Alert archive / Iowa / 2018
Weather alerts in Iowa, August 2018
278 weather alerts in August 2018, 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 2018. Tap one for its archive.
- Alerts
- 278
- Warnings
- 112
- Watches
- 10
- Advisories
- 15
- Busiest day
- August 28, 201863 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 |
|---|---|---|---|---|
| Aug 1, 4:29 PM CDT | Severe Thunderstorm Warning | DMX | Hancock, Wright | 46 min |
| Aug 1, 5:03 PM CDT | Severe Thunderstorm Warning | DMX | Hancock, Wright | 27 min |
| Aug 1, 5:17 PM CDT | Special Weather Statement | ARX | Mitchell | 43 min |
| Aug 1, 5:26 PM CDT | Severe Thunderstorm Warning | ARX | Chickasaw, Floyd, Howard, Mitchell | 49 min |
| Aug 1, 5:36 PM CDT | Special Weather Statement | DMX | Cerro Gordo | 54 min |
| Aug 1, 6:09 PM CDT | Severe Thunderstorm Warning | ARX | Howard, Winneshiek | 51 min |
| Aug 1, 6:19 PM CDT | Severe Thunderstorm Warning | DMX | Hamilton, Webster | 41 min |
| Aug 1, 6:40 PM CDT | Severe Thunderstorm Warning | DMX | Carroll, Greene, Guthrie | 50 min |
| Aug 1, 6:52 PM CDT | Mesoscale Discussion | SPC | Allamakee, Benton, Black Hawk, Boone, Bremer, Buchanan and 20 more | 2 hr |
| Aug 1, 6:53 PM CDT | Severe Thunderstorm Warning | DMX | Boone, Hamilton, Story, Webster | 52 min |
| Aug 1, 6:59 PM CDT | Severe Thunderstorm Warning | DMX | Hamilton, Hardin | 46 min |
| Aug 1, 7:40 PM CDT | Severe Thunderstorm Warning | DMX | Dallas, Greene, Guthrie | 50 min |
| Aug 1, 8:16 PM CDT | Severe Thunderstorm Warning | DMX | Boone, Dallas, Jasper, Polk, Story | 44 min |
| Aug 1, 8:18 PM CDT | Special Weather Statement | DVN | Buchanan | 27 min |
| Aug 1, 8:43 PM CDT | Special Weather Statement | DVN | Buchanan | 32 min |
| Aug 1, 9:38 PM CDT | Special Weather Statement | DVN | Buchanan | 37 min |
| Aug 1, 9:49 PM CDT | Special Weather Statement | ARX | Clayton | 56 min |
| Aug 1, 10:52 PM CDT | Special Weather Statement | DVN | Dubuque | 38 min |
| Aug 1, 11:26 PM CDT | Special Weather Statement | DVN | Jackson | 34 min |
| Aug 2, 12:25 AM CDT | Special Weather Statement | DVN | Keokuk | 35 min |
| Aug 2, 12:44 AM CDT | Special Weather Statement | DMX | Wapello | 46 min |
| Aug 2, 1:08 AM CDT | Special Weather Statement | DMX | Wapello | 37 min |
| Aug 5, 1:00 AM CDT | Severe Thunderstorm Watch | SPC | Buena Vista, Cherokee, Clay, Dickinson, Ida, Lyon and 5 more | 4 hr |
| Aug 5, 1:54 AM CDT | Severe Thunderstorm Warning | FSD | Lyon, Sioux | 51 min |
| Aug 5, 2:25 AM CDT | Severe Thunderstorm Warning | FSD | Plymouth, Sioux | 50 min |
| Aug 5, 2:41 AM CDT | Severe Thunderstorm Warning | FSD | Lyon, Sioux | 49 min |
| Aug 5, 3:06 AM CDT | Severe Thunderstorm Warning | FSD | Cherokee, O'Brien, Osceola, Plymouth | 39 min |
| Aug 5, 3:20 AM CDT | Severe Thunderstorm Warning | FSD | Plymouth | 25 min |
| Aug 5, 3:33 AM CDT | Severe Thunderstorm Warning | FSD | Buena Vista, Clay, Ida | 57 min |
| Aug 5, 3:36 AM CDT | Severe Thunderstorm Warning | FSD | Woodbury | 54 min |
| Aug 5, 3:46 AM CDT | Mesoscale Discussion | SPC | Buena Vista, Calhoun, Cherokee, Clay, Dickinson, Emmet and 11 more | 89 min |
| Aug 5, 3:53 AM CDT | Severe Thunderstorm Warning | DMX | Calhoun, Palo Alto, Pocahontas, Sac | 67 min |
| Aug 5, 4:09 AM CDT | Special Weather Statement | OAX | Monona | 21 min |
| Aug 5, 4:10 AM CDT | Severe Thunderstorm Watch | SPC | Boone, Calhoun, Carroll, Cerro Gordo, Crawford, Emmet and 15 more | 3 hr |
| Aug 5, 4:24 AM CDT | Severe Thunderstorm Warning | DMX | Calhoun, Hamilton, Hancock, Humboldt, Kossuth, Webster and 1 more | 66 min |
