IT'S ARMEL CASTELLAN'S JOB TO know the weather 24/7. As Environment and Climate Change Canada's disaster preparedness meteorologist for B.C. and Yukon, he's constantly on the lookout for extremes: subtropical cyclones, arctic cold fronts, floods, heat waves and fire weather.
When he looked at the weather models in mid-June of 2021, he felt his heart beating in his throat. The skull-crushing ridge of high pressure he saw headed toward B.C. was so powerful, he knew immediately it would blanket a vast area in deadly heat. The models were forecasting temperatures so far outside of normal that the map interface on Castellan's computer was displaying all new colours-greys and whites on a spectrum of intensity he'd only ever seen go to dark red. Within days, European, American and Japanese weather models converged on a consensus: a record-breaking pressure cooker would soon envelop western North America.
"We knew records were going to be broken," says Castellan. "But that doesn't give you the reality of what was about to happen." Temperature records typically break by tenths of degrees, like speed records for the 100-metre dash. At its apex, the heat dome that engulfed B.C. that month eclipsed some records by more than five degrees, driving temperatures up to 25 degrees beyond seasonal averages.
This story is from the September 2023 edition of Maclean's.
Start your 7-day Magzter GOLD free trial to access thousands of curated premium stories, and 9,000+ magazines and newspapers.
Already a subscriber ? Sign In
This story is from the September 2023 edition of Maclean's.
Start your 7-day Magzter GOLD free trial to access thousands of curated premium stories, and 9,000+ magazines and newspapers.
Already a subscriber? Sign In
A Teacher's Tale
My career in Quebec ended because I chose to keep my hijab
Top Marks
InSaguenay, Quebec, Ecole de l'Etincelle embodies the school of the future
Modernize Parental Leave
Canada's birth rate is dropping, and the cost of living is partly to blame. A more supportive leave plan would make parenthood more affordable
"I spent years trying to learn English.Now I use ChatGPT."
AI isn't perfect, but it helps me write complex emails and understand Canadian culture
MY PREDICTION - The National School Food Program Will Transform Kids' Health
When students have access to nutritious food, they do better in school and life
FOOD
The exorbitant cost of food will have ripple effects on the restaurant industry and grocery stores. The good news? There's a plan to save the country's salmon supply.
MY PREDICTION - New Mortgage Rules Will Drive Up Housing Prices
Looser lending policies will encourage more people to buy homes they can't afford in the first place
HOUSING
Politicians will spar over how to tackle the housing crisis. Falling interest rates will draw young people into the real estate market. And a rude awakening is coming for homeowners renewing mortgages.
MY PREDICTION - Stuctured Literacy Will Help Level the Educational Playing Field
Canadian students have struggled to read and write. That stops this year.
EDUCATION
Quebec's classrooms will take centre stage in the secularism debate. Chatbots will help students create A-plus work, while others will grade themselves. And thousands of international students will be sent home.