The polar vortex rages in the arctic during the winter, producing winds up to 150 miles per hour. But when that vortex weakens, arctic air escapes to more southerly latitudes, which creates ...

Some of the coldest air in years is expected to plunge into the High Plains, Midwest and finally the East in the coming days as arctic air dips down into the Lower 48 for a spell. The mere mention of ...

Atmospheric scientists were surprised earlier this month to notice that the Arctic's polar vortex reversed its trajectory as it began spinning in the opposite direction. What's more: It has yet to ...

A researcher expects the polar vortex to strengthen over the next two weeks. This has a big impact on our day-to-day weather here in the Great Lakes region and even the Northeast. Judah Cohen, ...

The polar vortex at the North Pole made a sudden U-turn March 4. The jet stream, which normally travels from west to east in the Arctic, reversed for 21 days. This rare event is known as sudden ...