{"id":13588,"date":"2025-01-20T23:35:40","date_gmt":"2025-01-20T23:35:40","guid":{"rendered":"http:\/\/torontotribune.ca\/index.php\/2025\/01\/20\/arctic-air-brings-plunging-temperatures-to-much-of-canada-national\/"},"modified":"2025-01-20T23:35:40","modified_gmt":"2025-01-20T23:35:40","slug":"arctic-air-brings-plunging-temperatures-to-much-of-canada-national","status":"publish","type":"post","link":"https:\/\/torontotribune.ca\/index.php\/2025\/01\/20\/arctic-air-brings-plunging-temperatures-to-much-of-canada-national\/","title":{"rendered":"Arctic air brings plunging temperatures to much of Canada – National"},"content":{"rendered":"


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A mass of cold air that meandered south from the Arctic has sent temperatures plunging with wind chills making it feel like -40 Celsius or colder across parts of Canada from New Brunswick to eastern Alberta.<\/p>\n

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Arctic cold occasionally invades the southern latitudes for a few days before retreating north, bringing with it shivering temperatures, Peter Kimbell, meteorologist with Environment Canada, said Monday in an interview.<\/p>\n

\u201cWe have permanently cold air parked across the Arctic \u2026. From time to time, a pool of cold air meanders southward, and basically affects areas that are further south. And when that happens, people colloquially call it a polar vortex,\u201d Kimbell said.<\/p>\n

Extreme cold warnings are in effect across the country, with temperatures feeling like -40 C in parts of Alberta, -45 C in Saskatchewan, and down to -50 C in parts of Manitoba and northern Ontario.<\/p>\n

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Thresholds for extreme cold warning vary across the country, based on geography, Kimbell said. As as example, the threshold for extreme cold in Toronto is -30 C, he said. But if that same threshold is used for northern Ontario, the region would be under a cold warning almost all winter.<\/p>\n

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Parts of Canada can start to see some \u201cmoderation\u201d in temperatures by Tuesday, he said. \u201cIt\u2019s still going to be cold, but not to the extreme extent that we saw (Monday) morning.\u201d<\/p>\n

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January has been colder than normal over the southern Prairies and southwestern Ontario, but warmer than normal over much of northern Quebec and parts of Nunavut, Kimbell said.<\/p>\n

\u201cLast month was somewhat warmer than normal, pretty much across the board, and across the country,\u201d Kimbell said. \u201cLikewise for November \u2026. This would be probably the first sustained blast of cold air this wintertime.\u201d<\/p>\n