Alert archive / Iowa / Severe Thunderstorm Warnings
Severe Thunderstorm Warnings in Iowa, 2010
684 severe thunderstorm warnings in 2010. 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 severe thunderstorm warnings reaches back to 1986.
Severe Thunderstorm Warnings by county
Each county as a circle sized by its count in 2010. Tap one for its archive.
- Severe Thunderstorm Warnings
- 684
- Busiest month
- June283 severe thunderstorm warnings
- Busiest day
- June 18, 201080 severe thunderstorm warnings
Over time
By month
Warning verification
How often warnings here had a storm report inside them, and how much warning the reports had.
402 of 685 severe thunderstorm warnings covering Iowa in 2010 had a qualifying storm report inside them; 773 of 949 hail, wind and damage reports fell inside a warning, on average 23 minutes after it went out.
Iowa, 2010
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| Severe thunderstorm warnings | 685 | 402 | 41% | 949 | 81% | 23 min |
Each office's whole area, 2010
| Warnings | With a report | False alarm ratio | Reports | Inside a warning | Mean lead time | |
|---|---|---|---|---|---|---|
| NWS Des Moines, IA: severe thunderstorm warnings | 361 | 187 | 48% | 501 | 81% | 24 min |
| NWS Quad Cities, IA: severe thunderstorm warnings | 182 | 124 | 32% | 422 | 80% | 24 min |
| NWS Sioux Falls, SD: severe thunderstorm warnings | 320 | 241 | 25% | 508 | 87% | 20 min |
| NWS La Crosse, WI: severe thunderstorm warnings | 114 | 81 | 29% | 225 | 71% | 23 min |
| NWS Omaha, NE: severe thunderstorm warnings | 294 | 173 | 41% | 376 | 87% | 19 min |
An office's figures cover every county it serves, including across state lines.
Verified by the Iowa Environmental Mesonet's Cow, which matches each storm-based warning with the local storm reports inside its polygon while it was in force, within 15 km of its edge: a tornado warning counts as verified on a tornado report, a severe thunderstorm warning on hail of 1 inch or more, a gust of 58 mph or more, or wind damage, a flash flood warning on a flash flood report. The false alarm ratio is the share of warnings with no such report; "inside a warning" is the probability of detection, the share of reports that fell inside one; lead time runs from the warning's issue to each report inside it, counting zero for a report that came first. A warning with no report is not proof nothing happened: reports come from spotters, the public and damage surveys, and are thin where few people live.
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 |
|---|---|---|---|---|
| Apr 2, 11:10 AM CDT | Severe Thunderstorm Warning | DMX | Appanoose, Clarke, Decatur, Lucas, Monroe, Wayne | 35 min |
| Apr 2, 11:20 AM CDT | Severe Thunderstorm Warning | DMX | Clarke, Lucas, Marion, Warren | 40 min |
| Apr 2, 11:38 AM CDT | Severe Thunderstorm Warning | DMX | Jasper, Marshall, Polk, Story | 22 min |
| Apr 2, 11:44 AM CDT | Severe Thunderstorm Warning | DMX | Jasper, Lucas, Mahaska, Marion, Monroe, Polk and 1 more | 31 min |
| Apr 2, 12:40 PM CDT | Severe Thunderstorm Warning | DMX | Black Hawk, Bremer, Tama | 35 min |
| Apr 2, 12:46 PM CDT | Severe Thunderstorm Warning | DVN | Benton, Buchanan, Linn | 44 min |
| Apr 2, 12:53 PM CDT | Severe Thunderstorm Warning | ARX | Fayette | 37 min |
| Apr 2, 1:31 PM CDT | Severe Thunderstorm Warning | ARX | Allamakee, Clayton, Fayette, Winneshiek | 37 min |
| Apr 4, 3:16 PM CDT | Severe Thunderstorm Warning | DVN | Des Moines, Louisa | 45 min |
| Apr 4, 4:49 PM CDT | Severe Thunderstorm Warning | DMX | Wapello | 26 min |
| Apr 4, 5:00 PM CDT | Severe Thunderstorm Warning | DVN | Lee, Van Buren | 44 min |
| Apr 4, 5:05 PM CDT | Severe Thunderstorm Warning | DVN | Jefferson, Keokuk, Washington | 40 min |
| Apr 4, 5:39 PM CDT | Severe Thunderstorm Warning | DVN | Lee | 56 min |
| Apr 4, 6:06 PM CDT | Severe Thunderstorm Warning | DVN | Clinton, Scott | 54 min |
| Apr 4, 7:32 PM CDT | Severe Thunderstorm Warning | DVN | Johnson, Louisa, Muscatine | 47 min |
| Apr 4, 7:52 PM CDT | Severe Thunderstorm Warning | DVN | Muscatine, Scott | 44 min |
| Apr 5, 11:37 AM CDT | Severe Thunderstorm Warning | DMX | Clarke, Decatur, Lucas | 38 min |
| Apr 5, 12:12 PM CDT | Severe Thunderstorm Warning | DMX | Lucas, Marion, Warren | 48 min |
| Apr 5, 12:55 PM CDT | Severe Thunderstorm Warning | DMX | Adair, Dallas, Guthrie, Madison | 35 min |
| Apr 5, 1:16 PM CDT | Severe Thunderstorm Warning | DMX | Ringgold, Taylor | 44 min |
| Apr 5, 1:22 PM CDT | Severe Thunderstorm Warning | DMX | Dallas, Jasper, Polk | 38 min |
| Apr 5, 1:50 PM CDT | Severe Thunderstorm Warning | DMX | Ringgold, Taylor, Union | 40 min |
| Apr 5, 1:54 PM CDT | Severe Thunderstorm Warning | DMX | Clarke, Decatur, Ringgold | 51 min |
| Apr 5, 2:22 PM CDT | Severe Thunderstorm Warning | DMX | Clarke, Madison, Union, Warren | 38 min |
| Apr 5, 3:02 PM CDT | Severe Thunderstorm Warning | DMX | Clarke, Lucas, Warren | 38 min |
| Apr 5, 3:28 PM CDT | Severe Thunderstorm Warning | DMX | Lucas, Mahaska, Marion | 47 min |
| Apr 5, 4:10 PM CDT | Severe Thunderstorm Warning | DMX | Mahaska, Marion, Poweshiek | 50 min |
| Apr 5, 4:29 PM CDT | Severe Thunderstorm Warning | DVN | Iowa, Keokuk | 61 min |
| Apr 5, 5:19 PM CDT | Severe Thunderstorm Warning | DVN | Johnson, Linn | 41 min |
| Apr 5, 5:23 PM CDT | Severe Thunderstorm Warning | DMX | Black Hawk, Bremer, Butler, Grundy | 26 min |
| Apr 5, 6:22 PM CDT | Severe Thunderstorm Warning | DVN | Benton, Buchanan, Delaware, Linn | 43 min |
| Apr 5, 6:51 PM CDT | Severe Thunderstorm Warning | DVN | Delaware, Dubuque, Jackson, Jones, Linn | 44 min |
| Apr 5, 10:27 PM CDT | Severe Thunderstorm Warning | DVN | Delaware, Dubuque, Jackson, Jones, Linn | 48 min |
| Apr 5, 10:58 PM CDT | Severe Thunderstorm Warning | DVN | Dubuque, Jackson | 62 min |
| Apr 5, 11:13 PM CDT | Severe Thunderstorm Warning | DVN | Clinton, Jackson | 47 min |
| Apr 5, 11:39 PM CDT | Severe Thunderstorm Warning | DMX | Adair, Cass, Guthrie | 35 min |
| Apr 5, 11:54 PM CDT | Severe Thunderstorm Warning | OAX | Pottawattamie, Shelby | 36 min |
| Apr 6, 12:06 AM CDT | Severe Thunderstorm Warning | DMX | Audubon, Carroll | 39 min |
| Apr 6, 12:09 AM CDT | Severe Thunderstorm Warning | DMX | Audubon, Cass | 36 min |
| Apr 6, 12:33 AM CDT | Severe Thunderstorm Warning | DMX | Guthrie | 42 min |
| Apr 6, 1:03 AM CDT | Severe Thunderstorm Warning | DMX | Crawford | 42 min |
| Apr 6, 1:11 AM CDT | Severe Thunderstorm Warning | OAX | Monona | 19 min |
| Apr 6, 1:25 AM CDT | Severe Thunderstorm Warning | DMX | Boone, Dallas | 50 min |
| Apr 6, 4:15 AM CDT | Severe Thunderstorm Warning | DVN | Cedar, Johnson, Muscatine | 30 min |
| Apr 6, 5:17 AM CDT | Severe Thunderstorm Warning | DVN | Clinton, Scott | 28 min |
| Apr 6, 4:22 PM CDT | Severe Thunderstorm Warning | DVN | Buchanan | 53 min |
| Apr 6, 4:35 PM CDT | Severe Thunderstorm Warning | DMX | Black Hawk, Bremer, Grundy | 40 min |
| Apr 6, 4:51 PM CDT | Severe Thunderstorm Warning | ARX | Clayton, Fayette | 39 min |
| Apr 6, 5:03 PM CDT | Severe Thunderstorm Warning | DMX | Jasper, Lucas, Mahaska, Marion, Warren | 42 min |
| Apr 6, 5:10 PM CDT | Severe Thunderstorm Warning | ARX | Fayette | 65 min |
| Apr 6, 5:11 PM CDT | Severe Thunderstorm Warning | DMX | Black Hawk, Bremer | 34 min |
| Apr 6, 5:15 PM CDT | Severe Thunderstorm Warning | DVN | Buchanan | 60 min |
| Apr 6, 5:32 PM CDT | Severe Thunderstorm Warning | ARX | Clayton, Fayette | 58 min |
| Apr 6, 5:44 PM CDT | Severe Thunderstorm Warning | DMX | Jasper, Mahaska, Poweshiek, Tama | 46 min |
| Apr 6, 5:57 PM CDT | Severe Thunderstorm Warning | DMX | Jasper, Poweshiek, Tama | 48 min |
| Apr 6, 6:01 PM CDT | Severe Thunderstorm Warning | DMX | Jasper, Marion | 26 min |
| Apr 6, 6:06 PM CDT | Severe Thunderstorm Warning | DMX | Warren | 39 min |
| Apr 6, 6:07 PM CDT | Severe Thunderstorm Warning | DVN | Buchanan, Delaware, Dubuque | 34 min |
| Apr 6, 6:13 PM CDT | Severe Thunderstorm Warning | DMX | Clarke, Warren | 32 min |
| Apr 6, 6:18 PM CDT | Severe Thunderstorm Warning | DVN | Benton, Buchanan, Linn | 57 min |
| Apr 6, 6:29 PM CDT | Severe Thunderstorm Warning | DMX | Jasper, Marion, Marshall, Polk, Poweshiek | 46 min |
| Apr 6, 6:31 PM CDT | Severe Thunderstorm Warning | ARX | Clayton | 36 min |
| Apr 6, 6:57 PM CDT | Severe Thunderstorm Warning | DMX | Jasper, Poweshiek | 48 min |
| Apr 6, 7:33 PM CDT | Severe Thunderstorm Warning | DVN | Delaware, Dubuque | 37 min |
| Apr 6, 8:55 PM CDT | Severe Thunderstorm Warning | DVN | Jones, Linn | 35 min |
| Apr 6, 9:13 PM CDT | Severe Thunderstorm Warning | DVN | Cedar, Jones | 29 min |
