252K views · 2.5K reactions | Surges in Arctic air caused by wobbling polar vortex, Sean Batty explains. Northern parts of Scotland have been hit with heavy snowfall and the south could be hit next. It might feel like winter has suddenly remembered it’s winter – but what we’re seeing just now isn’t just a local story. The cold gripping parts of Scotland is part of a much wider, and more complex, weather pattern. #Scotland #news #UK #Weather | STV News | Facebook

A major stratospheric warming high above the Arctic is disrupting the polar vortex. And it is poised to push Arctic air into North America and Europe. Forecast models are signaling a rare, high-altitude disturbance that could significantly shift winter weather for millions over the next few weeks. A sudden stratospheric warming is unfolding, with upper-air temperatures surging by tens of degrees within days. This rapid heating is weakening the polar vortex—the fast high-altitude winds that usual