EF0 Tornado Confirmed in Ontonagon on 8/19/2011

Weak Tornado in Ontonagon

An assessment team from the National Weather Service in Marquette in conjunction with Ontonagon Emergency Management  surveyed storm damage that occurred in Ontonagon around 8:15 AM EDT on Friday, August 19th.  The team determined the damage was caused by a weak tornado.

The tornado initially touched down at the River Pines RV Park and Campground and then skipped northeastward across the Village lifting on the east side of the Ontonagon Golf Course.   Most of the damage was confined to snapped and uprooted trees, snapped power poles, a flipped boat, minor roof damage, and some structural damage to a garage.  There were no injuries.

The tornado was on the ground for 1.5 miles and the maximum damage path width at its widest point was about 125 yards.  The preliminary maximum winds in the tornado were 85 mph which made the tornado a strong EF0 tornado on the Enhanced Fujita scale used to rate the intensity of tornadoes.

Shown below are pictures of the tornado damage in the Ontonagon area.  More pictures are available by visiting our new Facebook page, which can be accessed by using the following link:  www.facebook.com/US.NationalWeatherService.Marquette 


Indicates the tornado path through Ontonagon. Click for a larger image.



Photographs of EF0 tornado damage in the Ontonagon area. Click on any photograph for a larger image. (Photos courtesy of the NWS Storm Survey Team)

Return to News Archive

USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.