Alert archive / Iowa / Severe Thunderstorm Warnings / 2011
Severe Thunderstorm Warnings in Iowa, April 2011
65 severe thunderstorm warnings in April 2011. An alert counts here when it covered any part of the state, so the counties below add up to more than the state. The archive of severe thunderstorm warnings reaches back to 1986.
Severe Thunderstorm Warnings by county
Each county as a circle sized by its count in April 2011. Tap one for its archive.
- Severe Thunderstorm Warnings
- 65
- Busiest day
- April 10, 201140 severe thunderstorm warnings
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 |
|---|---|---|---|---|
| Apr 3, 6:00 PM CDT | Severe Thunderstorm Warning | DMX | Mahaska | 45 min |
| Apr 3, 6:06 PM CDT | Severe Thunderstorm Warning | DVN | Benton, Iowa, Johnson, Linn | 39 min |
| Apr 3, 6:14 PM CDT | Severe Thunderstorm Warning | DMX | Poweshiek | 31 min |
| Apr 3, 6:30 PM CDT | Severe Thunderstorm Warning | DVN | Iowa, Jefferson, Johnson, Keokuk, Linn, Louisa and 2 more | 45 min |
| Apr 3, 6:36 PM CDT | Severe Thunderstorm Warning | DMX | Mahaska, Monroe, Wapello | 24 min |
| Apr 3, 6:51 PM CDT | Severe Thunderstorm Warning | DVN | Delaware, Dubuque, Jackson, Jones, Linn | 39 min |
| Apr 3, 6:59 PM CDT | Severe Thunderstorm Warning | DVN | Cedar, Clinton, Jackson, Jones | 46 min |
| Apr 3, 7:13 PM CDT | Severe Thunderstorm Warning | DVN | Iowa, Johnson, Keokuk, Washington | 51 min |
| Apr 3, 7:24 PM CDT | Severe Thunderstorm Warning | DVN | Delaware, Dubuque | 21 min |
| Apr 3, 7:59 PM CDT | Severe Thunderstorm Warning | DVN | Cedar, Henry, Jefferson, Johnson, Louisa, Muscatine and 1 more | 34 min |
| Apr 3, 8:07 PM CDT | Severe Thunderstorm Warning | DVN | Dubuque, Jackson, Jones | 29 min |
| Apr 3, 8:28 PM CDT | Severe Thunderstorm Warning | DVN | Des Moines, Louisa, Muscatine, Scott | 46 min |
| Apr 3, 8:33 PM CDT | Severe Thunderstorm Warning | OAX | Page | 15 min |
| Apr 3, 8:36 PM CDT | Severe Thunderstorm Warning | DMX | Taylor | 24 min |
| Apr 3, 8:51 PM CDT | Severe Thunderstorm Warning | DMX | Adams, Union | 24 min |
| Apr 3, 8:51 PM CDT | Severe Thunderstorm Warning | DVN | Scott | 54 min |
| Apr 3, 9:36 PM CDT | Severe Thunderstorm Warning | DVN | Des Moines, Lee | 38 min |
| Apr 9, 6:09 PM CDT | Severe Thunderstorm Warning | FSD | Woodbury | 36 min |
| Apr 9, 6:16 PM CDT | Severe Thunderstorm Warning | OAX | Monona | 14 min |
| Apr 9, 6:33 PM CDT | Severe Thunderstorm Warning | OAX | Monona | 27 min |
| Apr 9, 6:41 PM CDT | Severe Thunderstorm Warning | FSD | Woodbury | 34 min |
| Apr 9, 6:55 PM CDT | Severe Thunderstorm Warning | OAX | Monona | 17 min |
| Apr 9, 7:09 PM CDT | Severe Thunderstorm Warning | FSD | Ida, Woodbury | 36 min |
| Apr 9, 7:44 PM CDT | Severe Thunderstorm Warning | FSD | Ida | 31 min |
| Apr 9, 7:46 PM CDT | Severe Thunderstorm Warning | FSD | Cherokee, Ida, Woodbury | 29 min |
| Apr 9, 8:08 PM CDT | Severe Thunderstorm Warning | FSD | Buena Vista, Cherokee, Ida, Woodbury | 37 min |
| Apr 9, 8:11 PM CDT | Severe Thunderstorm Warning | FSD | Ida | 34 min |
| Apr 9, 8:19 PM CDT | Severe Thunderstorm Warning | FSD | Plymouth, Woodbury | 41 min |
| Apr 9, 8:40 PM CDT | Severe Thunderstorm Warning | FSD | Cherokee | 35 min |
| Apr 9, 8:41 PM CDT | Severe Thunderstorm Warning | FSD | Ida | 19 min |
| Apr 9, 8:49 PM CDT | Severe Thunderstorm Warning | FSD | Buena Vista | 41 min |
| Apr 9, 8:55 PM CDT | Severe Thunderstorm Warning | FSD | Plymouth, Woodbury | 35 min |
| Apr 9, 8:57 PM CDT | Severe Thunderstorm Warning | DMX | Kossuth, Palo Alto | 33 min |
| Apr 9, 9:08 PM CDT | Severe Thunderstorm Warning | FSD | Cherokee | 37 min |
| Apr 9, 9:15 PM CDT | Severe Thunderstorm Warning | FSD | Plymouth, Sioux | 30 min |
| Apr 9, 9:17 PM CDT | Severe Thunderstorm Warning | FSD | Plymouth, Woodbury | 43 min |