| Aug 5, 5:10 AM CDT | Special Weather Statement | DMX | Audubon, Boone, Carroll, Greene | 50 min |
| Aug 5, 5:41 AM CDT | Special Weather Statement | DMX | Jasper, Marshall, Polk, Story | 34 min |
| Aug 5, 6:08 AM CDT | Special Weather Statement | DMX | Black Hawk, Bremer, Tama | 37 min |
| Aug 5, 6:24 AM CDT | Special Weather Statement | DVN | Benton, Buchanan, Delaware, Linn | 81 min |
| Aug 5, 6:28 AM CDT | Special Weather Statement | DMX | Jasper, Madison, Mahaska, Marion, Poweshiek, Warren | 62 min |
| Aug 5, 7:19 AM CDT | Special Weather Statement | DMX | Appanoose, Davis, Monroe, Wapello | 56 min |
| Aug 5, 8:41 AM CDT | Special Weather Statement | DMX | Calhoun, Humboldt, Palo Alto, Pocahontas, Webster, Wright | 64 min |
| Aug 5, 9:23 AM CDT | Special Weather Statement | DMX | Butler, Franklin, Grundy, Hamilton, Hardin, Wright | 52 min |
| Aug 5, 9:36 AM CDT | Severe Thunderstorm Warning | DMX | Butler, Franklin, Grundy, Hamilton, Hardin, Wright | 39 min |
| Aug 5, 10:15 AM CDT | Special Weather Statement | DMX | Black Hawk, Boone, Grundy, Hardin, Jasper, Marshall and 3 more | 60 min |
| Aug 5, 3:48 PM CDT | Special Weather Statement | ARX | Chickasaw, Clayton, Fayette, Floyd | 72 min |
| Aug 5, 4:45 PM CDT | Special Weather Statement | DVN | Buchanan | 45 min |
| Aug 5, 4:59 PM CDT | Special Weather Statement | DVN | Buchanan, Delaware | 46 min |
| Aug 5, 5:07 PM CDT | Severe Thunderstorm Warning | DVN | Benton, Buchanan, Delaware, Jones, Linn | 38 min |
| Aug 5, 5:31 PM CDT | Special Weather Statement | DMX | Poweshiek | 59 min |
| Aug 5, 5:42 PM CDT | Severe Thunderstorm Warning | DMX | Jasper, Poweshiek, Tama | 48 min |
| Aug 5, 5:44 PM CDT | Mesoscale Discussion | SPC | Benton, Cedar, Clinton, Delaware, Dubuque, Iowa and 13 more | 2 hr |
| Aug 5, 5:58 PM CDT | Special Weather Statement | DVN | Dubuque | 47 min |
| Aug 5, 6:10 PM CDT | Severe Thunderstorm Warning | DVN | Dubuque, Jackson, Jones | 50 min |
| Aug 5, 6:15 PM CDT | Special Weather Statement | ARX | Dubuque | 30 min |
| Aug 5, 6:45 PM CDT | Severe Thunderstorm Warning | DVN | Dubuque, Jackson | 45 min |
| Aug 5, 7:37 PM CDT | Special Weather Statement | DVN | Johnson | 38 min |
| Aug 5, 7:39 PM CDT | Special Weather Statement | DVN | Buchanan, Delaware | 36 min |
| Aug 5, 7:48 PM CDT | Special Weather Statement | DMX | Grundy | 27 min |
| Aug 5, 9:17 PM CDT | Severe Thunderstorm Warning | DMX | Calhoun, Humboldt, Pocahontas, Webster | 43 min |
| Aug 5, 9:21 PM CDT | Special Weather Statement | DVN | Buchanan, Delaware | 39 min |
| Aug 5, 9:32 PM CDT | Mesoscale Discussion | SPC | Adair, Adams, Audubon, Boone, Butler, Calhoun and 29 more | 2 hr |
| Aug 5, 9:48 PM CDT | Severe Thunderstorm Warning | DMX | Hamilton, Webster, Wright | 57 min |
| Aug 5, 10:08 PM CDT | Special Weather Statement | ARX | Clayton, Fayette | 52 min |
| Aug 5, 10:11 PM CDT | Special Weather Statement | DVN | Dubuque, Jackson | 49 min |
| Aug 5, 10:20 PM CDT | Severe Thunderstorm Warning | DVN | Dubuque, Jackson, Jones | 55 min |
| Aug 5, 10:40 PM CDT | Severe Thunderstorm Warning | DMX | Franklin, Hamilton, Hardin, Wright | 53 min |
| Aug 5, 10:49 PM CDT | Special Weather Statement | DMX | Bremer, Butler | 56 min |
| Aug 5, 11:24 PM CDT | Special Weather Statement | DMX | Black Hawk, Bremer, Butler, Grundy, Tama | 66 min |
| Aug 5, 11:27 PM CDT | Special Weather Statement | ARX | Clayton, Fayette | 63 min |
| Aug 5, 11:33 PM CDT | Areal Flood Advisory | ARX | Fayette | 117 min |
| Aug 5, 11:33 PM CDT | Severe Thunderstorm Warning | DMX | Calhoun, Carroll, Crawford, Sac | 42 min |
