A polar vortex will plunge Colorado into bitter, sub-zero cold this weekend and could bring up to 10 inches of snow in some ...

More than 500 flights were delayed or canceled at Denver International Airport on Monday as a polar vortex continued to ...

Still, several Colorado school districts will start late on Tuesday as the state waits out the last of subzero temperatures.

Here is what is and isn't a polar vortex when Colorado receives cold like what is forecast for the holiday weekend.

TikTok stopped working in the United States late on Saturday and disappeared from Apple and Google app stores ahead of a law ...

Colorado will see its coldest temperatures of the winter as a mass of cold air descends on the state from the Artic. But despite the bitter cold, this weather event is not a polar vortex.

Here are the lowest temperatures across Colorado on Tuesday morning, according to the National Weather Service.

The Arctic air mass will be in Colorado Friday afternoon, but the effects of the polar vortex won't be fully felt until after the sun goes down. Snow will come into the state's high country in two ...