| Apr 12, 8:10 AM CDT | Severe Thunderstorm Warning | FSD | Buena Vista, Clay | 35 min |
| Apr 12, 10:48 AM CDT | Severe Thunderstorm Warning | FSD | Cherokee | 27 min |
| Apr 12, 11:13 AM CDT | Severe Thunderstorm Warning | FSD | Cherokee | 21 min |
| Apr 12, 11:53 AM CDT | Severe Thunderstorm Warning | DMX | Palo Alto, Pocahontas | 52 min |
| Apr 12, 12:54 PM CDT | Severe Thunderstorm Warning | FSD | Buena Vista, Clay | 36 min |
| Apr 12, 1:26 PM CDT | Severe Thunderstorm Warning | FSD | Buena Vista, Clay | 34 min |
| Apr 12, 1:54 PM CDT | Severe Thunderstorm Warning | FSD | Buena Vista, Clay | 21 min |
| Apr 12, 1:57 PM CDT | Severe Thunderstorm Warning | DMX | Palo Alto, Pocahontas | 48 min |
| Apr 12, 3:07 PM CDT | Severe Thunderstorm Warning | DMX | Kossuth, Palo Alto | 38 min |
| Apr 12, 3:54 PM CDT | Severe Thunderstorm Warning | DMX | Kossuth, Palo Alto | 51 min |
| Apr 12, 4:27 PM CDT | Severe Thunderstorm Warning | DMX | Hancock | 48 min |
| Apr 12, 4:45 PM CDT | Severe Thunderstorm Warning | DMX | Kossuth | 30 min |
| Apr 12, 5:28 PM CDT | Severe Thunderstorm Warning | DMX | Hancock | 62 min |
| Apr 23, 10:39 PM CDT | Severe Thunderstorm Warning | OAX | Fremont, Mills, Montgomery, Page | 36 min |
| Apr 23, 11:35 PM CDT | Severe Thunderstorm Warning | DMX | Adams, Taylor | 40 min |
| Apr 23, 11:43 PM CDT | Severe Thunderstorm Warning | OAX | Harrison, Monona | 14 min |
| Apr 24, 1:18 AM CDT | Severe Thunderstorm Warning | DMX | Dallas, Madison | 42 min |
| Apr 24, 2:52 AM CDT | Severe Thunderstorm Warning | DMX | Adair, Clarke, Madison, Union | 38 min |
| Apr 24, 1:17 PM CDT | Severe Thunderstorm Warning | OAX | Fremont, Mills | 28 min |
| Apr 24, 4:17 PM CDT | Severe Thunderstorm Warning | DMX | Emmet | 13 min |
| Apr 24, 5:19 PM CDT | Severe Thunderstorm Warning | FSD | Lyon | 26 min |
| Apr 24, 5:37 PM CDT | Severe Thunderstorm Warning | FSD | Lyon | 38 min |
| Apr 24, 6:10 PM CDT | Severe Thunderstorm Warning | FSD | Lyon | 35 min |
| Apr 24, 7:11 PM CDT | Severe Thunderstorm Warning | FSD | Sioux | 34 min |
| Apr 29, 7:41 PM CDT | Severe Thunderstorm Warning | DMX | Hancock, Humboldt, Webster, Wright | 34 min |
| Apr 29, 7:42 PM CDT | Severe Thunderstorm Warning | DMX | Hancock, Humboldt, Webster, Wright | 33 min |
| Apr 29, 7:56 PM CDT | Severe Thunderstorm Warning | DMX | Cerro Gordo, Hancock, Worth, Wright | 49 min |
| Apr 29, 8:17 PM CDT | Severe Thunderstorm Warning | DMX | Humboldt, Webster, Wright | 28 min |
| Apr 29, 8:27 PM CDT | Severe Thunderstorm Warning | DMX | Cass | 48 min |
| Apr 29, 8:27 PM CDT | Severe Thunderstorm Warning | OAX | Montgomery, Pottawattamie | 33 min |
| Apr 29, 8:50 PM CDT | Severe Thunderstorm Warning | DMX | Cerro Gordo, Franklin, Hancock, Worth, Wright | 40 min |
| Apr 29, 9:03 PM CDT | Severe Thunderstorm Warning | OAX | Mills, Pottawattamie | 42 min |
| Apr 29, 9:04 PM CDT | Severe Thunderstorm Warning | DMX | Adair, Audubon, Dallas, Greene, Guthrie | 41 min |
| Apr 29, 9:13 PM CDT | Severe Thunderstorm Warning | ARX | Chickasaw, Floyd, Howard, Mitchell | 47 min |
| Apr 29, 9:13 PM CDT | Severe Thunderstorm Warning | DMX | Cerro Gordo | 17 min |
| Apr 29, 9:30 PM CDT | Severe Thunderstorm Warning | ARX | Howard, Mitchell | 34 min |
| Apr 29, 9:48 PM CDT | Severe Thunderstorm Warning | DMX | Audubon, Cass, Guthrie | 57 min |
| Apr 29, 9:51 PM CDT | Severe Thunderstorm Warning | DMX | Boone, Dallas, Greene, Guthrie | 24 min |
| Apr 29, 9:57 PM CDT | Severe Thunderstorm Warning | OAX | Fremont, Mills | 36 min |
| Apr 29, 10:16 PM CDT | Severe Thunderstorm Warning | DMX | Boone, Greene, Hamilton, Webster | 39 min |
| Apr 29, 10:41 PM CDT | Severe Thunderstorm Warning | DMX | Audubon, Cass, Guthrie | 34 min |
| Apr 29, 10:42 PM CDT | Severe Thunderstorm Warning | DMX | Audubon, Carroll, Greene, Guthrie | 33 min |
| Apr 29, 10:55 PM CDT | Severe Thunderstorm Warning | OAX | Fremont, Mills, Pottawattamie | 35 min |
| Apr 29, 11:16 PM CDT | Severe Thunderstorm Warning | DMX | Boone, Greene, Guthrie | 44 min |
| Apr 29, 11:29 PM CDT | Severe Thunderstorm Warning | OAX | Pottawattamie | 31 min |
| Apr 30, 9:59 AM CDT | Severe Thunderstorm Warning | DMX | Clarke, Decatur, Lucas, Wayne | 31 min |
| Apr 30, 10:09 AM CDT | Severe Thunderstorm Warning | DMX | Lucas, Wayne | 36 min |
| Apr 30, 10:28 AM CDT | Severe Thunderstorm Warning | DMX | Clarke, Lucas, Marion, Monroe, Warren | 32 min |
| Apr 30, 11:11 AM CDT | Severe Thunderstorm Warning | DMX | Jasper, Poweshiek, Tama | 34 min |
| Apr 30, 11:35 AM CDT | Severe Thunderstorm Warning | DMX | Appanoose, Davis, Monroe, Wapello | 40 min |
| Apr 30, 11:52 AM CDT | Severe Thunderstorm Warning | DMX | Black Hawk, Bremer, Butler, Grundy, Tama | 38 min |
| Apr 30, 12:09 PM CDT | Severe Thunderstorm Warning | DMX | Davis, Wapello | 36 min |
| Apr 30, 12:16 PM CDT | Severe Thunderstorm Warning | ARX | Chickasaw, Fayette, Howard, Winneshiek | 44 min |
| Apr 30, 12:16 PM CDT | Severe Thunderstorm Warning | DVN | Henry, Jefferson, Lee, Van Buren | 59 min |
| Apr 30, 12:21 PM CDT | Severe Thunderstorm Warning | DMX | Davis | 24 min |
| Apr 30, 12:30 PM CDT | Severe Thunderstorm Warning | DVN | Iowa, Jefferson, Johnson, Keokuk, Washington | 60 min |
| Apr 30, 1:06 PM CDT | Severe Thunderstorm Warning | DVN | Des Moines, Henry, Lee, Louisa, Washington | 54 min |
| Apr 30, 1:24 PM CDT | Severe Thunderstorm Warning | DVN | Cedar, Johnson, Jones, Linn, Louisa, Muscatine | 52 min |
| Apr 30, 1:45 PM CDT | Severe Thunderstorm Warning | DVN | Cedar, Clinton, Jackson, Jones, Muscatine, Scott | 60 min |
| Apr 30, 2:24 PM CDT | Severe Thunderstorm Warning | DVN | Clinton, Dubuque, Jackson | 38 min |
| Apr 30, 3:00 PM CDT | Severe Thunderstorm Warning | DVN | Des Moines, Henry, Lee | 40 min |
| May 2, 2:28 PM CDT | Severe Thunderstorm Warning | DMX | Hardin, Marshall, Story | 31 min |
| May 2, 2:36 PM CDT | Severe Thunderstorm Warning | DMX | Jasper, Polk | 29 min |
| May 12, 1:38 PM CDT | Severe Thunderstorm Warning | DMX | Audubon, Guthrie | 37 min |
| May 12, 2:05 PM CDT | Severe Thunderstorm Warning | DMX | Franklin, Hamilton, Hardin, Wright | 40 min |
| May 12, 2:40 PM CDT | Severe Thunderstorm Warning | DMX | Boone, Greene, Guthrie | 50 min |
| May 12, 3:35 PM CDT | Severe Thunderstorm Warning | DMX | Boone, Hamilton | 40 min |
| May 12, 4:04 PM CDT | Severe Thunderstorm Warning | DVN | Delaware, Dubuque, Jackson, Jones | 41 min |
| May 12, 4:16 PM CDT | Severe Thunderstorm Warning | DMX | Adair, Dallas, Madison | 44 min |
| May 12, 5:06 PM CDT | Severe Thunderstorm Warning | DVN | Delaware, Dubuque | 39 min |
| May 12, 6:03 PM CDT | Severe Thunderstorm Warning | DMX | Jasper, Polk | 28 min |
| May 12, 6:51 PM CDT | Severe Thunderstorm Warning | DMX | Grundy, Marshall, Tama | 24 min |
| May 12, 8:49 PM CDT | Severe Thunderstorm Warning | DVN | Benton, Buchanan, Delaware, Linn | 56 min |
| May 12, 8:55 PM CDT | Severe Thunderstorm Warning | DVN | Buchanan, Delaware | 35 min |
| May 12, 9:45 PM CDT | Severe Thunderstorm Warning | DVN | Lee | 60 min |
| May 12, 10:36 PM CDT | Severe Thunderstorm Warning | DVN | Des Moines, Lee | 54 min |
| May 12, 11:14 PM CDT | Severe Thunderstorm Warning | DVN | Des Moines, Lee | 25 min |
| May 13, 1:07 AM CDT | Severe Thunderstorm Warning | DMX | Appanoose, Wayne | 38 min |
| May 25, 12:04 AM CDT | Severe Thunderstorm Warning | FSD | Lyon, O'Brien, Osceola, Sioux | 41 min |
| May 25, 1:57 PM CDT | Severe Thunderstorm Warning | DVN | Scott | 24 min |
| May 25, 2:52 PM CDT | Severe Thunderstorm Warning | DMX | Audubon, Carroll, Greene, Guthrie | 23 min |
| May 25, 3:00 PM CDT | Severe Thunderstorm Warning | DVN | Muscatine | 60 min |
| May 25, 3:19 PM CDT | Severe Thunderstorm Warning | DMX | Adair, Cass, Guthrie | 41 min |
| May 25, 3:33 PM CDT | Severe Thunderstorm Warning | DMX | Carroll, Greene, Guthrie | 42 min |
| May 25, 3:44 PM CDT | Severe Thunderstorm Warning | DMX | Adair, Guthrie | 46 min |
| May 25, 4:19 PM CDT | Severe Thunderstorm Warning | DMX | Dallas, Greene, Guthrie | 38 min |
| May 25, 5:14 PM CDT | Severe Thunderstorm Warning | DMX | Adair, Adams, Union | 42 min |
| Jun 1, 2:47 PM CDT | Severe Thunderstorm Warning | FSD | Cherokee, Plymouth | 28 min |
| Jun 1, 3:37 PM CDT | Severe Thunderstorm Warning | FSD | Ida, Woodbury | 23 min |
| Jun 1, 4:08 PM CDT | Severe Thunderstorm Warning | DMX | Adams, Ringgold, Taylor, Union | 52 min |
| Jun 1, 4:30 PM CDT | Severe Thunderstorm Warning | DMX | Adams | 30 min |
| Jun 1, 4:57 PM CDT | Severe Thunderstorm Warning | DMX | Hamilton, Webster | 48 min |
