The North Atlantic and Arctic weather pattern is a real mess. Frequent episodes of severe polar warmth relative to normal conditions for this time of year have been a persistent feature. Arctic sea ice extents are at record lows. Meanwhile, the upstream atmosphere generated a record-smashing high pressure system and related abnormal warmth over the U.S. East on Wednesday.

(Severe warming, both at the surface and in the upper atmosphere over the Arctic helped to generate a polar vortex collapse during recent days. This collapse, in turn, generated a number of high amplitude waves in the Jet Stream — one of which produced a record high pressure ridge over the U.S. East Coast on Wednesday, February 21. Image source: Earth Nullschool.)

All these severe weather elements have ties to a climate change related condition called polar amplification. A condition that generates mass sea ice loss and…

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