The National Weather Service is warning people to remain vigilant because this ice storm is not over yet. Here's the latest for South Carolina.

The polar vortex collapsed, and severe temperatures are set to dominate most of the country in the coming days. Single-digit ...

A deadly and historic winter storm is entering its final act in New England on Monday. The system carved a destructive ...

Behind the historic winter storm that blasted 40 states this weekend, a dome of Arctic air associated with the polar vortex will bring days of life-threatening temperatures to much of the country, ...

A bitterly cold Saturday lies ahead as arctic air remains anchored in southern Colorado. Light, patchy, terrain-driven snow ...

A powerful winter storm is expected to bring up to 16 inches of snow and frigid temperatures to the NYC area, including parts ...

The North Pole is surrounded by a massive circular upper-air weather phenomenon in the Arctic called the polar vortex. It is ...

Arctic air is moving into West Michigan with temps below zero and wind chills to -20 to -30, with snow, blowing snow and low visibility. Get the latest forecast from the FOX 17 Weather Ready team.

The Chicago area will be under an Extreme Cold Warning on Friday. Local officials are warning residents to be ready for the ...

The frigid winter weather in 1977 and 2010 also occurred when the Arctic Oscillation was in the negative phase.

The meteorologists said the polar vortex system is set up due north of Michigan over Canada's Hudson Bay. It's at least ...

The polar vortex is a large and very cold area of low pressure that surrounds the poles. It always exists, but it becomes stronger and more defined during the winter months. The stratosphere, where ...