
Bitterly cold air sinks into Atlantic Canada, drops temperatures considerably
Weather patterns are shifting across Atlantic Canada this week, bringing extreme cold and the possibility of snow. Find out what to expect and how these conditions will impact the region
After the latest winter storm brought significant disruptions to parts of the East Coast Monday, a significant cooldown will follow as we begin to feel the influence of the polar vortex across the region.
A blast of cold air will send temperatures well into the negative digits for much of Atlantic Canada, with the chilliest daytime highs for the Maritimes and Newfoundland coming Wednesday and Thursday, respectively.
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It will remain Frigid through Thursday for much of the region, but still remaining colder-than-normal into the start of the weekend.
Dress warmly and cover up. Dress in layers that you can remove if you get too warm. The outer layer should be wind resistant. Frostbite can develop within minutes on exposed skin, especially with wind chill.
This week:
After a good dumping of snow in New Brunswick, with approximately 21 cm for Moncton, N.B., and rain for Nova Scotia, the extreme cold that has descended upon many in North America is making its way to the East Coast.

Would you rather: Extreme cold temperatures or heavy snow?
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Frigid temperatures will descend upon Atlantic Canada soon, with the coldest morning for the Maritimes on Wednesday morning and the coldest for Newfoundland on Thursday morning.

Dress warmly and cover up. Dress in layers that you can remove if you get too warm. The outer layer should be wind resistant. Frostbite can develop within minutes on exposed skin, especially with wind chill.
New Brunswick will bottom out around -20 C to -30 C, Nova Scotia and P.E.I. from -10 C to -20 C. Daytime high temperatures on Wednesday won’t crack the minus double digits.
Newfoundland will have slightly warmer air, with the coldest temperatures stretching from -10 C to -20 C and daytime highs on Thursday hovering from -5 C to -10 C, not as bad when compared to the Maritimes.

Normally, as cold air moves out into the ocean off the U.S. coast, it creates an environment where cold, dry air and mild, moist air clash, helping to create and develop strong storms.
Luckily, in this case due to the extreme cold, that boundary is farther offshore, meaning two major systems that develop off the coast of the U.S. this week will track well south of the region.

The first system on Wednesday tracks south, bringing cloud cover to southern regions, and the other low could bring a few light flurries, but that’s much better than two storms that could bring 10-20+ cm of snowfall.
Beyond, near-seasonal or colder-than-seasonal temperatures are expected through the end of January.
As mentioned, the active storm track will remain well south of the region. The northern edge of systems could clip southern parts of the region at times, but no major storms are in sight for the region––just flurries and sea-effect snow.
Stay with The Weather Network for all the latest on conditions across Atlantic Canada.