Asbjørn
Rubinmedlem
Hvis man spør hvorfor denne kuldebølgen (og snøværet på østkysten) kom akkurat nå ser man at det passer riktig godt inn, dessverre.
Noe lignende skjedde i 2016:A dramatic spike in temperatures is occurring at high altitudes above the North Pole, where the air is thin and typically frigid. Known as a sudden stratospheric warming event, experts say it’s likely to have potentially significant repercussions for winter weather across the Northern Hemisphere for weeks to possibly months.
This unusually strong event may have profound influences on the weather in the United States and Europe, possibly increasing the potential for paralyzing snowstorms and punishing blasts of Arctic air, with the odds of the most severe cold outbreaks highest in Northern Europe. The United States is slightly more of a winter wild card for now, experts say, with individual winter storms tough to predict beyond a few days in advance.
Recent Extreme Arctic Temperatures are due to a Split Polar Vortex
Abstract There were extensive regions of Arctic temperature extremes in January and February 2016 that continued into April. For January, the Arctic-wide averaged temperature anomaly was 2.0°C above the previous record of 3.0°C based on four reanalysis products. Midlatitude atmospheric...
journals.ametsoc.org