| Aug 6, 12:18 AM CDT | Special Weather Statement | OAX | Monona | 27 min |
| Aug 6, 12:21 AM CDT | Special Weather Statement | DVN | Benton | 39 min |
| Aug 6, 12:38 AM CDT | Special Weather Statement | DVN | Buchanan, Delaware | 82 min |
| Aug 6, 2:01 AM CDT | Flash Flood Warning | DVN | Buchanan, Delaware | 5 hr |
| Aug 6, 2:21 AM CDT | Special Weather Statement | OAX | Harrison | 24 min |
| Aug 6, 2:55 AM CDT | Special Weather Statement | DMX | Bremer | 50 min |
| Aug 6, 5:20 AM CDT | Special Weather Statement | DVN | Dubuque | 85 min |
| Aug 6, 2:31 PM CDT | Mesoscale Discussion | SPC | Harrison, Mills, Pottawattamie | 89 min |
| Aug 6, 6:10 PM CDT | Severe Thunderstorm Warning | OAX | Fremont | 35 min |
| Aug 6, 6:23 PM CDT | Special Weather Statement | DMX | Union | 67 min |
| Aug 6, 6:38 PM CDT | Mesoscale Discussion | SPC | Adams, Appanoose, Clarke, Davis, Decatur, Fremont and 11 more | 2 hr |
| Aug 6, 6:40 PM CDT | Severe Thunderstorm Warning | OAX | Fremont, Page | 50 min |
| Aug 6, 6:49 PM CDT | Special Weather Statement | DVN | Lee, Van Buren | 26 min |
| Aug 6, 7:12 PM CDT | Special Weather Statement | DMX | Decatur | 33 min |
| Aug 6, 8:45 PM CDT | Special Weather Statement | DMX | Appanoose, Davis, Wayne | 60 min |
| Aug 6, 10:00 PM CDT | Special Weather Statement | DVN | Henry, Jefferson, Van Buren | 45 min |
| Aug 6, 10:11 PM CDT | Severe Thunderstorm Warning | DVN | Henry, Jefferson | 37 min |
| Aug 7, 2:58 AM CDT | Special Weather Statement | DMX | Crawford | 47 min |
| Aug 7, 3:29 AM CDT | Special Weather Statement | DMX | Carroll | 46 min |
| Aug 7, 3:45 AM CDT | Severe Thunderstorm Warning | DMX | Calhoun, Carroll, Greene | 45 min |
| Aug 7, 1:28 PM CDT | Special Weather Statement | DVN | Jones | 17 min |
| Aug 7, 2:27 PM CDT | Special Weather Statement | ARX | Howard | 33 min |
| Aug 7, 2:43 PM CDT | Severe Thunderstorm Warning | ARX | Howard | 47 min |
| Aug 7, 3:36 PM CDT | Special Weather Statement | ARX | Winneshiek | 54 min |
| Aug 7, 3:53 PM CDT | Severe Thunderstorm Warning | ARX | Winneshiek | 33 min |
| Aug 7, 4:41 PM CDT | Special Weather Statement | DMX | Tama | 49 min |
| Aug 7, 4:49 PM CDT | Special Weather Statement | DMX | Humboldt | 41 min |
| Aug 7, 5:13 PM CDT | Special Weather Statement | DVN | Benton | 32 min |
| Aug 7, 5:21 PM CDT | Special Weather Statement | DVN | Van Buren | 39 min |
| Aug 7, 5:51 PM CDT | Special Weather Statement | DVN | Benton, Linn | 54 min |
| Aug 7, 7:05 PM CDT | Special Weather Statement | DVN | Johnson | 55 min |
| Aug 8, 1:03 AM CDT | Dense Fog Advisory | ARX | Allamakee, Chickasaw, Clayton, Fayette, Floyd, Howard and 2 more | 8 hr |
| Aug 8, 4:07 AM CDT | Dense Fog Advisory | DVN | Benton, Buchanan, Cedar, Clinton, Delaware, Dubuque and 7 more | 5 hr |
| Aug 8, 4:23 AM CDT | Dense Fog Advisory | DMX | Black Hawk, Bremer, Butler, Cerro Gordo, Franklin, Grundy and 8 more | 5 hr |
| Aug 15, 4:20 PM CDT | Special Weather Statement | DVN | Benton, Delaware, Dubuque, Jackson, Jones, Linn | 115 min |
| Aug 15, 7:00 PM CDT | Special Weather Statement | DVN | Iowa, Linn | 30 min |
| Aug 15, 7:33 PM CDT | Special Weather Statement | DVN | Iowa | 27 min |
| Aug 15, 7:56 PM CDT | Special Weather Statement | DVN | Iowa | 34 min |
| Aug 16, 1:01 AM CDT | Special Weather Statement | DMX | Emmet | 59 min |
| Aug 16, 3:00 AM CDT | Dense Fog Advisory | DVN | Benton, Buchanan, Cedar, Clinton, Delaware, Des Moines and 15 more | 6 hr |
| Aug 16, 12:28 PM CDT | Special Weather Statement | DMX | Story | 62 min |
| Aug 16, 3:43 PM CDT | Special Weather Statement | DVN | Dubuque | 92 min |
