This week’s frigid temperatures come from a familiar culprit: the polar vortex. Typically confined ... temperatures to Texas and caused the near-collapse of the state grid.

A recent study explains how warmer temperatures at the top of the planet destabilize the jet stream and allow colder air to ...

A polar vortex is currently hitting the United States, with schools closed in many areas and at least four deaths caused by treacherous conditions.

The polar vortex is a low-pressure system of cold air that swirls above Earth’s poles. There’s one over the South Pole in ...

ROCHESTER, N.Y. — People across the country and the Rochester area are feeling the impact of the polar vortex. While the polar vortex typically stays in the Arctic, its jet stream could weaken in the ...

It's a term you hear every couple of winters, when we get stuck in the coldest of cold patterns – polar vortex. But what exactly is it and how does it impact our weather? The polar vortex is ...

Recent forecasts suggest some Americans might be getting a much-needed break from the freezing temperatures that have gripped ...

Much of the U.S. is being blasted by ice, snow and wind, as the polar vortex that dipped south over the weekend is ...

The ongoing cold spell, which may bring down the mercury to as low as -50C (-60F), is caused by the expansion of the polar vortex – an area of extremely cold, rotating air around the Arctic ...

However, the especially low temperatures seen in parts of the US this month can be partially attributed to another phenomenon: the polar vortex. The polar vortex is a low-pressure system of cold ...

In short, the answer is the polar vortex. But what does that mean? The polar vortex is a “constant feature” that begins to develop sometime in September and persist through sometime in spring ...

The polar vortex has plunged much of the US into freezing conditions, causing widespread chaos. Heavy snow, ice, and wind led to road closures, power outages, and flight cancellations. At least ...