The severe wind outbreak of July 13, 2015
482 wind reportsKentucky, Wisconsin, Indiana and 15 more states
482 damaging wind reports across 18 states between 1:05 AM and 12:46 AM the next day CDT, 13 of them 65 knots (75 mph) or stronger; the strongest measured gust was 78 mph in Gray County, KS. 161 hail reports and 11 tornadoes the same day.
Watch the day unfoldSevere wind day · July 13, 2015
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
- 482
- 40th of 15,807 days with wind reports since 1955
- 75 mph or more
- 13
- 3 of 86 mph (75 knots) or more
- Strongest measured gust
- 78 mph
- 68 knots, Gray County, KS
- Measured
- 23
- reports with an instrument reading; the rest are estimates from damage
- Killed by wind
- 0
- 1 injured
- Counties reporting
- 256
- in 18 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.
| 4:01 AM | Columbia County WI | 100 mph | Estimated |
| 4:02 AM | Dodge County WI | 100 mph | Estimated |
| 7:35 PM | Dane County WI | 90 mph | Estimated |
| 10:56 AM | Marion County IN | 81 mph | Estimated |
| 10:56 PM | Gray County KS | 81 mph | Estimated |
| 10:38 PM | Gray County KS | 78 mph | Measured |
| 3:15 AM | Green Lake County WI | 75 mph | Estimated |
| 3:20 AM | Waushara County WI | 75 mph | Estimated |
| 4:29 AM | Outagamie County WI | 75 mph | Estimated |
| 4:55 AM | Waukesha County WI | 75 mph | Estimated |
| 3:30 PM | Horry County SC | 75 mph | Estimated |
| 6:05 PM | Cumberland County KY | 75 mph | Estimated |
| 6:45 PM | Finney County KS | 75 mph | Estimated |
| 4:25 AM | Dane County WI | 74 mph | Measured |
| 4:29 AM | Green County WI | 74 mph | Measured |
| 6:13 PM | Adams County IL | 74 mph | Measured |
| 7:30 PM | Guilford County NC | 74 mph | Measured |
| 8:24 PM | Putnam County IN | 74 mph | Measured |
| 2:40 AM | Adams County WI | 71 mph | Estimated |
| 8:16 AM | St. Joseph County MI | 70 mph | Measured |
| 12:05 AM | Allegan County MI | 70 mph | Measured |
| 3:05 AM | Waushara County WI | 70 mph | Estimated |
| 9:50 AM | Tippecanoe County IN | 70 mph | Estimated |
| 10:40 AM | Randolph County IN | 70 mph | Estimated |
| 10:53 AM | Marion County IN | 70 mph | Estimated |
| 11:07 AM | Marion County IN | 70 mph | Estimated |
| 12:05 PM | Bartholomew County IN | 70 mph | Estimated |
| 12:10 PM | Bartholomew County IN | 70 mph | Estimated |
| 1:20 PM | Bracken County KY | 70 mph | Estimated |
| 6:39 PM | Pike County IL | 70 mph | Estimated |
| 6:45 PM | Brown County IL | 70 mph | Estimated |
| 7:10 PM | Scott County IL | 70 mph | Estimated |
| 7:18 PM | Morgan County IL | 70 mph | Estimated |
| 7:33 PM | Hodgeman County KS | 70 mph | Estimated |
| 7:37 PM | Hodgeman County KS | 70 mph | Estimated |
| 8:00 PM | Franklin County KS | 70 mph | Estimated |
| 8:00 PM | Franklin County KS | 70 mph | Estimated |
| 8:30 PM | Putnam County IN | 70 mph | Estimated |
| 2:41 AM | Adams County WI | 69 mph | Estimated |
| 3:10 AM | Marquette County WI | 69 mph | Estimated |
| 3:13 AM | Sauk County WI | 69 mph | Estimated |
| 3:51 AM | Iowa County WI | 69 mph | Estimated |
| 4:02 AM | Fond du Lac County WI | 69 mph | Estimated |
| 4:10 AM | Jefferson County WI | 69 mph | Estimated |
| 4:15 AM | Dane County WI | 69 mph | Estimated |
| 4:25 AM | Dodge County WI | 69 mph | Estimated |
| 4:29 AM | Dodge County WI | 69 mph | Estimated |
| 4:59 AM | Rock County WI | 69 mph | Estimated |
| 5:00 AM | Sheboygan County WI | 69 mph | Estimated |
| 10:40 AM | Hamilton County IN | 69 mph | Estimated |