| Aug 16, 3:56 PM CDT | Special Weather Statement | DVN | Jefferson | 79 min |
| Aug 16, 4:03 PM CDT | Special Weather Statement | DVN | Buchanan | 117 min |
| Aug 16, 4:06 PM CDT | Special Weather Statement | DVN | Van Buren | 54 min |
| Aug 16, 4:41 PM CDT | Special Weather Statement | OAX | Monona | 34 min |
| Aug 16, 5:33 PM CDT | Special Weather Statement | DVN | Dubuque | 117 min |
| Aug 16, 6:07 PM CDT | Tornado Warning | DVN | Clinton, Jackson, Jones | 16 min |
| Aug 16, 7:04 PM CDT | Special Weather Statement | DVN | Scott | 26 min |
| Aug 16, 10:22 PM CDT | Special Weather Statement | DVN | Van Buren | 53 min |
| Aug 16, 10:54 PM CDT | Special Weather Statement | DVN | Van Buren | 51 min |
| Aug 17, 6:41 AM CDT | Dense Fog Advisory | DVN | Muscatine, Scott | 2 hr |
| Aug 17, 4:28 PM CDT | Special Weather Statement | ARX | Allamakee | 17 min |
| Aug 19, 2:00 PM CDT | Flash Flood Watch | OAX | Fremont, Harrison, Mills, Monona, Montgomery, Page and 2 more | 25 hr |
| Aug 19, 11:57 PM CDT | River Flood Warning | OAX | Fremont | 4 days |
| Aug 20, 5:07 AM CDT | Flash Flood Warning | OAX | Harrison, Pottawattamie, Shelby | 6 hr |
| Aug 20, 8:06 AM CDT | Flash Flood Warning | OAX | Pottawattamie | 6 hr |
| Aug 20, 8:54 AM CDT | Areal Flood Warning | OAX | Harrison, Mills, Monona, Montgomery, Pottawattamie, Shelby | 15 hr |
| Aug 20, 10:15 AM CDT | Flash Flood Warning | OAX | Mills, Pottawattamie | 4 hr |
| Aug 20, 10:28 AM CDT | River Flood Warning | OAX | Mills | 3 days |
| Aug 20, 11:22 AM CDT | River Flood Advisory | OAX | Pottawattamie | 51 hr |
| Aug 20, 1:48 PM CDT | Areal Flood Warning | OAX | Mills, Pottawattamie | 9 hr |
| Aug 20, 3:50 PM CDT | Tornado Warning | DVN | Clinton, Jackson | 40 min |
| Aug 20, 4:46 PM CDT | Mesoscale Discussion | SPC | Dubuque, Jackson | 119 min |
| Aug 20, 5:23 PM CDT | River Flood Warning | OAX | Fremont | 28 hr |
| Aug 20, 5:27 PM CDT | Special Weather Statement | DVN | Jones | 93 min |
| Aug 20, 8:42 PM CDT | River Flood Watch | DMX | Dallas, Greene | 48 hr |
| Aug 21, 5:42 AM CDT | Areal Flood Advisory | OAX | Fremont | 7 hr |
| Aug 21, 5:45 AM CDT | River Flood Advisory | OAX | Harrison | 18 hr |
| Aug 24, 8:13 AM CDT | Special Weather Statement | OAX | Monona | 32 min |
| Aug 24, 8:38 AM CDT | Special Weather Statement | DMX | Crawford | 52 min |
| Aug 24, 9:55 AM CDT | Special Weather Statement | DMX | Greene | 35 min |
| Aug 24, 11:13 AM CDT | Special Weather Statement | OAX | Mills | 32 min |
| Aug 24, 3:07 PM CDT | Mesoscale Discussion | SPC | Clay, Emmet, Kossuth, Palo Alto, Winnebago, Worth | 113 min |
| Aug 24, 4:29 PM CDT | Special Weather Statement | DMX | Kossuth | 61 min |
| Aug 24, 4:48 PM CDT | Severe Thunderstorm Warning | DMX | Kossuth, Winnebago | 42 min |
| Aug 24, 5:20 PM CDT | Severe Thunderstorm Warning | DMX | Hancock, Kossuth, Winnebago | 40 min |
| Aug 24, 6:11 PM CDT | Severe Thunderstorm Warning | DMX | Cerro Gordo, Hancock | 49 min |
| Aug 24, 6:22 PM CDT | Special Weather Statement | DMX | Worth | 53 min |
| Aug 24, 6:33 PM CDT | Tornado Warning | DMX | Cerro Gordo, Hancock | 27 min |
| Aug 24, 6:46 PM CDT | Special Weather Statement | ARX | Floyd | 89 min |
| Aug 24, 6:58 PM CDT | Severe Thunderstorm Warning | DMX | Cerro Gordo, Franklin | 47 min |
| Aug 24, 7:02 PM CDT | Severe Thunderstorm Warning | ARX | Floyd | 58 min |
| Aug 24, 7:02 PM CDT | Mesoscale Discussion | SPC | Bremer, Butler, Cerro Gordo, Chickasaw, Floyd, Franklin and 4 more | 118 min |
| Aug 24, 10:33 PM CDT | Special Weather Statement | DVN | Benton, Linn | 87 min |
