Meteorologists warn that the coldest burst of Arctic air this season is coming to put an icy and prolonged exclamation point ...

America is bracing for the coldest arctic blast of the season as a polar vortex is set to bring 'most severe' cold snap and ...

When the polar vortex is strong and stable, that cold is concentrated over the North Pole. However, it’s when that vortex is disturbed by influxes of warm air that we see changes in the air flow.

In Hattiesburg, there's a cold weather advisory through 10 a.m. Wednesday ... As they describe it, the polar vortex circles the north pole counterclockwise. the polar jet stream circles at a ...

A strong polar vortex — and one that stays swirling ... they may be translating into outbreaks of cold weather that are more widespread and last longer, Francis said. Her research suggests ...

The polar vortex lives in the tropopause ... New England has remained mostly on the fringe of this massive cold weather outbreak, which has led to very cold temperatures, but nothing we haven ...

How it affects weather, according to the National Weather Service: During winter, the polar vortex expands and sends cold air south. When the vortex weakens, it can break apart and send cold air ...

During winter, the polar vortex at the North Pole can loosen up and expand, sending cold air south and causing outbreaks of chilling cold weather into the U.S. The worst of the cold temperatures ...

They invade lower latitudes at irregular intervals, according to the weather service. This arctic air tends to be colder than polar air. The polar vortex is a large area of low-pressure and cold ...

Dozens of US states will endure the lowest temperatures they have felt in years as a polar vortex brings 'life-threatening' cold next week The National Weather Service (NWS) said that much of the ...