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

DON’T MISS: This is what La Niña's demise could mean for Canada The polar vortex is an ever-present circulation of upper-level winds spiralling around the Arctic, strengthening in the winter ...

DON’T MISS: This is what La Niña's demise could mean for Canada The polar vortex is an ever-present circulation of upper-level winds spiralling around the Arctic, strengthening in the winter and ...

Brits basking in sunshine are set for a sudden plummeting of temperatures with a return of snow in an Arctic blast. Weather forecasters are predicting more balmy conditions today and for the start ...

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 ...