The polar vortex is expected to reach the Utah-Idaho border sometime in the late afternoon and evening Friday as it continues ...

According to the National Weather Service, a polar vortex will impact most of the country this weekend, here is what you need ...

A polar vortex dipping down from Siberia will bring a cold front with frigid temperatures to nearly 300 million Americans.

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

A blast of Arctic air is set to cover much of the United States with temperatures below freezing starting on Friday and into ...

A frigid cold front will keep Colorado below freezing over the weekend. Several rounds of snow in the Denver metro area are ...

NEWS has issued Weather Impact Days for Friday through Tuesday due to subzero temperatures, wind chill and snow.

A rush of Arctic air will overwhelm the weather pattern across North America starting this weekend, plunging Eastern Canada into some deep cold.

Wind chill values are expected to drop below 10 degrees, with some locations seeing wind chills closer to zero. Forecasters ...

AUSTIN, Texas — An Arctic cold front moving through Central Texas will bring the coldest air of the winter so far. After ...

We have one more nice and warm afternoon for today before we see some big changes headed our way in our weather pattern. A very potent arctic polar front ...

People living "basically anywhere from the Rockies eastward" will see extremely cold temperatures over the next several days, ...