| Aug 24, 10:43 PM CDT | Special Weather Statement | DVN | Cedar, Clinton, Iowa | 92 min |
| Aug 24, 11:24 PM CDT | Special Weather Statement | DVN | Johnson, Keokuk | 36 min |
| Aug 25, 12:05 AM CDT | Special Weather Statement | DVN | Muscatine, Washington | 25 min |
| Aug 25, 12:38 AM CDT | Special Weather Statement | DVN | Louisa, Muscatine | 37 min |
| Aug 25, 3:19 AM CDT | Dense Fog Advisory | DMX | Adair, Adams, Audubon, Black Hawk, Boone, Bremer and 29 more | 6 hr |
| Aug 25, 3:24 AM CDT | Dense Fog Advisory | OAX | Fremont, Harrison, Mills, Montgomery, Page, Pottawattamie and 1 more | 6 hr |
| Aug 25, 4:03 AM CDT | Dense Fog Advisory | DVN | Benton, Buchanan, Cedar, Delaware, Dubuque, Iowa and 6 more | 6 hr |
| Aug 25, 4:04 AM CDT | Dense Fog Advisory | ARX | Chickasaw, Clayton, Fayette, Floyd | 5 hr |
| Aug 25, 1:41 PM CDT | Heat Advisory | DVN | Des Moines, Henry, Jefferson, Keokuk, Lee, Louisa and 4 more | 5 hr |
| Aug 26, 3:03 AM CDT | Heat Advisory | DVN | Cedar, Clinton, Des Moines, Henry, Jackson, Jefferson and 8 more | 64 hr |
| Aug 26, 9:53 AM CDT | Mesoscale Discussion | SPC | Adair, Adams, Audubon, Boone, Buena Vista, Calhoun and 40 more | 2 hr |
| Aug 26, 10:19 AM CDT | Severe Thunderstorm Warning | FSD | Buena Vista, Cherokee, Ida | 41 min |
| Aug 26, 5:19 PM CDT | Special Weather Statement | DVN | Henry, Lee | 56 min |
| Aug 26, 6:06 PM CDT | Special Weather Statement | DVN | Des Moines, Lee | 54 min |
| Aug 26, 9:44 PM CDT | Severe Thunderstorm Warning | DMX | Calhoun, Humboldt, Pocahontas, Webster | 31 min |
| Aug 26, 9:49 PM CDT | Severe Thunderstorm Warning | DMX | Calhoun, Pocahontas, Sac | 26 min |
| Aug 26, 10:14 PM CDT | Special Weather Statement | OAX | Mills | 31 min |
| Aug 26, 10:23 PM CDT | Special Weather Statement | DMX | Calhoun, Cerro Gordo, Franklin, Humboldt, Pocahontas, Wright | 52 min |
| Aug 26, 10:24 PM CDT | Special Weather Statement | ARX | Floyd | 66 min |
| Aug 26, 10:40 PM CDT | Severe Thunderstorm Warning | DMX | Hamilton, Humboldt, Webster, Wright | 35 min |
| Aug 26, 10:43 PM CDT | Special Weather Statement | OAX | Mills | 32 min |
| Aug 26, 10:50 PM CDT | Special Weather Statement | OAX | Pottawattamie | 40 min |
| Aug 26, 11:12 PM CDT | Special Weather Statement | OAX | Montgomery | 48 min |
| Aug 26, 11:20 PM CDT | Special Weather Statement | DMX | Butler, Franklin, Wright | 55 min |
| Aug 26, 11:27 PM CDT | Special Weather Statement | OAX | Pottawattamie | 18 min |
| Aug 26, 11:41 PM CDT | Special Weather Statement | ARX | Chickasaw, Floyd | 49 min |
| Aug 27, 12:01 AM CDT | Special Weather Statement | DMX | Adair, Adams, Guthrie | 59 min |
| Aug 27, 12:11 AM CDT | Special Weather Statement | DMX | Bremer, Butler, Franklin | 79 min |
| Aug 27, 11:33 AM CDT | Flash Flood Watch | ARX | Allamakee, Chickasaw, Clayton, Fayette, Floyd, Howard and 2 more | 33 hr |
| Aug 27, 11:49 AM CDT | Mesoscale Discussion | SPC | Buena Vista, Cherokee, Clay, Dickinson, Emmet, Ida and 11 more | 116 min |
| Aug 27, 2:24 PM CDT | Severe Thunderstorm Warning | FSD | Plymouth | 36 min |
| Aug 27, 2:24 PM CDT | Mesoscale Discussion | SPC | Allamakee, Bremer, Buena Vista, Butler, Calhoun, Cerro Gordo and 21 more | 96 min |
| Aug 27, 2:51 PM CDT | Severe Thunderstorm Warning | FSD | Cherokee, Plymouth, Sioux | 39 min |
| Aug 27, 2:57 PM CDT | Severe Thunderstorm Watch | SPC | Buena Vista, Cerro Gordo, Cherokee, Clay, Dickinson, Emmet and 14 more | 7 hr |
| Aug 27, 3:27 PM CDT | Severe Thunderstorm Warning | FSD | Clay, Dickinson, O'Brien | 33 min |
| Aug 27, 3:30 PM CDT | Severe Thunderstorm Warning | FSD | Cherokee, O'Brien, Plymouth, Sioux | 30 min |
