Alert archive / Iowa / 2026
Weather alerts in Iowa, August 2026
260 weather alerts in August 2026, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered any part of the state, so the counties below add up to more than the state.
Weather alerts by county
Each county as a circle sized by its count in August 2026. Tap one for its archive.
- Alerts
- 260
- Warnings
- 145
- Watches
- 27
- Advisories
- 23
- Busiest day
- August 7, 202636 alerts
Over time
By day
Days in UTC, the clock the archive keeps.
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 |
|---|---|---|---|---|
| Jul 31, 8:38 PM CDT | Special Weather Statement | DVN | Linn | 52 min |
| Jul 31, 9:04 PM CDT | River Flood Watch | DVN | Clinton, Scott | 57 hr |
| Aug 4, 3:40 AM CDT | Special Weather Statement | DMX | Emmet, Humboldt, Kossuth, Palo Alto | 50 min |
| Aug 4, 4:20 AM CDT | Special Weather Statement | DMX | Cerro Gordo, Franklin, Hancock, Winnebago, Worth | 55 min |
| Aug 4, 9:46 PM CDT | Special Weather Statement | DVN | Van Buren | 44 min |
| Aug 4, 10:22 PM CDT | Special Weather Statement | DVN | Van Buren | 38 min |
| Aug 4, 11:31 PM CDT | Severe Thunderstorm Warning | OAX | Mills, Montgomery | 29 min |
| Aug 5, 12:01 AM CDT | Mesoscale Discussion | SPC | Adair, Adams, Cass, Clarke, Fremont, Lucas and 9 more | 119 min |
| Aug 5, 12:07 AM CDT | Severe Thunderstorm Warning | DMX | Adair, Adams, Cass | 38 min |
| Aug 5, 12:07 AM CDT | Flash Flood Warning | OAX | Mills, Pottawattamie | 5 hr |
| Aug 5, 12:10 AM CDT | Severe Thunderstorm Warning | OAX | Montgomery | 35 min |
| Aug 5, 12:18 AM CDT | Severe Thunderstorm Warning | OAX | Mills, Montgomery | 42 min |
| Aug 5, 12:52 AM CDT | Severe Thunderstorm Warning | OAX | Montgomery, Page | 28 min |
| Aug 5, 2:03 AM CDT | Flood Watch | DVN | Des Moines, Henry, Jefferson, Keokuk, Lee, Louisa and 2 more | 16 hr |
| Aug 5, 2:14 AM CDT | Flood Watch | DMX | Appanoose, Davis, Wapello | 14 hr |
| Aug 5, 2:17 AM CDT | Severe Thunderstorm Warning | OAX | Mills, Montgomery | 43 min |
| Aug 5, 3:26 AM CDT | Areal Flood Advisory | OAX | Pottawattamie | 3 hr |
| Aug 5, 3:43 AM CDT | Severe Thunderstorm Warning | DMX | Adams, Taylor | 47 min |
| Aug 5, 5:41 AM CDT | Severe Thunderstorm Warning | DMX | Decatur, Wayne | 49 min |
| Aug 5, 6:13 AM CDT | Severe Thunderstorm Warning | DMX | Appanoose, Wayne | 47 min |
| Aug 5, 7:12 AM CDT | Flash Flood Warning | DMX | Clarke, Decatur, Lucas, Wayne | 6 hr |
| Aug 5, 9:02 AM CDT | River Flood Watch | DMX | Decatur | 25 hr |
| Aug 5, 11:51 PM CDT | Dense Fog Advisory | OAX | Fremont, Harrison, Mills, Monona, Montgomery, Page and 2 more | 10 hr |
| Aug 6, 12:43 AM CDT | Dense Fog Advisory | DMX | Adair, Adams, Appanoose, Audubon, Black Hawk, Boone and 34 more | 9 hr |
| Aug 6, 12:48 AM CDT | Dense Fog Advisory | ARX | Chickasaw, Fayette, Floyd, Howard, Mitchell, Winneshiek | 8 hr |
| Aug 6, 12:55 AM CDT | Dense Fog Advisory | FSD | Buena Vista, Cherokee, Clay, Dickinson, Ida, Lyon and 5 more | 9 hr |
| Aug 7, 2:17 AM CDT | Dense Fog Advisory | OAX | Fremont, Harrison, Mills, Monona, Montgomery, Page and 2 more | 6 hr |
| Aug 7, 2:52 AM CDT | Dense Fog Advisory | DMX | Adair, Adams, Appanoose, Audubon, Black Hawk, Boone and 44 more | 6 hr |
| Aug 7, 2:53 AM CDT | Dense Fog Advisory | DVN | Benton, Buchanan, Cedar, Delaware, Dubuque, Iowa and 7 more | 6 hr |
