Tornado outbreak of March 6–7, 2017
The extratropical cyclone on March 7 with storms extending from Oklahoma to Ontario | |
| Type | Tornado outbreak Extratropical cyclone |
|---|---|
| Formed | March 6, 2017 |
| Dissipated | March 7, 2017 |
| Highest winds |
|
| Tornadoes confirmed | 63 confirmed |
| Max. rating1 | EF3 tornado |
| Duration of tornado outbreak2 | 9 hours, 33 minutes |
| Largest hail | 2.75 in (7.0 cm) diameter near Trimble, Missouri and Edgerton, Missouri |
| Fatalities | 0 deaths, 19 injuries |
| Damage | $2.2 billion (2017 USD) |
| Areas affected | Central United States |
Part of the 2016–17 North American winter and tornado outbreaks of 2017 1Most severe tornado damage; see Enhanced Fujita scale 2Time from first tornado to last tornado | |
The tornado outbreak of March 6–7, 2017 was a widespread severe weather and tornado outbreak that affected portions of the Midwestern United States in the overnight hours of March 6–7. Occurring just days after a deadly and more significant event across similar areas just a week prior, this particular outbreak led to 63 tornadoes within a 91⁄2-hour period as a quasi-linear convective system and discrete supercell thunderstorms traversed the region. The most notable aspect of the outbreak was an EF3 tornado that damaged or destroyed hundreds of structures within Oak Grove, Missouri, injuring 12 people but causing no fatalities. An EF1 tornado touched down near Bricelyn, the earliest known tornado on record in the state of Minnesota. Outside of tornadic activity, hundreds of damaging wind reports and a multitude of severe hail reports were documented.