"The outbreak this week will be the first of probably three such rounds with it. Another cold blast is likely next week and a third the week after that," AccuWeather Lead Long-Range Meteorologist Paul ...

There are early signs that the northeastern United States may be in for several waves of below-average low temperatures this ...

The polar vortex is on the move and will take up a position near Hudson Bay, Canada, directing rounds of Arctic air southward ...

Storms, some of which may bring snow, are expected to accompany a push of colder air this week, and the next storm is ...

High above the North Pole, about 10 to 30 miles above Earth’s surface, sits a massive whirlpool of icy air known as the polar ...

Some forecasters say a complex dance involving the polar vortex could send some of Earth's most extreme cold toward the ...

The polar vortex is on the move with its Arctic blasts, but so are storms packing snow and ice. The weather pattern setting ...

Brace yourselves; winter is coming. "Polar vortex" may have been the weather catchphrase of last winter, but it's coming back and it's bringing snow and freezing temperatures along with it. While it ...

A disturbance in the polar vortex could spill icy cold air south into the United States much earlier than usual, the National ...

But across the country, AccuWeather meteorologists are predicting major travel disruptions as a storm system is set to batter ...

Winter isn't over just yet. A major shift in the weather pattern could have millions across the United States once again reaching for their winter coats later this month before milder springlike air ...

Some forecasters say a complex dance involving the polar vortex could send some of Earth's most extreme cold toward the ...