As the jet stream slows down, it becomes wavier. Where it forms extreme undulations, weather systems become trapped in one place for prolonged periods, according to Francis. Between 1995 and 2013 ...

And what their new model found was that as the Arctic sea ice retreats, the atmospheric waves have warmed the polar stratosphere in ways that have been amplified by the behaviour of the ozone layer.

The climate model projections about how often the jet stream will stall and lead to extreme events from now until 2100 range from a slight decrease to a 300 percent increase, said co-author Kai ...

That tends to bulge the jet stream northward, which creates a dip to the east that has helped usher more Arctic air down into Siberia, and also caused earlier snowfall there.

Extreme cold weather being caused by the jet stream is not a result of Arctic warming, research suggests. Past studies have indicated the warming Arctic region causes a wavier jet stream – which ...

An unusually wavy jet stream — a ribbon of fast-moving air that flows over the Northern Hemisphere — is to blame for an Arctic onslaught that is blasting most of the United States with snow ...

Francis thinks that, as the cool air of the Arctic becomes warmer, the jet stream is slowing down, almost to the point of stopping trapping weather systems in one place for prolonged periods.

"The temperature difference between the Arctic and lower latitudes is one of the main sources of fuel for the jet stream; it's what drives the winds. And because the Arctic is warming so fast ...

He was making an unknowing reference to the jet stream, which drives the weather over North America and Europe like a high-altitude conveyor belt. But increasingly, the jet stream is taking a more ...

Blame jet stream, Arctic air for repeat snowstorms By Carolyn Y. Johnson Globe Staff,February 10, 2015, 6:38 p.m. 8 ...

Capital Weather Gang Arctic warming, jet stream coupling may mean another winter of extreme storms and cold air outbreaks for eastern U.S. December 24, 2013 By Steve Tracton ...