El Niño's record-breaking force could enter a chaotic dance with another wintertime powerhouse: The polar vortex.

Folks across the central, eastern and southern United States are about to experience potentially record warmth over the next week or so as temperatures skyrocket. "Enjoy the springtime warmth − maybe ...

El Niño, La Niña and the polar vortex can all trigger major shifts in weather far beyond where they begin. The transcript ...

El Niño, shifting ocean patterns, solar activity, and the polar vortex are among the key forces that could shape temperatures, snowfall, and storm tracks. The post The Old Farmer's Almanac is here ...

The polar vortex is so back, and in some parts of the country, the weather system will bring with it up to a foot of snow. If “polar vortex” is giving you déjà vu, that’s because we’ve heard it before ...

Michigan is set for several days of frigid temperatures and heavy lake-effect snow as Arctic air continues its slow march across the eastern U.S. When Arctic air surges into the U.S., the polar vortex ...

Forecast models show Antarctica's polar vortex strengthening as winter continues. Here's why meteorologists are watching and what it means for Ohio.

Nearly all of New England has seen its share of frigid cold days and record mountain snow so far this November — and looking ahead, we’re about to get hit with another blast of Arctic air from a ...

A wide swath of the western U.S. may be in for below-average temperatures as forecasts suggest an Arctic blast is looming. Reading time 3 minutes Much of the contiguous U.S. could be in for a very ...

Boston has seen just one day so far this month where the average temperature was above the seasonal norm, daring me to ask — are you over the cold yet? Astronomical winter hasn’t even arrived (that ...

Severe temperatures are expected to dominate most of the country in the coming days, with single-digit temperatures forecast for parts of the Northeast. Overall, temperatures will begin to warm in the ...