| 12:46 PM | Highland County OH | 69 mph | Estimated |
| 2:26 PM | Montgomery County KY | 69 mph | Estimated |
| 2:26 PM | Montgomery County KY | 69 mph | Estimated |
| 2:30 PM | Rowan County KY | 69 mph | Estimated |
| 3:00 PM | Estill County KY | 69 mph | Estimated |
| 3:55 PM | Estill County KY | 69 mph | Estimated |
| 5:08 PM | Tazewell County VA | 69 mph | Estimated |
| 5:10 PM | Mercer County WV | 69 mph | Estimated |
| 5:43 PM | Scotland County MO | 69 mph | Estimated |
| 6:20 PM | Kankakee County IL | 69 mph | Estimated |
| 7:16 PM | Rockingham County NC | 69 mph | Estimated |
| 9:31 PM | Boone County IL | 69 mph | Estimated |
| 3:30 AM | Sauk County WI | 68 mph | Estimated |
| 5:41 AM | Winnebago County IL | 66 mph | Measured |
| 2:45 AM | Adams County WI | 66 mph | Estimated |
| 4:05 AM | Dane County WI | 64 mph | Measured |
| 4:10 AM | Dodge County WI | 64 mph | Measured |
| 10:36 AM | Hamilton County IN | 64 mph | Measured |
| 4:05 AM | Outagamie County WI | 64 mph | Estimated |
| 10:40 AM | Boone County IN | 64 mph | Estimated |
| 10:42 AM | Boone County IN | 64 mph | Estimated |
| 10:44 AM | Marion County IN | 64 mph | Estimated |
| 10:45 AM | Randolph County IN | 64 mph | Estimated |
| 10:50 AM | Marion County IN | 64 mph | Estimated |
| 11:12 AM | Johnson County IN | 64 mph | Estimated |
| 11:18 AM | Shelby County IN | 64 mph | Estimated |
| 12:30 PM | Jackson County IN | 64 mph | Estimated |
| 4:51 PM | Taylor County KY | 64 mph | Estimated |
| 5:09 PM | Green County KY | 64 mph | Estimated |
| 5:40 PM | Knox County MO | 64 mph | Estimated |
| 5:55 PM | Lewis County MO | 64 mph | Estimated |
| 6:05 PM | Jackson County MO | 64 mph | Estimated |
| 6:15 PM | Marion County MO | 64 mph | Estimated |
| 6:45 PM | Finney County KS | 64 mph | Estimated |
| 7:20 PM | Clay County TN | 64 mph | Estimated |
| 7:25 PM | Hodgeman County KS | 64 mph | Estimated |
| 7:35 PM | Macoupin County IL | 64 mph | Estimated |
| 9:00 PM | Hendricks County IN | 64 mph | Estimated |
| 9:02 PM | Morgan County IN | 64 mph | Estimated |
| 9:10 PM | Marion County IL | 64 mph | Estimated |
| 5:30 AM | McHenry County IL | 63 mph | Measured |
| 4:40 AM | Washington County WI | 63 mph | Estimated |
| 4:55 AM | Walworth County WI | 63 mph | Estimated |
| 1:30 PM | Bracken County KY | 63 mph | Estimated |
| 2:05 PM | Rowan County KY | 63 mph | Estimated |
| 2:15 PM | Bath County KY | 63 mph | Estimated |
| 2:26 PM | Montgomery County KY | 63 mph | Estimated |
| 2:28 PM | Elliott County KY | 63 mph | Estimated |
| 2:28 PM | Elliott County KY | 63 mph | Estimated |
| 2:50 PM | Morgan County KY | 63 mph | Estimated |
By state
| Kentucky | 123 | — |
| Wisconsin | 59 | 74 mph |
| Indiana | 53 | 74 mph |
| Virginia | 39 | — |
| Ohio | 35 | — |
| North Carolina | 26 | 74 mph |
| Illinois | 25 | 74 mph |
| South Carolina | 21 | — |
| Michigan | 20 | 70 mph |
| West Virginia | 20 | — |
| Missouri | 17 | — |
| Kansas | 13 | 78 mph |
| Georgia | 12 | — |
| Tennessee | 10 | — |
| Florida | 5 | — |
| New York | 2 | — |
| Alabama | 1 | 59 mph |
| South Dakota | 1 | — |
| Iowa | 0 | — |
Counties with the most wind reports
- Marion CountyIN · 8 reports
- Dane CountyWI · 8 reports
- Jefferson CountyKY · 7 reports
- St. Joseph CountyMI · 7 reports
- Hamilton CountyOH · 7 reports
- Breathitt CountyKY · 7 reports
- Morgan CountyKY · 5 reports
- Evans CountyGA · 5 reports
- Pike CountyKY · 5 reports
- Dodge CountyWI · 5 reports
Hail and tornadoes that day
161 hail reports, 12 of 2 inches or more; 11 tornadoes.
