A rare "daughter polar vortex" is set to plunge millions of Americans into freezing temperatures as a prolonged period of ...

Daughter polar vortices' could bring snow and ice to parts of northern, central, and eastern United States later this month, ...

Arctic air has brought chilling temperatures as low as 12 degrees in New York City on Monday night but are we in a polar ...

Like much of the U.S., Wisconsinites woke up Tuesday morning to bitter cold conditions. Many schools and colleges throughout the Milwaukee area closed as the area braced for the dangerous freezing ...

The polar vortex can be a powerful source of winter weather, but it's not the only cause of severe cold and snow in regions better known for warmth and sunshine. The Gulf Coast states are still ...

The polar vortex always exists near the poles, however, it weakens during summer and strengthens during winter, says the U.S. National Weather Service,. The U.S. National Weather Service says that ...

A blast of arctic air from Canada has brought the season's coldest weather ... here to see them. Polar vortex and jet stream are both extending southward into the US The National Oceanic and ...

New York’s being hit by an arctic polar vortex, making temperatures drop hard overnight after a snow storm hit on Sunday.