Polar Vortex 2024 Michigan Usa. This situation favours an undulation model on the scale of the northern hemisphere, creating conditions conducive to descents of cold air, more or less vigorous, as. With a stratospheric warming event expected to develop, we currently see a rapid breakdown of the polar vortex and a cold weather pattern change across the united states in the second half of february and possibly.

But it’s high up in the stratosphere, that layer of. A strong train of pressure waves is building across north america.