Experts say weather extremes are likely here to stay. (Photo by THE CANADIAN PRESS)

Weather extremes a new fact of life for Canadians: experts

Cherry blossoms are blooming early in Victoria, while central Canada had extreme cold warnings

As Ottawa limps across the finish line of its snowiest January on record, cherry blossoms are blooming at the legislature in coastal Victoria.

Millions of Canadians were hiding out this week under extreme cold warnings stretching across the map, even as some East Coast cities enjoyed moderate temperatures.

READ MORE: Cherry blossoms are blooming early in Victoria

According to experts, these co-existing extremes have been predicted for some time — and they’re likely here to stay.

“This is the kind of thing people have been predicting for years,” said Konrad Gajewski, a professor of geography and environment at the University of Ottawa.

“This kind of pattern of more alternation, more extremes, both in terms of warm and cold conditions is what we’re expecting for the future.”

Central Canada’s cold snap comes from the oscillating upper wind patterns of the jet stream, pushing the cold air down from the north with the polar vortex.

At the same time, the large “waves” in the wind patterns push some warm air north, explaining comparatively warm temperatures on the coasts.

READ MORE: Parts of Midwest colder than Antarctica during deep freeze

The exact role climate change plays in the pattern’s changes is an ongoing discussion in the scientific community, but a common belief says it’s the result of a warming Arctic.

“It’s thought that as the Arctic warms up because the ice is melting back, we’re going to have more of a situation where you have what we call ‘waviness’ in the polar vortex,” Gajewski said.

This “waviness” in the upper wind’s pattern could be carrying cold further and further south into south and central Canada, and pushing warm air further north along the coast.

Atmospheric physics professor Kent Moore at the University of Toronto says the striking weather patterns show how the world’s climate system is intimately coupled, and how changes in the coldest and warmest regions can be felt in central Canadian cities.

As an example, he pointed to the theory that the waves in upper wind patterns are moving slower, with larger amplitudes as a possible result of warming in the Arctic.

“The largest changes in the climate are occurring in the Arctic and some would say, ‘Who cares? I live in mid-latitudes, why should I care about that stuff?’” Moore said.

“The Earth is kind of a small place and so things that happen in the Arctic don’t stay in the Arctic.”

This interconnectedness of the world’s climate system also explains the impacts from El Nino systems on Canada, Moore said.

Like us on Facebook and follow us on Twitter

Just Posted

What do you want to see done with Ladysmith’s old train station?

Island Corridor Foundation meets with community to discuss the future of the Railway Station

Easter Fun Day

Kids fill their baskets with treats Saturday at Fuller Lake Park

Mad scramble for Easter treats

Crofton Easter Egg Hunt brings out hordes of kids and massive bunny chases

Mandatory spaying and neutering looms for outdoor Chemainus cats

North Cowichan considers bylaw to control stray and feral cat issues

Fisheries and oceans minister spends Earth Day in Nanaimo-Ladysmith

Jonathan Wilkinson in riding to support candidate Michelle Corfield

What’s age got to do with it? B.C. couple with 45-year gap talks happy marriage

An Armstrong couple that has 45-year age gap began turning heads after being featured on show Extreme Love.

B.C. men challenge constitutionality of Canada’s secret no-fly list

Parvkar Singh Dulai says he received a “denial of boarding” notification under the no-fly program last May 17

Murder on B.C. property didn’t need to be disclosed before sale, court rules

Buyer had tried to break contract after learning a man with ties to crime had been murdered there

B.C.’s largest Vaisakhi festival target of threatening Facebook post: Surrey RCMP

Police say they are investigating the posts on Facebook, after local MLA forwarded screenshots

Pug life: B.C. town boasts waggish list of dog names

Freedom-of-information request lists most ‘pupular’ dog names registered in White Rock

VIDEO: Duncan-Nanaimo’s Funkanometry bow out of ‘World of Dance’ with ‘After Hours’ routine

Judges praised them as entertainers, and urged them to work a bit more on their dancing

VIDEO: Fish farming company launches $30-million vessel to treat salmon for sea lice in B.C. waters

Freshwater treatment an improvement but fish farms should be removed from sea, says conservationist

Singh says childhood abuse steeled him for scrutiny and stress of politics

He recounts the assaults for the first time in his book Love & Courage

Despite five extra weeks’ parental leave in Canada, dads still face stigma: survey

One reason people said dads don’t need leave is because they can just bond with their kids at weekend

Most Read