As detailed in the latest AccuWeather winter forecast, much of the nation, including New York, is in store for a more ...

A jet stream plays a very important role when it comes to influencing weather patterns, particularly in bringing colder ...

The polar jetstream lies between summery south and wintry air north of the jetstream. Here is the upper-air flow at 15,000 feet up in a forecast for 10 days from now. The solid black lines show ...

As detailed in the latest AccuWeather winter forecast, much of the nation, including N.Y., is in store for a more temperate season. However, a potential disruption of the polar vortex could result in ...

The strong winds result from the sharp temperature difference where the warm tropical air meets the cold polar air from the ...

To analyse historical variability in the position of the polar jet stream over Europe, we developed a tree-ring-based reconstruction of European summer jet-stream latitude, using temperature ...

The polar jet stream circles the northern hemisphere ... But rising air temperatures mess with that hustle and flow. The Arctic is warming twice as fast, on average, as the rest of the planet.

and unleashing the polar jet stream onto the mid-latitudes, Cohen explained. That’s because rising Arctic temperatures have destabilized the way that air flows around the world. In particular ...

For the U.S., this typically means that the polar jet stream dips through the central part of the country, which allows more colder air to flow south into the northern and midwestern states from ...