| Jun 1, 4:58 PM CDT | Severe Thunderstorm Warning | DMX | Adair, Adams, Madison, Union | 47 min |
| Jun 1, 5:01 PM CDT | Severe Thunderstorm Warning | DMX | Clarke, Decatur, Madison, Ringgold, Union | 44 min |
| Jun 1, 5:32 PM CDT | Severe Thunderstorm Warning | OAX | Harrison, Pottawattamie | 43 min |
| Jun 1, 5:35 PM CDT | Severe Thunderstorm Warning | DMX | Clarke, Lucas, Marion, Warren | 40 min |
| Jun 1, 5:42 PM CDT | Severe Thunderstorm Warning | OAX | Mills, Pottawattamie | 48 min |
| Jun 1, 5:45 PM CDT | Severe Thunderstorm Warning | DMX | Clarke, Decatur, Lucas, Wayne | 27 min |
| Jun 1, 5:46 PM CDT | Severe Thunderstorm Warning | DMX | Adair, Dallas, Guthrie, Madison | 44 min |
| Jun 1, 5:49 PM CDT | Severe Thunderstorm Warning | DMX | Bremer | 26 min |
| Jun 1, 5:55 PM CDT | Severe Thunderstorm Warning | DMX | Audubon, Carroll | 50 min |
| Jun 1, 6:02 PM CDT | Severe Thunderstorm Warning | ARX | Fayette | 33 min |
| Jun 1, 6:15 PM CDT | Severe Thunderstorm Warning | OAX | Harrison, Pottawattamie, Shelby | 45 min |
| Jun 1, 6:16 PM CDT | Severe Thunderstorm Warning | OAX | Mills, Montgomery, Pottawattamie | 44 min |
| Jun 1, 6:23 PM CDT | Severe Thunderstorm Warning | DMX | Carroll, Dallas, Greene, Guthrie | 52 min |
| Jun 1, 6:45 PM CDT | Severe Thunderstorm Warning | DMX | Audubon, Guthrie | 30 min |
| Jun 1, 6:49 PM CDT | Severe Thunderstorm Warning | DMX | Adair, Adams, Cass, Union | 41 min |
| Jun 1, 6:50 PM CDT | Severe Thunderstorm Warning | DMX | Mahaska, Marion, Monroe, Wapello | 40 min |
| Jun 1, 6:52 PM CDT | Severe Thunderstorm Warning | OAX | Montgomery, Page | 38 min |
| Jun 1, 6:57 PM CDT | Severe Thunderstorm Warning | OAX | Mills | 33 min |
| Jun 1, 7:03 PM CDT | Severe Thunderstorm Warning | OAX | Fremont | 42 min |
| Jun 1, 7:12 PM CDT | Severe Thunderstorm Warning | DMX | Boone, Dallas, Polk | 48 min |
| Jun 1, 7:15 PM CDT | Severe Thunderstorm Warning | DMX | Appanoose, Davis, Wapello | 45 min |
| Jun 1, 7:20 PM CDT | Severe Thunderstorm Warning | OAX | Page | 25 min |
| Jun 1, 7:21 PM CDT | Severe Thunderstorm Warning | DVN | Henry, Jefferson, Keokuk, Van Buren, Washington | 54 min |
| Jun 1, 7:29 PM CDT | Severe Thunderstorm Warning | DMX | Adair, Adams, Cass, Union | 46 min |
| Jun 1, 7:42 PM CDT | Severe Thunderstorm Warning | DMX | Adams, Ringgold, Taylor | 48 min |
| Jun 1, 7:50 PM CDT | Severe Thunderstorm Warning | OAX | Fremont, Page | 40 min |
| Jun 1, 8:10 PM CDT | Severe Thunderstorm Warning | DMX | Adair, Madison, Warren | 50 min |
| Jun 1, 8:13 PM CDT | Severe Thunderstorm Warning | DVN | Des Moines, Henry, Jefferson, Johnson, Keokuk, Lee and 4 more | 62 min |
| Jun 1, 8:14 PM CDT | Severe Thunderstorm Warning | DMX | Clarke, Decatur, Ringgold, Union | 46 min |
| Jun 1, 8:22 PM CDT | Severe Thunderstorm Warning | DMX | Taylor | 38 min |
| Jun 1, 8:46 PM CDT | Severe Thunderstorm Warning | DMX | Ringgold | 44 min |
| Jun 1, 9:19 PM CDT | Severe Thunderstorm Warning | DMX | Decatur, Ringgold | 41 min |
| Jun 1, 9:45 PM CDT | Severe Thunderstorm Warning | DMX | Appanoose, Wayne | 45 min |
| Jun 1, 9:49 PM CDT | Severe Thunderstorm Warning | DMX | Appanoose, Davis, Monroe, Wapello | 41 min |
| Jun 1, 10:02 PM CDT | Severe Thunderstorm Warning | DMX | Mahaska | 28 min |
| Jun 1, 10:07 PM CDT | Severe Thunderstorm Warning | DVN | Henry, Iowa, Jefferson, Johnson, Keokuk, Louisa and 2 more | 53 min |
| Jun 1, 10:28 PM CDT | Severe Thunderstorm Warning | DMX | Appanoose, Davis, Wapello | 36 min |
| Jun 1, 10:46 PM CDT | Severe Thunderstorm Warning | DVN | Jefferson, Lee, Van Buren | 74 min |
| Jun 1, 11:06 PM CDT | Severe Thunderstorm Warning | DVN | Des Moines, Henry, Jefferson, Louisa, Washington | 69 min |
| Jun 3, 10:02 PM CDT | Severe Thunderstorm Warning | FSD | Cherokee, O'Brien, Plymouth, Sioux | 43 min |
| Jun 3, 10:45 PM CDT | Severe Thunderstorm Warning | FSD | Buena Vista, Cherokee, Ida, Plymouth, Woodbury | 45 min |
| Jun 4, 5:26 PM CDT | Severe Thunderstorm Warning | DVN | Lee, Van Buren | 47 min |
| Jun 4, 5:40 PM CDT | Severe Thunderstorm Warning | DVN | Lee | 65 min |
| Jun 4, 8:58 PM CDT | Severe Thunderstorm Warning | DMX | Appanoose | 36 min |
| Jun 4, 9:24 PM CDT | Severe Thunderstorm Warning | DMX | Davis | 36 min |
| Jun 4, 9:48 PM CDT | Severe Thunderstorm Warning | DVN | Van Buren | 41 min |
| Jun 4, 11:56 PM CDT | Severe Thunderstorm Warning | OAX | Montgomery, Page | 26 min |
| Jun 5, 12:06 AM CDT | Severe Thunderstorm Warning | DVN | Des Moines, Henry, Louisa | 36 min |
| Jun 5, 12:06 AM CDT | Severe Thunderstorm Warning | OAX | Fremont, Mills, Montgomery, Page | 39 min |
| Jun 5, 12:07 AM CDT | Severe Thunderstorm Warning | DMX | Ringgold, Taylor | 38 min |
| Jun 5, 12:41 AM CDT | Severe Thunderstorm Warning | OAX | Fremont, Montgomery, Page | 49 min |
| Jun 5, 12:57 AM CDT | Severe Thunderstorm Warning | DMX | Ringgold, Taylor | 48 min |
| Jun 5, 1:13 AM CDT | Severe Thunderstorm Warning | OAX | Pottawattamie | 47 min |
| Jun 5, 1:27 AM CDT | Severe Thunderstorm Warning | DMX | Taylor | 25 min |
| Jun 5, 2:10 AM CDT | Severe Thunderstorm Warning | OAX | Mills, Montgomery, Pottawattamie | 44 min |
| Jun 5, 2:46 AM CDT | Severe Thunderstorm Warning | OAX | Montgomery, Page | 18 min |
| Jun 5, 2:51 AM CDT | Severe Thunderstorm Warning | DMX | Adams, Taylor | 39 min |
| Jun 5, 3:28 AM CDT | Severe Thunderstorm Warning | DMX | Ringgold, Taylor | 47 min |
| Jun 5, 3:37 AM CDT | Severe Thunderstorm Warning | OAX | Fremont, Page | 23 min |
| Jun 5, 3:56 AM CDT | Severe Thunderstorm Warning | OAX | Page | 20 min |
| Jun 5, 4:18 PM CDT | Severe Thunderstorm Warning | DMX | Boone, Hamilton, Webster | 57 min |
| Jun 5, 4:58 PM CDT | Severe Thunderstorm Warning | DMX | Hamilton, Hardin, Marshall, Story | 47 min |
| Jun 10, 8:09 AM CDT | Severe Thunderstorm Warning | OAX | Monona | 51 min |
| Jun 11, 2:15 AM CDT | Severe Thunderstorm Warning | FSD | Plymouth | 30 min |
| Jun 11, 2:24 AM CDT | Severe Thunderstorm Warning | FSD | Lyon, Sioux | 51 min |
| Jun 11, 2:36 AM CDT | Severe Thunderstorm Warning | FSD | Plymouth, Sioux, Woodbury | 39 min |
| Jun 11, 2:58 AM CDT | Severe Thunderstorm Warning | FSD | Lyon, O'Brien, Sioux | 47 min |
| Jun 11, 3:14 AM CDT | Severe Thunderstorm Warning | FSD | Cherokee, Ida, Plymouth, Sioux, Woodbury | 46 min |
| Jun 11, 3:30 AM CDT | Severe Thunderstorm Warning | FSD | Clay, Dickinson, Lyon, O'Brien, Osceola, Sioux | 45 min |
| Jun 11, 3:56 AM CDT | Severe Thunderstorm Warning | FSD | Buena Vista, Cherokee, Clay, Ida, O'Brien | 49 min |
| Jun 11, 3:57 AM CDT | Severe Thunderstorm Warning | FSD | Dickinson | 48 min |
| Jun 11, 4:01 AM CDT | Severe Thunderstorm Warning | DMX | Calhoun, Sac | 44 min |
| Jun 11, 5:36 AM CDT | Severe Thunderstorm Warning | DMX | Audubon, Guthrie | 54 min |
| Jun 11, 6:11 AM CDT | Severe Thunderstorm Warning | DMX | Boone, Dallas, Greene, Polk | 49 min |
| Jun 12, 5:46 AM CDT | Severe Thunderstorm Warning | DMX | Boone, Calhoun, Greene, Hamilton, Webster | 44 min |
| Jun 17, 4:20 PM CDT | Severe Thunderstorm Warning | DMX | Emmet, Kossuth | 40 min |
| Jun 17, 4:47 PM CDT | Severe Thunderstorm Warning | FSD | Cherokee, Clay, O'Brien | 28 min |
| Jun 17, 4:52 PM CDT | Severe Thunderstorm Warning | FSD | Buena Vista, Cherokee, Clay | 38 min |
| Jun 17, 6:34 PM CDT | Severe Thunderstorm Warning | FSD | Buena Vista, Clay | 26 min |
| Jun 17, 7:47 PM CDT | Severe Thunderstorm Warning | DMX | Humboldt, Kossuth, Palo Alto, Pocahontas | 58 min |
| Jun 17, 7:49 PM CDT | Severe Thunderstorm Warning | DMX | Calhoun, Pocahontas, Sac | 41 min |
| Jun 17, 7:52 PM CDT | Severe Thunderstorm Warning | DMX | Carroll, Crawford | 38 min |
| Jun 17, 8:24 PM CDT | Severe Thunderstorm Warning | OAX | Harrison, Shelby | 51 min |
| Jun 17, 8:30 PM CDT | Severe Thunderstorm Warning | DMX | Hancock, Humboldt, Kossuth, Webster, Wright | 45 min |
| Jun 17, 8:35 PM CDT | Severe Thunderstorm Warning | DMX | Cerro Gordo, Hancock, Winnebago, Worth | 55 min |
| Jun 17, 8:53 PM CDT | Severe Thunderstorm Warning | DMX | Calhoun, Carroll, Greene, Webster | 52 min |
| Jun 17, 9:01 PM CDT | Severe Thunderstorm Warning | DMX | Carroll, Crawford | 44 min |
| Jun 17, 9:06 PM CDT | Severe Thunderstorm Warning | DMX | Cerro Gordo, Franklin, Hancock, Wright | 54 min |
| Jun 17, 9:06 PM CDT | Severe Thunderstorm Warning | OAX | Harrison, Shelby | 39 min |
| Jun 17, 9:09 PM CDT | Severe Thunderstorm Warning | ARX | Chickasaw, Floyd, Howard, Mitchell | 66 min |
| Jun 17, 9:30 PM CDT | Severe Thunderstorm Warning | DMX | Greene | 45 min |
| Jun 17, 9:38 PM CDT | Severe Thunderstorm Warning | DMX | Hamilton, Wright | 37 min |