| Aug 7, 3:20 AM CDT | Dense Fog Advisory | ARX | Allamakee, Chickasaw, Clayton, Fayette, Floyd, Howard and 2 more | 6 hr |
| Aug 7, 7:27 AM CDT | Severe Thunderstorm Warning | FSD | Dickinson, Osceola | 22 min |
| Aug 7, 10:52 AM CDT | Mesoscale Discussion | SPC | Buena Vista, Cerro Gordo, Emmet, Hancock, Humboldt, Kossuth and 4 more | 83 min |
| Aug 7, 12:46 PM CDT | Severe Thunderstorm Warning | DMX | Winnebago, Worth | 29 min |
| Aug 7, 1:07 PM CDT | Severe Thunderstorm Warning | DMX | Cerro Gordo, Hancock, Winnebago, Worth | 23 min |
| Aug 7, 1:12 PM CDT | Severe Thunderstorm Warning | DMX | Hancock, Wright | 48 min |
| Aug 7, 1:16 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Audubon, Boone, Buena Vista, Butler and 45 more | 119 min |
| Aug 7, 1:25 PM CDT | Severe Thunderstorm Warning | DMX | Cerro Gordo, Hancock, Winnebago, Worth | 50 min |
| Aug 7, 1:37 PM CDT | Severe Thunderstorm Warning | DMX | Cerro Gordo, Hancock | 53 min |
| Aug 7, 1:40 PM CDT | Severe Thunderstorm Watch | SPC | Benton, Black Hawk, Boone, Bremer, Buchanan, Butler and 46 more | 8 hr |
| Aug 7, 1:48 PM CDT | Severe Thunderstorm Warning | ARX | Chickasaw, Floyd, Howard, Mitchell | 57 min |
| Aug 7, 2:40 PM CDT | Special Weather Statement | ARX | Chickasaw | 35 min |
| Aug 7, 2:51 PM CDT | Severe Thunderstorm Warning | ARX | Chickasaw, Fayette, Floyd | 54 min |
| Aug 7, 2:52 PM CDT | Severe Thunderstorm Warning | DMX | Bremer, Butler | 38 min |
| Aug 7, 3:47 PM CDT | Severe Thunderstorm Warning | ARX | Fayette | 58 min |
| Aug 7, 3:49 PM CDT | Severe Thunderstorm Warning | DMX | Black Hawk, Bremer | 26 min |
| Aug 7, 3:49 PM CDT | Severe Thunderstorm Warning | DVN | Buchanan | 56 min |
| Aug 7, 3:53 PM CDT | Tornado Warning | DMX | Black Hawk, Bremer | 22 min |
| Aug 7, 3:56 PM CDT | Tornado Warning | ARX | Fayette | 34 min |
| Aug 7, 3:59 PM CDT | Tornado Warning | DVN | Buchanan | 31 min |
| Aug 7, 4:16 PM CDT | Severe Thunderstorm Warning | DMX | Black Hawk, Grundy, Tama | 59 min |
| Aug 7, 4:20 PM CDT | Tornado Warning | DVN | Buchanan | 40 min |
| Aug 7, 4:38 PM CDT | Severe Thunderstorm Warning | DVN | Benton, Buchanan | 37 min |
| Aug 7, 4:48 PM CDT | Severe Thunderstorm Warning | DVN | Benton, Buchanan, Delaware, Jones, Linn | 57 min |
| Aug 7, 4:57 PM CDT | Mesoscale Discussion | SPC | Benton, Black Hawk, Boone, Buchanan, Cedar, Clinton and 15 more | 2 hr |
| Aug 7, 5:02 PM CDT | Tornado Warning | DVN | Delaware, Jones, Linn | 43 min |
| Aug 7, 5:03 PM CDT | Severe Thunderstorm Warning | DVN | Buchanan | 27 min |
| Aug 7, 5:10 PM CDT | Tornado Warning | DVN | Buchanan, Linn | 35 min |
| Aug 7, 5:18 PM CDT | Tornado Warning | DVN | Cedar, Jones, Linn | 57 min |
| Aug 7, 5:26 PM CDT | Severe Thunderstorm Warning | DVN | Benton, Iowa, Johnson, Linn | 36 min |
| Aug 7, 5:57 PM CDT | Severe Thunderstorm Warning | DVN | Cedar, Clinton | 33 min |
| Aug 7, 6:30 PM CDT | Special Weather Statement | DVN | Scott | 45 min |
| Aug 7, 6:39 PM CDT | Severe Thunderstorm Warning | DVN | Iowa | 38 min |
| Aug 7, 7:00 PM CDT | Severe Thunderstorm Warning | DVN | Iowa, Keokuk, Washington | 60 min |
| Aug 7, 7:38 PM CDT | Severe Thunderstorm Warning | DVN | Henry, Jefferson, Keokuk, Washington | 67 min |
| Aug 7, 8:28 PM CDT | Severe Thunderstorm Warning | DVN | Henry, Jefferson, Lee, Van Buren | 62 min |
| Aug 7, 8:48 PM CDT | Mesoscale Discussion | SPC | Appanoose, Clarke, Davis, Des Moines, Henry, Jasper and 11 more | 87 min |