| Aug 27, 3:51 PM CDT | Severe Thunderstorm Warning | FSD | Clay, Dickinson, O'Brien, Osceola | 24 min |
| Aug 27, 3:57 PM CDT | Severe Thunderstorm Warning | FSD | Dickinson | 18 min |
| Aug 27, 4:09 PM CDT | Severe Thunderstorm Warning | FSD | Clay, Dickinson, O'Brien, Osceola | 20 min |
| Aug 27, 4:27 PM CDT | Flash Flood Warning | FSD | Dickinson | 85 min |
| Aug 27, 4:30 PM CDT | Severe Thunderstorm Warning | DMX | Hancock, Kossuth, Winnebago | 45 min |
| Aug 27, 5:14 PM CDT | Severe Thunderstorm Warning | DMX | Winnebago, Worth | 46 min |
| Aug 28, 3:12 AM CDT | Mesoscale Discussion | SPC | Cherokee, Clay, Dickinson, Emmet, Lyon, O'Brien and 3 more | 3 hr |
| Aug 28, 3:48 AM CDT | Severe Thunderstorm Warning | FSD | Lyon, Sioux | 42 min |
| Aug 28, 4:35 AM CDT | Severe Thunderstorm Warning | FSD | Lyon, O'Brien, Osceola, Sioux | 40 min |
| Aug 28, 5:11 AM CDT | Severe Thunderstorm Warning | FSD | O'Brien, Sioux | 49 min |
| Aug 28, 5:50 AM CDT | Severe Thunderstorm Warning | FSD | Clay, O'Brien | 40 min |
| Aug 28, 6:19 AM CDT | Severe Thunderstorm Warning | FSD | Buena Vista, Cherokee, Clay | 41 min |
| Aug 28, 6:21 AM CDT | Severe Thunderstorm Warning | DMX | Palo Alto, Pocahontas | 54 min |
| Aug 28, 6:56 AM CDT | Special Weather Statement | DMX | Pocahontas | 34 min |
| Aug 28, 7:08 AM CDT | Severe Thunderstorm Warning | DMX | Hancock, Humboldt, Kossuth, Palo Alto, Pocahontas, Wright | 45 min |
| Aug 28, 7:44 AM CDT | Severe Thunderstorm Warning | DMX | Cerro Gordo, Franklin, Hancock, Humboldt, Kossuth, Winnebago and 2 more | 46 min |
| Aug 28, 7:50 AM CDT | Mesoscale Discussion | SPC | Allamakee, Black Hawk, Bremer, Butler, Cerro Gordo, Chickasaw and 15 more | 115 min |
| Aug 28, 8:04 AM CDT | Special Weather Statement | ARX | Chickasaw, Floyd, Howard | 86 min |
| Aug 28, 8:07 AM CDT | Severe Thunderstorm Warning | DMX | Butler, Cerro Gordo, Franklin, Worth | 38 min |
| Aug 28, 8:27 AM CDT | Severe Thunderstorm Warning | ARX | Floyd, Mitchell | 48 min |
| Aug 28, 8:44 AM CDT | Severe Thunderstorm Warning | DMX | Butler, Cerro Gordo, Franklin | 16 min |
| Aug 28, 8:50 AM CDT | Severe Thunderstorm Warning | ARX | Chickasaw, Floyd, Howard, Mitchell | 40 min |
| Aug 28, 8:56 AM CDT | Special Weather Statement | DMX | Bremer, Butler | 64 min |
| Aug 28, 9:08 AM CDT | Flash Flood Watch | DVN | Benton, Buchanan, Cedar, Clinton, Delaware, Des Moines and 15 more | 20 hr |
| Aug 28, 9:19 AM CDT | Severe Thunderstorm Warning | ARX | Chickasaw | 26 min |
| Aug 28, 9:34 AM CDT | Severe Thunderstorm Warning | ARX | Fayette, Winneshiek | 41 min |
| Aug 28, 10:08 AM CDT | Severe Thunderstorm Warning | ARX | Allamakee, Clayton | 33 min |
| Aug 28, 10:16 AM CDT | Severe Thunderstorm Warning | ARX | Fayette, Winneshiek | 14 min |
| Aug 28, 11:09 AM CDT | Special Weather Statement | DMX | Madison | 36 min |
| Aug 28, 11:25 AM CDT | Special Weather Statement | DMX | Boone, Story | 50 min |
| Aug 28, 11:27 AM CDT | Special Weather Statement | DMX | Franklin | 48 min |
| Aug 28, 11:34 AM CDT | Severe Thunderstorm Warning | DMX | Boone, Dallas, Hamilton, Story | 41 min |
| Aug 28, 11:41 AM CDT | Special Weather Statement | DMX | Humboldt | 49 min |
| Aug 28, 11:42 AM CDT | Special Weather Statement | ARX | Chickasaw | 33 min |
| Aug 28, 11:50 AM CDT | Special Weather Statement | DMX | Adair, Audubon, Boone, Calhoun, Carroll, Cass and 9 more | 55 min |
| Aug 28, 12:14 PM CDT | Mesoscale Discussion | SPC | Allamakee, Benton, Black Hawk, Boone, Bremer, Buchanan and 21 more | 2 hr |