| Jun 17, 9:55 PM CDT | Severe Thunderstorm Warning | ARX | Allamakee, Chickasaw, Clayton, Fayette, Howard, Winneshiek | 65 min |
| Jun 17, 10:02 PM CDT | Severe Thunderstorm Warning | DMX | Butler, Franklin | 43 min |
| Jun 17, 10:08 PM CDT | Severe Thunderstorm Warning | DMX | Carroll, Greene | 52 min |
| Jun 17, 10:15 PM CDT | Severe Thunderstorm Warning | DMX | Boone, Hamilton, Story, Webster | 45 min |
| Jun 17, 10:20 PM CDT | Severe Thunderstorm Warning | DMX | Butler, Franklin, Grundy, Hamilton, Hardin, Wright | 55 min |
| Jun 17, 10:55 PM CDT | Severe Thunderstorm Warning | ARX | Allamakee | 65 min |
| Jun 17, 11:19 PM CDT | Severe Thunderstorm Warning | DMX | Adair, Audubon, Cass, Guthrie | 41 min |
| Jun 17, 11:57 PM CDT | Severe Thunderstorm Warning | DMX | Adair, Dallas, Guthrie, Madison | 48 min |
| Jun 18, 7:49 AM CDT | Severe Thunderstorm Warning | OAX | Pottawattamie | 41 min |
| Jun 18, 8:01 AM CDT | Severe Thunderstorm Warning | DMX | Calhoun, Carroll, Crawford, Sac | 44 min |
| Jun 18, 8:26 AM CDT | Severe Thunderstorm Warning | OAX | Pottawattamie | 34 min |
| Jun 18, 8:33 AM CDT | Severe Thunderstorm Warning | DMX | Carroll, Crawford, Greene | 57 min |
| Jun 18, 8:36 AM CDT | Severe Thunderstorm Warning | DMX | Adair, Audubon, Cass, Guthrie | 54 min |
| Jun 18, 8:43 AM CDT | Severe Thunderstorm Warning | OAX | Shelby | 14 min |
| Jun 18, 9:04 AM CDT | Severe Thunderstorm Warning | OAX | Montgomery | 26 min |
| Jun 18, 9:08 AM CDT | Severe Thunderstorm Warning | DMX | Boone, Hamilton, Story, Webster | 67 min |
| Jun 18, 9:22 AM CDT | Severe Thunderstorm Warning | DMX | Dallas, Guthrie, Polk | 53 min |
| Jun 18, 9:31 AM CDT | Severe Thunderstorm Warning | DMX | Adair, Adams, Cass, Clarke, Madison, Union and 1 more | 59 min |
| Jun 18, 9:35 AM CDT | Severe Thunderstorm Warning | ARX | Floyd, Mitchell | 40 min |
| Jun 18, 9:45 AM CDT | Severe Thunderstorm Warning | DMX | Jasper, Marshall, Polk, Story | 45 min |
| Jun 18, 9:58 AM CDT | Severe Thunderstorm Warning | ARX | Howard | 47 min |
| Jun 18, 10:13 AM CDT | Severe Thunderstorm Warning | DMX | Clarke, Lucas, Madison, Mahaska, Marion, Monroe and 2 more | 62 min |
| Jun 18, 10:30 AM CDT | Severe Thunderstorm Warning | DMX | Jasper, Marshall, Poweshiek, Tama | 60 min |
| Jun 18, 11:07 AM CDT | Severe Thunderstorm Warning | FSD | Ida, Woodbury | 23 min |
| Jun 18, 11:11 AM CDT | Severe Thunderstorm Warning | DMX | Mahaska | 49 min |
| Jun 18, 11:16 AM CDT | Severe Thunderstorm Warning | FSD | Cherokee, Ida | 29 min |
| Jun 18, 11:20 AM CDT | Severe Thunderstorm Warning | DVN | Benton, Buchanan, Iowa | 55 min |
| Jun 18, 11:41 AM CDT | Severe Thunderstorm Warning | FSD | Ida | 19 min |
| Jun 18, 11:54 AM CDT | Severe Thunderstorm Warning | DMX | Calhoun, Pocahontas | 36 min |
| Jun 18, 11:58 AM CDT | Severe Thunderstorm Warning | DVN | Benton, Iowa, Johnson, Linn | 62 min |
| Jun 18, 12:03 PM CDT | Severe Thunderstorm Warning | FSD | Ida | 27 min |
| Jun 18, 12:09 PM CDT | Severe Thunderstorm Warning | DMX | Sac | 51 min |
| Jun 18, 12:19 PM CDT | Severe Thunderstorm Warning | FSD | Buena Vista | 26 min |
| Jun 18, 12:25 PM CDT | Severe Thunderstorm Warning | DMX | Humboldt, Webster | 50 min |
| Jun 18, 12:35 PM CDT | Severe Thunderstorm Warning | DVN | Cedar, Johnson, Jones, Linn, Muscatine | 55 min |
| Jun 18, 12:41 PM CDT | Severe Thunderstorm Warning | FSD | Buena Vista | 34 min |
| Jun 18, 12:59 PM CDT | Severe Thunderstorm Warning | DMX | Hamilton, Webster, Wright | 42 min |
| Jun 18, 12:59 PM CDT | Severe Thunderstorm Warning | DVN | Des Moines, Henry, Louisa, Washington | 61 min |
| Jun 18, 1:04 PM CDT | Severe Thunderstorm Warning | DVN | Clinton, Jackson, Muscatine, Scott | 56 min |
| Jun 18, 1:06 PM CDT | Severe Thunderstorm Warning | DMX | Pocahontas | 39 min |
| Jun 18, 1:19 PM CDT | Severe Thunderstorm Warning | DMX | Humboldt | 41 min |
| Jun 18, 1:36 PM CDT | Severe Thunderstorm Warning | DVN | Clinton, Jackson | 54 min |
| Jun 18, 1:59 PM CDT | Severe Thunderstorm Warning | DMX | Humboldt, Wright | 46 min |
| Jun 18, 2:07 PM CDT | Severe Thunderstorm Warning | DVN | Des Moines, Lee | 53 min |
| Jun 18, 2:37 PM CDT | Severe Thunderstorm Warning | DMX | Humboldt, Webster, Wright | 38 min |
| Jun 18, 2:41 PM CDT | Severe Thunderstorm Warning | DMX | Cerro Gordo, Franklin | 49 min |
| Jun 18, 3:10 PM CDT | Severe Thunderstorm Warning | DMX | Butler | 50 min |
| Jun 18, 3:34 PM CDT | Severe Thunderstorm Warning | DMX | Butler, Grundy | 41 min |
| Jun 18, 4:33 PM CDT | Severe Thunderstorm Warning | DMX | Hamilton, Hardin, Marshall, Story | 28 min |
| Jun 18, 4:37 PM CDT | Severe Thunderstorm Warning | DMX | Dallas, Madison, Polk | 33 min |
| Jun 18, 4:41 PM CDT | Severe Thunderstorm Warning | DMX | Madison, Polk, Warren | 49 min |
| Jun 18, 4:42 PM CDT | Severe Thunderstorm Warning | DMX | Grundy, Hardin, Marshall, Tama | 48 min |
| Jun 18, 4:49 PM CDT | Severe Thunderstorm Warning | DMX | Madison | 26 min |
| Jun 18, 5:09 PM CDT | Severe Thunderstorm Warning | DMX | Black Hawk, Grundy, Tama | 51 min |
| Jun 18, 5:11 PM CDT | Severe Thunderstorm Warning | DMX | Adair, Cass | 49 min |
| Jun 18, 5:17 PM CDT | Severe Thunderstorm Warning | DMX | Lucas, Marion, Warren | 43 min |
| Jun 18, 5:24 PM CDT | Severe Thunderstorm Warning | DMX | Marshall, Story | 51 min |
| Jun 18, 5:30 PM CDT | Severe Thunderstorm Warning | DVN | Benton, Buchanan, Delaware, Linn | 60 min |
| Jun 18, 6:02 PM CDT | Severe Thunderstorm Warning | DMX | Appanoose, Lucas, Marion, Monroe, Warren | 43 min |
| Jun 18, 6:04 PM CDT | Severe Thunderstorm Warning | DVN | Cedar, Clinton, Delaware, Dubuque, Jackson, Jones and 1 more | 56 min |
| Jun 18, 6:05 PM CDT | Severe Thunderstorm Warning | DMX | Tama | 40 min |
| Jun 18, 6:07 PM CDT | Severe Thunderstorm Warning | DMX | Clarke, Madison, Union | 38 min |
| Jun 18, 6:21 PM CDT | Severe Thunderstorm Warning | DMX | Mahaska, Marion, Monroe, Wapello | 39 min |
| Jun 18, 6:26 PM CDT | Severe Thunderstorm Warning | DVN | Benton, Iowa | 34 min |
| Jun 18, 6:41 PM CDT | Severe Thunderstorm Warning | DVN | Cedar, Clinton, Jackson, Jones, Scott | 49 min |
| Jun 18, 6:54 PM CDT | Severe Thunderstorm Warning | DMX | Clarke, Ringgold, Union | 51 min |
| Jun 18, 6:58 PM CDT | Severe Thunderstorm Warning | DMX | Appanoose, Davis, Mahaska, Monroe, Wapello | 47 min |
| Jun 18, 7:03 PM CDT | Severe Thunderstorm Warning | DVN | Jefferson, Keokuk, Washington | 57 min |
| Jun 18, 7:20 PM CDT | Severe Thunderstorm Warning | DMX | Jasper, Mahaska, Marion, Poweshiek | 40 min |
| Jun 18, 7:23 PM CDT | Severe Thunderstorm Warning | DVN | Clinton, Scott | 67 min |
| Jun 18, 7:27 PM CDT | Severe Thunderstorm Warning | DVN | Clinton, Jackson | 48 min |
| Jun 18, 7:32 PM CDT | Severe Thunderstorm Warning | DVN | Des Moines, Henry, Louisa, Muscatine | 43 min |
| Jun 18, 7:36 PM CDT | Severe Thunderstorm Warning | DMX | Appanoose, Lucas, Monroe, Wayne | 39 min |
| Jun 18, 7:41 PM CDT | Severe Thunderstorm Warning | DMX | Clarke, Decatur, Lucas, Wayne | 49 min |
| Jun 18, 7:59 PM CDT | Severe Thunderstorm Warning | DMX | Appanoose, Wayne | 31 min |
| Jun 18, 8:12 PM CDT | Severe Thunderstorm Warning | DVN | Cedar, Louisa, Muscatine, Scott | 63 min |
| Jun 18, 8:14 PM CDT | Severe Thunderstorm Warning | DMX | Appanoose, Lucas, Monroe, Wayne | 16 min |
| Jun 18, 8:22 PM CDT | Severe Thunderstorm Warning | DMX | Appanoose, Davis, Lucas, Monroe, Wapello, Wayne | 53 min |
| Jun 18, 8:37 PM CDT | Severe Thunderstorm Warning | DVN | Des Moines, Louisa | 23 min |
| Jun 18, 8:41 PM CDT | Severe Thunderstorm Warning | DVN | Des Moines, Henry, Lee, Van Buren | 49 min |
| Jun 18, 9:16 PM CDT | Severe Thunderstorm Warning | DMX | Appanoose, Davis, Wayne | 44 min |
| Jun 19, 10:38 PM CDT | Severe Thunderstorm Warning | DMX | Calhoun, Sac | 37 min |
| Jun 19, 11:34 PM CDT | Severe Thunderstorm Warning | DMX | Pocahontas | 41 min |
| Jun 19, 11:47 PM CDT | Severe Thunderstorm Warning | DMX | Hancock, Humboldt, Kossuth, Wright | 43 min |
| Jun 20, 5:38 AM CDT | Severe Thunderstorm Warning | FSD | Plymouth | 37 min |
| Jun 21, 4:12 PM CDT | Severe Thunderstorm Warning | DVN | Des Moines, Henry, Lee, Van Buren | 63 min |
| Jun 21, 4:36 PM CDT | Severe Thunderstorm Warning | DVN | Des Moines, Lee | 54 min |
| Jun 21, 6:43 PM CDT | Severe Thunderstorm Warning | DMX | Appanoose, Wayne | 47 min |
| Jun 21, 6:58 PM CDT | Severe Thunderstorm Warning | DVN | Clinton | 62 min |
| Jun 21, 7:05 PM CDT | Severe Thunderstorm Warning | DVN | Des Moines, Henry, Lee, Van Buren | 55 min |
