Summary:
- The article discusses the potential for a "polar vortex reversal" that could bring late-winter or early-spring snowstorms to parts of the United States.
- The polar vortex, a large area of low pressure and cold air surrounding the North Pole, can sometimes weaken and split, allowing cold air to spill southward into the U.S.
- This phenomenon, known as a "sudden stratospheric warming," could lead to a period of colder temperatures and snowfall in the coming weeks, even as spring approaches.