Research has found that rising temperatures in the Arctic are weakening weather systems that normally trap the cold around ...

This strong circulation is known as a polar vortex. This story was updated to fix a typo. CONTRIBUTING Anthony Robledo SOURCE NOAA, Climate.gov, NASA and Royal Meteorological SocietyThis story was ...

With last week's freeze being the second time temperatures dipped below freezing this winter, many are wondering if this ...

Understanding the Polar Vortex The polar vortex is like a massive whirlpool of frigid air moving around our planet's poles.

The polar vortex is like a giant ... allows more arctic air and stormy patterns to develop here in the U.S. A strong one keeps arctic outbreaks at bay. Unfortunately, it is something that cannot ...

Scientists say a warming planet may have been responsible for a winter storm that dropped 10 inches of snow on Northwest ...

At the time, Butler and Ciasto spotted some potential stretching of the polar vortex. But there was another factor in play. "Additionally, a strong ridge of high pressure has been building up ...

The cold temperatures are coming from a not uncommon expansion in the Polar Vortex, which are counter-clockwise rotating air ...

While jet streams are air patterns, the Gulf Stream is an ocean pattern that also has an impact on weather.

Strong wind gusts are expected from Montana to Nebraska this week, according to Accuweather. The freezing temperatures will ...

A strong polar vortex - and one that stays swirling tightly above the pole - depends on a dramatic contrast between frigid polar temperatures and milder conditions across midlatitudes. As rapid ...