| Jun 21, 7:25 PM CDT | Severe Thunderstorm Warning | DMX | Davis | 32 min |
| Jun 21, 7:41 PM CDT | Severe Thunderstorm Warning | DVN | Clinton, Scott | 31 min |
| Jun 21, 9:29 PM CDT | Severe Thunderstorm Warning | DMX | Davis | 31 min |
| Jun 21, 9:33 PM CDT | Severe Thunderstorm Warning | DVN | Des Moines, Lee | 44 min |
| Jun 21, 9:40 PM CDT | Severe Thunderstorm Warning | DVN | Van Buren | 53 min |
| Jun 21, 10:29 PM CDT | Severe Thunderstorm Warning | DVN | Lee, Van Buren | 61 min |
| Jun 21, 11:04 PM CDT | Severe Thunderstorm Warning | DMX | Appanoose, Davis, Monroe, Wapello | 45 min |
| Jun 22, 4:32 AM CDT | Severe Thunderstorm Warning | DMX | Clarke, Decatur, Madison, Ringgold, Union | 43 min |
| Jun 22, 4:59 AM CDT | Severe Thunderstorm Warning | DMX | Clarke, Lucas, Madison, Marion, Warren | 46 min |
| Jun 22, 5:42 AM CDT | Severe Thunderstorm Warning | DMX | Jasper, Mahaska, Marion, Polk, Warren | 48 min |
| Jun 22, 6:02 AM CDT | Severe Thunderstorm Warning | DMX | Mahaska, Monroe, Wapello | 43 min |
| Jun 22, 6:15 AM CDT | Severe Thunderstorm Warning | DMX | Mahaska, Poweshiek | 30 min |
| Jun 22, 6:21 AM CDT | Severe Thunderstorm Warning | DVN | Iowa, Jefferson, Johnson, Keokuk, Washington | 54 min |
| Jun 22, 6:36 AM CDT | Severe Thunderstorm Warning | DMX | Davis | 39 min |
| Jun 22, 9:28 PM CDT | Severe Thunderstorm Warning | DMX | Kossuth, Winnebago | 47 min |
| Jun 22, 10:06 PM CDT | Severe Thunderstorm Warning | DMX | Hancock, Kossuth, Palo Alto | 19 min |
| Jun 22, 10:19 PM CDT | Severe Thunderstorm Warning | OAX | Mills, Pottawattamie | 41 min |
| Jun 22, 10:39 PM CDT | Severe Thunderstorm Warning | DMX | Humboldt, Kossuth, Palo Alto, Pocahontas | 51 min |
| Jun 22, 10:43 PM CDT | Severe Thunderstorm Warning | DMX | Franklin, Wright | 47 min |
| Jun 22, 10:48 PM CDT | Severe Thunderstorm Warning | FSD | Cherokee, Plymouth | 27 min |
| Jun 22, 10:55 PM CDT | Severe Thunderstorm Warning | DMX | Franklin, Hamilton, Wright | 50 min |
| Jun 22, 10:55 PM CDT | Severe Thunderstorm Warning | OAX | Mills, Pottawattamie | 50 min |
| Jun 22, 11:05 PM CDT | Severe Thunderstorm Warning | OAX | Harrison, Monona | 27 min |
| Jun 22, 11:08 PM CDT | Severe Thunderstorm Warning | OAX | Harrison, Pottawattamie, Shelby | 52 min |
| Jun 22, 11:30 PM CDT | Severe Thunderstorm Warning | DMX | Franklin, Wright | 60 min |
| Jun 22, 11:30 PM CDT | Severe Thunderstorm Warning | DMX | Audubon, Carroll, Cass, Guthrie | 45 min |
| Jun 22, 11:35 PM CDT | Severe Thunderstorm Warning | DMX | Carroll, Crawford, Sac | 40 min |
| Jun 22, 11:47 PM CDT | Severe Thunderstorm Warning | FSD | Cherokee, Plymouth, Woodbury | 28 min |
| Jun 22, 11:58 PM CDT | Severe Thunderstorm Warning | FSD | Buena Vista, Clay | 32 min |
| Jun 23, 12:04 AM CDT | Severe Thunderstorm Warning | DMX | Adair, Audubon, Carroll, Dallas, Greene, Guthrie | 41 min |
| Jun 23, 12:11 AM CDT | Severe Thunderstorm Warning | FSD | Cherokee, Ida, O'Brien, Plymouth, Sioux, Woodbury | 27 min |
| Jun 23, 12:15 AM CDT | Severe Thunderstorm Warning | FSD | Lyon | 30 min |
| Jun 23, 12:24 AM CDT | Severe Thunderstorm Warning | DMX | Emmet, Palo Alto | 51 min |
| Jun 23, 12:28 AM CDT | Severe Thunderstorm Warning | DMX | Butler, Franklin, Grundy, Hardin | 62 min |
| Jun 23, 12:31 AM CDT | Severe Thunderstorm Warning | FSD | Lyon | 44 min |
| Jun 23, 1:32 AM CDT | Severe Thunderstorm Warning | DMX | Black Hawk, Bremer, Butler, Franklin | 58 min |
| Jun 23, 1:50 AM CDT | Severe Thunderstorm Warning | ARX | Chickasaw, Fayette, Howard, Winneshiek | 55 min |
| Jun 23, 2:13 AM CDT | Severe Thunderstorm Warning | ARX | Allamakee, Winneshiek | 52 min |
| Jun 23, 2:13 AM CDT | Severe Thunderstorm Warning | DMX | Black Hawk, Butler, Grundy | 32 min |
| Jun 23, 2:19 AM CDT | Severe Thunderstorm Warning | ARX | Fayette | 26 min |
| Jun 23, 2:28 AM CDT | Severe Thunderstorm Warning | DVN | Buchanan, Delaware | 62 min |
| Jun 23, 2:44 AM CDT | Severe Thunderstorm Warning | ARX | Allamakee, Clayton, Fayette, Winneshiek | 61 min |
| Jun 23, 3:42 AM CDT | Severe Thunderstorm Warning | DVN | Clinton, Delaware, Dubuque, Jackson, Jones | 63 min |
| Jun 23, 4:19 AM CDT | Severe Thunderstorm Warning | DMX | Adair, Audubon, Cass, Guthrie | 41 min |
| Jun 23, 4:19 AM CDT | Severe Thunderstorm Warning | DVN | Cedar, Clinton, Jackson, Muscatine, Scott | 56 min |
| Jun 23, 3:25 PM CDT | Severe Thunderstorm Warning | DVN | Johnson, Louisa, Muscatine, Washington | 65 min |
| Jun 23, 3:34 PM CDT | Severe Thunderstorm Warning | DMX | Monroe, Wapello | 56 min |
| Jun 23, 3:48 PM CDT | Severe Thunderstorm Warning | DVN | Des Moines, Henry, Jefferson, Keokuk, Louisa, Washington | 57 min |
| Jun 23, 4:03 PM CDT | Severe Thunderstorm Warning | DVN | Clinton, Jackson | 30 min |
| Jun 23, 4:28 PM CDT | Severe Thunderstorm Warning | DVN | Muscatine, Scott | 62 min |
| Jun 23, 4:53 PM CDT | Severe Thunderstorm Warning | DVN | Des Moines, Henry, Lee, Louisa, Van Buren | 67 min |
| Jun 23, 5:14 PM CDT | Severe Thunderstorm Warning | DVN | Lee, Van Buren | 61 min |
| Jun 25, 8:24 PM CDT | Severe Thunderstorm Warning | DMX | Cerro Gordo, Hancock, Kossuth, Winnebago, Worth | 66 min |
| Jun 25, 9:01 PM CDT | Severe Thunderstorm Warning | ARX | Floyd, Mitchell | 59 min |
| Jun 25, 9:11 PM CDT | Severe Thunderstorm Warning | DMX | Butler, Cerro Gordo, Franklin | 49 min |
| Jun 25, 9:15 PM CDT | Severe Thunderstorm Warning | FSD | Dickinson, Osceola | 45 min |
| Jun 25, 9:26 PM CDT | Severe Thunderstorm Warning | DMX | Emmet, Hancock, Humboldt, Kossuth, Palo Alto, Winnebago and 1 more | 49 min |
| Jun 25, 9:33 PM CDT | Severe Thunderstorm Warning | FSD | Lyon, Osceola | 42 min |
| Jun 25, 9:38 PM CDT | Severe Thunderstorm Warning | DMX | Emmet, Palo Alto | 67 min |
| Jun 25, 9:43 PM CDT | Severe Thunderstorm Warning | ARX | Chickasaw, Floyd, Howard, Mitchell | 47 min |
| Jun 25, 9:58 PM CDT | Severe Thunderstorm Warning | DMX | Black Hawk, Bremer, Butler | 47 min |
| Jun 25, 10:02 PM CDT | Severe Thunderstorm Warning | DMX | Butler, Franklin, Grundy, Hamilton, Hardin, Humboldt and 2 more | 43 min |
| Jun 25, 10:02 PM CDT | Severe Thunderstorm Warning | FSD | Clay, Dickinson, O'Brien, Osceola | 43 min |
| Jun 25, 10:35 PM CDT | Severe Thunderstorm Warning | DMX | Black Hawk, Bremer, Butler, Grundy | 40 min |
| Jun 25, 10:37 PM CDT | Severe Thunderstorm Warning | DMX | Calhoun, Emmet, Humboldt, Kossuth, Palo Alto, Pocahontas and 2 more | 53 min |
| Jun 25, 10:40 PM CDT | Severe Thunderstorm Warning | DMX | Boone, Grundy, Hamilton, Hardin, Marshall, Story and 2 more | 50 min |
| Jun 25, 10:44 PM CDT | Severe Thunderstorm Warning | FSD | Buena Vista, Clay, O'Brien | 46 min |
| Jun 25, 11:30 PM CDT | Severe Thunderstorm Warning | FSD | Buena Vista, Clay | 45 min |
| Jun 25, 11:33 PM CDT | Severe Thunderstorm Warning | DMX | Boone, Dallas, Jasper, Polk, Story | 57 min |
| Jun 25, 11:45 PM CDT | Severe Thunderstorm Warning | DMX | Humboldt, Palo Alto, Pocahontas, Sac | 60 min |
| Jun 26, 12:20 AM CDT | Severe Thunderstorm Warning | DMX | Hamilton, Humboldt, Pocahontas, Webster, Wright | 40 min |
| Jun 26, 12:45 AM CDT | Severe Thunderstorm Warning | DMX | Calhoun, Pocahontas | 60 min |
| Jun 26, 12:46 AM CDT | Severe Thunderstorm Warning | FSD | Buena Vista | 44 min |
| Jun 26, 1:38 AM CDT | Severe Thunderstorm Warning | DMX | Appanoose, Davis, Monroe, Wapello | 37 min |
| Jun 26, 3:52 AM CDT | Severe Thunderstorm Warning | DMX | Palo Alto | 38 min |
| Jun 26, 4:30 AM CDT | Severe Thunderstorm Warning | DMX | Humboldt, Kossuth, Palo Alto, Pocahontas | 60 min |
| Jun 26, 5:29 AM CDT | Severe Thunderstorm Warning | DMX | Dallas, Polk | 23 min |
| Jun 26, 7:09 PM CDT | Severe Thunderstorm Warning | FSD | Lyon | 36 min |
| Jun 26, 7:46 PM CDT | Severe Thunderstorm Warning | FSD | Lyon, Sioux | 44 min |
| Jun 26, 8:16 PM CDT | Severe Thunderstorm Warning | FSD | Sioux | 14 min |
| Jun 26, 8:29 PM CDT | Severe Thunderstorm Warning | FSD | Lyon, Sioux | 46 min |
| Jun 26, 8:33 PM CDT | Severe Thunderstorm Warning | DMX | Emmet, Kossuth, Palo Alto | 57 min |
| Jun 26, 9:11 PM CDT | Severe Thunderstorm Warning | FSD | Cherokee, O'Brien, Plymouth, Sioux | 49 min |
| Jun 26, 9:12 PM CDT | Severe Thunderstorm Warning | DMX | Emmet, Hancock, Kossuth, Winnebago | 48 min |
| Jun 26, 9:28 PM CDT | Severe Thunderstorm Warning | DMX | Emmet, Hancock, Humboldt, Kossuth, Palo Alto, Pocahontas | 47 min |
| Jun 26, 9:56 PM CDT | Severe Thunderstorm Warning | FSD | Buena Vista, Cherokee, Clay, O'Brien, Plymouth | 49 min |
| Jun 26, 10:02 PM CDT | Severe Thunderstorm Warning | DMX | Cerro Gordo, Hancock, Winnebago, Worth | 58 min |
