The severe wind outbreak of April 19, 2011
378 wind reportsIndiana, Illinois, Kentucky and 6 more states
378 damaging wind reports across 9 states between 1:43 AM and 12:59 AM the next day CDT, 75 of them 65 knots (75 mph) or stronger; the strongest measured gust was 96 mph in Johnson County, IL. 469 hail reports and 70 tornadoes the same day.
Watch the day unfoldSevere wind day · April 19, 2011
How the day unfolded
Every damaging wind report of the day at its logged time, with the day's hail reports and tornadoes, and the counties they reached.
The day in numbers
- Wind reports
- 378
- on Tuesday, April 19, 2011
- 75 mph or more
- 75
- 21 of 86 mph (75 knots) or more
- Strongest measured gust
- 96 mph
- 83 knots, Johnson County, IL
- Measured
- 56
- reports with an instrument reading; the rest are estimates from damage
- Killed by wind
- 0
- 7 injured
- Counties reporting
- 217
- in 9 states
Hour by hour
Damaging wind reports in each hour, Central Daylight Time.
The strongest winds
The 100 strongest reports with a speed. Measured gusts come from an instrument; estimated speeds are judged from damage.
| 9:10 PM | Hamilton County IL | 120 mph | Estimated |
| 9:20 PM | White County IL | 120 mph | Estimated |
| 9:32 PM | White County IL | 120 mph | Estimated |
| 12:14 AM | Boone County KY | 100 mph | Estimated |
| 12:15 AM | Simpson County KY | 100 mph | Estimated |
| 12:15 AM | Logan County KY | 100 mph | Estimated |
| 12:59 AM | Brown County OH | 100 mph | Estimated |
| 8:50 PM | Johnson County IL | 96 mph | Measured |
| 9:03 PM | Independence County AR | 96 mph | Measured |
| 9:49 PM | Alexander County IL | 96 mph | Measured |
| 8:25 PM | Cape Girardeau County MO | 90 mph | Estimated |
| 8:42 PM | Franklin County IL | 90 mph | Estimated |
| 9:22 PM | Gallatin County IL | 90 mph | Estimated |
| 9:30 PM | White County IL | 90 mph | Estimated |
| 9:34 PM | Edwards County IL | 90 mph | Estimated |
| 9:38 PM | Posey County IN | 90 mph | Estimated |
| 9:50 PM | Gibson County IN | 90 mph | Estimated |
| 9:54 PM | Wabash County IL | 90 mph | Estimated |
| 10:49 PM | Orange County IN | 90 mph | Estimated |
| 8:34 PM | Perry County IL | 87 mph | Measured |
| 9:10 PM | Wayne County IL | 86 mph | Estimated |
| 9:07 PM | Jefferson County IL | 85 mph | Estimated |
| 11:30 PM | Shelby County IN | 85 mph | Estimated |
| 7:57 PM | Edgar County IL | 81 mph | Estimated |
| 8:05 PM | Perry County MO | 81 mph | Estimated |
| 8:05 PM | Vermilion County IL | 81 mph | Estimated |
| 8:30 PM | Jackson County IL | 81 mph | Estimated |
| 8:36 PM | Jackson County IL | 81 mph | Estimated |
| 8:40 PM | Montgomery County IN | 81 mph | Estimated |
| 9:00 PM | Boone County IN | 81 mph | Estimated |
| 9:08 PM | Saline County IL | 81 mph | Estimated |
| 9:08 PM | Pope County IL | 81 mph | Estimated |
| 9:24 PM | Wayne County IL | 81 mph | Estimated |
| 9:32 PM | White County IL | 81 mph | Estimated |
| 9:33 PM | White County IL | 81 mph | Estimated |
| 9:38 PM | Posey County IN | 81 mph | Estimated |
| 10:12 PM | Spencer County IN | 81 mph | Estimated |
| 10:35 PM | Spencer County IN | 81 mph | Estimated |
| 10:56 PM | Lawrence County IN | 81 mph | Estimated |
| 11:30 PM | Gibson County TN | 81 mph | Estimated |
| 12:03 AM | Switzerland County IN | 81 mph | Estimated |
| 12:53 AM | Clinton County OH | 79 mph | Measured |
| 8:54 PM | Clinton County IL | 77 mph | Measured |
| 8:55 PM | Marion County IL | 77 mph | Measured |
