A dramatic blast of cold air may be coming for the United States in late January, courtesy of the polar vortex. Here's what ...

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

The polar vortex is unleashing an extreme cold wave across the United States, bringing a historic arctic blast, violent ...

What is polar vortex and how much snow is expected in US? A winter storm linked to polar vortex disruption has impacted ...

A significant portion of the U.S. is experiencing below-average temperatures due to a disrupted polar vortex, affecting over ...

The polar vortex is bringing bitter cold and snow to NJ this weekend. Here's the weather forecast, from timing to how much ...