| Aug 7, 9:07 PM CDT | Severe Thunderstorm Warning | DVN | Jefferson | 45 min |
| Aug 7, 9:28 PM CDT | Severe Thunderstorm Warning | DVN | Henry, Jefferson, Lee, Van Buren | 62 min |
| Aug 7, 10:01 PM CDT | Severe Thunderstorm Warning | DVN | Lee | 74 min |
| Aug 8, 2:09 PM CDT | Special Weather Statement | OAX | Fremont, Mills | 36 min |
| Aug 8, 4:43 PM CDT | Special Weather Statement | OAX | Mills | 32 min |
| Aug 8, 10:15 PM CDT | Special Weather Statement | OAX | Montgomery | 45 min |
| Aug 8, 10:52 PM CDT | Severe Thunderstorm Warning | OAX | Fremont, Page | 23 min |
| Aug 8, 11:18 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Cass, Clarke, Decatur, Fremont and 11 more | 117 min |
| Aug 9, 1:41 AM CDT | Heat Advisory | DVN | Cedar, Des Moines, Henry, Iowa, Jefferson, Johnson and 7 more | 18 hr |
| Aug 9, 2:49 AM CDT | Severe Thunderstorm Warning | FSD | Clay, O'Brien | 38 min |
| Aug 9, 3:34 AM CDT | Severe Thunderstorm Warning | FSD | Clay, Dickinson | 56 min |
| Aug 9, 4:03 AM CDT | Severe Thunderstorm Warning | FSD | Dickinson | 57 min |
| Aug 9, 4:07 AM CDT | Special Weather Statement | DMX | Pocahontas | 23 min |
| Aug 9, 4:32 AM CDT | Severe Thunderstorm Warning | FSD | Dickinson | 28 min |
| Aug 9, 4:34 AM CDT | Severe Thunderstorm Warning | DMX | Emmet | 26 min |
| Aug 9, 4:38 AM CDT | Mesoscale Discussion | SPC | Cerro Gordo, Dickinson, Emmet, Floyd, Hancock, Howard and 5 more | 3 hr |
| Aug 9, 4:39 AM CDT | Severe Thunderstorm Warning | DMX | Humboldt, Kossuth, Pocahontas | 20 min |
| Aug 9, 4:58 AM CDT | Severe Thunderstorm Warning | DMX | Emmet | 47 min |
| Aug 9, 5:17 AM CDT | Severe Thunderstorm Warning | DMX | Emmet, Kossuth, Palo Alto | 23 min |
| Aug 9, 5:46 AM CDT | Special Weather Statement | DMX | Humboldt | 29 min |
| Aug 9, 5:48 AM CDT | Flash Flood Warning | DMX | Webster | 3 hr |
| Aug 9, 5:56 AM CDT | Special Weather Statement | DMX | Kossuth | 34 min |
| Aug 9, 6:15 AM CDT | Severe Thunderstorm Warning | DMX | Hancock, Kossuth | 30 min |
| Aug 9, 8:20 AM CDT | Severe Thunderstorm Warning | DMX | Franklin, Hamilton, Humboldt, Webster, Wright | 55 min |
| Aug 9, 8:14 PM CDT | Mesoscale Discussion | SPC | Clinton, Des Moines, Jackson, Lee, Louisa, Muscatine and 1 more | 2 hr |
| Aug 9, 8:43 PM CDT | Severe Thunderstorm Watch | SPC | Clinton, Jackson, Scott | 7 hr |
| Aug 9, 9:07 PM CDT | Mesoscale Discussion | SPC | Fremont, Page, Ringgold, Taylor | 113 min |
| Aug 9, 10:53 PM CDT | Mesoscale Discussion | SPC | Clinton, Scott | 2 hr |
| Aug 10, 4:35 AM CDT | Special Weather Statement | DMX | Decatur | 25 min |
| Aug 10, 12:47 PM CDT | Mesoscale Discussion | SPC | Cedar, Clinton, Jackson, Jones, Muscatine, Scott | 2 hr |
| Aug 10, 1:57 PM CDT | Heat Advisory | DVN | Des Moines, Henry, Jefferson, Keokuk, Lee, Louisa and 2 more | 30 hr |
| Aug 10, 9:02 PM CDT | Tornado Warning | DVN | Delaware | 43 min |
| Aug 10, 9:07 PM CDT | Mesoscale Discussion | SPC | Benton, Black Hawk, Buchanan, Cedar, Clinton, Delaware and 7 more | 113 min |
| Aug 11, 1:15 AM CDT | Mesoscale Discussion | SPC | Cherokee, Clay, Dickinson, Lyon, O'Brien, Osceola and 2 more | 2 hr |
| Aug 11, 4:13 AM CDT | Mesoscale Discussion | SPC | Benton, Black Hawk, Boone, Bremer, Buchanan, Buena Vista and 33 more | 2 hr |
| Aug 11, 4:15 AM CDT | Severe Thunderstorm Warning | FSD | Lyon, Sioux | 35 min |