| 8:55 PM | Marion County IL | 77 mph | Measured |
| 9:52 PM | Vanderburgh County IN | 76 mph | Measured |
| 5:37 PM | Greene County IL | 75 mph | Measured |
| 7:51 PM | Jefferson County MO | 75 mph | Measured |
| 8:55 PM | Johnson County IL | 75 mph | Measured |
| 1:30 PM | Rock County WI | 75 mph | Estimated |
| 7:55 PM | Bollinger County MO | 75 mph | Estimated |
| 8:08 PM | Cape Girardeau County MO | 75 mph | Estimated |
| 8:25 PM | Benton County IN | 75 mph | Estimated |
| 8:26 PM | Benton County IN | 75 mph | Estimated |
| 8:47 PM | Franklin County IL | 75 mph | Estimated |
| 8:54 PM | Franklin County IL | 75 mph | Estimated |
| 8:58 PM | White County IN | 75 mph | Estimated |
| 9:00 PM | Clinton County IN | 75 mph | Estimated |
| 9:00 PM | Boone County IN | 75 mph | Estimated |
| 9:20 PM | Cass County IN | 75 mph | Estimated |
| 9:22 PM | Cass County IN | 75 mph | Estimated |
| 9:40 PM | Wabash County IN | 75 mph | Estimated |
| 9:51 PM | Grant County IN | 75 mph | Estimated |
| 9:54 PM | Blackford County IN | 75 mph | Estimated |
| 9:55 PM | New Madrid County MO | 75 mph | Estimated |
| 9:58 PM | Huntington County IN | 75 mph | Estimated |
| 10:00 PM | Wells County IN | 75 mph | Estimated |
| 10:17 PM | Jay County IN | 75 mph | Estimated |
| 10:25 PM | Daviess County KY | 75 mph | Estimated |
| 10:52 PM | Shelby County TN | 75 mph | Estimated |
| 10:54 PM | Greene County IN | 75 mph | Estimated |
| 11:00 PM | Dyer County TN | 75 mph | Estimated |
| 11:00 PM | Tipton County TN | 75 mph | Estimated |
| 11:07 PM | Henry County OH | 75 mph | Estimated |
| 11:40 PM | Madison County TN | 75 mph | Estimated |
| 11:45 PM | Madison County TN | 74 mph | Measured |
| 12:40 AM | Hamilton County OH | 72 mph | Measured |
| 12:45 AM | Christian County KY | 71 mph | Measured |
| 7:45 PM | Madison County MO | 70 mph | Measured |
| 9:07 PM | Saline County IL | 70 mph | Measured |
| 9:20 PM | Cape Girardeau County MO | 70 mph | Measured |
| 6:00 PM | Sangamon County IL | 70 mph | Estimated |
| 6:02 PM | Sangamon County IL | 70 mph | Estimated |
| 6:05 PM | Sangamon County IL | 70 mph | Estimated |
| 6:06 PM | Sangamon County IL | 70 mph | Estimated |
| 6:21 PM | Christian County IL | 70 mph | Estimated |
| 6:25 PM | Sangamon County IL | 70 mph | Estimated |
| 6:30 PM | Sangamon County IL | 70 mph | Estimated |
| 6:30 PM | Christian County IL | 70 mph | Estimated |
| 6:40 PM | Logan County IL | 70 mph | Estimated |
| 6:48 PM | Macon County IL | 70 mph | Estimated |
| 6:50 PM | Macon County IL | 70 mph | Estimated |
| 6:55 PM | Macon County IL | 70 mph | Estimated |
| 7:05 PM | Piatt County IL | 70 mph | Estimated |
| 7:25 PM | Piatt County IL | 70 mph | Estimated |
| 7:25 PM | Douglas County IL | 70 mph | Estimated |
| 7:30 PM | Pope County AR | 70 mph | Estimated |
| 7:30 PM | Champaign County IL | 70 mph | Estimated |
| 7:35 PM | Douglas County IL | 70 mph | Estimated |
| 7:36 PM | Wayne County MO | 70 mph | Estimated |
By state
Counties with the most wind reports
- White CountyIL · 7 reports
- Clinton CountyIN · 6 reports
- Sangamon CountyIL · 6 reports
- Jefferson CountyIL · 6 reports
- Benton CountyIN · 5 reports
- Marion CountyIL · 5 reports
- Boone CountyIN · 5 reports
- Saline CountyAR · 5 reports
- Hamilton CountyOH · 5 reports
- Cape Girardeau CountyMO · 5 reports
Hail and tornadoes that day
469 hail reports, 43 of 2 inches or more; 70 tornadoes.
