Tornado risk for the Ottawa area Thursday
The watch covers Quyon and communities to its north and west.
Forecasters mention strong gusts of wind, large hail and heavy rain along with lightning, but do not yet say when.
Environment Canada has also been mentioning possible Thursday tornadoes for eastern Ontario since Tuesday. There are no weather alerts there yet.
Environment Canada recommends staying indoors and taking cover in a basement where possible during these types of threatening weather, and notes strong winds can damage trees or buildings and overturn vehicles.
It issues a severe thunderstorm watch when conditions are favourable for a storm to develop. A warning is issued when there is evidence that a thunderstorm is imminent or occurring that will produce damaging hail, wind or rain.
Tornado watches and warnings follow a similar system.
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