| Aug 11, 5:08 AM CDT | Special Weather Statement | DVN | Benton | 37 min |
| Aug 11, 6:51 AM CDT | Special Weather Statement | ARX | Chickasaw, Fayette, Floyd | 24 min |
| Aug 11, 6:53 AM CDT | Severe Thunderstorm Warning | DVN | Benton, Buchanan, Linn | 52 min |
| Aug 11, 6:56 AM CDT | Severe Thunderstorm Warning | ARX | Fayette | 34 min |
| Aug 11, 7:07 AM CDT | Severe Thunderstorm Warning | ARX | Allamakee, Chickasaw, Clayton, Fayette, Howard, Winneshiek | 50 min |
| Aug 11, 7:09 AM CDT | Severe Thunderstorm Warning | DVN | Benton, Buchanan, Delaware, Jones, Linn | 81 min |
| Aug 11, 7:11 AM CDT | Severe Thunderstorm Warning | DVN | Buchanan, Delaware, Jones, Linn | 49 min |
| Aug 11, 7:15 AM CDT | Tornado Warning | DVN | Buchanan, Delaware | 45 min |
| Aug 11, 7:22 AM CDT | Severe Thunderstorm Watch | SPC | Allamakee, Cedar, Clayton, Clinton, Delaware, Des Moines and 8 more | 6 hr |
| Aug 11, 7:24 AM CDT | Areal Flood Advisory | ARX | Chickasaw, Floyd | 3 hr |
| Aug 11, 7:30 AM CDT | Severe Thunderstorm Warning | ARX | Allamakee, Winneshiek | 15 min |
| Aug 11, 7:33 AM CDT | Severe Thunderstorm Warning | DVN | Dubuque, Jackson | 57 min |
| Aug 11, 7:36 AM CDT | Tornado Warning | DVN | Delaware, Dubuque | 39 min |
| Aug 11, 7:37 AM CDT | Severe Thunderstorm Warning | ARX | Clayton | 54 min |
| Aug 11, 7:59 AM CDT | Severe Thunderstorm Warning | DVN | Clinton, Jackson, Jones | 61 min |
| Aug 11, 8:01 AM CDT | Tornado Warning | DVN | Clinton, Jackson | 44 min |
| Aug 11, 8:20 AM CDT | Severe Thunderstorm Warning | DVN | Clinton, Scott | 43 min |
| Aug 11, 8:29 AM CDT | Tornado Warning | DVN | Clinton | 20 min |
| Aug 11, 8:38 AM CDT | Tornado Warning | DVN | Scott | 23 min |
| Aug 11, 8:54 AM CDT | Severe Thunderstorm Warning | DVN | Scott | 81 min |
| Aug 11, 9:00 AM CDT | Mesoscale Discussion | SPC | Cedar, Clinton, Dubuque, Jackson, Jones, Muscatine and 1 more | 2 hr |
| Aug 11, 8:04 PM CDT | Mesoscale Discussion | SPC | Cedar, Clinton, Delaware, Dubuque, Jackson, Jones and 2 more | 2 hr |
| Aug 12, 1:18 AM CDT | Heat Advisory | DVN | Des Moines, Henry, Jefferson, Lee, Van Buren | 12 hr |
| Aug 12, 2:24 AM CDT | Severe Thunderstorm Watch | SPC | Adair, Adams, Audubon, Boone, Buena Vista, Calhoun and 33 more | 8 hr |
| Aug 12, 4:16 AM CDT | Severe Thunderstorm Warning | FSD | Plymouth, Woodbury | 37 min |
| Aug 12, 4:32 AM CDT | Special Weather Statement | DVN | Iowa | 43 min |
| Aug 12, 4:37 AM CDT | Severe Thunderstorm Warning | DVN | Benton, Iowa, Johnson, Linn | 53 min |
| Aug 12, 4:37 AM CDT | Mesoscale Discussion | SPC | Adair, Adams, Audubon, Boone, Carroll, Cass and 34 more | 53 min |
| Aug 12, 5:14 AM CDT | Severe Thunderstorm Warning | OAX | Harrison | 46 min |
| Aug 12, 5:25 AM CDT | Severe Thunderstorm Warning | DVN | Benton, Cedar, Iowa, Johnson, Linn | 65 min |
| Aug 12, 6:09 AM CDT | Severe Thunderstorm Warning | DVN | Cedar, Clinton, Muscatine, Scott | 66 min |
| Aug 12, 6:19 AM CDT | Flash Flood Warning | DVN | Benton, Iowa, Johnson, Linn | 3 hr |
| Aug 12, 6:19 AM CDT | Severe Thunderstorm Warning | DVN | Cedar, Scott | 3 min |
| Aug 12, 6:39 AM CDT | Severe Thunderstorm Warning | DVN | Benton, Iowa | 31 min |
| Aug 12, 6:41 AM CDT | Severe Thunderstorm Watch | SPC | Cedar, Clinton, Des Moines, Johnson, Louisa, Muscatine and 2 more | 6 hr |
