Is There A Polar Vortex Coming 2025. The weakest polar vortex years (dark green dots) occur in easterly qbo winters. A new polar vortex is forming in the stratosphere over the north pole.
Strong polar vortex near the north pole on november 15, 2025. Current forecasts indicate a strong stratospheric warming event in january 2025, potentially leading to a weakened polar vortex and a significant weather pattern shift across.