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

Concern over vaping grows in Parksville Qualicum Beach schools

Health officer says parents have ample reason to be concerned

Coombs Family Day Celebration cancelled

The large snowfall that hit Vancouver Island recently has led to the… Continue reading

Parksville Qualicum Beach residents advised to prepare for changing weather

Rising temperatures on Friday will produce snow, changing to rain with increasing snow melt

No specifics given for termination of Parksville CAO

Comis believes the decision was political

VIDEO: Canada’s flag turns 54 today

The maple leaf design by George Stanley made its first appearance Feb. 15, 1965

Eight cases of measles confirmed in Vancouver outbreak

Coastal Health official say the cases stem from the French-language Ecole Jules Verne Secondary

Plecas won’t run in next election if B.C. legislature oversight reforms pass

B.C. Speaker and Abbotsford South MLA says he feels ‘great sympathy’ for Jody Wilson-Raybould

Strangers save life of hiker in Cowichan

Hike up Cobble Hill Mountain turns into ambulance ride, surgery

Battling the dirty little secret of Vancouver Island’s Pacific Rim

Illegal dumping the bane on Ucluelet and Tofino area backroads

Snow days prove costly for many workers

Employment Standards Act doesn’t cover businesses closed due to weather

Workshop with ‘accent reduction’ training cancelled at UBC

The workshop was cancelled the same day as an email was sent out to international students

Former B.C. premier Gordon Campbell accused of sexual touching

Accuser went to police, interviewed by Britian’s Daily Telegraph

Man in Vancouver Island hotel shooting pleads guilty to second-degree murder

Brandon Tyler Woody, from Victoria, to be sentenced in late March in B.C. Supreme Court

Most Read