| Jun 26, 10:22 PM CDT | Severe Thunderstorm Warning | ARX | Chickasaw, Floyd, Howard, Mitchell | 53 min |
| Jun 26, 11:18 PM CDT | Severe Thunderstorm Warning | DMX | Calhoun, Humboldt, Pocahontas, Webster | 39 min |
| Jun 26, 11:57 PM CDT | Severe Thunderstorm Warning | FSD | Woodbury | 48 min |
| Jun 27, 12:09 AM CDT | Severe Thunderstorm Warning | DMX | Sac | 43 min |
| Jun 27, 1:27 AM CDT | Severe Thunderstorm Warning | DMX | Calhoun, Carroll, Crawford, Sac | 37 min |
| Jun 27, 1:49 AM CDT | Severe Thunderstorm Warning | DMX | Calhoun, Carroll, Greene, Webster | 41 min |
| Jun 27, 4:18 AM CDT | Severe Thunderstorm Warning | DMX | Lucas, Marion, Warren | 42 min |
| Jun 27, 4:34 AM CDT | Severe Thunderstorm Warning | DMX | Jasper, Mahaska, Marion, Monroe | 41 min |
| Jun 27, 4:44 AM CDT | Severe Thunderstorm Warning | DMX | Appanoose, Lucas, Marion, Monroe, Wayne | 46 min |
| Jul 11, 10:30 PM CDT | Severe Thunderstorm Warning | FSD | Plymouth | 24 min |
| Jul 12, 2:59 AM CDT | Severe Thunderstorm Warning | OAX | Harrison | 46 min |
| Jul 12, 10:33 PM CDT | Severe Thunderstorm Warning | DMX | Clarke, Madison, Warren | 42 min |
| Jul 12, 11:11 PM CDT | Severe Thunderstorm Warning | DMX | Clarke, Lucas | 34 min |
| Jul 14, 5:58 PM CDT | Severe Thunderstorm Warning | OAX | Monona | 62 min |
| Jul 14, 6:13 PM CDT | Severe Thunderstorm Warning | FSD | Ida, Woodbury | 47 min |
| Jul 14, 6:35 PM CDT | Severe Thunderstorm Warning | DMX | Crawford | 55 min |
| Jul 14, 6:46 PM CDT | Severe Thunderstorm Warning | OAX | Harrison, Monona, Shelby | 29 min |
| Jul 14, 7:06 PM CDT | Severe Thunderstorm Warning | OAX | Mills, Pottawattamie | 39 min |
| Jul 14, 7:21 PM CDT | Severe Thunderstorm Warning | DMX | Audubon, Carroll, Crawford | 39 min |
| Jul 14, 7:39 PM CDT | Severe Thunderstorm Warning | DMX | Calhoun, Carroll, Sac | 51 min |
| Jul 14, 7:42 PM CDT | Severe Thunderstorm Warning | OAX | Fremont, Mills, Montgomery, Page, Pottawattamie | 48 min |
| Jul 14, 8:03 PM CDT | Severe Thunderstorm Warning | DMX | Cass | 42 min |
| Jul 14, 8:25 PM CDT | Severe Thunderstorm Warning | OAX | Montgomery, Page | 50 min |
| Jul 14, 8:28 PM CDT | Severe Thunderstorm Warning | OAX | Fremont, Mills | 47 min |
| Jul 14, 9:25 PM CDT | Severe Thunderstorm Warning | OAX | Fremont | 50 min |
| Jul 16, 5:33 PM CDT | Severe Thunderstorm Warning | DMX | Hancock, Kossuth, Winnebago | 28 min |
| Jul 16, 6:17 PM CDT | Severe Thunderstorm Warning | FSD | Woodbury | 28 min |
| Jul 16, 6:25 PM CDT | Severe Thunderstorm Warning | OAX | Monona | 50 min |
| Jul 16, 7:06 PM CDT | Severe Thunderstorm Warning | DMX | Worth | 24 min |
| Jul 16, 7:13 PM CDT | Severe Thunderstorm Warning | DMX | Cerro Gordo, Hancock, Winnebago, Worth | 32 min |
| Jul 16, 7:43 PM CDT | Severe Thunderstorm Warning | DMX | Cerro Gordo, Hancock | 32 min |
| Jul 16, 8:11 PM CDT | Severe Thunderstorm Warning | DMX | Cerro Gordo, Hancock | 49 min |
| Jul 16, 9:03 PM CDT | Severe Thunderstorm Warning | DMX | Butler, Cerro Gordo, Franklin | 42 min |
| Jul 16, 9:28 PM CDT | Severe Thunderstorm Warning | DMX | Franklin, Wright | 47 min |
| Jul 16, 10:03 PM CDT | Severe Thunderstorm Warning | DMX | Hamilton, Wright | 42 min |
| Jul 16, 10:42 PM CDT | Severe Thunderstorm Warning | DMX | Hamilton, Hardin, Story | 48 min |
| Jul 16, 10:54 PM CDT | Severe Thunderstorm Warning | DMX | Hamilton, Humboldt, Webster, Wright | 51 min |
| Jul 17, 10:15 PM CDT | Severe Thunderstorm Warning | FSD | Dickinson, Osceola | 45 min |
| Jul 17, 10:20 PM CDT | Severe Thunderstorm Warning | DMX | Emmet, Kossuth, Palo Alto | 40 min |
| Jul 17, 10:35 PM CDT | Severe Thunderstorm Warning | FSD | Clay, Dickinson | 25 min |
| Jul 17, 10:54 PM CDT | Severe Thunderstorm Warning | DMX | Emmet, Kossuth, Palo Alto | 51 min |
| Jul 17, 10:57 PM CDT | Severe Thunderstorm Warning | FSD | Clay, Dickinson, O'Brien, Osceola | 48 min |
| Jul 17, 11:46 PM CDT | Severe Thunderstorm Warning | DMX | Humboldt, Kossuth, Palo Alto, Pocahontas | 44 min |
| Jul 18, 12:06 AM CDT | Severe Thunderstorm Warning | ARX | Allamakee, Winneshiek | 39 min |
| Jul 18, 12:31 AM CDT | Severe Thunderstorm Warning | DMX | Hamilton, Humboldt, Kossuth, Pocahontas, Webster, Wright | 44 min |
| Jul 18, 12:40 AM CDT | Severe Thunderstorm Warning | FSD | Buena Vista, Cherokee, Clay, O'Brien | 50 min |
| Jul 18, 12:58 AM CDT | Severe Thunderstorm Warning | DMX | Calhoun, Pocahontas, Sac, Webster | 62 min |
| Jul 18, 1:10 AM CDT | Severe Thunderstorm Warning | DMX | Boone, Hamilton, Humboldt, Story, Webster, Wright | 65 min |
| Jul 18, 1:39 AM CDT | Severe Thunderstorm Warning | DMX | Boone, Calhoun, Greene, Webster | 51 min |
| Jul 18, 1:42 AM CDT | Severe Thunderstorm Warning | OAX | Harrison, Monona | 48 min |
| Jul 18, 2:08 AM CDT | Severe Thunderstorm Warning | DMX | Boone, Hamilton, Story | 52 min |
| Jul 18, 2:17 AM CDT | Severe Thunderstorm Warning | DMX | Hamilton, Hardin, Marshall, Story | 58 min |
| Jul 18, 2:20 AM CDT | Severe Thunderstorm Warning | DMX | Audubon, Calhoun, Carroll, Greene, Guthrie, Sac | 43 min |
| Jul 18, 2:22 AM CDT | Severe Thunderstorm Warning | DMX | Audubon, Carroll, Crawford | 53 min |
| Jul 18, 2:35 AM CDT | Severe Thunderstorm Warning | DMX | Boone, Dallas, Jasper, Polk, Story | 40 min |
| Jul 18, 2:55 AM CDT | Severe Thunderstorm Warning | DMX | Boone, Jasper, Marion, Marshall, Polk, Story | 50 min |
| Jul 18, 3:00 AM CDT | Severe Thunderstorm Warning | DMX | Dallas, Jasper, Madison, Marion, Monroe, Polk and 1 more | 45 min |
| Jul 18, 3:14 AM CDT | Severe Thunderstorm Warning | DMX | Jasper, Marshall, Story, Tama | 46 min |
| Jul 18, 3:19 AM CDT | Severe Thunderstorm Warning | DMX | Clarke, Lucas, Madison, Union, Warren | 41 min |
| Jul 18, 3:24 AM CDT | Severe Thunderstorm Warning | DMX | Audubon, Carroll, Greene, Guthrie | 51 min |
| Jul 18, 3:44 AM CDT | Severe Thunderstorm Warning | DMX | Jasper, Lucas, Madison, Mahaska, Marion, Marshall and 4 more | 61 min |
| Jul 18, 4:40 AM CDT | Severe Thunderstorm Warning | DMX | Appanoose, Davis, Lucas, Monroe, Wapello, Wayne | 65 min |
| Jul 18, 5:29 AM CDT | Severe Thunderstorm Warning | DVN | Van Buren | 61 min |
| Jul 18, 5:34 AM CDT | Severe Thunderstorm Warning | DVN | Jefferson | 41 min |
| Jul 18, 6:09 AM CDT | Severe Thunderstorm Warning | DVN | Des Moines, Henry, Jefferson, Lee, Van Buren | 96 min |
| Jul 19, 2:59 AM CDT | Severe Thunderstorm Warning | OAX | Monona | 61 min |
| Jul 19, 3:38 AM CDT | Severe Thunderstorm Warning | OAX | Shelby | 39 min |
| Jul 19, 7:35 AM CDT | Severe Thunderstorm Warning | DMX | Appanoose, Davis | 40 min |
| Jul 19, 7:09 PM CDT | Severe Thunderstorm Warning | DMX | Wapello | 36 min |
| Jul 19, 7:14 PM CDT | Severe Thunderstorm Warning | DVN | Des Moines, Lee | 61 min |
| Jul 19, 8:46 PM CDT | Severe Thunderstorm Warning | DVN | Van Buren | 59 min |
| Jul 20, 1:23 AM CDT | Severe Thunderstorm Warning | OAX | Mills, Pottawattamie | 26 min |
| Jul 20, 2:21 AM CDT | Severe Thunderstorm Warning | OAX | Montgomery, Pottawattamie | 39 min |
| Jul 20, 2:37 AM CDT | Severe Thunderstorm Warning | DMX | Clarke, Madison, Warren | 53 min |
| Jul 20, 3:28 AM CDT | Severe Thunderstorm Warning | DMX | Clarke, Decatur, Union | 47 min |
| Jul 22, 12:29 AM CDT | Severe Thunderstorm Warning | FSD | Cherokee, O'Brien, Plymouth, Sioux | 46 min |
| Jul 22, 1:39 AM CDT | Severe Thunderstorm Warning | FSD | Buena Vista, Cherokee, Clay, Ida | 51 min |
| Jul 22, 2:24 AM CDT | Severe Thunderstorm Warning | DMX | Palo Alto, Pocahontas | 51 min |
| Jul 22, 3:57 AM CDT | Severe Thunderstorm Warning | DMX | Wright | 33 min |
| Jul 22, 8:47 PM CDT | Severe Thunderstorm Warning | DVN | Dubuque, Jackson | 43 min |
| Jul 23, 3:27 PM CDT | Severe Thunderstorm Warning | DVN | Louisa, Muscatine, Scott | 48 min |
| Jul 23, 4:11 PM CDT | Severe Thunderstorm Warning | DVN | Scott | 52 min |
| Jul 23, 7:03 PM CDT | Severe Thunderstorm Warning | DMX | Dallas, Madison | 42 min |
| Jul 23, 7:05 PM CDT | Severe Thunderstorm Warning | DMX | Dallas, Polk | 40 min |
| Jul 23, 8:56 PM CDT | Severe Thunderstorm Warning | DMX | Marion, Warren | 49 min |
| Jul 23, 9:04 PM CDT | Severe Thunderstorm Warning | DVN | Jones, Linn | 41 min |
| Jul 23, 9:44 PM CDT | Severe Thunderstorm Warning | FSD | Lyon | 46 min |
| Jul 23, 11:38 PM CDT | Severe Thunderstorm Warning | FSD | Buena Vista, Clay, Dickinson, O'Brien, Osceola | 42 min |
| Jul 23, 11:43 PM CDT | Severe Thunderstorm Warning | DMX | Emmet, Kossuth, Palo Alto | 47 min |
| Jul 24, 2:29 AM CDT | Severe Thunderstorm Warning | DMX | Black Hawk, Bremer, Butler, Grundy | 46 min |
