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

Lake Flashback: Great Lake Walk, development mooted for Paldi, visitors want more attractions

There’s always been ideas for Paldi, but none have yet come to fruition

Caps get back in win column

Cowichan remains unbeaten at home with 5-2 win over Surrey

Victoria man spots online photo of his totem pole 11 years after it was stolen

Mark Trueman restored the pole himself before it was stolen off of his property in Duncan

‘Youthful exuberance’ or ‘grievous deed’: opinion is divided on Trudeau’s ‘brown face’ costume

Local Liberal candidate asks voters to concentrate on Prime Minister’s political record

VIDEO: Cars, fans flock to Lake Cowichan show & shine

A&W, VI Motorsport Circuit, and 75th anniversary group put on a great show Sept 8, 2019

VIDEO: Trudeau asks Canada to look to current, not past, actions on race

Liberal leader says he never spoke about the racist photo because he was embarrassed

Horvat paces Canucks to 6-1 pre-season win over Oilers

Vancouver improves to 3-1 in NHL exhibition action

Legislature gifts, clothing, travel need better control, B.C. auditor says

Audit follows suspensions of managers by Speaker Darryl Plecas

‘Really disturbing:’ Trudeau’s racist photos worry B.C. First Nation chief

Wet’suwet’en Chief concerned the photos will sow fear in Indigenous communities

‘Unacceptable’: What politicians have to say about Trudeau in blackface

Calgary Mayor Naheed Nenshi: ‘When I saw that picture last night, certainly it was a sucker-punch’

‘He’s trying to kill me’: Victoria police commandeer boats to reach screaming woman

No charges laid and civilians to be awarded honours after incident on Gorge Waterway

Island contestant competes on Great Canadian Baking Show

Andrea Nauta auditioned for the show before but was lucky second time around

VIDEO: B.C. man accused of assaulting sex worker loses temper in interrogation

Defence lawyer says statements made by accused Curtis Sagmoen should be deemed inadmissible

John Horgan promises action after fatal mid-Island bus crash

Premier cites students, local Indigneous community as reason to repair the road

Most Read