Polar Vortex Chicago 2024 Map. This article was updated on the 25th of november, 2024,. In the lowest layer of the atmosphere, the troposphere—where weather occurs—there spins a polar vortex that circles the globe year round, a jet stream that’s also sometimes referred to as the.
Media use of nws web news stories is encouraged! January 2021 is favored to be wetter and warmer than average for much of the country.