| Aug 28, 12:15 PM CDT | Severe Thunderstorm Warning | DMX | Humboldt, Kossuth, Webster, Wright | 30 min |
| Aug 28, 12:32 PM CDT | Special Weather Statement | OAX | Pottawattamie | 28 min |
| Aug 28, 12:39 PM CDT | Severe Thunderstorm Warning | DMX | Hancock, Kossuth, Winnebago | 36 min |
| Aug 28, 12:47 PM CDT | Severe Thunderstorm Warning | DMX | Butler, Cerro Gordo, Franklin, Hancock, Wright | 43 min |
| Aug 28, 12:51 PM CDT | Special Weather Statement | DMX | Boone, Calhoun, Carroll, Dallas, Greene, Guthrie and 8 more | 54 min |
| Aug 28, 1:03 PM CDT | Severe Thunderstorm Warning | DMX | Calhoun, Pocahontas, Sac | 42 min |
| Aug 28, 1:14 PM CDT | Severe Thunderstorm Watch | SPC | Allamakee, Black Hawk, Bremer, Buchanan, Butler, Cerro Gordo and 18 more | 8 hr |
| Aug 28, 1:38 PM CDT | Severe Thunderstorm Warning | DMX | Boone, Franklin, Hamilton, Hardin, Story, Webster and 1 more | 52 min |
| Aug 28, 1:47 PM CDT | Special Weather Statement | DMX | Cerro Gordo, Hancock, Humboldt, Kossuth, Winnebago | 43 min |
| Aug 28, 2:16 PM CDT | Special Weather Statement | DVN | Scott | 59 min |
| Aug 28, 2:18 PM CDT | Special Weather Statement | OAX | Mills | 27 min |
| Aug 28, 2:42 PM CDT | Special Weather Statement | OAX | Mills | 33 min |
| Aug 28, 4:34 PM CDT | Severe Thunderstorm Warning | DMX | Mahaska, Marion | 41 min |
| Aug 28, 4:38 PM CDT | Severe Thunderstorm Warning | DMX | Decatur, Wayne | 52 min |
| Aug 28, 4:45 PM CDT | Mesoscale Discussion | SPC | Appanoose, Cedar, Clarke, Davis, Decatur, Des Moines and 21 more | 60 min |
| Aug 28, 4:50 PM CDT | Severe Thunderstorm Warning | DMX | Lucas, Mahaska, Marion, Monroe, Warren, Wayne | 40 min |
| Aug 28, 5:03 PM CDT | Severe Thunderstorm Warning | DMX | Jasper, Mahaska, Poweshiek | 42 min |
| Aug 28, 5:06 PM CDT | Severe Thunderstorm Watch | SPC | Appanoose, Benton, Cedar, Clinton, Davis, Des Moines and 20 more | 6 hr |
| Aug 28, 5:14 PM CDT | Severe Thunderstorm Warning | DVN | Iowa, Johnson, Keokuk, Washington | 61 min |
| Aug 28, 5:17 PM CDT | Severe Thunderstorm Warning | DMX | Mahaska, Monroe, Wapello | 43 min |
| Aug 28, 5:22 PM CDT | Special Weather Statement | DVN | Benton | 53 min |
| Aug 28, 5:30 PM CDT | Severe Thunderstorm Warning | DMX | Appanoose, Lucas, Monroe, Wayne | 45 min |
| Aug 28, 5:40 PM CDT | Tornado Warning | DVN | Iowa | 35 min |
| Aug 28, 5:47 PM CDT | Severe Thunderstorm Warning | DMX | Appanoose, Davis, Monroe, Wapello | 58 min |
| Aug 28, 5:51 PM CDT | Severe Thunderstorm Warning | DVN | Henry, Jefferson, Keokuk, Van Buren, Washington | 39 min |
| Aug 28, 5:59 PM CDT | Severe Thunderstorm Warning | DVN | Cedar, Johnson, Louisa, Muscatine, Washington | 61 min |
| Aug 28, 6:02 PM CDT | Tornado Warning | DVN | Iowa, Johnson | 28 min |
| Aug 28, 6:07 PM CDT | Mesoscale Discussion | SPC | Cedar, Iowa, Johnson, Keokuk, Muscatine, Washington | 53 min |
| Aug 28, 6:18 PM CDT | Severe Thunderstorm Warning | DVN | Henry, Louisa, Washington | 42 min |
| Aug 28, 6:24 PM CDT | Special Weather Statement | DVN | Jones, Linn | 36 min |
| Aug 28, 6:37 PM CDT | Severe Thunderstorm Warning | DVN | Cedar, Clinton, Jackson, Johnson, Jones, Linn | 38 min |
| Aug 28, 6:41 PM CDT | Severe Thunderstorm Warning | DVN | Cedar, Clinton, Muscatine, Scott | 64 min |
| Aug 28, 6:43 PM CDT | Severe Thunderstorm Warning | DMX | Davis, Wapello | 47 min |
| Aug 28, 7:00 PM CDT | Severe Thunderstorm Warning | DVN | Clinton, Jackson | 60 min |
| Aug 28, 7:08 PM CDT | Tornado Warning | DVN | Clinton, Scott | 31 min |
| Aug 28, 8:20 PM CDT | Severe Thunderstorm Warning | DVN | Des Moines, Henry, Lee, Van Buren | 40 min |
