Two newly identified patterns in the stratospheric polar vortex can send cold air over North America to cause extreme cold ...

One new study identifies a 17 percent increase in the destructive potential of the strongest nor’easters, while another ...

Despite a warming climate, bone-chilling winter cold can grip parts of the U.S. In a study appearing in Science Advances, ...

Even in a warming climate, brutal cold snaps still hammer parts of the U.S., and a new study uncovers why. High above the ...

A rare and abrupt disruption in the Arctic polar vortex is expected to impact spring temperatures across Europe and parts of the United States. Scientists are monitoring the event closely, as the ...

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 ...

During the polar vortex, temperatures could reach 12-25°F below average in some states, according to AccuWeather. “This could end up being the coldest January since 2011 for the U.S. as a whole ...

The term “polar vortex” usually refers to the gigantic circular upper air weather pattern in the Arctic region. It is a normal pattern that is stronger in the winter and keeps some of the ...

"Weather forecasters examine the polar vortex by looking at conditions tens of thousands of feet up in the atmosphere; however, when we feel extremely cold air from the Arctic regions at Earth's ...

According to the National Weather Service (NWS), the Arctic polar vortex is a powerful band of west-to-east winds that develops in the stratosphere, about 10 to 30 miles above the North Pole ...

The polar vortex: What to know about the weather feature responsible for the arctic blast Published: Jan. 04, 2025, 5:00 p.m. An AccuWeather graphic shows winter conditions in the U.S. during a ...

The polar vortex blasts are expected to hit from Jan. 3 to 4, Jan. 7 to 8 and Jan. 11 to 12, according to AccuWeather meteorologist Alex DaSilva. Advertisement What exactly is a polar vortex, and ...