A polar vortex dipping down from Siberia is bringing a cold front with frigid temperatures to millions Americans. See maps of the arctic blast.

As the Arctic rapidly warms, the temperature difference between the polar region and lower latitudes decreases, which weakens ...

The Deep South of the United States was hit with a rare snowstorm, the result of a collision of air pressure systems moved by ...

A strong polar vortex in the stratosphere has brought subzero temperatures to the Midwest, Mid-Atlantic and deep into the South.

An American Airlines regional jet collided with a U.S. Army Black Hawk helicopter on Jan. 29. Both aircraft plunged into the ...

(AP) — Telescopes around the world have spotted a monster radio jet streaming from a quasar dating ... when the universe was just 9% of its current age — within the first 1.2 billion years.

For both events, you can blame the jet stream – the fast-moving air currents that flow west to east around the globe. In October 2024, the polar jet had buckled, trapping a high-pressure ...

WASHINGTON, Jan 21 (Reuters) - 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 ...

BASICALLY, ALL JANUARY LONG HAS BEEN FOR THESE SHOTS OF COLD AIR TO COME IN OUT OF SOUTHERN CANADA, AND THAT HAS KEPT THE JET STREAM WELL TO OUR SOUTH. IT’S KEEPING THE STORMS AT BAY AS WELL.