In Canada's Northermost Community, October Highs Reached 3.4C; Normal Would Be Minus 15
Some Nunavut communities experienced unusually warm temperatures in October, according to Environment Canada. And higher-than-average temperatures are likely to continue into November, climate scientists say.
In Grise Fiord, Canada’s most northerly community, several mid-October temperatures were more than 18 C higher than the historical average for that date. On Oct. 18 and Oct. 19, the high temperature there reached 3.4 C, where the average temperature over the past five years for that date would be about -15 C. Then, on Oct. 20, Grise Fiord came in as the hot spot in all three territories, with a high of 2.2 C, compared to an average of -15 C.
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Residents of Gjoa Haven and Cambridge Bay said in mid-October that the sea ice outside their communities was just beginning to form. That’s much later than in 2014 and 2018 when the ice formed in late September along the Northwest Passage, preventing the passage of cruise ships and sealift barges.
Mark Serreze, the director of the National Snow and Ice Data Center at the University of Colorado, says a process called “Atlantification” is now affecting the formation of Arctic sea ice. “The ice is now getting hit both from the top by a warming atmosphere and at the bottom by a warming ocean. It’s a real double whammy,” he said in the Conversation.
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https://nunatsiaq.com/stories/article/nunavuts-warmer-than-normal-october-temperatures-expected-to-last-into-november/