| Aug 12, 6:53 AM CDT | Severe Thunderstorm Warning | DVN | Clinton, Scott | 67 min |
| Aug 12, 7:18 AM CDT | Flash Flood Warning | DVN | Scott | 94 min |
| Aug 12, 7:27 AM CDT | Severe Thunderstorm Warning | DVN | Des Moines, Henry, Lee | 63 min |
| Aug 12, 7:30 AM CDT | Mesoscale Discussion | SPC | Adair, Adams, Boone, Clarke, Dallas, Guthrie and 11 more | 2 hr |
| Aug 12, 7:54 AM CDT | Severe Thunderstorm Warning | DVN | Lee, Van Buren | 36 min |
| Aug 12, 8:12 AM CDT | Severe Thunderstorm Warning | DVN | Van Buren | 63 min |
| Aug 12, 8:20 AM CDT | Severe Thunderstorm Warning | DVN | Lee | 55 min |
| Aug 12, 8:26 AM CDT | Severe Thunderstorm Warning | DMX | Story | 23 min |
| Aug 12, 10:33 AM CDT | Flash Flood Warning | DMX | Hardin | 3 hr |
| Aug 12, 10:57 AM CDT | Special Weather Statement | DVN | Louisa | 33 min |
| Aug 13, 1:31 AM CDT | Severe Thunderstorm Watch | SPC | Adair, Adams, Audubon, Calhoun, Carroll, Cass and 13 more | 6 hr |
| Aug 13, 2:22 AM CDT | Flood Watch | DVN | Benton, Buchanan, Cedar, Clinton, Delaware, Des Moines and 15 more | 56 hr |
| Aug 13, 2:35 AM CDT | Dense Fog Advisory | DVN | Cedar, Clinton, Des Moines, Henry, Jackson, Jefferson and 9 more | 6 hr |
| Aug 13, 2:42 AM CDT | Mesoscale Discussion | SPC | Harrison, Shelby | 2 hr |
| Aug 13, 2:53 AM CDT | Flood Watch | DMX | Adair, Adams, Appanoose, Audubon, Black Hawk, Boone and 38 more | 55 hr |
| Aug 13, 4:27 AM CDT | Severe Thunderstorm Warning | OAX | Harrison, Monona, Shelby | 48 min |
| Aug 13, 4:29 AM CDT | Severe Thunderstorm Warning | DMX | Crawford | 46 min |
| Aug 13, 4:44 AM CDT | Tornado Warning | DMX | Carroll, Crawford | 31 min |
| Aug 13, 4:49 AM CDT | Areal Flood Advisory | OAX | Pottawattamie | 116 min |
| Aug 13, 4:49 AM CDT | Mesoscale Discussion | SPC | Adair, Adams, Audubon, Boone, Carroll, Cass and 13 more | 116 min |
| Aug 13, 5:01 AM CDT | Areal Flood Advisory | OAX | Monona | 2 hr |
| Aug 13, 5:09 AM CDT | Severe Thunderstorm Warning | DMX | Audubon, Carroll, Crawford, Greene, Guthrie | 51 min |
| Aug 13, 5:25 AM CDT | Flash Flood Warning | OAX | Monona | 2 hr |
| Aug 13, 5:30 AM CDT | Tornado Warning | DMX | Carroll | 30 min |
| Aug 13, 5:46 AM CDT | Tornado Warning | DMX | Greene | 29 min |
| Aug 13, 5:47 AM CDT | Severe Thunderstorm Watch | SPC | Benton, Boone, Cedar, Clarke, Dallas, Des Moines and 29 more | 6 hr |
| Aug 13, 5:51 AM CDT | Severe Thunderstorm Warning | DMX | Boone, Carroll, Dallas, Greene, Guthrie, Polk | 39 min |
| Aug 13, 6:27 AM CDT | Severe Thunderstorm Warning | DMX | Boone, Dallas, Jasper, Marshall, Polk, Story | 48 min |
| Aug 13, 6:44 AM CDT | Tornado Warning | DMX | Marshall, Story | 20 min |
| Aug 13, 6:48 AM CDT | Tornado Warning | DMX | Jasper, Marshall, Polk, Story | 27 min |
| Aug 13, 7:11 AM CDT | Severe Thunderstorm Warning | DMX | Jasper, Marshall, Poweshiek, Story, Tama | 49 min |
| Aug 13, 7:27 AM CDT | Mesoscale Discussion | SPC | Benton, Cedar, Clarke, Davis, Henry, Iowa and 16 more | 2 hr |
| Aug 13, 8:48 AM CDT | Severe Thunderstorm Warning | DMX | Mahaska, Wapello | 42 min |
| Aug 13, 8:52 AM CDT | Severe Thunderstorm Warning | DVN | Jefferson, Keokuk | 53 min |
| Aug 13, 9:10 AM CDT | Tornado Warning | DVN | Jefferson, Keokuk, Washington | 50 min |
| Aug 13, 9:36 AM CDT | Severe Thunderstorm Warning | DVN | Henry, Jefferson, Louisa, Van Buren, Washington | 54 min |
| Aug 13, 9:44 AM CDT | River Flood Watch | DVN | Clinton, Scott | 81 min |
