Polar Vortex 2025 Forecast. As you will see, the polar vortex plays by different rules in this 2025 season, helping to create one of the coldest winter months in recent years or perhaps even decades. 'be prepared' the fox forecast center said temperatures will plummet as much as 45 degrees below average in.

You can nicely see how the polar vortex is. The forecasted structure of the tropospheric jet stream (yellow) and several levels of the stratospheric polar vortex from the lower stratosphere to the upper stratosphere in the.