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

As we look toward mid-December into January, 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.

In 2014, the term “polar vortex” burst on the scene across Canada and the U.S. as temperatures plunged. In some places, it ...

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

The culprit behind the country’s somewhat wacky weather, or at least part of it, is the (aforementioned) probable sudden ...

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

The US National Weather Service warns that La Niña, the MJO and a rare Sudden Stratospheric Warming could bring winter-like ...

As winter approaches, Ontario is bracing for a significant weather event that promises to blanket the region in Arctic air and heavy snowfall. Forecasters predict that while the northern parts of the ...

After a weekend of milder temperatures, a cold snap is expected to hit the Milwaukee area starting Tuesday, Nov. 25.

A rare November sudden stratospheric warming event could lead to a polar vortex bringing unseasonably cold weather to Iowa at ...