Meteorologists warn that the coldest burst of Arctic air this season is coming to put an icy and prolonged exclamation point ...

The jet stream forms as warm air from the equator tries to slide into the polar vortex, a whirlpool of cold air near the poles. Ordinarily, this would allow warm air to just fill in the polar vortex.

The Arctic Oscillation is expected to be in a negative phase next week, which would allow cold air from the North Pole to ...

According to the Severe Weather Europe website—an online resource of global weather forecasts—a mass of cold air, spurred by the polar vortex, has been forecast to move over Canada and the northern ...

A blast of Arctic air is set to cover much of the United States with temperatures below freezing starting on Friday and into next week, impacting millions of Americans in nearly all of the contiguous ...

It’s been warmer in Alaska than in three dozen other states. If someone asked you, “Where can I go in the United States to ...

(KNWA/KFTA)— After a strong cold front comes through this Saturday ... One way the airmass can be pushed towards us has to do with the polar jet stream and involves the Polar Vortex.

The jet stream forms as warm air from the equator tries to slide into the polar vortex, a whirlpool of cold air near the poles. Ordinarily, this would allow warm air to just fill in the polar vortex.

In Earth's upper atmosphere, a fast-moving band of air called the jet stream blows with winds of more than 275 miles (442 km) per hour, but they are not the strongest in our solar system. The ...