| Aug 13, 10:28 AM CDT | Mesoscale Discussion | SPC | Des Moines, Henry, Lee, Louisa | 3 hr |
| Aug 13, 10:35 AM CDT | Special Weather Statement | DVN | Des Moines, Louisa | 55 min |
| Aug 13, 11:05 AM CDT | River Flood Warning | DVN | Clinton, Scott | 23 hr |
| Aug 13, 11:07 AM CDT | River Flood Warning | DVN | Louisa, Muscatine | 62 hr |
| Aug 13, 11:10 AM CDT | River Flood Watch | DVN | Johnson, Louisa, Washington | 68 hr |
| Aug 13, 11:10 AM CDT | River Flood Watch | DVN | Louisa | 7 days |
| Aug 13, 11:10 AM CDT | River Flood Watch | DVN | Louisa | 7 days |
| Aug 13, 11:10 AM CDT | River Flood Warning | DVN | Benton, Iowa | 37 hr |
| Aug 13, 11:14 AM CDT | River Flood Watch | DVN | Johnson, Washington | 72 hr |
| Aug 13, 11:03 PM CDT | Mesoscale Discussion | SPC | Cedar, Des Moines, Henry, Johnson, Lee, Louisa and 3 more | 117 min |
| Aug 14, 2:20 AM CDT | Mesoscale Discussion | SPC | Adair, Adams, Audubon, Boone, Buena Vista, Calhoun and 34 more | 2 hr |
| Aug 14, 3:44 AM CDT | Flash Flood Warning | DVN | Des Moines | 6 hr |
| Aug 14, 4:16 AM CDT | Flash Flood Warning | OAX | Harrison | 3 hr |
| Aug 14, 4:41 AM CDT | Flash Flood Warning | OAX | Pottawattamie, Shelby | 3 hr |
| Aug 14, 4:49 AM CDT | Special Weather Statement | DVN | Keokuk, Washington | 41 min |
| Aug 14, 4:52 AM CDT | Flash Flood Warning | DMX | Adair, Audubon, Cass, Guthrie | 3 hr |
| Aug 14, 4:59 AM CDT | Flash Flood Warning | DVN | Des Moines, Louisa | 6 hr |
| Aug 14, 5:33 AM CDT | Flash Flood Warning | DVN | Keokuk, Washington | 5 hr |
| Aug 14, 5:38 AM CDT | Flash Flood Warning | FSD | Woodbury | 3 hr |
| Aug 14, 9:52 AM CDT | Flood Watch | OAX | Harrison, Monona, Pottawattamie, Shelby | 7 hr |
| Aug 14, 2:59 PM CDT | River Flood Watch | DVN | Des Moines, Henry, Lee | 18 hr |
| Aug 14, 2:59 PM CDT | River Flood Watch | DVN | Keokuk | 18 hr |
| Aug 14, 3:24 PM CDT | River Flood Warning | DVN | Johnson, Washington | 3 days |
| Aug 14, 3:24 PM CDT | River Flood Warning | DVN | Louisa | 3 days |
| Aug 14, 3:24 PM CDT | River Flood Warning | DVN | Louisa | 3 days |
| Aug 14, 3:29 PM CDT | River Flood Watch | DVN | Clinton, Scott | 18 hr |
| Aug 14, 11:11 PM CDT | Severe Thunderstorm Warning | DVN | Lee | 64 min |
| Aug 14, 11:42 PM CDT | Mesoscale Discussion | SPC | Davis, Lee, Van Buren | 2 hr |
| Aug 15, 12:58 AM CDT | Flash Flood Warning | DVN | Lee | 6 hr |
| Aug 15, 3:19 AM CDT | Flash Flood Warning | DVN | Des Moines, Henry, Jefferson, Lee, Van Buren | 5 hr |
| Aug 15, 8:33 AM CDT | Areal Flood Warning | DVN | Lee | 6 hr |
| Aug 15, 9:15 AM CDT | River Flood Warning | DVN | Des Moines, Henry, Lee | 57 hr |
| Aug 15, 4:02 PM CDT | Mesoscale Discussion | SPC | Appanoose, Davis, Henry, Jefferson, Lee, Monroe and 2 more | 118 min |
| Aug 15, 5:31 PM CDT | Special Weather Statement | DVN | Lee | 29 min |
| Aug 15, 5:41 PM CDT | Severe Thunderstorm Warning | DVN | Lee, Van Buren | 34 min |
| Aug 15, 7:58 PM CDT | Special Weather Statement | DVN | Henry, Jefferson, Louisa, Washington | 62 min |
| Aug 15, 8:43 PM CDT | Special Weather Statement | DVN | Des Moines, Louisa, Muscatine | 47 min |
| Aug 15, 9:04 PM CDT | Special Weather Statement | DVN | Muscatine, Scott | 41 min |
| Aug 15, 9:23 PM CDT | Flash Flood Warning | DVN | Louisa | 6 hr |
| Aug 15, 9:44 PM CDT | Special Weather Statement | DVN | Scott | 46 min |
