As we look toward mid-December into January, the door is opening for some potentially significant winter weather.

Early-season stratospheric warming events spark hype around frigid temperatures. Learn the myths and the science about the ...

For folks who long for cold, the weeks after Thanksgiving might just be a tease for some intense Arctic cold that could ...

The phrase "polar vortex" has captured public attention and is now often misused to describe short-term bouts of frigid ...

WBZ-TV chief meteorologist Eric Fisher explains why the door is opening for some potentially significant winter weather.

A combination of weather conditions may make it colder than usual across parts of the Central and Northern U.S. next week.

A significant change in the atmosphere means the weeks after Thanksgiving could be colder and snowier than normal across ...

A polar vortex — a large area of low pressure — is heading south from the Arctic, bringing with it cold weather across many ...

This weather event may not be constant, but there will be cold waves over multiple days with single-day warmups mixed in.

A rare stratospheric event is forecast to unleash bone-chilling air from a weakening vortex across the US and New England, ...

It's been a warm autumn, so far. But the polar vortex is forecast to change unusually early, and that could impact your ...