River Flood Warning | DVN | Clinton, Scott | 96 days |
| Mar 12, 11:24 AM CDT | River Flood Warning | DVN | Scott | 64 days |
| Mar 12, 11:24 AM CDT | River Flood Warning | DVN | Muscatine, Scott | 99 days |
| Mar 12, 11:24 AM CDT | River Flood Warning | DVN | Muscatine | 99 days |
| Mar 12, 11:24 AM CDT | River Flood Warning | DVN | Louisa, Muscatine | 101 days |
| Mar 12, 11:24 AM CDT | River Flood Warning | DVN | Louisa | 105 days |
| Mar 12, 11:24 AM CDT | River Flood Warning | DVN | Des Moines, Louisa | 107 days |
| Mar 12, 11:24 AM CDT | River Flood Warning | DVN | Des Moines | 109 days |
| Mar 12, 11:24 AM CDT | River Flood Warning | DVN | Des Moines, Lee | 109 days |
| Mar 12, 11:24 AM CDT | River Flood Warning | DVN | Lee | 103 days |
| Mar 12, 11:25 AM CDT | River Flood Warning | OAX | Monona | 5 days |
| Mar 12, 11:46 AM CDT | River Flood Warning | ARX | Winneshiek | 4 days |
| Mar 12, 11:46 AM CDT | River Flood Warning | ARX | Clayton | 6 days |
| Mar 12, 11:46 AM CDT | River Flood Warning | ARX | Clayton | 5 days |
| Mar 12, 11:54 AM CDT | River Flood Warning | ARX | Allamakee | 4 days |
| Mar 13, 8:14 AM CDT | River Flood Warning | FSD | Ida | 21 days |
| Mar 13, 8:44 AM CDT | River Flood Warning | FSD | Woodbury | 21 days |
| Mar 13, 9:06 AM CDT | River Flood Warning | FSD | O'Brien | 21 days |
| Mar 13, 10:36 AM CDT | River Flood Warning | DVN | Louisa | 10 days |
| Mar 13, 11:04 AM CDT | River Flood Warning | FSD | Sioux | 5 days |
| Mar 13, 11:04 AM CDT | River Flood Warning | FSD | Plymouth, Sioux | 58 hr |
| Mar 13, 11:04 AM CDT | River Flood Warning | FSD | Plymouth | 4 days |
| Mar 13, 11:04 AM CDT | River Flood Warning | FSD | Plymouth | 4 days |
| Mar 13, 11:04 AM CDT | River Flood Warning | FSD | Plymouth, Woodbury | 3 days |
| Mar 13, 11:04 AM CDT | River Flood Warning | FSD | Clay | 11 days |
| Mar 13, 11:04 AM CDT | River Flood Warning | FSD | Clay, Dickinson | 18 days |
| Mar 13, 11:04 AM CDT | River Flood Warning | FSD | Clay | 21 days |
| Mar 13, 11:04 AM CDT | River Flood Warning | FSD | Buena Vista, Clay | 21 days |
| Mar 13, 11:04 AM CDT | River Flood Warning | FSD | Cherokee | 21 days |
| Mar 13, 11:04 AM CDT | River Flood Warning | FSD | Woodbury | 21 days |
| Mar 13, 11:04 AM CDT | River Flood Warning | FSD | Monona, Woodbury | 3 days |
| Mar 13, 11:04 AM CDT | River Flood Warning | FSD | Lyon | 14 days |
| Mar 13, 11:04 AM CDT | River Flood Warning | FSD | Lyon, Sioux | 8 days |
| Mar 13, 11:04 AM CDT | River Flood Warning | FSD | Lyon | 4 days |
| Mar 13, 11:04 AM CDT | River Flood Warning | FSD | Plymouth, Sioux | 90 days |
| Mar 13, 11:04 AM CDT | River Flood Warning | FSD | Plymouth | 94 days |
| Mar 13, 11:04 AM CDT | River Flood Warning | FSD | O'Brien | 63 hr |
| Mar 13, 11:09 AM CDT | River Flood Warning | OAX | Monona | 69 hr |
| Mar 13, 11:15 AM CDT | River Flood Warning | DVN | Dubuque, Jackson | 93 days |
| Mar 13, 12:04 PM CDT | River Flood Warning | DMX | Black Hawk | 5 days |
| Mar 13, 12:04 PM CDT | River Flood Warning | DMX | Polk, Story | 68 hr |
| Mar 13, 12:04 PM CDT | River Flood Warning | DMX | Polk | 15 days |
| Mar 13, 12:04 PM CDT | River Flood Warning | DMX | Dallas, Polk | 6 days |
| Mar 13, 12:04 PM CDT | River Flood Warning | DMX | Polk | 11 days |
| Mar 13, 12:04 PM CDT | River Flood Warning | DMX | Dallas, Greene | 11 days |
