For example, recent observations indicated that fragments of the polar vortex broke apart, sending freezing air towards Central Florida. This shift can lead to unusual weather patterns, even in ...

When the polar vortex stumbles, the weather at ground level can pivot from mild to brutal in a matter of days. A circulation that usually spins quietly above the pole can suddenly send lobes of Arctic ...

Roughly twenty miles above Earth's surface, in a largely invisible layer of the atmosphere called the stratosphere, some of the most dramatic temperature changes on our planet unfold. Major sudden ...