A detailed analysis of polar vortex collapse mechanisms and how they relate to occasional North American cold outbreaks.

The polar vortex is notoriously unpredictable, and so far there doesn’t seem to be clear pattern in disruptions. In the 1990s, there were almost no disruptions to it.

A polar vortex “is a large area of low pressure and cold air surrounding both of the Earth’s poles,” the NWS explains. In the Northern Hemisphere, the vortex tends to expand in the winter ...

The polar vortex might mean cold weather—but it's not clear how much snow or ice that might mean. Jaymantri/Pexels Get the Popular Science daily newsletter💡 ...

In a year without much winter weather, there’s a chance of a bitter blow before spring takes hold. Experts say a disruption of the polar vortex could unleash cold, stormy conditions to the ...

The polar vortex is a counterclockwise spinning area near the top of the atmosphere and usually centered near the North Pole region. This fast spinning vortex is about 50,000 feet in the atmosphere.

Hypnotic Video of GIGANTIC US Aircraft Carriers in the Middle of the Sea King Charles' Royal Residence Announces Closure with ...

When the polar vortex is "strong," cold air is less likely to plunge deep into North America, Weather.com meteorologist Jonathan Erdman said. The stronger the polar vortex, the milder our winter is.

When the polar vortex weakens or even splits, it allows frigid air to escape and push southward toward the USA. The stronger the polar vortex, the milder the USA's winter is.

The polar vortex can't be felt in the United States or anywhere on Earth. Brutally cold temperatures are heading to the Midwest and Northeast this week -- but don't mistake this for a polar vortex ...

We've mentioned the polar vortex several times in recent days. We've said, for instance, that it's "a low pressure system that's usually whirling around the North Pole but has weakened and come ...