Current Polar Vortex 2025. The polar vortex (pv) continues to transition to different phases or modes at breakneck speed. A strong/stable polar vortex usually means strong polar circulation and jet stream.

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. Below is the image of the polar vortex in the lower stratosphere at the 50mb pressure level (20km/12.5miles) 3 weeks ago.