| Mar 13, 12:04 PM CDT | River Flood Warning | DMX | Madison, Warren | 4 days |
| Mar 13, 12:22 PM CDT | River Flood Warning | FSD | Sioux | 21 days |
| Mar 13, 1:24 PM CDT | River Flood Warning | OAX | Harrison | 33 hr |
| Mar 13, 1:30 PM CDT | River Flood Warning | FSD | Plymouth | 21 days |
| Mar 13, 2:58 PM CDT | River Flood Warning | OAX | Harrison | 10 days |
| Mar 13, 2:58 PM CDT | River Flood Warning | OAX | Pottawattamie | 10 days |
| Mar 13, 4:54 PM CDT | River Flood Warning | DMX | Webster | 21 days |
| Mar 13, 4:56 PM CDT | River Flood Warning | DMX | Dallas, Guthrie | 30 hr |
| Mar 13, 5:12 PM CDT | River Flood Warning | FSD | O'Brien | 21 days |
| Mar 13, 5:12 PM CDT | River Flood Warning | FSD | Woodbury | 27 hr |
| Mar 13, 5:15 PM CDT | River Flood Warning | DMX | Emmet | 91 days |
| Mar 13, 5:24 PM CDT | River Flood Warning | DMX | Polk | 5 hr |
| Mar 13, 5:30 PM CDT | River Flood Warning | DMX | Greene | 3 days |
| Mar 13, 7:28 PM CDT | River Flood Warning | FSD | Lyon | 92 days |
| Mar 13, 7:39 PM CDT | River Flood Warning | DMX | Tama | 7 days |
| Mar 13, 7:57 PM CDT | River Flood Warning | FSD | Sioux | 67 days |
| Mar 13, 7:57 PM CDT | River Flood Warning | FSD | Clay | 21 days |
| Mar 13, 9:11 PM CDT | River Flood Warning | FSD | Dickinson | 21 days |
| Mar 13, 9:11 PM CDT | River Flood Warning | FSD | Dickinson | 21 days |
| Mar 13, 10:25 PM CDT | River Flood Warning | DMX | Boone, Hamilton, Webster | 10 days |
| Mar 13, 10:32 PM CDT | River Flood Warning | FSD | Woodbury | 8 days |
| Mar 13, 10:32 PM CDT | River Flood Warning | FSD | Clay, O'Brien | 21 days |
| Mar 14, 12:56 AM CDT | River Flood Warning | DMX | Polk | 8 hr |
| Mar 14, 3:20 AM CDT | River Flood Warning | DMX | Story | 30 hr |
| Mar 14, 5:01 AM CDT | River Flood Warning | DMX | Palo Alto, Pocahontas | 24 days |
| Mar 14, 5:01 AM CDT | River Flood Warning | DMX | Humboldt | 53 days |
| Mar 14, 6:14 AM CDT | River Flood Warning | FSD | Plymouth | 93 days |
| Mar 14, 7:39 AM CDT | River Flood Warning | DMX | Story | 36 hr |
| Mar 14, 9:57 AM CDT | River Flood Warning | DVN | Buchanan, Linn | 69 hr |
| Mar 14, 11:29 AM CDT | River Flood Warning | ARX | Floyd | 5 days |
| Mar 14, 11:50 AM CDT | River Flood Warning | DMX | Marshall | 57 hr |
| Mar 14, 11:50 AM CDT | River Flood Warning | DMX | Black Hawk | 13 days |
| Mar 14, 11:50 AM CDT | River Flood Warning | DMX | Black Hawk | 10 days |
| Mar 14, 11:50 AM CDT | River Flood Warning | DMX | Polk | 5 days |
| Mar 14, 5:45 PM CDT | River Flood Warning | DMX | Polk | 11 hr |
| Mar 14, 6:24 PM CDT | River Flood Warning | DMX | Black Hawk, Butler | 27 hr |
| Mar 14, 8:11 PM CDT | River Flood Warning | DMX | Jasper, Marion, Polk | 57 hr |
| Mar 14, 9:04 PM CDT | River Flood Warning | OAX | Monona | 5 days |
| Mar 14, 9:10 PM CDT | River Flood Warning | DMX | Cerro Gordo, Floyd, Worth | 7 hr |
| Mar 14, 9:10 PM CDT | River Flood Warning | DMX | Black Hawk, Bremer, Butler | 3 days |
| Mar 14, 9:52 PM CDT | River Flood Warning | FSD | Woodbury | 68 hr |
| Mar 15, 3:50 AM CDT | River Flood Warning | DMX | Wright | 68 hr |
| Mar 15, 12:44 PM CDT | River Flood Warning | DMX | Webster | 18 days |
| Mar 15, 9:46 PM CDT | River Flood Warning | FSD | Lyon, Sioux | 82 days |
| Mar 15, 9:46 PM CDT | River Flood Warning | FSD | Clay | 21 days |
| Mar 15, 9:51 PM CDT | River Flood Warning | DMX | Polk | 45 hr |
