What is wind chill temperature? What to know as extreme cold to hit Western NC

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

What’s Up With This Big Freeze? Some Scientists See Climate Change Link

A warming Arctic can stretch the polar vortex, a high-altitude air ribbon, one says. The “wobble” can disrupt the jet stream, ...

What is a polar vortex? Arctic weather pattern set to blast over a dozen states with season's coldest temperatures

A winter buzzword, explained.
The New York Times

Some of the Coldest Temperatures of the Season Are Sweeping Through the U.S.

There’s no denying it. It’s really December. -40 -20 0 20 32 Source: NOAA Two separate shots of cold Arctic air moving down from Canada are predicted to send temperatures across a portion of the ...
AOL

Weather Words: Surface Temperature

When it comes to winter weather and icy roads, surface temperature often matters more than the air temperature you see in a forecast. Surface temperature refers to the actual temperature of the ground ...