The polar vortex's blast of Arctic air from Canada brought the season's coldest weather to the majority of U.S. The vortex is ...

This blast of cold weather is due to activity of the polar vortex.

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

Some areas of the U.S. may see temperatures as low as -20 or -30 degrees early next week as arctic air from Siberia rolls in.

The polar vortex is a large area of low pressure, winds, and cold air surrounding both of the Earth’s poles, according to the ...

Here's the latest on the winter storm. A historic winter storm is poised to produce potentially record-breaking snows from ...

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

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

A powerful Arctic outbreak tied in part to the polar vortex is set to send temperatures by next week tumbling down to as cold ...

A polar vortex is forecasted to blanket most of the ... highs in the single digits are forecasted giving people no break from the bitter cold. Lake effect snow is also expected with a chance ...