| Mar 16, 9:21 PM CDT | River Flood Warning | DMX | Humboldt, Kossuth | 8 days |
| Mar 17, 3:59 AM CDT | River Flood Warning | ARX | Allamakee, Clayton | 87 days |
| Mar 17, 5:54 AM CDT | River Flood Warning | DVN | Lee | 33 hr |
| Mar 17, 8:54 AM CDT | River Flood Warning | DVN | Des Moines, Henry, Lee | 5 days |
| Mar 17, 2:25 PM CDT | River Flood Warning | DVN | Buchanan, Linn | 51 hr |
| Mar 17, 6:29 PM CDT | River Flood Warning | FSD | Clay, O'Brien | 21 days |
| Mar 18, 2:27 PM CDT | River Flood Warning | FSD | Lyon | 50 days |
| Mar 18, 2:27 PM CDT | River Flood Warning | FSD | Lyon | 21 days |
| Mar 18, 2:27 PM CDT | River Flood Warning | FSD | O'Brien | 55 hr |
| Mar 18, 9:42 PM CDT | River Flood Warning | FSD | O'Brien | 21 days |
| Mar 18, 9:42 PM CDT | River Flood Warning | FSD | Clay, O'Brien | 21 days |
| Mar 19, 11:09 AM CDT | River Flood Warning | ARX | Clayton | 53 days |
| Mar 19, 8:25 PM CDT | River Flood Warning | DMX | Cerro Gordo, Floyd, Worth | 32 hr |
| Mar 19, 8:51 PM CDT | River Flood Warning | DMX | Humboldt | 35 hr |
| Mar 20, 10:38 AM CDT | River Flood Warning | DVN | Dubuque | 53 days |
| Mar 22, 11:12 AM CDT | River Flood Warning | DVN | Jackson | 49 days |
| Mar 27, 8:46 PM CDT | River Flood Warning | ARX | Allamakee | 21 days |
| Mar 30, 1:02 AM CDT | River Flood Warning | DVN | Lee | 38 hr |
| Apr 6, 9:35 AM CDT | River Flood Warning | FSD | Lyon | 14 days |
| Apr 6, 9:35 AM CDT | River Flood Warning | FSD | Clay | 69 hr |
| Apr 6, 9:35 AM CDT | River Flood Warning | FSD | Clay, Dickinson | 18 days |
| Apr 6, 9:35 AM CDT | River Flood Warning | FSD | Clay | 40 days |
| Apr 6, 9:35 AM CDT | River Flood Warning | FSD | Buena Vista, Clay | 17 days |
| Apr 9, 10:41 AM CDT | River Flood Warning | FSD | Clay | 21 days |
| Apr 9, 10:41 AM CDT | River Flood Warning | FSD | Cherokee | 21 days |
| Apr 9, 10:41 AM CDT | River Flood Warning | FSD | Monona, Woodbury | 5 days |
| Apr 9, 10:41 AM CDT | River Flood Warning | FSD | Lyon | 9 days |
| Apr 9, 10:41 AM CDT | River Flood Warning | FSD | Lyon, Sioux | 10 days |
| Apr 9, 10:41 AM CDT | River Flood Warning | FSD | Sioux | 5 days |
| Apr 9, 10:41 AM CDT | River Flood Warning | FSD | Plymouth | 4 days |
| Apr 10, 9:54 AM CDT | River Flood Warning | DMX | Palo Alto, Pocahontas | 5 days |
| Apr 18, 12:19 PM CDT | River Flood Warning | ARX | Allamakee | 21 days |
| Apr 22, 9:46 AM CDT | River Flood Warning | DMX | Palo Alto, Pocahontas | 60 hr |
| Apr 26, 8:45 AM CDT | River Flood Warning | FSD | Lyon | 4 days |
| Apr 26, 8:45 AM CDT | River Flood Warning | FSD | Clay, Dickinson | 11 days |
| Apr 26, 8:45 AM CDT | River Flood Warning | FSD | Buena Vista, Clay | 11 days |
| Apr 26, 8:12 PM CDT | River Flood Warning | DMX | Palo Alto, Pocahontas | 21 days |
| Apr 27, 9:54 AM CDT | River Flood Warning | FSD | Cherokee | 21 hr |
| Apr 27, 9:54 AM CDT | River Flood Warning | FSD | Clay | 3 days |
| Apr 29, 5:17 AM CDT | River Flood Warning | DMX | Davis, Wapello | 28 hr |
| Apr 29, 9:07 AM CDT | River Flood Warning | DVN | Lee | 3 days |
| Apr 29, 9:34 AM CDT | River Flood Warning | DVN | Clinton, Scott | 5 days |
| Apr 29, 10:31 AM CDT | River Flood Warning | DVN | Louisa | 21 days |
| Apr 30, 9:07 AM CDT | River Flood Warning | DVN | Des Moines, Henry, Lee | 3 days |