| Apr 9, 9:19 PM CDT | Severe Thunderstorm Warning | DMX | Sac | 26 min |
| Apr 9, 9:24 PM CDT | Severe Thunderstorm Warning | FSD | Cherokee, Plymouth, Woodbury | 36 min |
| Apr 9, 9:25 PM CDT | Severe Thunderstorm Warning | FSD | Buena Vista | 20 min |
| Apr 9, 9:36 PM CDT | Severe Thunderstorm Warning | FSD | Buena Vista, Cherokee, Clay | 39 min |
| Apr 9, 9:48 PM CDT | Severe Thunderstorm Warning | DMX | Hancock, Kossuth, Winnebago | 42 min |
| Apr 9, 9:58 PM CDT | Severe Thunderstorm Warning | FSD | Plymouth | 32 min |
| Apr 9, 10:09 PM CDT | Severe Thunderstorm Warning | FSD | Buena Vista | 36 min |
| Apr 9, 10:24 PM CDT | Severe Thunderstorm Warning | FSD | Cherokee, O'Brien, Plymouth, Sioux | 36 min |
| Apr 9, 10:35 PM CDT | Severe Thunderstorm Warning | FSD | Buena Vista, Clay | 30 min |
| Apr 9, 10:58 PM CDT | Severe Thunderstorm Warning | DMX | Cerro Gordo, Worth | 25 min |
| Apr 9, 11:08 PM CDT | Severe Thunderstorm Warning | ARX | Mitchell | 52 min |
| Apr 9, 11:11 PM CDT | Severe Thunderstorm Warning | FSD | Buena Vista, Clay | 34 min |
| Apr 9, 11:15 PM CDT | Severe Thunderstorm Warning | ARX | Howard, Winneshiek | 45 min |
| Apr 9, 11:24 PM CDT | Severe Thunderstorm Warning | DMX | Emmet, Kossuth, Palo Alto | 36 min |
| Apr 9, 11:41 PM CDT | Severe Thunderstorm Warning | DMX | Kossuth, Winnebago | 49 min |
| Apr 9, 11:58 PM CDT | Severe Thunderstorm Warning | DMX | Winnebago, Worth | 32 min |
| Apr 10, 12:15 AM CDT | Severe Thunderstorm Warning | OAX | Monona | 33 min |
| Apr 10, 12:24 AM CDT | Severe Thunderstorm Warning | DMX | Hancock, Kossuth, Winnebago, Worth | 31 min |
| Apr 10, 12:24 AM CDT | Severe Thunderstorm Warning | FSD | Woodbury | 36 min |
| Apr 10, 12:47 AM CDT | Severe Thunderstorm Warning | FSD | Cherokee, Ida | 28 min |
| Apr 10, 12:53 AM CDT | Severe Thunderstorm Warning | DMX | Worth | 22 min |
| Apr 10, 1:07 AM CDT | Severe Thunderstorm Warning | DMX | Sac | 38 min |
| Apr 10, 1:38 AM CDT | Severe Thunderstorm Warning | DMX | Calhoun, Humboldt, Pocahontas, Webster | 52 min |
| Apr 10, 3:39 PM CDT | Severe Thunderstorm Warning | ARX | Howard | 41 min |
| Apr 10, 4:11 PM CDT | Severe Thunderstorm Warning | ARX | Winneshiek | 34 min |
| Apr 10, 5:03 PM CDT | Severe Thunderstorm Warning | ARX | Allamakee | 27 min |
| Apr 10, 8:35 PM CDT | Severe Thunderstorm Warning | DVN | Louisa | 55 min |
| Apr 19, 3:11 AM CDT | Severe Thunderstorm Warning | OAX | Fremont | 34 min |
| Apr 19, 4:46 AM CDT | Severe Thunderstorm Warning | DMX | Ringgold, Taylor | 24 min |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Woodbury County10
- Cherokee County8
- Ida County7
- Buena Vista County7
- Plymouth County7
- Kossuth County5
- Johnson County4
- Louisa County4
- Monona County4
- Winnebago County4
- Worth County4
- Iowa County3
- Linn County3
- Muscatine County3
- Washington County3
- Dubuque County3
- Jackson County3
- Jones County3
- Clay County3
- Mahaska County2
- Jefferson County2
- Keokuk County2
- Delaware County2
- Cedar County2
- Des Moines County2
- Scott County2
- Taylor County2
- Palo Alto County2
- Sioux County2
- Sac County2
- Hancock County2
- Howard County2
- Winneshiek County2
- Benton County1
- Poweshiek County1
- Monroe County1
- Wapello County1
- Clinton County1
- Henry County1
- Page County1
Nearby
Alerts in force nowTornadoes on recordThe radar archive20102012
Sources
National Weather Service watches, warnings, advisories and statements from the Iowa Environmental Mesonet's VTEC archive, which reconstructs tornado, severe thunderstorm, flash flood and marine warnings back to 1986 from the NWS text archive. Storm Prediction Center watches and mesoscale discussions from SPC's archive through the Mesonet. County centers from the US Census Bureau. Warning verification from the Mesonet's Cow. Rebuilt daily.