The severe wind outbreak of July 11, 2020
318 wind reportsOklahoma, Illinois, Iowa and 13 more states
318 damaging wind reports across 16 states between 1:06 AM and 12:50 AM the next day CDT, 40 of them 65 knots (75 mph) or stronger; the strongest measured gust was 81 mph in Rock Island County, IL. 231 hail reports and 5 tornadoes the same day.
Watch the day unfoldSevere wind day · July 11, 2020
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
- 318
- on Saturday, July 11, 2020
- 75 mph or more
- 40
- 4 of 86 mph (75 knots) or more
- Strongest measured gust
- 81 mph
- 70 knots, Rock Island County, IL
- Measured
- 58
- reports with an instrument reading; the rest are estimates from damage
- Killed by wind
- 0
- 0 injured
- Counties reporting
- 130
- in 16 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.
| 6:02 PM | Labette County KS | 90 mph | Estimated |
| 7:00 PM | Scott County IA | 90 mph | Estimated |
| 7:29 PM | Henry County IL | 90 mph | Estimated |
| 9:18 PM | Alfalfa County OK | 90 mph | Estimated |
| 12:22 AM | Cleveland County OK | 85 mph | Estimated |
| 12:25 AM | Pottawatomie County OK | 85 mph | Estimated |
| 8:25 PM | Mayes County OK | 82 mph | Estimated |
| 8:30 PM | Mayes County OK | 82 mph | Estimated |
| 7:12 PM | Rock Island County IL | 81 mph | Measured |
| 8:25 PM | Mayes County OK | 81 mph | Measured |
| 12:19 AM | Cleveland County OK | 81 mph | Measured |
| 10:20 AM | Linn County IA | 81 mph | Estimated |
| 6:05 PM | Jones County IA | 81 mph | Estimated |
| 7:02 PM | Clinton County IA | 81 mph | Estimated |
| 7:42 PM | Henry County IL | 81 mph | Estimated |
| 7:28 PM | Cochise County AZ | 79 mph | Measured |
| 9:49 PM | Grant County OK | 78 mph | Measured |
| 12:00 AM | Cleveland County OK | 78 mph | Measured |
| 3:07 PM | Nicollet County MN | 75 mph | Estimated |
| 5:50 PM | Labette County KS | 75 mph | Estimated |
| 6:00 PM | Linn County IA | 75 mph | Estimated |
| 6:00 PM | Linn County IA | 75 mph | Estimated |
| 6:04 PM | Linn County IA | 75 mph | Estimated |
| 6:18 PM | Jones County IA | 75 mph | Estimated |
| 6:35 PM | Cedar County IA | 75 mph | Estimated |
| 6:41 PM | Clinton County IA | 75 mph | Estimated |
| 6:50 PM | Clinton County IA | 75 mph | Estimated |
| 7:05 PM | Scott County IA | 75 mph | Estimated |
| 7:14 PM | Scott County IA | 75 mph | Estimated |
| 8:15 PM | Mayes County OK | 75 mph | Estimated |
| 8:23 PM | Rogers County OK | 75 mph | Estimated |
| 8:40 PM | Mayes County OK | 75 mph | Estimated |
| 8:57 PM | Tulsa County OK | 75 mph | Estimated |
| 9:20 PM | Adair County OK | 75 mph | Estimated |
| 9:32 PM | Tulsa County OK | 75 mph | Estimated |
| 9:48 PM | Tulsa County OK | 75 mph | Estimated |
| 10:04 PM | Okmulgee County OK | 75 mph | Estimated |
| 10:47 PM | McIntosh County OK | 75 mph | Estimated |
| 12:02 AM | Cleveland County OK | 75 mph | Estimated |
| 12:25 AM | Cleveland County OK | 75 mph | Estimated |
| 12:05 AM | Cleveland County OK | 74 mph | Measured |
| 12:33 PM | Kandiyohi County MN | 72 mph | Measured |
| 10:55 PM | Okmulgee County OK | 72 mph | Measured |
| 11:35 PM | Canadian County OK | 71 mph | Measured |
| 11:47 PM | Gray County TX | 71 mph | Measured |
| 12:10 AM | Grady County OK | 71 mph | Measured |
