As the National Weather Service explains, the polar vortex is an area of low pressure and cold air that exists over both of ...

While cold temperatures and snow are not at all unexpected in many parts of the world, they are quite rare in others. In ...

The term “polar vortex” might conjure images of mythical icy storms swirling through the North Pole but in reality it’s a crucial component of our ... Read more The post What Causes the “Polar Vortex” ...

When the wind surrounding the polar vortex is strong, it's considered 'stable.' This means that the bulk of brutally cold air stays in close proximity to the Arctic. How does a stable polar vortex ...

A senior meteorologist with AccuWeather foresees shots of cold air infiltrating the Northeast in the coming weeks.

Should the vortex be weakened, the jet stream ends up less stable. A polar vortex collapse resulted in widespread snowstorms and below freezing temperatures that affected millions of Americans.

When the vortex is weakened, the jet stream can become less stable and lets cold polar air spill southward leading to extreme and unpredictable weather. Mr Pastelok explained that there is a small ...

A strong polar vortex is typically associated with a strong and stable jet stream. When the polar vortex is strong, the jet stream tends to flow more powerfully and steadily in a circular pattern ...

“The polar vortex has been particularly strong and stable the past few weeks. That has kept the coldest of Arctic air largely confined to the North Pole,” says Mike Bettes, meteorologist with ...

The polar vortex correlates with the narrow bands of wind that blow about 8km to 11km above the Earth's surface, which is known as the jet stream. Should the vortex be weakened, the jet stream ends up ...

That, meteorologists warn, could lead to a cold spell that lasts weeks. “The polar vortex has been particularly strong and stable the past few weeks. That has kept the coldest of Arctic air largely ...