Brutal midwinter cold is settling in across the eastern United States, and forecasters say it is not leaving quickly. A ...

A major weather pattern change underway across U.S. As we get into next week, the storm track looks really interesting.

A fast-moving clipper system is expected to bring additional snow to a region that is already well above its winter average.

A severe winter storm that brought crippling freezing rain, sleet and snow to a large part of the U.S. in late January 2026 left a mess in states from New Mexico to New England. Hundreds of thousands ...

WASHINGTON (AP) — Warm Arctic waters and cold continental land are combining to stretch the dreaded polar vortex in a way ...

With over 170 million Americans facing below average temperatures, even colder air may be on the horizon thanks to the displacement of the polar vortex that will lock in a deep winter feel and park ...

Another blast of Arctic air was set to spread across much of the United States from Thursday night, even as local authorities ...

Add Yahoo as a preferred source to see more of our stories on Google. WASHINGTON - All eyes are on this weekend's potential snow and if we're expecting to get some accumulating snow. What we know ...

A polar vortex expansion is bringing extreme cold and heavy snow to over 150 million Americans across two dozen states. Winter Storm Fern is set to cause significant travel disruptions and potential ...

The issue arises when this vortex becomes destabilized. During sudden stratospheric warming events—sharp increases in stratospheric temperatures—the polar vortex can break apart or shift. This is ...

Winter Storm Fern aftermath continues as the East Coast braces for a bomb cyclone and polar vortex, with heavy snow and ...