| 8:00 PM | Bureau County IL | 70 mph | Measured |
| 9:00 PM | Cherokee County OK | 70 mph | Measured |
| 10:09 PM | Sequoyah County OK | 70 mph | Measured |
| 11:40 PM | Grady County OK | 70 mph | Measured |
| 10:25 AM | Linn County IA | 70 mph | Estimated |
| 10:45 AM | Jones County IA | 70 mph | Estimated |
| 2:26 PM | White County IN | 70 mph | Estimated |
| 5:30 PM | Linn County IA | 70 mph | Estimated |
| 5:31 PM | Labette County KS | 70 mph | Estimated |
| 5:54 PM | Linn County IA | 70 mph | Estimated |
| 6:06 PM | Jones County IA | 70 mph | Estimated |
| 6:18 PM | Cherokee County KS | 70 mph | Estimated |
| 6:20 PM | Cedar County IA | 70 mph | Estimated |
| 6:30 PM | Cedar County IA | 70 mph | Estimated |
| 6:54 PM | Jones County IA | 70 mph | Estimated |
| 7:07 PM | Rock Island County IL | 70 mph | Estimated |
| 7:08 PM | Scott County IA | 70 mph | Estimated |
| 7:10 PM | Craig County OK | 70 mph | Estimated |
| 7:11 PM | Rock Island County IL | 70 mph | Estimated |
| 7:27 PM | Mercer County IL | 70 mph | Estimated |
| 7:50 PM | Knox County IL | 70 mph | Estimated |
| 8:05 PM | Stark County IL | 70 mph | Estimated |
| 8:10 PM | Mayes County OK | 70 mph | Estimated |
| 8:14 PM | Peoria County IL | 70 mph | Estimated |
| 8:17 PM | Mayes County OK | 70 mph | Estimated |
| 8:25 PM | Peoria County IL | 70 mph | Estimated |
| 8:25 PM | Peoria County IL | 70 mph | Estimated |
| 8:29 PM | Peoria County IL | 70 mph | Estimated |
| 8:30 PM | Peoria County IL | 70 mph | Estimated |
| 8:35 PM | Peoria County IL | 70 mph | Estimated |
| 8:35 PM | Peoria County IL | 70 mph | Estimated |
| 8:35 PM | Peoria County IL | 70 mph | Estimated |
| 8:35 PM | LaSalle County IL | 70 mph | Estimated |
| 8:40 PM | Tazewell County IL | 70 mph | Estimated |
| 8:40 PM | Peoria County IL | 70 mph | Estimated |
| 8:44 PM | Delaware County OK | 70 mph | Estimated |
| 8:45 PM | Peoria County IL | 70 mph | Estimated |
| 8:45 PM | Peoria County IL | 70 mph | Estimated |
| 8:45 PM | Woodford County IL | 70 mph | Estimated |
| 8:48 PM | Woodford County IL | 70 mph | Estimated |
| 8:50 PM | Tazewell County IL | 70 mph | Estimated |
| 8:50 PM | Woodford County IL | 70 mph | Estimated |
| 8:50 PM | Tazewell County IL | 70 mph | Estimated |
| 8:52 PM | Rogers County OK | 70 mph | Estimated |
| 8:55 PM | Woodford County IL | 70 mph | Estimated |
| 8:55 PM | Rogers County OK | 70 mph | Estimated |
| 9:00 PM | Tazewell County IL | 70 mph | Estimated |
| 9:00 PM | Tazewell County IL | 70 mph | Estimated |
| 9:00 PM | Woodford County IL | 70 mph | Estimated |
| 9:05 PM | McLean County IL | 70 mph | Estimated |
| 9:10 PM | Rogers County OK | 70 mph | Estimated |
| 9:10 PM | McLean County IL | 70 mph | Estimated |
| 9:10 PM | McLean County IL | 70 mph | Estimated |
| 9:11 PM | Washington County AR | 70 mph | Estimated |
By state
Counties with the most wind reports
- Linn CountyIA · 16 reports
- McLean CountyIL · 12 reports
- Le Flore CountyOK · 11 reports
- Peoria CountyIL · 11 reports
- Mayes CountyOK · 9 reports
- Cleveland CountyOK · 9 reports
- Scott CountyIA · 8 reports
- Canadian CountyOK · 7 reports
- Tulsa CountyOK · 6 reports
- Jones CountyIA · 6 reports
Hail and tornadoes that day
231 hail reports, 43 of 2 inches or more; 5 tornadoes.
