Only in series of the last articles, we have described an anomalous situation in Northern Hemisphere, with many all-time early winter records (“never or many decades has been so cold so early”):
Recorded were the strongest early frosts in the Siberian coldest region in all-time history (-61,1°C – updated value) /https://mkweather.com/historical-times-for-siberia-610c-has-never-been-measured-so-early//.
In Europe, the strongest early frosts since 1945 have surprised Sweden (-43,8°C) /https://mkweather.com/the-strongest-early-frosts-in-the-baltic-region-in-62-years-since-1959-tartu-estonia-276c-zoseni-latvia-264c//, the strongest early frosts since 1959 Estonia (-27,6°C) /https://mkweather.com/the-strongest-early-frosts-in-the-baltic-region-in-62-years-since-1959-tartu-estonia-276c-zoseni-latvia-264c// and in valleys in continental Europe was measured -22,0°C so far /https://mkweather.com/220c-in-pontets-france//.
Snowfall even appeared in Ain Sefra, Sahara desert, Algeria /https://mkweather.com/collapse-of-atmospheric-circulation-snowing-in-ain-sefra-sahara-algeria//.
All after anomalously cold Arctic, with the 2nd highest Arctic Sea Ice Extent in the last 15 years /https://mkweather.com/arctic-sea-ice-extent-is-the-2nd-highest-in-15-years/; https://mkweather.com/20-vessels-stuck-and-ice-locked-in-northern-sea-route-the-arctic//.
News from the last workweek moreover confirmed the next similar record from the southern half of Canada.
In Key Lake, Saskatchewan, only -44,6°C was on 7. December 2021 measured, which is the 2nd coldest minimum temperature so early in the winter!
On the other hand, Nova Scotia on the eastern coast, reported a very warm +18,3°C, very close to the monthly province record. After a warm spell, however, a severe blizzard has come above Atlantic Canada (Tweets below).
Only in the last period, we were informed about extreme frosts in Canadian Arctic up to -46,0°C and in some cases, they were the strongest early frosts since 2004 /https://mkweather.com/eureka-431c-the-lowest-temperatures-in-canadian-arctic-in-early-winter-since-2004/; https://mkweather.com/canada-460c-daily-records-in-yukon-were-broken//.
Hawaii only before a few days reported the coldest day since 1979 /https://mkweather.com/hawaii-hit-the-coldest-weather-since-1979-brought-blizzard-and-floods//.
Simultaneously, the all-time December Canadian record, +22,5°C, near Vancouver, was on 2. December 2021, measured /https://mkweather.com/333c-near-la-denver-still-without-snow-and-41-year-december-record-and-canada-225c-the-highest-national-december-temperature-in-history//.
Currently, tornado outbreaks in the USA are bringing a life-threatening situation /https://mkweather.com/breaking-ef4-tornado-in-kentucky-killed-50-people-it-was-historic-winter-supercell//, caused by unprecedented winter heatwaves /https://mkweather.com/winter-tropical-heatwave-hits-the-usa-unseasonably-hot-from-the-south-to-the-north//.
This trend will be ended by Arctic blast after 20. December 2021 in the USA /https://mkweather.com/winter-will-come-to-the-usa-shortly-before-christmas//, in Canada, gradually from the north after 15. December 2021 /https://mkweather.com/a-long-term-forecast-for-the-usa-can-mex-until-10-january-winter-will-be-gradually-strengthening//.