Glacier Express' Excellence Class seats could turn any miserable 8 a.m. train commuter into Francis Bourgeois. That is if you can afford it. A ticket for the plush eight-hour journey through the ...

The first is the polar jet stream, a huge current of air that circles the globe between 50 and 60 degrees north latitude within the low-altitude troposphere, the same layer of atmosphere where ...

However, a deep freeze, thanks to the polar vortex dipping down from Siberia, is bringing an even harsher arctic blast to million Americans this week. Maps show what to expect as the cold front ...

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 ...

Most of the US will enjoy milder temperatures on Thursday, but the warmup will be brief as a polar vortex will send temperatures tumbling below freezing for most of the nation starting this ...

A lobe of the polar vortex, a stormy ring that typically keeps the coldest air locked up near the North Pole, will dip southward into the United States this weekend into next week. Polar air ...

One of the key players in these dramatic shifts is something called the polar vortex. The polar vortex is a massive area of cold air located high in the atmosphere, typically spinning over the ...

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 ...

An icy winter storm fueled by a polar vortex is set to drop 1 to 3 inches of snow on the metro area Monday, starting in the thick of the morning commute and only intensifying as the evening rush ...

The connection, Cohen said, lies in the polar vortex, a swirling body of frigid air that circles the Arctic. A second polar vortex swirls over Antarctica. Typically that cold air is contained by a ...