Polar Vortex Next Week 2025. The image below shows geopotential height anomaly at the 10mb level (30km/18.5miles) for early next week. A powerful arctic outbreak tied in part to the polar vortex is set to send temperatures by next week tumbling down to as cold as 25 to 35 degrees fahrenheit below.
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. However, a deep freeze, thanks to the polar vortex dipping down from siberia, is bringing an even harsher arctic blast to million americans this week.