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Hello polar vortex, my old friend

Enjoy the balmy green November weather streak while it lasts — about three more days, as forecasters predict up to a 30-degree plunge in temps in Fort St. John by Monday.

Enjoy the balmy green November weather streak while it lasts — about three more days, as forecasters predict up to a 30-degree plunge in temps in Fort St. John by Monday.

Indeed some of the coldest weather in the next 10 days are forecast in parts of northern B.C., Alberta, the Yukon, and Northwest Territories, according to The Weather Network.

Meteorologists for the weather agency say a polar vortex will bring in "a sizable chunk of frigid air" down from Siberia and Alaska over the weekend, with chances of snow starting Saturday and carrying into next week.

“We've seen this pattern before. The Arctic air spilled across Canada earlier in November,” Weather Network meteorologist Tyler Hamilton wrote in a recent forecast.

“Two upper ridges will anchor the next cold wave right into early December, promising more snowfall and chilly temperatures across much of the country.”

Hamilton added, “This pattern doesn't appear to be very transient, either."

“Another ridge wants to lock the cold across the country. Signs of a blocking pattern over eastern Greenland are building, compressing the cold anomaly into Canada.”


polarvortextweathernetwork
(The Weather Network)

Temperatures in Fort St. John are forecast to reach around 9 degrees on Thursday thanks to strong, gusting winds from the southwest.

But just how cold will temps get in the city by next week?

The Weather Network predicts daytime highs of -14, -15, and -20 degrees Monday through Wednesday, with wind chills making it feel as cold as -28.

Environment Canada predicts highs of -21 and -23 degrees on Monday and Tuesday.

Both agencies are predicting snow — about six centimetres over the weekend, and between 7 to 14 cm over Tuesday and Wednesday, according to The Weather Network.

Fort St. John saw average daytime highs of 13.5 degrees in October, but a blast of Arctic air at the start of November brought an abrupt end to that, dropping temperatures down to -24 degrees by Nov. 9.

That wasn't cold enough for a new city record, but a new low temperature record of -29.7 was set in Dawson Creek on that same day.


polarvortexweathernetwork2
(The Weather Network)
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