Environment Canada says it has confirmed that a tornado touched down Tuesday in the Kawartha Lakes region of Central Ontario.
Meteorologist Peter Kimbell says damage to a house and barn helped officials who examined the area Wednesday afternoon confirm the tornado.
Mr. Kimbell says it was an EF-2 tornado, with winds of between 180 and 200 kilometres an hour. The EF scale rates tornadoes from zero to five.
He says the twister touched down in the community of Glenarm, about 70 kilometres north of Oshawa.
It happened as a system of severe thunderstorm moved through Southern Ontario.
The storm cut the power to about 3,000 Ontario Hydro customers. A spokesman for the utility said most of them had their power restored by Wednesday evening.