| Apr 30, 3:23 PM CDT | River Flood Warning | DVN | Van Buren | 34 hr |
| Apr 30, 3:25 PM CDT | River Flood Warning | DMX | Davis, Wapello | 31 hr |
| May 1, 2:27 AM CDT | River Flood Warning | DVN | Cedar, Louisa, Muscatine | 21 hr |
| May 1, 9:56 AM CDT | River Flood Warning | DVN | Louisa | 57 hr |
| May 7, 9:19 AM CDT | River Flood Warning | DVN | Johnson, Washington | 4 days |
| May 7, 9:19 AM CDT | River Flood Warning | DVN | Cedar, Louisa, Muscatine | 21 days |
| May 7, 9:19 AM CDT | River Flood Warning | DVN | Benton, Iowa | 21 days |
| May 7, 10:04 AM CDT | River Flood Warning | DVN | Clinton, Scott | 21 days |
| May 7, 10:04 AM CDT | River Flood Warning | DVN | Des Moines, Henry, Lee | 6 days |
| May 7, 10:08 AM CDT | River Flood Warning | OAX | Harrison | 4 days |
| May 7, 11:01 AM CDT | River Flood Warning | DVN | Lee | 4 days |
| May 8, 9:39 AM CDT | River Flood Warning | FSD | Lyon | 27 days |
| May 8, 9:39 AM CDT | River Flood Warning | FSD | Lyon | 4 days |
| May 8, 9:39 AM CDT | River Flood Warning | FSD | Clay, Dickinson | 21 days |
| May 8, 9:39 AM CDT | River Flood Warning | FSD | Buena Vista, Clay | 21 days |
| May 8, 8:09 PM CDT | River Flood Warning | DMX | Humboldt | 6 days |
| May 17, 8:28 AM CDT | River Flood Warning | DVN | Benton, Iowa | 21 days |
| May 17, 8:38 AM CDT | River Flood Warning | DVN | Keokuk | 16 days |
| May 17, 10:35 AM CDT | River Flood Warning | DMX | Davis, Wapello | 16 hr |
| May 17, 11:00 AM CDT | River Flood Warning | DVN | Scott | 4 days |
| May 17, 9:09 PM CDT | River Flood Warning | DVN | Johnson, Washington | 15 days |
| May 18, 8:56 AM CDT | River Flood Warning | DVN | Clinton, Scott | 4 days |
| May 18, 8:58 AM CDT | River Flood Warning | DVN | Des Moines, Henry, Lee | 18 days |
| May 18, 9:20 AM CDT | River Flood Warning | DVN | Johnson, Louisa, Washington | 4 days |
| May 18, 9:22 AM CDT | River Flood Warning | DVN | Louisa | 21 days |
| May 18, 9:25 AM CDT | River Flood Warning | DVN | Louisa | 25 days |
| May 18, 9:40 AM CDT | River Flood Warning | DVN | Lee | 52 hr |
| May 18, 10:23 AM CDT | River Flood Warning | DVN | Dubuque | 25 days |
| May 18, 10:23 AM CDT | River Flood Warning | DVN | Clinton | 27 days |
| May 18, 10:23 AM CDT | River Flood Warning | DVN | Scott | 27 days |
| May 18, 8:40 PM CDT | River Flood Warning | DVN | Cedar, Louisa, Muscatine | 21 days |
| May 18, 9:26 PM CDT | River Flood Warning | DMX | Davis, Wapello | 20 hr |
| May 18, 10:08 PM CDT | River Flood Warning | ARX | Winneshiek | 41 hr |
| May 18, 10:20 PM CDT | River Flood Warning | ARX | Clayton | 23 days |
| May 19, 9:10 PM CDT | River Flood Warning | ARX | Clayton | 47 hr |
| May 21, 8:24 PM CDT | River Flood Warning | DMX | Davis, Wapello | 25 hr |
| May 22, 6:37 AM CDT | River Flood Warning | FSD | Sioux | 21 days |
| May 22, 10:15 AM CDT | River Flood Warning | DVN | Lee | 60 hr |
| May 22, 10:43 AM CDT | River Flood Warning | DVN | Jackson | 21 days |
| May 22, 8:18 PM CDT | River Flood Warning | DVN | Clinton, Scott | 18 days |
| May 23, 7:58 AM CDT | River Flood Warning | FSD | Clay | 18 days |
| May 24, 4:27 AM CDT | River Flood Warning | DMX | Polk | 10 days |
| May 24, 6:02 AM CDT | River Flood Warning | OAX | Page | 32 hr |
| May 24, 6:24 AM CDT | River Flood Warning | DMX | Humboldt | 17 days |
| May 24, 6:26 AM CDT | River Flood Warning | DMX | Polk | 8 days |
