Polar Vortex 2025 Forecast Canada. However next week normal to below normal temperatures across alaska are predicted to flow out of canada into western canada and eventually into the northwestern and eastern us with normal to above normal temperatures. A proper winter period is forecast to arrive within the first days of the new year.

For the gefsv12 forecast issued on 18 december 2024, the winds at 60 degrees north (the mean location of the polar vortex) are forecast to remain stronger than normal for at. The forecast trend of the pv.