| Aug 15, 9:50 PM CDT | Severe Thunderstorm Warning | DVN | Scott | 55 min |
| Aug 16, 4:31 AM CDT | Dense Fog Advisory | DVN | Benton, Buchanan, Cedar, Clinton, Delaware, Dubuque and 7 more | 4 hr |
| Aug 16, 10:54 AM CDT | River Flood Warning | DMX | Polk, Warren | 23 hr |
| Aug 18, 1:52 PM CDT | Mesoscale Discussion | SPC | Allamakee, Black Hawk, Bremer, Buchanan, Butler, Cerro Gordo and 10 more | 113 min |
| Aug 18, 2:28 PM CDT | Severe Thunderstorm Warning | ARX | Clayton | 46 min |
| Aug 18, 2:47 PM CDT | Mesoscale Discussion | SPC | Clay, Dickinson, Emmet, Hancock, Humboldt, Kossuth and 8 more | 118 min |
| Aug 18, 2:48 PM CDT | Severe Thunderstorm Watch | SPC | Allamakee, Buchanan, Chickasaw, Clayton, Delaware, Dubuque and 5 more | 6 hr |
| Aug 18, 5:29 PM CDT | Mesoscale Discussion | SPC | Allamakee, Clayton, Delaware, Dubuque | 2 hr |
| Aug 18, 6:48 PM CDT | Severe Thunderstorm Watch | SPC | Black Hawk, Bremer, Buena Vista, Butler, Calhoun, Cerro Gordo and 17 more | 114 min |
| Aug 18, 7:07 PM CDT | Severe Thunderstorm Warning | FSD | Dickinson, Osceola | 20 min |
| Aug 18, 7:20 PM CDT | Severe Thunderstorm Warning | DMX | Emmet, Palo Alto | 40 min |
| Aug 18, 7:53 PM CDT | Severe Thunderstorm Warning | DMX | Palo Alto | 17 min |
| Aug 19, 9:53 AM CDT | Severe Thunderstorm Watch | SPC | Fremont | 6 hr |
| Aug 19, 12:26 PM CDT | Mesoscale Discussion | SPC | Fremont, Mills, Montgomery, Page | 2 hr |
| Aug 19, 1:57 PM CDT | Tornado Warning | OAX | Fremont | 14 min |
| Aug 19, 2:23 PM CDT | Severe Thunderstorm Warning | OAX | Fremont | 52 min |
| Aug 19, 2:30 PM CDT | Mesoscale Discussion | SPC | Page, Ringgold, Taylor | 90 min |
| Aug 19, 2:35 PM CDT | Areal Flood Advisory | OAX | Fremont | 4 hr |
| Aug 19, 2:38 PM CDT | Special Weather Statement | DVN | Henry, Jefferson | 52 min |
| Aug 19, 2:52 PM CDT | Severe Thunderstorm Watch | SPC | Page, Taylor | 5 hr |
| Aug 19, 2:53 PM CDT | Tornado Warning | DVN | Des Moines, Louisa | 24 min |
| Aug 19, 3:13 PM CDT | Severe Thunderstorm Warning | OAX | Fremont, Page | 32 min |
| Aug 19, 3:25 PM CDT | Special Weather Statement | DVN | Des Moines, Henry, Van Buren | 65 min |
| Aug 19, 4:23 PM CDT | Special Weather Statement | DVN | Des Moines, Lee | 52 min |
| Aug 19, 4:36 PM CDT | Flash Flood Warning | DVN | Des Moines, Henry, Lee | 2 hr |
| Aug 19, 5:12 PM CDT | Special Weather Statement | DVN | Lee | 63 min |
| Aug 19, 7:03 PM CDT | Special Weather Statement | OAX | Montgomery | 27 min |
| Aug 20, 2:17 AM CDT | Dense Fog Advisory | OAX | Fremont, Harrison, Mills, Monona, Montgomery, Page and 2 more | 8 hr |
| Aug 20, 2:21 AM CDT | Dense Fog Advisory | FSD | Plymouth, Woodbury | 7 hr |
| Aug 20, 7:13 PM CDT | Mesoscale Discussion | SPC | Lyon | 62 min |
| Aug 21, 2:33 AM CDT | Special Weather Statement | ARX | Howard, Mitchell | 27 min |
| Aug 21, 2:54 AM CDT | Special Weather Statement | ARX | Howard | 36 min |
| Aug 21, 3:01 AM CDT | Severe Thunderstorm Warning | ARX | Howard, Winneshiek | 38 min |
| Aug 21, 2:22 PM CDT | Mesoscale Discussion | SPC | Clinton, Jackson, Scott | 113 min |
| Aug 21, 2:57 PM CDT | Severe Thunderstorm Watch | SPC | Clayton, Clinton, Dubuque, Jackson, Scott | 9 hr |
| Aug 21, 4:26 PM CDT | Severe Thunderstorm Warning | DVN | Dubuque | 29 min |
| Aug 21, 4:28 PM CDT | Severe Thunderstorm Warning | ARX | Clayton | 17 min |
