Federal forecasters are tracking a weakening polar vortex that could funnel another round of Arctic air into the Northeast during the second half of March 2026. Diagnostic data from NOAA’s Climate ...

Add Yahoo as a preferred source to see more of our stories on Google. The polar vortex is a large area of cold, spinning air that sits near the North Pole and exists year-round. When it weakens or ...

DC swings from a warm 50 weekend to a cold start to the week, with highs in the 30s and a wintry mix as the polar vortex and jet stream bring Arctic air.

The United States is getting slammed by a stretch of weather extremes, from flooding rain to record heat and late-season snow ...

It's that time of the year! An extensive and prolonged Arctic outbreak is on the way to impact much of the United States. From the Rockies through the Northeast and Southeast, temperatures will plunge ...

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 ...

The weather forecast is looking promising for warmer weather as the calendar turns to March. In the East, a dramatic warm-up is in the forecast, and the Climate Prediction Center's outlook for March 6 ...

A potentially major snow storm this weekend could give way to a blast of Arctic air for the second consecutive week. The next polar vortex impact is expected to follow a storm that could dump 6 inches ...

The "polar vortex" talk becomes really popular each year. It usually doesn't surface until winter. Still, this season, the eastern U.S. is getting a shot of frigid air as this infamous polar vortex ...