The polar vortex could be reversing in a sudden stratospheric warming event, with the potential to send Arctic air and storms ...

It’s really, really cold again – as the US shivers through at least the eighth blast of air from the Arctic this winter. Here’s why it keeps happening.

The polar vortex could bring a cold blast to millions across America in the second half of March, AccuWeather said in a media ...

While cold temperatures and snow are not at all unexpected in many parts of the world, they are quite rare in others. In ...

The National Oceanic and Atmospheric Administration (NOAA) explains that a polar vortex is a large area of low pressure and cold air currents which circulate around both of the Earth’s poles. It has a ...

A polar vortex collapse is set to send the mercury plunging as "extreme conditions" sweep across the US and Canada. The meteorological switch-up is set to develop by the middle of the month and ...

Winter isn't over just yet. A major shift in the weather pattern could have millions across the United States once again reaching for their winter coats later this month before milder springlike air ...

A senior meteorologist with AccuWeather foresees shots of cold air infiltrating the Northeast in the coming weeks.

This diagram shows the general pattern and position of a stretched polar vortex that has brought the US multiple blasts of Arctic cold this winter.(CNN Weather via CNN Newsource) For Bay Area ...

A polar vortex collapse is set to send the mercury plunging as "extreme conditions" sweep across the US and Canada. The meteorological switch-up is set to develop by the middle of the month and will ...

How Alaska’s cold keeps ending up in the Lower 48 A few atmospheric factors — including the polar vortex — have come together to make the US the epicenter of cold this winter. One is a ...