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Spring forecast calls for a taste of winter


Despite unusually warm temperatures in parts of the country, a forecaster says bouts of late winter weather are expected for many through March, with more spring-like temperatures to arrive by May.

Chris Scott says The Weather Network spring forecast calls for Canadians to expect more storms before the wintry weather ends.

Scott, chief meteorologist at The Weather Network, said the clash between warm weather coming up from the south and the fairly typical cold of northern Canada will cause snow in March and rain in April and May.

In concrete terms, he said that means residents of Western Canada have great conditions for skiing, people who live along Manitoba's Red River Basin should watch out for flooding, and those in southern Ontario should keep their snow tires on.

Residents of Quebec, the Atlantic provinces, Yukon, Northwest Territories, and Nunavut can expect near normal temperatures and precipitation this spring.

Scott said it's a continuation of one of the strangest Canadian winters on record.

“The weather patterns across Canada are pretty wild,” he noted.

Some examples, he said, are snowstorms in Atlantic Canada, temperatures rising to the teens in southern Ontario and Quebec, and bigger snowbanks in Coquitlam, B.C. than in Toronto in February.

One of the biggest factors affecting the winter weather are the unusually-rapid shifts between El Nino, a climate cycle involving warmer-than-average waters in the Pacific Ocean, and La Nina, cooler-than-average waters in the same area.

Even a small change in ocean temperatures will affect the amount of moisture in the air, which has an affect on the weather.

Because El Nino and La Nina are located over wide swaths of the ocean, they can “change the overall weather patterns around the world,” Scott noted.

Last year's El Nino was one of the strongest in history.

A typical pattern would involve a switch to La Nina within a period of two-seven years.

For that switch to occur in a matter of months is unprecedented.

Scott said it has never happened before in the 75 years of recorded meteorological history.

“Within one year we've gone from a super El Nino, very strong, and then a weak La Nina, and all of a sudden back to El Nino,” he remarked.

“The speed of that flip is something we haven't seen before.”

Scott added that winter has got “a bite left in it,” but much of the country will welcome near or above seasonal temperatures by May.

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