The Great Lakes and Northeast are bracing for another cold shot later this month — down to single digits in places. How cold will it get in NY?

While meteorologists say that in most cases, polar vortex intrusions aren't disruptive, they are sometimes associated with cold air outbreaks and winter storms, which can in turn affect travel ...

The last time Texas experienced a “polar vortex effect” was last winter, when a cold front brought frigid temperatures and wind chills down to -15 degrees. David Montesino dmontesino@star-telegram.com ...

A potential wobble in the polar vortex could bring a return of arctic air to Ohio and the northern U.S. around Thanksgiving. Forecasts show below-average temperatures for about half the country ...

A potential wobble in the polar vortex could bring Arctic air to Michigan and the northern U.S. around Thanksgiving. A weakened polar vortex, combined with other atmospheric patterns, increases the ...

The polar vortex, a weather feature that contributed to the Great Texas Freeze, is currently forming in the stratosphere over the North Pole and is expected to continue to strengthen rapidly as we ...