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Canada's windiest city loses its wind. Here's why


Andrea Bagley
Digital Reporter

Wednesday, April 13, 2016, 6:49 AM - St. John's, Newfoundland, where's the wind? For the first time in five years, the city is expected to see light winds of less than 20 km/h for the next four days in a row.

"It's a fairly big deal," says Weather Network meteorologist Tyler Hamilton. "St. John's, Newfoundland, Canada's windiest city, averages a wind speed of nearly 25 km/h, year-round."

In fact, nearly 130 days of the year have recorded winds over 40 km/h or greater, Hamilton adds.

"The true anomaly becomes apparent when you look at the other end of the spectrum; some tranquil valley protected cities in B.C, such as Kelowna, struggle to average wind speeds much more than 5 km/h on a daily basis," explains Hamilton.

For St. John's to see such a sustained period of calm winds is highly unusual and hasn't been reported in at least half a decade.

WHAT HAPPENED TO THE WIND?

"A massive blocking ridge and correlation to a region of high pressure (teleconnection) up towards Greenland is to blame, with the ridge of high pressure extending all the way towards Greenland providing the perfect conditions for light winds for the Avalon," Hamilton says. "This is a textbook blocking ridge that acts as an atmospheric traffic jam not allowing systems to flow smoothly."

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