| 1:55 PM | Wabaunsee County KS | 4.50 |
| 1:55 PM | Wabaunsee County KS | 4.00 |
| 3:07 PM | Coffey County KS | 4.00 |
| 6:10 PM | Wilson County KS | 4.00 |
| 1:00 PM | Wabaunsee County KS | 3.50 |
| 1:57 PM | Wabaunsee County KS | 3.00 |
| 3:37 PM | Anderson County KS | 3.00 |
| 1:00 PM | Pottawatomie County KS | 2.75 |
| 5:41 PM | Linn County IA | 2.75 |
| 5:54 PM | Wilson County KS | 2.75 |
| 5:59 PM | Wilson County KS | 2.75 |
| 1:50 PM | Sibley County MN | 2.50 |
| 2:00 PM | Jackson County MN | 2.50 |
| 2:00 PM | Jackson County MN | 2.50 |
| 3:24 PM | Palo Alto County IA | 2.50 |
| 3:34 PM | Butler County IA | 2.50 |
| 5:19 PM | Story County IA | 2.50 |
| 5:20 PM | Story County IA | 2.50 |
| 5:49 PM | Wilson County KS | 2.50 |
| 5:58 PM | Neosho County KS | 2.50 |
| 7:08 PM | Elk County KS | 2.50 |
| 7:55 PM | Peoria County IL | 2.50 |
| 1:45 AM | Custer County NE | 2.00 |
| 1:15 PM | Renville County MN | 2.00 |
| 2:00 PM | McLeod County MN | 2.00 |
| 2:05 PM | Shawnee County KS | 2.00 |
| 2:18 PM | Osage County KS | 2.00 |
| 2:24 PM | Pope County MN | 2.00 |
| 3:09 PM | Coffey County KS | 2.00 |
| 3:24 PM | Kossuth County IA | 2.00 |
| 3:39 PM | Anderson County KS | 2.00 |
| 3:51 PM | Butler County IA | 2.00 |
| 5:25 PM | Champaign County IL | 2.00 |
| 5:45 PM | Benton County IA | 2.00 |
| 5:48 PM | Wilson County KS | 2.00 |
| 5:55 PM | Story County IA | 2.00 |
| 6:18 PM | Labette County KS | 2.00 |
| 6:25 PM | Labette County KS | 2.00 |
| 7:00 PM | Labette County KS | 2.00 |
| 7:10 PM | Craig County OK | 2.00 |
| 7:20 PM | Craig County OK | 2.00 |
| 7:20 PM | Garfield County OK | 2.00 |
| 7:55 PM | Tazewell County IL | 2.00 |
| 9:50 AM | Buchanan County IA | 1.75 |
| 1:03 PM | Pottawatomie County KS | 1.75 |
| 1:27 PM | Pottawatomie County KS | 1.75 |
| 1:27 PM | Nobles County MN | 1.75 |
| 1:44 PM | Jackson County MN | 1.75 |
| 1:50 PM | Wabaunsee County KS | 1.75 |
| 1:56 PM | Jackson County MN | 1.75 |
- EF1 tornado1:06 PM CDT
- EF0 tornado2:31 PM CDT
- EF0 tornado3:09 PM CDT
- EF0 tornado7:59 PM CDT
- EF0 tornado12:04 AM CDT
2020 · 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.