| May 24, 7:21 AM CDT | River Flood Warning | DMX | Dallas, Polk | 13 hr |
| May 24, 7:54 AM CDT | River Flood Warning | OAX | Fremont | 47 hr |
| May 24, 8:57 AM CDT | River Flood Warning | FSD | Clay, Dickinson | 15 days |
| May 24, 8:57 AM CDT | River Flood Warning | FSD | Clay | 21 days |
| May 24, 8:57 AM CDT | River Flood Warning | FSD | Buena Vista, Clay | 15 days |
| May 24, 9:50 AM CDT | River Flood Warning | DMX | Polk | 24 hr |
| May 24, 10:05 AM CDT | River Flood Warning | DVN | Linn | 5 days |
| May 24, 10:05 AM CDT | River Flood Warning | DVN | Cedar, Johnson, Linn | 6 days |
| May 24, 10:05 AM CDT | River Flood Warning | DVN | Cedar, Johnson | 6 days |
| May 24, 10:05 AM CDT | River Flood Warning | DVN | Johnson, Louisa, Washington | 9 days |
| May 24, 10:05 AM CDT | River Flood Warning | DVN | Louisa | 5 days |
| May 24, 10:33 AM CDT | River Flood Warning | DMX | Davis, Wapello | 47 days |
| May 24, 10:36 AM CDT | River Flood Warning | DMX | Tama | 6 days |
| May 24, 10:36 AM CDT | River Flood Warning | DMX | Black Hawk | 8 days |
| May 24, 10:36 AM CDT | River Flood Warning | DMX | Webster | 11 days |
| May 24, 10:36 AM CDT | River Flood Warning | DMX | Boone, Hamilton, Webster | 3 days |
| May 24, 10:36 AM CDT | River Flood Warning | DMX | Dallas, Greene | 7 days |
| May 24, 10:45 AM CDT | River Flood Warning | DVN | Lee | 41 days |
| May 24, 2:42 PM CDT | River Flood Warning | DVN | Delaware, Jones | 29 hr |
| May 24, 2:42 PM CDT | River Flood Warning | DVN | Cedar, Jones, Linn | 5 days |
| May 25, 10:47 AM CDT | River Flood Warning | FSD | Clay | 10 days |
| May 25, 6:49 PM CDT | River Flood Warning | DMX | Madison, Warren | 25 hr |
| May 26, 10:02 AM CDT | River Flood Warning | DVN | Van Buren | 8 days |
| May 26, 5:41 PM CDT | River Flood Warning | DMX | Mahaska, Wapello | 19 days |
| May 27, 6:05 AM CDT | River Flood Warning | FSD | Cherokee | 21 days |
| May 27, 8:27 AM CDT | River Flood Warning | FSD | Lyon | 5 days |
| May 27, 10:17 AM CDT | River Flood Warning | DVN | Linn | 21 days |
| May 27, 10:17 AM CDT | River Flood Warning | DVN | Benton, Linn | 7 days |
| May 27, 10:17 AM CDT | River Flood Warning | DVN | Cedar, Johnson | 21 days |
| May 27, 10:17 AM CDT | River Flood Warning | DVN | Louisa | 21 days |
| May 27, 10:31 AM CDT | River Flood Warning | OAX | Harrison | 18 days |
| May 27, 11:21 AM CDT | River Flood Warning | FSD | O'Brien | 21 days |
| May 27, 2:47 PM CDT | River Flood Warning | FSD | Sioux | 21 days |
| May 27, 2:58 PM CDT | River Flood Warning | FSD | Lyon, Sioux | 68 hr |
| May 27, 9:00 PM CDT | River Flood Warning | FSD | Sioux | 58 hr |
| May 28, 6:31 AM CDT | River Flood Warning | OAX | Pottawattamie | 16 days |
| May 28, 7:45 AM CDT | River Flood Warning | FSD | Plymouth, Sioux | 6 hr |
| May 28, 9:20 AM CDT | River Flood Warning | OAX | Fremont | 50 hr |
| May 28, 9:20 AM CDT | River Flood Warning | OAX | Fremont | 62 hr |
| May 28, 9:20 AM CDT | River Flood Warning | OAX | Montgomery | 68 hr |
| May 28, 9:48 AM CDT | River Flood Warning | DMX | Decatur | 48 hr |
| May 28, 9:48 AM CDT | River Flood Warning | DMX | Lucas, Wayne | 36 hr |
| May 28, 10:51 AM CDT | River Flood Warning | DMX | Palo Alto, Pocahontas | 9 days |
| May 28, 10:51 AM CDT | River Flood Warning | DMX | Madison, Warren | 35 hr |
| May 28, 10:51 AM CDT | River Flood Warning | DMX | Madison, Warren | 60 hr |
