08/07/2013 17:32 EDT | Updated 10/07/2013 05:12 EDT

Storms rip across parts of Ontario, trigger tornado warnings

A series of dangerous thunderstorms in central Ontario have left more than a dozen communities under a tornado watch on Wednesday evening.

"We have a very large line of storms that are tracking their way across much of south and south-central Ontario. And we've got tornado warnings, well blossoming, quite frankly," the CBC's Claire Martin shortly before 6:30 p.m.

"They are now being issued all the way out towards southeastern Ontario, back down towards Lake Simcoe and at one point were in and around parts of southwestern Ontario."

Tornado warnings remain in effect for the Orillia, Lagoon City and Washago areas, as well as Haliburton, Minden, Southern Haliburton County, Fenelon Falls, Balsam Lake and Northern Kawartha Lakes.

Additional warnings have been issued for Orangeville, Grand Valley and Southern Dufferin County. Tornado warnings have ended for Mount Forest, Arthur and Northern Wellington County.

The weather agency put additional areas under a tornado watch as of 6 p.m. ET:

- Bancroft, Hastings Highlands and Denbigh

- Oxtongue Lake, Fort Irwin, Northern Haliburton County

- Barry's Bay and Killaloe

- Deep River, Whitney, Eastern Algonquin Park