| Jul 24, 1:00 PM CDT | Severe Thunderstorm Warning | DVN | Lee | 60 min |
| Aug 3, 12:54 AM CDT | Severe Thunderstorm Warning | DMX | Adair, Audubon, Guthrie | 37 min |
| Aug 3, 9:24 PM CDT | Severe Thunderstorm Warning | OAX | Pottawattamie | 51 min |
| Aug 3, 9:52 PM CDT | Severe Thunderstorm Warning | OAX | Pottawattamie | 38 min |
| Aug 3, 10:15 PM CDT | Severe Thunderstorm Warning | OAX | Mills | 45 min |
| Aug 3, 10:30 PM CDT | Severe Thunderstorm Warning | OAX | Mills, Pottawattamie | 30 min |
| Aug 3, 10:53 PM CDT | Severe Thunderstorm Warning | DMX | Adair, Cass, Dallas, Guthrie, Madison | 52 min |
| Aug 3, 10:53 PM CDT | Severe Thunderstorm Warning | OAX | Montgomery, Page | 52 min |
| Aug 3, 11:38 PM CDT | Severe Thunderstorm Warning | DMX | Madison, Warren | 52 min |
| Aug 4, 12:10 AM CDT | Severe Thunderstorm Warning | OAX | Fremont | 35 min |
| Aug 4, 12:30 AM CDT | Severe Thunderstorm Warning | OAX | Page | 30 min |
| Aug 4, 3:57 AM CDT | Severe Thunderstorm Warning | DVN | Clinton, Scott | 45 min |
| Aug 8, 6:40 PM CDT | Severe Thunderstorm Warning | FSD | Plymouth, Woodbury | 65 min |
| Aug 8, 7:07 PM CDT | Severe Thunderstorm Warning | FSD | Cherokee, Plymouth, Woodbury | 38 min |
| Aug 8, 7:32 PM CDT | Severe Thunderstorm Warning | FSD | Cherokee, Ida, Plymouth, Woodbury | 28 min |
| Aug 8, 7:43 PM CDT | Severe Thunderstorm Warning | DMX | Carroll, Crawford, Sac | 62 min |
| Aug 8, 7:59 PM CDT | Severe Thunderstorm Warning | OAX | Monona | 46 min |
| Aug 8, 8:07 PM CDT | Severe Thunderstorm Warning | FSD | Buena Vista, Cherokee | 23 min |
| Aug 8, 8:13 PM CDT | Severe Thunderstorm Warning | DMX | Calhoun, Carroll, Greene, Pocahontas, Webster | 62 min |
| Aug 8, 8:28 PM CDT | Severe Thunderstorm Warning | FSD | Clay, Dickinson | 32 min |
| Aug 8, 8:42 PM CDT | Severe Thunderstorm Warning | DMX | Emmet, Humboldt, Kossuth, Palo Alto, Pocahontas | 63 min |
| Aug 8, 9:00 PM CDT | Severe Thunderstorm Warning | DMX | Boone, Greene, Hamilton, Story, Webster | 60 min |
| Aug 8, 9:12 PM CDT | Severe Thunderstorm Warning | OAX | Harrison, Monona | 48 min |
| Aug 8, 9:36 PM CDT | Severe Thunderstorm Warning | DMX | Dallas, Guthrie | 54 min |
| Aug 8, 9:38 PM CDT | Severe Thunderstorm Warning | DMX | Franklin, Wright | 52 min |
| Aug 8, 9:48 PM CDT | Severe Thunderstorm Warning | DMX | Boone, Jasper, Marshall, Polk, Story | 57 min |
| Aug 8, 10:02 PM CDT | Severe Thunderstorm Warning | DMX | Boone | 13 min |
| Aug 8, 10:03 PM CDT | Severe Thunderstorm Warning | OAX | Harrison, Pottawattamie, Shelby | 57 min |
| Aug 8, 10:16 PM CDT | Severe Thunderstorm Warning | DMX | Grundy, Hardin, Marshall, Story, Tama | 44 min |
| Aug 8, 10:29 PM CDT | Severe Thunderstorm Warning | DMX | Adair, Dallas, Guthrie, Madison | 27 min |
| Aug 8, 10:30 PM CDT | Severe Thunderstorm Warning | OAX | Shelby | 30 min |
| Aug 8, 10:35 PM CDT | Severe Thunderstorm Warning | DMX | Audubon, Carroll, Crawford | 55 min |
| Aug 8, 10:41 PM CDT | Severe Thunderstorm Warning | DMX | Black Hawk, Bremer, Butler, Franklin | 64 min |
| Aug 8, 10:54 PM CDT | Severe Thunderstorm Warning | DMX | Black Hawk, Grundy, Marshall, Tama | 51 min |
| Aug 8, 11:10 PM CDT | Severe Thunderstorm Warning | DMX | Boone, Dallas, Greene, Guthrie | 50 min |
| Aug 8, 11:37 PM CDT | Severe Thunderstorm Warning | DVN | Benton, Buchanan, Delaware, Linn | 53 min |
| Aug 8, 11:43 PM CDT | Severe Thunderstorm Warning | ARX | Allamakee, Chickasaw, Clayton, Fayette, Howard, Winneshiek | 51 min |
| Aug 9, 12:35 AM CDT | Severe Thunderstorm Warning | DVN | Cedar, Clinton, Delaware, Dubuque, Jackson, Jones and 1 more | 55 min |
| Aug 10, 1:39 PM CDT | Severe Thunderstorm Warning | FSD | Dickinson | 36 min |
| Aug 10, 3:49 PM CDT | Severe Thunderstorm Warning | DMX | Calhoun, Pocahontas, Sac | 41 min |
| Aug 10, 4:30 PM CDT | Severe Thunderstorm Warning | DMX | Calhoun, Humboldt, Pocahontas, Webster | 45 min |
| Aug 10, 5:02 PM CDT | Severe Thunderstorm Warning | DMX | Humboldt, Webster, Wright | 43 min |
| Aug 10, 5:47 PM CDT | Severe Thunderstorm Warning | DMX | Hamilton, Humboldt, Webster, Wright | 43 min |
| Aug 10, 6:17 PM CDT | Severe Thunderstorm Warning | DMX | Calhoun, Pocahontas, Sac | 43 min |
| Aug 10, 6:25 PM CDT | Severe Thunderstorm Warning | DMX | Calhoun, Webster | 50 min |
| Aug 10, 8:29 PM CDT | Severe Thunderstorm Warning | DMX | Calhoun, Sac, Webster | 29 min |
| Aug 10, 8:58 PM CDT | Severe Thunderstorm Warning | DMX | Boone, Greene, Hamilton, Story, Webster | 47 min |
| Aug 10, 10:25 PM CDT | Severe Thunderstorm Warning | OAX | Mills, Pottawattamie | 50 min |
| Aug 10, 10:32 PM CDT | Severe Thunderstorm Warning | DMX | Boone, Polk, Story | 43 min |
| Aug 10, 11:02 PM CDT | Severe Thunderstorm Warning | OAX | Pottawattamie | 43 min |
| Aug 10, 11:24 PM CDT | Severe Thunderstorm Warning | DMX | Adair, Cass | 51 min |
| Aug 10, 11:54 PM CDT | Severe Thunderstorm Warning | DMX | Adair, Dallas, Guthrie, Madison | 51 min |
| Aug 11, 12:29 AM CDT | Severe Thunderstorm Warning | DMX | Boone, Dallas, Polk, Story | 46 min |
| Aug 11, 1:05 AM CDT | Severe Thunderstorm Warning | DMX | Jasper, Polk | 40 min |
| Aug 13, 12:56 PM CDT | Severe Thunderstorm Warning | DVN | Benton, Iowa | 64 min |
| Aug 13, 1:00 PM CDT | Severe Thunderstorm Warning | DMX | Poweshiek | 30 min |
| Aug 13, 1:23 PM CDT | Severe Thunderstorm Warning | DMX | Appanoose, Wayne | 52 min |
| Aug 13, 1:37 PM CDT | Severe Thunderstorm Warning | DVN | Benton, Buchanan, Delaware, Linn | 53 min |
| Aug 13, 1:57 PM CDT | Severe Thunderstorm Warning | DMX | Appanoose | 48 min |
| Aug 13, 2:04 PM CDT | Severe Thunderstorm Warning | DMX | Davis | 56 min |
| Aug 13, 2:10 PM CDT | Severe Thunderstorm Warning | DMX | Wapello | 50 min |
| Aug 13, 2:15 PM CDT | Severe Thunderstorm Warning | DVN | Iowa, Johnson | 60 min |
| Aug 13, 2:20 PM CDT | Severe Thunderstorm Warning | DVN | Jefferson, Keokuk, Washington | 55 min |
| Aug 13, 2:24 PM CDT | Severe Thunderstorm Warning | DVN | Buchanan, Delaware, Dubuque, Jones, Linn | 48 min |
| Aug 13, 7:47 PM CDT | Severe Thunderstorm Warning | DMX | Appanoose, Monroe, Wayne | 43 min |
| Aug 13, 8:19 PM CDT | Severe Thunderstorm Warning | DMX | Davis, Wapello | 56 min |
| Aug 13, 9:03 PM CDT | Severe Thunderstorm Warning | DVN | Lee, Van Buren | 57 min |
| Aug 13, 9:43 PM CDT | Severe Thunderstorm Warning | DVN | Henry, Jefferson, Louisa, Washington | 22 min |
| Aug 13, 10:10 PM CDT | Severe Thunderstorm Warning | DVN | Lee | 65 min |
| Aug 19, 10:22 PM CDT | Severe Thunderstorm Warning | FSD | Lyon | 38 min |
| Aug 20, 2:24 PM CDT | Severe Thunderstorm Warning | DMX | Clarke, Lucas, Warren | 36 min |
| Aug 20, 2:51 PM CDT | Severe Thunderstorm Warning | DVN | Johnson | 29 min |
| Aug 20, 3:11 PM CDT | Severe Thunderstorm Warning | DMX | Appanoose, Lucas, Monroe, Wayne | 34 min |
| Aug 20, 4:31 PM CDT | Severe Thunderstorm Warning | DVN | Van Buren | 59 min |
| Aug 20, 4:59 PM CDT | Severe Thunderstorm Warning | DVN | Des Moines, Henry, Lee | 61 min |
| Aug 20, 5:30 PM CDT | Severe Thunderstorm Warning | DVN | Henry, Jefferson, Louisa, Van Buren, Washington | 42 min |
| Aug 31, 3:51 PM CDT | Severe Thunderstorm Warning | DMX | Palo Alto, Pocahontas | 39 min |
| Aug 31, 4:13 PM CDT | Severe Thunderstorm Warning | FSD | Buena Vista | 47 min |
| Aug 31, 4:34 PM CDT | Severe Thunderstorm Warning | OAX | Fremont | 41 min |
| Aug 31, 5:04 PM CDT | Severe Thunderstorm Warning | DMX | Winnebago, Worth | 56 min |
| Aug 31, 5:13 PM CDT | Severe Thunderstorm Warning | DMX | Humboldt, Kossuth, Palo Alto, Pocahontas | 47 min |
| Aug 31, 5:14 PM CDT | Severe Thunderstorm Warning | OAX | Fremont, Page | 46 min |
| Aug 31, 5:55 PM CDT | Severe Thunderstorm Warning | OAX | Fremont, Page | 50 min |
| Aug 31, 6:13 PM CDT | Severe Thunderstorm Warning | DMX | Cerro Gordo, Hancock | 47 min |
| Aug 31, 7:28 PM CDT | Severe Thunderstorm Warning | DMX | Carroll, Greene | 47 min |
| Aug 31, 7:50 PM CDT | Severe Thunderstorm Warning | DMX | Ringgold, Union | 55 min |
| Aug 31, 8:00 PM CDT | Severe Thunderstorm Warning | DMX | Boone | 45 min |
| Aug 31, 10:03 PM CDT | Severe Thunderstorm Warning | DVN | Benton, Buchanan, Iowa, Johnson, Linn | 57 min |
| Aug 31, 10:05 PM CDT | Severe Thunderstorm Warning | DMX | Jasper | 40 min |
| Aug 31, 10:30 PM CDT | Severe Thunderstorm Warning | DMX | Calhoun, Webster | 60 min |
| Sep 1, 8:43 PM CDT | Severe Thunderstorm Warning | OAX | Fremont | 24 min |
| Sep 1, 10:59 PM CDT | Severe Thunderstorm Warning | OAX | Fremont | 46 min |