| May 28, 12:31 PM CDT | River Flood Warning | FSD | Clay, O'Brien | 21 days |
| May 28, 1:43 PM CDT | River Flood Warning | OAX | Pottawattamie | 44 hr |
| May 28, 1:43 PM CDT | River Flood Warning | OAX | Page | 35 hr |
| May 28, 2:54 PM CDT | River Flood Warning | DVN | Cedar, Johnson | 67 hr |
| May 28, 2:54 PM CDT | River Flood Warning | DVN | Louisa | 4 days |
| May 28, 3:02 PM CDT | River Flood Warning | DMX | Dallas, Polk | 15 hr |
| May 28, 3:02 PM CDT | River Flood Warning | DMX | Polk | 3 days |
| May 28, 9:48 PM CDT | River Flood Warning | DMX | Appanoose | 44 hr |
| May 29, 4:53 AM CDT | River Flood Warning | FSD | Dickinson | 21 days |
| May 29, 4:53 AM CDT | River Flood Warning | FSD | Dickinson | 21 days |
| May 30, 9:47 AM CDT | River Flood Warning | FSD | Woodbury | 5 days |
| May 30, 10:15 AM CDT | River Flood Warning | FSD | Woodbury | 5 days |
| May 30, 10:22 AM CDT | River Flood Warning | OAX | Monona | 6 days |
| Jun 16, 9:30 AM CDT | River Flood Warning | DVN | Benton, Iowa | 4 days |
| Jun 21, 10:24 AM CDT | River Flood Warning | DMX | Polk | 5 days |
| Jun 23, 5:17 AM CDT | River Flood Warning | DMX | Dallas, Greene | 40 hr |
| Jun 23, 9:52 AM CDT | River Flood Warning | DMX | Polk | 18 hr |
| Jun 27, 12:36 PM CDT | River Flood Warning | FSD | Plymouth, Sioux | 4 days |
| Jun 27, 12:36 PM CDT | River Flood Warning | FSD | Plymouth | 31 days |
| Jun 27, 12:36 PM CDT | River Flood Warning | FSD | Lyon | 32 hr |
| Jun 27, 2:26 PM CDT | River Flood Warning | FSD | Lyon | 7 hr |
| Jun 28, 4:50 AM CDT | River Flood Warning | FSD | Plymouth | 31 days |
| Jun 28, 10:31 AM CDT | River Flood Warning | ARX | Allamakee | 44 hr |
| Jun 28, 1:42 PM CDT | River Flood Warning | FSD | Lyon | 25 hr |
| Jun 28, 6:56 PM CDT | River Flood Warning | DMX | Mahaska, Wapello | 12 hr |
| Jun 29, 7:04 AM CDT | River Flood Warning | ARX | Winneshiek | 21 hr |
| Jul 1, 11:01 PM CDT | River Flood Warning | FSD | Lyon | 3 days |
| Jul 1, 11:01 PM CDT | River Flood Warning | FSD | Sioux | 21 days |
| Jul 1, 11:01 PM CDT | River Flood Warning | FSD | Sioux | 22 hr |
| Jul 2, 3:46 AM CDT | River Flood Warning | FSD | Plymouth, Sioux | 48 hr |
| Jul 2, 7:40 AM CDT | River Flood Warning | FSD | Plymouth, Sioux | 7 days |
| Jul 2, 10:39 AM CDT | River Flood Warning | DVN | Des Moines | 21 days |
| Jul 2, 10:39 AM CDT | River Flood Warning | DVN | Des Moines, Lee | 16 days |
| Jul 3, 8:27 AM CDT | River Flood Warning | DVN | Clinton, Scott | 5 days |
| Jul 3, 9:49 AM CDT | River Flood Warning | OAX | Harrison | 51 hr |
| Jul 3, 10:47 AM CDT | River Flood Warning | DVN | Des Moines, Louisa | 10 days |
| Jul 3, 1:25 PM CDT | River Flood Warning | DMX | Emmet | 69 hr |
| Jul 3, 9:39 PM CDT | River Flood Warning | DVN | Louisa | 7 days |
| Jul 9, 10:40 AM CDT | River Flood Warning | FSD | Lyon | 21 days |
| Jul 9, 10:13 PM CDT | River Flood Warning | FSD | Plymouth, Sioux | 5 days |
| Jul 10, 6:19 AM CDT | River Flood Warning | FSD | Lyon, Sioux | 19 hr |
| Jul 10, 4:38 PM CDT | River Flood Warning | FSD | Sioux | 21 days |
| Jul 15, 8:33 AM CDT | River Flood Warning | FSD | Plymouth, Sioux | 11 days |
| Jul 17, 9:02 AM CDT | River Flood Warning | FSD | Lyon | 67 hr |
| Jul 17, 9:56 AM CDT | River Flood Warning | FSD | Lyon, Sioux | 21 days |
| Jul 17, 10:52 AM CDT | River Flood Warning | FSD | Lyon | 53 hr |
