Polar Vortex Chicago 2025 Path. Early data shows that the polar vortex is likely to be weaker than normal in the winter of 2024/2025. Dangerously cold weather from the arctic is forecast to hit the u.s.
Stratospheric warming across eurasia triggers a polar vortex across northwest russia later next week. A weaker polar vortex usually means a weaker jet stream, which increases the chance of a more dynamic.