Unsettled weather leads to tornado, storm warnings in Ontario

TORONTO -- Unsettled weather conditions triggered more than a half dozen tornado warnings for different parts of Ontario Sunday evening.

Environment Canada said an area stretching from north of Lake Erie to Sudbury was affected by the slow moving system.

"The air mass is quite unstable," said Environment Canada forecaster Ron Lee. "They're isolated thunderstorms but it is spreading some very intense thunderstorms."

Lee said forecasters issued the warnings based on what they could see on radar.

A warning was issued for Sudbury and the surrounding vicinity for about 40 minutes before Environment Canada downgraded it to thunderstorm status.

A severe storm cell also prompted tornado warnings for London and the surrounding area.

Lee said there were no reports of any twisters touching down anywhere and no reports of damage or injuries.

"There have been public reports of seeing rotating clouds and very big hail," he said.

The warnings were downgraded to thunderstorm status later in the evening. The unstable air mass was moving slowly in an east/southeast direction and Lee said it was possible that further warnings could be issued later Sunday night.