As the National Weather Service explains, the polar vortex is an area of low pressure and cold air that exists over both of Earth’s poles 10 to 30 miles above the surface. The term vortex is used to ...

So what is a polar vortex collapse and why does it affect weather so dramatically? As the National Weather Service explains, the polar vortex is an area of low pressure and cold air that exists over ...

A 'polar vortex ... weather phenomenon is expected to bring more winter weather and extremely cold temperatures by mid-March, likely leading to widespread travel disruptions for millions. The ...

A massive storm developing today is set to bring life-threatening tornadoes and potentially historic floods in what could be ...

A polar vortex is a large area of low pressure and cold air that surrounds the Earth’s poles, according to the National Weather Service. Polar vortexes typically develop in September and ...

After Feb dumped a wave of unconditionally severe winter weather ... the polar vortex has been shifting shapes back and forth from a normal to a stretched state at an unusual frequency this year, ...

Reports of an impending polar vortex collapse are ... freeze are not supported by current weather models for Ottawa. “None of the sources I trust — National Oceanic and Atmospheric Administr ...

This video is from Papillion, NE tonight where the local NWS blizzard warning in effect until Wednesday morning reads: “Blizzard conditions expected. Total snow accumulations of 3 to 6 inches ...

Have you noticed New York City has felt especially windy lately? You’re not imagining it. This March, NYC has been stuck in a ...