Polar Vortex 2024 Usa By State. 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. A strong/stable polar vortex usually means strong polar circulation and jet stream.

The polar vortex is descending on the northeastern united states, bringing bitterly cold arctic air and causing temperatures to. The frigid weather system funneling into colorado comes from the “polar vortex,” a region of cold air and low pressure that’s always circulating near the north.