Space exploration missions have revealed that polar vortices aren’t uncommon beyond Earth. They’ve been observed throughout ...

When the polar vortex begins to wobble and allows arctic air to spill south into northern Illinois in January, we usually end up with dangerously-cold air around Chicago. When it happens in April ...

STATEN ISLAND, N.Y. — Just when you think winter is dead and gone, it takes another bite at the Big Apple. Thanks to a dip in the jet stream in the eastern U.S., cold air from Canada is ...

There has, however, been a more worrying trend across the Arctic, he says: as the sea ice melts, polar bears are increasingly approaching or wandering into inhabited towns or villages, to feed on ...

"The large polar vortex disruption ... coldest weather bottled up in the Arctic. Previously this winter: Icy air has descended on the US. Is the polar vortex to blame? However, a disruption ...

The Arctic polar vortex is a circle of strong, cold winds that picks up every winter over the North Pole. The vortex is always present, but it strengthens in the winter due to a redistribution of ...

It's a normal pattern that's stronger in the winter and usually tends to keep the coldest weather bottled up in the Arctic. Previously this winter: Icy air has descended on the US. Is the polar vortex ...

The Polar Vortex's collapse will cause a major Arctic blast from central Canada into the Northeast United States, even if a progressive and dynamic weather pattern will persist across North ...

It’s tough to trudge through a Canadian winter without hearing about the polar vortex, that circulation surrounding the Arctic that occasionally sends bouts of frigid temperatures surging southward.

The Polar Vortex in the upper atmosphere has disintegrated after the intense warming of the stratosphere in mid-March.