| Jul 17, 7:41 PM CDT | River Flood Warning | FSD | Sioux | 72 hr |
| Jul 20, 9:46 AM CDT | River Flood Warning | FSD | Lyon | 25 hr |
| Jul 21, 10:10 AM CDT | River Flood Warning | FSD | Sioux | 21 days |
| Aug 5, 10:04 AM CDT | River Flood Warning | OAX | Mills | 3 days |
| Aug 10, 9:53 AM CDT | River Flood Warning | OAX | Mills | 22 days |
| Sep 11, 8:01 AM CDT | River Flood Warning | FSD | Lyon | 29 days |
| Sep 11, 9:10 AM CDT | River Flood Warning | FSD | Lyon | 14 days |
| Sep 11, 9:10 AM CDT | River Flood Warning | FSD | Plymouth, Sioux | 16 days |
| Sep 11, 9:10 AM CDT | River Flood Warning | FSD | Plymouth | 21 days |
| Sep 11, 10:03 AM CDT | River Flood Warning | OAX | Harrison, Pottawattamie | 31 days |
| Sep 11, 10:03 AM CDT | River Flood Warning | OAX | Mills | 58 days |
| Sep 12, 7:14 AM CDT | River Flood Warning | FSD | Lyon, Sioux | 21 days |
| Sep 12, 7:14 AM CDT | River Flood Warning | FSD | Lyon | 4 days |
| Sep 12, 9:15 AM CDT | River Flood Warning | FSD | Lyon | 60 hr |
| Sep 12, 11:32 AM CDT | River Flood Warning | FSD | Sioux | 21 days |
| Sep 12, 8:42 PM CDT | River Flood Warning | ARX | Floyd | 65 hr |
| Sep 13, 1:36 AM CDT | River Flood Warning | FSD | Lyon, Sioux | 3 days |
| Sep 13, 11:33 AM CDT | River Flood Warning | OAX | Monona | 13 days |
| Sep 13, 11:33 AM CDT | River Flood Warning | OAX | Pottawattamie | 21 days |
| Sep 13, 11:43 AM CDT | River Flood Warning | FSD | Plymouth | 21 days |
| Sep 14, 1:53 AM CDT | River Flood Warning | FSD | Woodbury | 7 days |
| Sep 14, 11:34 AM CDT | River Flood Warning | FSD | Woodbury | 5 days |
| Sep 21, 10:32 AM CDT | River Flood Warning | DVN | Des Moines, Louisa | 49 days |
| Sep 21, 9:31 PM CDT | River Flood Warning | DVN | Muscatine, Scott | 5 days |
| Sep 21, 9:31 PM CDT | River Flood Warning | DVN | Louisa, Muscatine | 7 days |
| Sep 21, 9:31 PM CDT | River Flood Warning | DVN | Louisa | 7 days |
| Sep 21, 9:31 PM CDT | River Flood Warning | DVN | Des Moines | 50 days |
| Sep 22, 11:24 AM CDT | River Flood Warning | DVN | Muscatine | 6 days |
| Sep 22, 11:24 AM CDT | River Flood Warning | DVN | Des Moines, Lee | 50 days |
| Sep 25, 8:09 AM CDT | River Flood Warning | OAX | Montgomery | 9 hr |
| Sep 30, 1:02 PM CDT | River Flood Warning | OAX | Pottawattamie | 45 hr |
| Oct 1, 11:27 AM CDT | River Flood Warning | DVN | Muscatine, Scott | 35 days |
| Oct 1, 11:27 AM CDT | River Flood Warning | DVN | Muscatine | 24 days |
| Oct 1, 11:27 AM CDT | River Flood Warning | DVN | Louisa, Muscatine | 36 days |
| Oct 1, 11:27 AM CDT | River Flood Warning | DVN | Louisa | 37 days |
| Oct 1, 6:10 PM CDT | River Flood Warning | FSD | Plymouth | 21 days |
| Oct 1, 8:06 PM CDT | River Flood Warning | FSD | Plymouth | 10 days |
| Oct 1, 9:35 PM CDT | River Flood Warning | ARX | Clayton | 69 hr |
| Oct 1, 9:35 PM CDT | River Flood Warning | ARX | Clayton | 69 hr |
| Oct 2, 4:54 AM CDT | River Flood Warning | DVN | Delaware, Jones | 38 hr |
| Oct 2, 7:49 AM CDT | River Flood Warning | DVN | Jackson | 3 days |
| Oct 2, 7:49 AM CDT | River Flood Warning | DVN | Benton, Iowa | 58 hr |
| Oct 2, 8:46 AM CDT | River Flood Warning | DVN | Dubuque | 5 days |
| Oct 2, 8:46 AM CDT | River Flood Warning | DVN | Dubuque, Jackson | 21 days |
| Oct 2, 11:01 AM CDT | River Flood Warning | DVN | Clinton | 16 days |
