Possible tornadoes touch down in southern Ontario

It was raining pretty hard and the wind start to pick up, so Pam Ogawastarted folding up her outdoor furniture.

She ran onto her boat and"all of a sudden I heard the wind come up and it was so loud Ihad to cover my ears. And everything was blowing and like a domino effect the roof started dropping and it just stopped just before my boat."

Ogawa wasat a marina on the south shore of Lake SimcoenearPefferlaw, Ont. She, like many other southern Ontarioresidents who took to social media Saturday afternoon, believe that a tornado struck the area.

"I had to run off my boat and I had to run into my husband's truck," she said. The structure over top of the boatin her photos is a metal roof held up by beams.

Oshawa residents also reported possible tornado sightings:

It is up to Environment Canada to determine whetherstorm activity constitutesa tornado.

Peter Kimbell,awarning preparedness meteorologist withEnvironment Canada,told CBC News that"we haven't a made a decision to send anybody out to investigate yet."

Kimbell explained that the department sends someone out in cases where there are "clear indications" of severe activity, including injuries,fatalitiesand majorproperty damage.

Saturday'sstormsfall into a "grey area," Kimbell said, and Environment Canada will decide by the end of the day whether to make a determination about whether one or more tornadoes touched down.

While there isstill thunderstorm watch in effect late Saturday afternoon,the worst of the weather hadmoved east of the GTA, he said.