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 ...

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 ...

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 ...

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

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

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

A 'polar vortex collapse' is set to plunge the United States back into the frigid weather much of the country suffered through in February. This weather phenomenon is expected to bring more winter ...

The Met Office says there is an 80 per cent chance of sudden stratospheric warming in March, which could bring severe and ...

During the winter, the polar vortex can strengthen and weaken - and even reverse direction - which has effects on the weather ...

It’s really, really cold again — as the US shivers through at least the eighth blast of air from the Arctic this winter. Winter, which is warming faster than any other season for much of the ...