| Sep 2, 5:38 PM CDT | Severe Thunderstorm Warning | DVN | Henry, Jefferson, Louisa, Washington | 40 min |
| Sep 5, 10:22 PM CDT | Severe Thunderstorm Warning | DVN | Scott | 53 min |
| Sep 6, 6:57 PM CDT | Severe Thunderstorm Warning | DMX | Bremer, Butler, Franklin, Grundy, Hardin | 48 min |
| Sep 6, 7:29 PM CDT | Severe Thunderstorm Warning | ARX | Chickasaw, Floyd, Howard | 46 min |
| Sep 10, 6:11 PM CDT | Severe Thunderstorm Warning | DMX | Davis | 12 min |
| Sep 12, 4:55 PM CDT | Severe Thunderstorm Warning | DVN | Dubuque, Jackson | 65 min |
| Sep 13, 2:27 PM CDT | Severe Thunderstorm Warning | DMX | Crawford | 46 min |
| Sep 13, 3:40 PM CDT | Severe Thunderstorm Warning | DMX | Dallas, Guthrie | 50 min |
| Sep 13, 4:04 PM CDT | Severe Thunderstorm Warning | DMX | Dallas, Guthrie | 26 min |
| Sep 13, 5:02 PM CDT | Severe Thunderstorm Warning | DMX | Adair, Adams, Union | 43 min |
| Sep 13, 6:06 PM CDT | Severe Thunderstorm Warning | DMX | Decatur, Lucas, Wayne | 39 min |
| Sep 13, 6:23 PM CDT | Severe Thunderstorm Warning | OAX | Fremont | 52 min |
| Sep 15, 5:17 PM CDT | Severe Thunderstorm Warning | FSD | Plymouth | 28 min |
| Sep 15, 5:38 PM CDT | Severe Thunderstorm Warning | DMX | Kossuth | 27 min |
| Sep 15, 5:39 PM CDT | Severe Thunderstorm Warning | FSD | Cherokee, Plymouth, Woodbury | 51 min |
| Sep 15, 6:21 PM CDT | Severe Thunderstorm Warning | FSD | Buena Vista, Cherokee, Ida | 54 min |
| Sep 15, 7:01 PM CDT | Severe Thunderstorm Warning | FSD | Ida, Woodbury | 44 min |
| Sep 15, 8:19 PM CDT | Severe Thunderstorm Warning | DMX | Calhoun, Carroll, Greene | 26 min |
| Sep 18, 11:20 AM CDT | Severe Thunderstorm Warning | OAX | Shelby | 25 min |
| Sep 18, 8:54 PM CDT | Severe Thunderstorm Warning | OAX | Page | 36 min |
| Sep 18, 9:25 PM CDT | Severe Thunderstorm Warning | OAX | Page | 35 min |
| Sep 18, 9:32 PM CDT | Severe Thunderstorm Warning | DMX | Taylor | 43 min |
| Sep 18, 9:59 PM CDT | Severe Thunderstorm Warning | OAX | Page | 31 min |
| Sep 18, 10:14 PM CDT | Severe Thunderstorm Warning | DMX | Taylor | 46 min |
| Sep 18, 10:46 PM CDT | Severe Thunderstorm Warning | DMX | Adair, Adams, Cass | 44 min |
| Sep 18, 10:58 PM CDT | Severe Thunderstorm Warning | OAX | Harrison, Pottawattamie | 47 min |
| Sep 18, 11:01 PM CDT | Severe Thunderstorm Warning | DMX | Ringgold, Taylor | 44 min |
| Sep 18, 11:18 PM CDT | Severe Thunderstorm Warning | DMX | Jasper, Polk | 42 min |
| Sep 18, 11:30 PM CDT | Severe Thunderstorm Warning | DMX | Adair, Adams, Cass | 45 min |
| Sep 18, 11:41 PM CDT | Severe Thunderstorm Warning | OAX | Harrison, Pottawattamie, Shelby | 49 min |
| Sep 18, 11:45 PM CDT | Severe Thunderstorm Warning | DMX | Ringgold, Taylor | 45 min |
| Sep 19, 12:10 AM CDT | Severe Thunderstorm Warning | DVN | Henry, Jefferson, Keokuk, Washington | 65 min |
| Sep 19, 12:15 AM CDT | Severe Thunderstorm Warning | DMX | Adair, Adams, Union | 45 min |
| Sep 19, 12:28 AM CDT | Severe Thunderstorm Warning | DMX | Decatur, Ringgold | 47 min |
| Sep 19, 12:32 AM CDT | Severe Thunderstorm Warning | OAX | Pottawattamie, Shelby | 43 min |
| Sep 19, 1:01 AM CDT | Severe Thunderstorm Warning | DMX | Clarke, Ringgold, Union | 44 min |
| Sep 19, 1:16 AM CDT | Severe Thunderstorm Warning | DMX | Decatur | 44 min |
| Sep 19, 1:19 AM CDT | Severe Thunderstorm Warning | OAX | Pottawattamie | 26 min |
| Sep 19, 1:21 AM CDT | Severe Thunderstorm Warning | DMX | Cass | 39 min |
| Sep 19, 2:04 AM CDT | Severe Thunderstorm Warning | OAX | Montgomery | 41 min |
| Sep 19, 2:27 AM CDT | Severe Thunderstorm Warning | DMX | Adams, Taylor | 48 min |
| Sep 19, 3:15 AM CDT | Severe Thunderstorm Warning | DMX | Adams, Ringgold, Taylor | 60 min |
| Sep 21, 12:55 PM CDT | Severe Thunderstorm Warning | DVN | Benton, Linn | 54 min |
| Sep 21, 1:12 PM CDT | Severe Thunderstorm Warning | DMX | Poweshiek | 33 min |
| Sep 21, 1:36 PM CDT | Severe Thunderstorm Warning | DVN | Benton, Iowa, Johnson, Linn | 54 min |
| Sep 21, 1:40 PM CDT | Severe Thunderstorm Warning | DVN | Delaware, Dubuque, Jackson, Jones | 65 min |
| Sep 21, 1:46 PM CDT | Severe Thunderstorm Warning | DMX | Clarke, Decatur, Union | 59 min |
| Sep 21, 2:04 PM CDT | Severe Thunderstorm Warning | DMX | Lucas | 45 min |
| Sep 21, 2:08 PM CDT | Severe Thunderstorm Warning | DVN | Delaware, Dubuque | 45 min |
| Sep 21, 2:31 PM CDT | Severe Thunderstorm Warning | DVN | Cedar, Johnson, Muscatine | 43 min |
| Sep 21, 3:09 PM CDT | Severe Thunderstorm Warning | DVN | Clinton, Scott | 39 min |
| Sep 21, 3:18 PM CDT | Severe Thunderstorm Warning | DVN | Scott | 57 min |
| Sep 21, 3:45 PM CDT | Severe Thunderstorm Warning | DVN | Clinton, Jackson | 50 min |
| Sep 22, 11:29 AM CDT | Severe Thunderstorm Warning | FSD | Plymouth | 46 min |
| Sep 22, 12:05 PM CDT | Severe Thunderstorm Warning | FSD | Plymouth, Sioux | 40 min |
| Sep 22, 12:40 PM CDT | Severe Thunderstorm Warning | FSD | Sioux | 50 min |
| Sep 22, 2:30 PM CDT | Severe Thunderstorm Warning | FSD | Lyon, Sioux | 45 min |
| Sep 22, 3:00 PM CDT | Severe Thunderstorm Warning | FSD | Lyon, Osceola, Sioux | 45 min |
| Sep 22, 3:08 PM CDT | Severe Thunderstorm Warning | FSD | Lyon | 23 min |
| Sep 22, 4:09 PM CDT | Severe Thunderstorm Warning | FSD | Lyon, Sioux | 36 min |
| Sep 22, 4:40 PM CDT | Severe Thunderstorm Warning | FSD | Lyon, O'Brien, Osceola, Sioux | 35 min |
| Sep 22, 5:11 PM CDT | Severe Thunderstorm Warning | FSD | Clay, Dickinson, O'Brien, Osceola | 34 min |
| Sep 22, 5:41 PM CDT | Severe Thunderstorm Warning | FSD | Buena Vista, Clay, O'Brien | 34 min |
| Sep 22, 6:12 PM CDT | Severe Thunderstorm Warning | FSD | Buena Vista, Clay | 10 min |
| Sep 25, 7:39 AM CDT | Severe Thunderstorm Warning | FSD | Cherokee, Plymouth, Woodbury | 51 min |
| Oct 23, 3:49 PM CDT | Severe Thunderstorm Warning | DMX | Appanoose | 41 min |
| Oct 23, 5:03 PM CDT | Severe Thunderstorm Warning | FSD | Plymouth | 27 min |
| Oct 23, 5:06 PM CDT | Severe Thunderstorm Warning | FSD | Plymouth, Sioux | 39 min |
| Oct 23, 5:18 PM CDT | Severe Thunderstorm Warning | DMX | Monroe | 30 min |
| Oct 23, 6:12 PM CDT | Severe Thunderstorm Warning | FSD | O'Brien, Sioux | 33 min |
| Oct 23, 6:30 PM CDT | Severe Thunderstorm Warning | FSD | Osceola | 12 min |
| Oct 26, 5:46 AM CDT | Severe Thunderstorm Warning | DVN | Clinton, Jackson | 44 min |
| Nov 22, 11:57 AM CST | Severe Thunderstorm Warning | DVN | Des Moines, Lee | 33 min |
| Nov 22, 12:26 PM CST | Severe Thunderstorm Warning | DVN | Des Moines, Lee | 34 min |
| Nov 22, 1:12 PM CST | Severe Thunderstorm Warning | DVN | Jackson | 13 min |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Guthrie County37
- Webster County34
- Lucas County31
- Dallas County30
- Pottawattamie County30
- Clarke County29
- Lee County29
- Adair County29
- Wright County29
- Madison County28
- Humboldt County28
- Warren County27
- Jasper County27
- Carroll County27
- Boone County27
- Greene County27
- Hamilton County27
- Appanoose County26
- Pocahontas County26
- Kossuth County26
- Monroe County25
- Marion County25
- Polk County25
- Des Moines County24
- Cherokee County24
- Palo Alto County24
- Plymouth County24
- Calhoun County24
- Story County23
- Buena Vista County23
- Clay County23
- Union County22
- Jackson County22
- Audubon County22
- Sioux County22
- Linn County21
- Van Buren County21
- Clinton County21
- Hancock County21
- Henry County21
59 more counties
- Ringgold County20
- Cass County20
- Lyon County20
- Davis County20
- Wayne County19
- Louisa County19
- Delaware County19
- Fremont County19
- Mills County19
- Page County19
- O'Brien County19
- Marshall County18
- Wapello County18
- Jefferson County18
- Scott County18
- Franklin County18
- Mahaska County17
- Washington County17
- Taylor County17
- Butler County17
- Grundy County17
- Sac County17
- Johnson County16
- Muscatine County16
- Dubuque County16
- Adams County16
- Woodbury County16
- Decatur County15
- Buchanan County15
- Jones County15
- Montgomery County15
- Tama County14
- Benton County14
- Harrison County14
- Cerro Gordo County14
- Ida County14
- Black Hawk County13
- Shelby County13
- Crawford County13
- Emmet County13
- Hardin County13
- Bremer County12
- Fayette County12
- Poweshiek County12
- Osceola County12
- Keokuk County11
- Iowa County11
- Monona County11
- Cedar County11
- Howard County11
- Dickinson County11
- Chickasaw County9
- Winnebago County9
- Winneshiek County8
- Worth County8
- Allamakee County7
- Clayton County7
- Floyd County7
- Mitchell County7
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordThe radar archive20092011
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.