With extreme temperature shocks is experiencing Alaska, where only before a short period, minimum temperatures were reaching below -40°F / -40°C / in Canada, historic -51,1°C was quite close to Alaskan border measured: https://mkweather.com/canada-511c-the-first-50c-and-lower-temperature-in-december-since-1998//, but now, anomalous warmth has come, with a result of extensive melting of snow cover.
In Denali resort, record 1,9 meters / 74.5 inches of snow (never seen so early to date) was at the end of the year 2021 measured, on the other hand, Kodiak Island, southwest from Anchorage, reported anomalous +19,4°C – the highest December temperature in Alaska ever.
+16,6°C in Cold Bay, and +13,3°C in Unalaska was at Christmas 25.12.2021, measured, with a result of the warmest Christmas in history.
The University of Fairbanks reported +15,5°C, which is the highest December temperature in the city ever /https://en.wikipedia.org/wiki/Fairbanks,_Alaska/.
The result of these big temperature changes is many dangerous icicles on buildings, cars, or trees and a possibility of local flash floods or ice floods on rivers.
Widespread power outages, road, and office closures were reported.
The situation is described to be extremely dangerous mainly for drivers.
Even, torrential rain downpours appeared across parts of Alaska, which should worsen the crisis.
Meanwhile, large parts of Saskatchewan reported many daily temperature records on 28.12.2021, when cold air from British Columbia, Alberta, and NWT finally shifted above the province (Assiniboia: New record of –35.5 C (Old record of –33.8 C set in 1996); Broadview: New record of –39.0 C (Old record of –35.8 C set in 1992); Coronach: New record of –35.1 C (Old record of –32.0 C set in 1992); Elbow: New record of –37.0 C (Old record of –36.0 C set in 1992); Indian Head: New record of –39.0 (Old record of –38.3 set in 1917); Kindersley: New record of –39.2 C (Old record of –37.8 C set in 1968); Last Mountain Lake: New record of –40.7 C (Old record of –37.0 C set in 1992); Leader: New record of –42.6 C (Old record of –37.2 C set in 1924); Lucky Lake: New record of –38.7 C (Old record of –36.3 C set in 1996); Maple Creek: New record of –40.6 C (Old record of –40.0 C set in 1917); Moose Jaw: New record of –37.6 C (Old record of –34.4 C set in 1924); Regina: New record of –38.6 C (Old record of –37.2 C set in 1884); Rockglen: New record of –31.9 C (Old record of –31.7 C set in 1996); Rosetown: New record of –38.6 C (Old record of –38.3 C set in 1917); Swift Current: New record of –39.1 C (Old record of –36.1 C set in 1917); Wynyard: New record of –37.2 C (Old record of –34.6 C set in 1988), according to Environment Canada.
Meanwhile, near LA, 85-year rainfall record was broken, or in Yosemite National Park, record 3,91 meters / 154 inches of snowfall was measured (one of the following Mkweather articles).
Arctic winter is slowly coming above the central USA, too, with a New Year´s blizzard in the northern half of the Midwest.
According to long-term forecasts, very cold weather will return to Alaska and NW parts of the continent in January and February 2022 /https://mkweather.com/kentucky-like-tornadoes-for-the-usa-in-january-and-february-2022-cfs-sees-extreme-temperature-differences-across-the-continent-and-sharp-frontal-boundaries-for-midwest-southeast//.