| Aug 28, 8:26 PM CDT | Severe Thunderstorm Warning | DVN | Des Moines, Henry, Louisa | 49 min |
| Aug 28, 9:47 PM CDT | River Flood Warning | ARX | Winneshiek | 34 hr |
| Aug 28, 11:37 PM CDT | Special Weather Statement | DMX | Wapello | 53 min |
| Aug 28, 11:43 PM CDT | Special Weather Statement | DMX | Appanoose | 32 min |
| Aug 31, 1:10 AM CDT | Mesoscale Discussion | SPC | Adair, Adams, Audubon, Boone, Buena Vista, Calhoun and 38 more | 3 hr |
| Aug 31, 3:44 AM CDT | Special Weather Statement | OAX | Page | 31 min |
| Aug 31, 3:48 AM CDT | Severe Thunderstorm Warning | DMX | Taylor | 42 min |
| Aug 31, 4:25 AM CDT | Severe Thunderstorm Warning | DMX | Taylor | 50 min |
| Aug 31, 4:37 AM CDT | Special Weather Statement | DMX | Guthrie | 23 min |
| Aug 31, 4:55 AM CDT | Severe Thunderstorm Warning | DMX | Adair, Dallas, Guthrie, Madison | 39 min |
| Aug 31, 6:26 AM CDT | Special Weather Statement | DMX | Marshall | 19 min |
| Aug 31, 6:42 AM CDT | Special Weather Statement | DMX | Grundy | 33 min |
| Aug 31, 3:07 PM CDT | Flash Flood Watch | ARX | Allamakee, Clayton | 23 hr |
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 | 95 |
| Tornado Warning | 6 |
| Severe Thunderstorm Watch | 5 |
| Mesoscale Discussion | 18 |
| Special Weather Statement | 123 |
| Flooding | |
| Areal Flood Warning | 2 |
| Flash Flood Warning | 5 |
| River Flood Warning | 4 |
| Flash Flood Watch | 4 |
| River Flood Watch | 1 |
| Areal Flood Advisory | 2 |
| River Flood Advisory | 2 |
| Heat | |
| Heat Advisory | 2 |
| Fog and smoke | |
| Dense Fog Advisory | 9 |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Wright County24
- Franklin County23
- Hancock County21
- Humboldt County21
- Hamilton County20
- Dubuque County20
- Buchanan County19
- Butler County19
- Jackson County19
- Cerro Gordo County18
- Webster County18
- Hardin County18
- Story County18
- Calhoun County18
- Kossuth County18
- Pocahontas County18
- Chickasaw County16
- Floyd County16
- Benton County16
- Boone County16
- Delaware County16
- Linn County16
- Jones County16
- Johnson County16
- Clay County15
- Winnebago County15
- Iowa County15
- Mills County15
- Pottawattamie County15
- Van Buren County15
- Greene County14
- Bremer County14
- Fayette County14
- O'Brien County14
- Muscatine County14
- Washington County14
- Winneshiek County13
- Guthrie County13
- Clayton County13
- Dallas County13
59 more counties
- Grundy County13
- Jasper County13
- Keokuk County13
- Worth County13
- Cedar County13
- Clinton County13
- Henry County13
- Howard County12
- Tama County12
- Dickinson County12
- Plymouth County12
- Sioux County12
- Palo Alto County12
- Sac County12
- Scott County12
- Mitchell County11
- Carroll County11
- Cherokee County11
- Emmet County11
- Louisa County11
- Allamakee County10
- Marshall County10
- Polk County10
- Wapello County10
- Buena Vista County10
- Monona County10
- Poweshiek County10
- Harrison County10
- Lee County10
- Jefferson County10
- Black Hawk County9
- Ida County9
- Osceola County9
- Mahaska County9
- Monroe County9
- Fremont County9
- Des Moines County9
- Lyon County8
- Crawford County8
- Madison County8
- Marion County8
- Warren County8
- Appanoose County8
- Lucas County8
- Davis County7
- Adair County7
- Montgomery County7
- Shelby County7
- Union County7
- Wayne County7
- Audubon County6
- Adams County6
- Page County6
- Taylor County6
- Woodbury County5
- Cass County5
- Clarke County5
- Decatur County5
- Ringgold County3
Nearby
Alerts in force nowTornadoes on recordThe radar archive20172019
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.