~ The Asian rogue vortice marked the end of the Siberian Cold Temperature North Pole
~The North Pacific ocean quickly vanished it despite being huge
~But this was a sign of very important circumstances change on Continental scales.
Following the Niagara Rogue vortice came the Sakhalin Rogue on February 4, massive and super cold (-38 at 700 mb), it had no chance to last long thanks to the warmed North Pacific:
Sakhalin Island had a brief encounter with a rogue vortice, just North of Hokkaido Island Japan, the coldest air in the world lasted less than one day, the CTNP reappeared 5232 km in a mere few hours to Ellesmere Island . This rogue was propelled towards an unforgiving Pacific blob of warmer sea surface temperatures. The consequence neatly shows how important surface physical properties are with respect to the entire atmosphere immediately above. Conversely, we look at the rapid warming of Siberian air column as opposed to the Canadian Archipelago sudden deep cooling. As I am right under the Canadian cooling side, I can attest 2 major converging factors making it so. The top of snow temperature T*** has suddenly become much colder than surface air 2 meters above, explainable by the fact that permafrost active layer has finally cooled (to the equivalent point to places with far less snow cover which happened several weeks ago). Secondly the atmosphere has dried further more, having shed away the last remnants of moisture coming from open sea water now covered by sea ice. South Siberia had less snow cover than Ellesmere, and the new wave of deep cold can be traced to that Island, its thick snow blanket insulation finally gave way to the normalization of temperatures only time can provide in total darkness. The heat capacity of land is lesser than snow, so the rising South Siberian sun played a role in vanishing Siberias reign of winter coldest for current winter 2020-21. WD February 7, 2021
No comments:
Post a Comment