Severe thunderstorm watch in effect for Ottawa region

Environment Canada issued a severe thunderstorm watch for the Ottawa region on Thursday afternoon.

Chance of isolated tornado cannot be 'ruled out,' Environment Canada says

Rainclouds roll past the National Gallery of Canada in downtown Ottawa. Rain today, the 23rd of May, would mean it's the month's 15th day with rain recorded at the Ottawa International Airport. (Ian Black/CBC)

Environment Canada issued a severe thunderstorm watch for the Ottawa region on Thursday afternoon.

Thunderstorms are expected to develop Thursday afternoon ahead of an approaching cold front, the weather agency said.

Extensive cloud cover may limit the intensity of the thunderstorm, but the threat may increase in severity if clearing occurs. 

The agency also said the region can expect wind gusts of up to 100 km/h, and that large hail may also be possible. The agency also noted that an isolated tornado cannot be "ruled out."

The severe thunderstorm threat will end this evening, Environment Canada said.

A humid day

The high is 22 C in Ottawa, with humidity making it feel closer to 27.

It will be a bit cooler as you delve further north into western Quebec — Maniwaki's high is 18 C.

Tonight's low is 13 C.

In a fast-changing weather pattern, it's back to dry weather Friday in the capital then more rain for Saturday's opening day of Ottawa Race Weekend.

We should dry out again Sunday for the half and full marathons.

In the Kingston area, the chance of showers lasts into Sunday.

Temperatures will be close to the normal high near 20 C.

With temperatures hitting 20 C on Wednesday, residents were out enjoying one of the first warm days of the year. 0:46

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