A classic circulation pattern, when a Greenlandic, Arctic, or Siberian air floods Europe and into parts of the Arctic is shifted anomalously warm air from southern latitudes has appeared during a current European coldwave, too, and Greenland reports extremely high temperatures.
Anomalous +13,0°C was on 20. December 2021 measured in the capital of Greenland, Nuuk.
It´s only 0,2°C below all-time December record /https://en.wikipedia.org/wiki/Nuuk/.
The average maximum in the warmest month of July in Nuuk is only +11,1°C.
Until 21. December 2021, extremely warm air shifted above Qaanaq, northern Greenland, with a measured maximum temperature of +8,3°C.
It´s the highest December temperature in the city ever! /https://en.wikipedia.org/wiki/Qaanaaq/
It needs to say, that extremely warm air has origin in December US and Canadian heatwaves /https://mkweather.com/esrl-composites-for-the-usa-or-north-america-for-the-first-4-pentads-of-december-2021-heatwaves-and-tornado-outbreaks/; https://mkweather.com/record-heatwaves-the-strongest-storms-since-2004-and-the-next-tornado-outbreak-december-in-the-usa/; https://mkweather.com/summer-christmas-for-south-central-usa/; https://mkweather.com/breaking-ef4-tornado-in-kentucky-killed-50-people-it-was-historic-winter-supercell/; https://mkweather.com/winter-tropical-heatwave-hits-the-usa-unseasonably-hot-from-the-south-to-the-north/; https://mkweather.com/the-first-december-tornado-outbreak-in-minnesota-in-all-time-history-7-tornadoes-caused-damages/; note: Texas and southern Midwest expect the hottest, tropical, Christmas ever – will be updated in one of the next Mkweather articles, soon/.
Sisimut reached +11,3°C on 22. December 2021, which is only 0,2°C below all-time December high /https://en.wikipedia.org/wiki/Sisimiut/, Ilulissat (Jakobshavn) +10,6°C (1°C below all-time December high: https://en.wikipedia.org/wiki/Ilulissat).
Two of the coldest stations in the Northern Hemisphere (at low elevations), Alert and Grise Fiord, Canada according to /https://twitter.com/extremetemps/ rose well above 0°C.
+4,0°C at Grise Fiord (76N) was measured, which is a new all-time December record.
+2,3°C surprised at Alert (82°N) such as the 2nd highest December temperature ever.
After Christmas, a significant warm period will shift to Europe, too, on the front side of the next part of a polar vortex. Extreme winter is forecasted to peak around 31.12. 2021 – 9.1.2022 /https://mkweather.com/the-long-term-forecast-for-europe-until-30-january-2022/; https://mkweather.com/the-long-term-snow-forecast-for-europe-until-30-january-2022/; https://mkweather.com/a-long-term-forecast-for-europe-until-31-january-2022//.
Meanwhile, in the USA and Canada, gradual strengthening of Winter 2021/2022 is forecasted, but in eastern and southern USA should be January still very warm /https://mkweather.com/the-long-term-forecast-for-the-usa-canada-and-mexico-until-30-january-2022/; https://mkweather.com/the-long-term-forecast-for-the-usa-until-31-january-2021-mostly-warm-christmas-and-new-year-2021-2022//.