| Aug 21, 5:24 PM CDT | Severe Thunderstorm Warning | DVN | Dubuque, Jackson, Jones | 40 min |
| Aug 21, 6:20 PM CDT | Severe Thunderstorm Warning | DVN | Clinton, Jackson, Jones | 21 min |
| Aug 21, 6:51 PM CDT | Severe Thunderstorm Warning | DVN | Cedar, Clinton, Jones, Scott | 21 min |
| Aug 21, 6:54 PM CDT | Severe Thunderstorm Warning | DVN | Clinton, Jackson | 66 min |
| Aug 21, 8:13 PM CDT | Severe Thunderstorm Warning | DVN | Scott | 34 min |
| Aug 26, 1:33 AM CDT | Dense Fog Advisory | OAX | Fremont, Mills, Montgomery, Page | 7 hr |
| Aug 29, 5:08 AM CDT | Severe Thunderstorm Warning | FSD | O'Brien, Sioux | 8 min |
| Aug 30, 1:04 PM CDT | Heat Advisory | DVN | Benton, Buchanan, Cedar, Clinton, Delaware, Des Moines and 15 more | 6 days |
| Aug 30, 1:32 PM CDT | Heat Advisory | DMX | Adair, Adams, Appanoose, Audubon, Black Hawk, Boone and 32 more | 6 days |
By product
Every kind of product issued here, grouped by hazard. Each opens the same place narrowed to that product.
| Product | Alerts |
|---|---|
| Severe storms | |
| Severe Thunderstorm Warning | 97 |
| Tornado Warning | 21 |
| Severe Thunderstorm Watch | 12 |
| Mesoscale Discussion | 33 |
| Special Weather Statement | 32 |
| Flooding | |
| Areal Flood Warning | 1 |
| Flash Flood Warning | 18 |
| River Flood Warning | 8 |
| Flood Watch | 5 |
| River Flood Watch | 10 |
| Areal Flood Advisory | 5 |
| Heat | |
| Heat Advisory | 5 |
| Fog and smoke | |
| Dense Fog Advisory | 13 |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Scott County35
- Lee County32
- Clinton County31
- Louisa County29
- Des Moines County27
- Henry County27
- Linn County24
- Van Buren County24
- Jefferson County24
- Washington County23
- Cedar County23
- Johnson County22
- Jones County22
- Benton County21
- Buchanan County21
- Jackson County21
- Iowa County20
- Keokuk County19
- Delaware County19
- Muscatine County19
- Montgomery County18
- Story County18
- Mills County17
- Clarke County16
- Fremont County16
- Boone County16
- Polk County16
- Dubuque County16
- Humboldt County15
- Hancock County15
- Adair County15
- Adams County15
- Pottawattamie County15
- Warren County15
- Marshall County15
- Cass County14
- Madison County14
- Page County14
- Shelby County14
- Carroll County14
59 more counties
- Grundy County14
- Guthrie County14
- Dallas County14
- Jasper County14
- Tama County14
- Kossuth County13
- Cerro Gordo County13
- Union County13
- Harrison County13
- Black Hawk County13
- Crawford County13
- Greene County13
- Webster County13
- Emmet County12
- Winnebago County12
- Worth County12
- Lucas County12
- Monona County12
- Audubon County12
- Hamilton County12
- Pocahontas County12
- Wright County12
- Chickasaw County12
- Fayette County12
- Mahaska County12
- Palo Alto County11
- Franklin County11
- Ringgold County11
- Taylor County11
- Wapello County11
- Decatur County11
- Hardin County11
- Floyd County11
- Howard County11
- Dickinson County11
- Marion County11
- Poweshiek County11
- Bremer County10
- Calhoun County10
- Monroe County10
- Clayton County10
- Wayne County9
- Butler County9
- Sac County9
- Mitchell County9
- Appanoose County8
- Davis County8
- Winneshiek County8
- Clay County8
- Buena Vista County7
- Cherokee County7
- O'Brien County7
- Osceola County7
- Woodbury County7
- Allamakee County7
- Plymouth County6
- Ida County5
- Lyon County5
- Sioux County5
Nearby
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.