| 4:35 PM | Pike County MO | 4.50 |
| 6:25 PM | Ozark County MO | 4.50 |
| 3:50 PM | Atoka County OK | 4.25 |
| 8:43 PM | Hill County TX | 3.50 |
| 4:45 PM | Washington County AR | 3.00 |
| 8:44 PM | Hill County TX | 3.00 |
| 6:29 AM | Jefferson County MO | 2.75 |
| 3:50 PM | Pike County MO | 2.75 |
| 4:55 PM | Carroll County AR | 2.75 |
| 5:37 PM | Greene County IL | 2.75 |
| 5:41 PM | St. Charles County MO | 2.75 |
| 6:05 PM | Howell County MO | 2.75 |
| 6:11 PM | Ozark County MO | 2.75 |
| 6:56 PM | Lamar County TX | 2.75 |
| 7:00 PM | Lamar County TX | 2.75 |
| 7:06 PM | Johnson County TX | 2.75 |
| 9:18 PM | Little River County AR | 2.75 |
| 6:18 AM | Jefferson County MO | 2.50 |
| 4:43 PM | Osage County MO | 2.50 |
| 4:59 PM | Calhoun County IL | 2.50 |
| 5:40 PM | Boone County AR | 2.50 |
| 6:05 PM | Douglas County MO | 2.50 |
| 6:15 PM | Pushmataha County OK | 2.50 |
| 6:35 PM | Taney County MO | 2.50 |
| 7:01 PM | Lamar County TX | 2.50 |
| 8:20 PM | Yell County AR | 2.50 |
| 8:41 PM | Hill County TX | 2.50 |
| 10:55 PM | Red River County TX | 2.50 |
| 3:21 AM | Cole County MO | 2.00 |
| 6:40 AM | Monroe County IL | 2.00 |
| 4:10 PM | Bryan County OK | 2.00 |
| 4:30 PM | Pushmataha County OK | 2.00 |
| 4:39 PM | St. Charles County MO | 2.00 |
| 5:06 PM | Fannin County TX | 2.00 |
| 5:33 PM | Tarrant County TX | 2.00 |
| 6:01 PM | Ozark County MO | 2.00 |
| 6:10 PM | Gasconade County MO | 2.00 |
| 6:13 PM | Peoria County IL | 2.00 |
| 6:40 PM | Boone County AR | 2.00 |
| 6:48 PM | Howell County MO | 2.00 |
| 7:01 PM | Howell County MO | 2.00 |
| 7:33 PM | St. Louis County MO | 2.00 |
| 9:15 PM | Little River County AR | 2.00 |
| 3:50 AM | Cole County MO | 1.75 |
| 4:40 AM | Callaway County MO | 1.75 |
| 5:15 AM | Pike County IL | 1.75 |
| 5:34 AM | Warren County MO | 1.75 |
| 6:05 AM | Washington County MO | 1.75 |
| 6:09 AM | Jefferson County MO | 1.75 |
| 6:31 AM | Jefferson County MO | 1.75 |
The tornado outbreak of April 19, 2011: 70 tornadoes, each with its touchdown time and path.
2011 · On this date in other years · The biggest severe wind days
- A report is a single damage or measurement report to the National Weather Service. Several reports can describe one gust front, so reports are not storms.
- Reporting has grown with population, spotter networks and the internet, so counts from different decades are not directly comparable.
- Thunderstorm wind reports start at 50 knots (58 mph). SPC began flagging measured against estimated speeds in 2006; earlier reports are shown as estimated.
Storm Prediction Center severe weather database, 1955 to 2025. A day is SPC’s calendar date in Central Standard Time; a severe wind day here has 300 or more damaging wind reports, or 15 or more of 75 knots (86 mph) or more.