Current Polar Vortex 2025 Forecast. As you can see, a la niña phase has a higher chance of producing a polar vortex collapse event. Early data shows that the polar vortex is likely to be weaker than normal in the winter of 2024/2025.

‘be prepared’ the fox forecast center said temperatures will plummet as much as 45 degrees below average in. As you can see, a la niña phase has a higher chance of producing a polar vortex collapse event.