| Oct 2, 11:01 AM CDT | River Flood Warning | DVN | Clinton, Scott | 19 days |
| Oct 2, 11:01 AM CDT | River Flood Warning | DVN | Scott | 17 days |
| Oct 3, 9:07 AM CDT | River Flood Warning | DVN | Clinton, Scott | 21 days |
| Oct 3, 9:07 AM CDT | River Flood Warning | DVN | Keokuk | 48 hr |
| Oct 3, 10:20 AM CDT | River Flood Warning | DVN | Cedar, Louisa, Muscatine | 10 days |
| Oct 3, 10:26 AM CDT | River Flood Warning | FSD | Plymouth, Sioux | 7 days |
| Oct 3, 10:26 AM CDT | River Flood Warning | FSD | Clay, Dickinson | 7 days |
| Oct 3, 10:26 AM CDT | River Flood Warning | FSD | Clay | 7 days |
| Oct 3, 11:24 AM CDT | River Flood Warning | DVN | Lee | 21 days |
| Oct 5, 10:20 AM CDT | River Flood Warning | OAX | Pottawattamie | 3 days |
| Oct 5, 4:01 PM CDT | River Flood Warning | ARX | Clayton | 24 hr |
| Oct 5, 8:47 PM CDT | River Flood Warning | DVN | Cedar, Jones, Linn | 5 days |
| Oct 5, 8:57 PM CDT | River Flood Warning | DVN | Benton, Iowa | 5 days |
| Oct 6, 2:54 AM CDT | River Flood Warning | DVN | Delaware, Jones | 25 hr |
| Oct 6, 6:58 AM CDT | River Flood Warning | FSD | Clay | 61 hr |
| Oct 6, 7:45 AM CDT | River Flood Warning | FSD | Clay | 31 hr |
| Oct 7, 3:59 AM CDT | River Flood Warning | DMX | Black Hawk | 54 hr |
| Oct 8, 10:25 AM CDT | River Flood Warning | DVN | Dubuque | 8 days |
| Oct 8, 8:11 PM CDT | River Flood Warning | ARX | Allamakee, Clayton | 8 days |
| Oct 9, 8:44 PM CDT | River Flood Warning | ARX | Clayton | 6 days |
| Oct 27, 10:52 AM CDT | River Flood Warning | DVN | Muscatine | 7 days |
| Nov 21, 8:09 PM CST | River Flood Warning | OAX | Mills | 4 days |
| Dec 28, 10:10 AM CST | River Flood Warning | FSD | Plymouth, Sioux | 4 days |
| Dec 28, 10:10 AM CST | River Flood Warning | FSD | Clay, Dickinson | 5 days |
| Dec 28, 10:10 AM CST | River Flood Warning | FSD | Clay | 4 days |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Louisa County36
- Sioux County32
- Clay County31
- Lyon County31
- Plymouth County24
- Lee County22
- Scott County18
- Des Moines County18
- Polk County18
- Muscatine County17
- Johnson County16
- Cedar County16
- Clinton County14
- Linn County12
- Woodbury County12
- Clayton County11
- Dickinson County11
- Washington County10
- O'Brien County10
- Wapello County9
- Benton County8
- Pottawattamie County8
- Iowa County7
- Henry County7
- Jackson County7
- Jones County7
- Davis County7
- Monona County7
- Black Hawk County7
- Dallas County7
- Fremont County6
- Allamakee County6
- Dubuque County6
- Harrison County6
- Keokuk County5
- Madison County5
- Warren County5
- Mills County5
- Buena Vista County5
- Webster County5
33 more counties
- Palo Alto County5
- Pocahontas County5
- Humboldt County5
- Delaware County4
- Cherokee County4
- Greene County4
- Floyd County4
- Page County3
- Montgomery County3
- Winneshiek County3
- Story County3
- Emmet County2
- Tama County2
- Boone County2
- Hamilton County2
- Buchanan County2
- Butler County2
- Cerro Gordo County2
- Worth County2
- Van Buren County2
- Mahaska County2
- Ida County1
- Guthrie County1
- Marshall County1
- Jasper County1
- Marion County1
- Bremer County1
- Wright County1
- Kossuth County1
- Decatur County1
- Lucas County1
- Wayne County1
- Appanoose County1
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordThe radar archive20182020
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.