Katha Marion

Polar Vortex February 2025 Prediction. There is a chance that the pattern could change by the end of winter and early spring, associated with the polar vortex. For the gefsv12 forecast issued on february 12, ~90% of the individual model runs predict a reversal of the vortex winds (top, thin magenta lines), accompanied by a sharp.

The weakest polar vortex years (dark green dots) occur in easterly qbo winters. The polar vortex sweeping across the u.s.