| 5:49 PM | LaSalle County IL | 3.75 |
| 6:32 PM | Cumberland County KY | 2.75 |
| 6:36 PM | Rice County KS | 2.75 |
| 6:45 PM | Finney County KS | 2.75 |
| 7:02 PM | Allen County KS | 2.75 |
| 7:02 PM | Reno County KS | 2.75 |
| 7:45 PM | Lake County IN | 2.75 |
| 5:53 PM | Jackson County WI | 2.50 |
| 6:57 PM | Reno County KS | 2.50 |
| 7:39 PM | Cook County IL | 2.50 |
| 4:50 PM | Clinton County IA | 2.00 |
| 5:00 PM | Clinton County IA | 2.00 |
| 2:50 PM | Nodaway County MO | 1.75 |
| 4:48 PM | Clinton County IA | 1.75 |
| 4:53 PM | Clinton County IA | 1.75 |
| 5:08 PM | Green County KY | 1.75 |
| 5:28 PM | Scott County IA | 1.75 |
| 5:40 PM | Adair County KY | 1.75 |
| 5:40 PM | LaSalle County IL | 1.75 |
| 6:05 PM | Henry County IL | 1.75 |
| 6:15 PM | Lafayette County MO | 1.75 |
| 7:07 PM | Jackson County WI | 1.75 |
| 7:19 PM | Osage County KS | 1.75 |
| 7:20 PM | Kankakee County IL | 1.75 |
| 7:40 PM | Cook County IL | 1.75 |
| 7:50 PM | Lake County IN | 1.75 |
| 7:51 PM | Reno County KS | 1.75 |
| 7:55 PM | Lake County IN | 1.75 |
| 8:11 PM | Reno County KS | 1.75 |
| 8:27 PM | Reno County KS | 1.75 |
| 8:52 PM | DuPage County IL | 1.75 |
| 9:11 PM | Reno County KS | 1.75 |
| 9:20 PM | Boone County IL | 1.75 |
| 12:30 AM | Trimble County KY | 1.75 |
| 4:22 PM | La Crosse County WI | 1.50 |
| 4:50 PM | Clinton County IA | 1.50 |
| 6:03 PM | Henry County IL | 1.50 |
| 6:30 PM | Sauk County WI | 1.50 |
| 6:54 PM | Columbia County WI | 1.50 |
| 6:58 PM | Columbia County WI | 1.50 |
| 8:45 PM | Hendricks County IN | 1.50 |
| 9:45 PM | McHenry County IL | 1.50 |
| 2:40 PM | Nodaway County MO | 1.25 |
| 2:43 PM | Brunswick County NC | 1.25 |
| 4:28 PM | Marion County KY | 1.25 |
| 4:40 PM | Monroe County WI | 1.25 |
| 4:50 PM | Wayne County IA | 1.25 |
| 5:22 PM | Vernon County WI | 1.25 |
| 5:35 PM | Taylor County KY | 1.25 |
| 5:59 PM | Dickinson County KS | 1.25 |
- EF1 tornado5:20 PM CDT
- EF0 tornado5:58 PM CDT
- EF0 tornado6:13 PM CDT
- EF0 tornado6:33 PM CDT
- EF3 tornado6:34 PM CDT
- EF0 tornado7:18 PM CDT
- EF0 tornado7:59 PM CDT
- EF0 tornado8:15 PM CDT
- EF1 tornado8:25 PM CDT
- EF1 tornado8:27 PM CDT
- EF0 tornado12:15 AM CDT
2015 · 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.