Add Yahoo as a preferred source to see more of our stories on Google. A Polar vortex has covered the Philadelphia region under a canopy of frigid temperatures, but many people may not realize what a ...

A rare and powerful blast of Arctic air swept across the United States in November 2025, shattering temperature records and disrupting daily life for more than 170 million people. As the cold deepened ...

Winter in New York City might be extra cold this year, and it's all because of a polar vortex on the other side of the world. Every year, meteorologists monitor the weather in Siberia, where snow ...

A Polar vortex has covered the Philadelphia region under a canopy of frigid temperatures, but many people may not realize what a Polar vortex actually is, and the dangers — like frostbite — such ...