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

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.

As the National Weather Service explains, the polar vortex is an area of low pressure and cold air that exists over both of ...

The polar vortex is a “constant feature” that begins to develop sometime in September and persists through sometime in spring ...

Winter weather will return just days after spring started as a cold air mass settles in.AccuWeather’s long-range experts say that a weakening polar vortex will bring unseasonably cool conditions this ...

Several days into spring, wintry weather will linger as a cold air mass settles in.AccuWeather’s long-range experts say that ...

Meteorologists also project a few rainy days ahead, which should aid in relieving areas of New England experiencing weak to ...

After Feb dumped a wave of unconditionally severe winter weather in the US, March is about to unleash those conditions again due to the polar vortex collapse.

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

Spring may have officially arrived last week, but Mother Nature still has some wintry tricks left in the tank for the Midwest ...