Deep penetration of cold temperatures and a coastal storm will bring bomb cyclone and polar vortex into your newsfeeds.

Despite being notorious for bringing brutal cold and dangerous wind chills, the polar vortex has a surprising upside.

The weather story for the second half of this week is bitter Arctic cold once again. There continues to be signs the cold ...

Rising Arctic temperatures and melting sea ice could be causing cold air to flow into the Northern Hemisphere. But not all ...

Temperatures could fall below -20 F across certain parts of North Dakota and Minnesota.

Don't let the incoming string of relatively warm days in the greater Philadelphia region fool you; the polar vortex is still around.

A chilling polar vortex is set to bring snow and ice to the South and East this week. We show where.

Much of the nation east of the Rocky Mountains is hunkered down for what could be the worst winter storm of the season.

Meteorologists warn that a stretched polar vortex could bring severe winter weather to much of the United States.

Since we are deep into Arctic air, the snow will be slowing down, for at least one week. As the somewhat warmer air shifts ...

A collapse in the polar vortex is letting Artic air come here. What that means, and why it happens.

A major ice storm is expected to impact multiple states from Texas to Georgia this weekend, ...