Similarly, wind chill temperatures measure how cold people and animals feel when outside, measuring the rate of heat loss ...

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

A weakened polar vortex is expected to bring extremely cold Arctic air to the central and eastern U.S. Temperatures in parts of Minnesota are forecast to drop as low as –26°F over the weekend. The ...

A lobe of the polar vortex, a ring of freezing air typically found near the North Pole, will once again move into the central and eastern states this week, bringing some of the coldest air of the ...

As a winter storm approaches Western North Carolina and other regions, here's what to know about deciphering forecaster terms ...