Polar Vortex 2024 Newspaper. A major current of circulating air called the arctic polar vortex has completely reversed course and is now spinning 'backwards'. When the ao turns negative, it tends to mean that something has happened in the arctic that leads to milder conditions and a weaker polar vortex, allowing cold to.
When “polar vortex” appears in the news, it can refer to one of two different, but related, weather patterns. The polar vortex occasionally weakens, allowing arctic air to drift down into the united states.