北極上空的極地渦旋目前正經歷重大反轉事件，導致其旋轉方向逆轉。這種高層大氣中出乎意料的變化，造成了北極上空臭氧濃度創紀錄的峰值。極地渦旋是一團環繞北極旋轉的冷空氣，對北半球的天氣模式起著至關重要的作用。

The reversal event, which began on March 4, is one of the most extreme atmospheric U-turns seen in recent times. While disruptions to the polar vortex have previously led to extremely cold weather and storms in the U.S., this particular reversal is not expected to result in a significant impact on weather patterns. The sudden warming in the stratosphere, known as sudden stratospheric warming (SSW), is caused by "planetary waves" in the atmosphere.

儘管極地渦旋目前方向逆轉，但風速開始減緩，表明它很可能很快就會恢復正常軌跡。就風速而言，此次事件名列紀錄以來前六名。極地渦旋的變化會影響急流，進而影響全球天氣模式。

總體而言，雖然北極目前的逆轉事件意義重大，但預計不會對天氣模式造成重大干擾。

However, the temporary ozone spike above the North Pole is noteworthy, as it has led to more ozone surrounding the Arctic than in any other year on record. This reversal event is the second of its kind this year, following a smaller event in January that caused a brief cold snap in some states. With the ongoing El Niño phase, further reversals or disruptions may occur in the coming year.