Polar Vortex 2025 2025. A weaker polar vortex usually means a weaker jet stream, which increases the chance of a more dynamic. The canadian and european models have been more skittish but overall have been focused more in the eastern us.

In the latest european operational forecast of the polar vortex, the stretched pv is directed at the eastern us and not the. The polar vortex plays a crucial role in influencing the course of winter in europe.