Several days with temperatures of 10-20 degrees below the historical average could be dangerous to plants and ruin outdoor ...

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

The cause of the week-long deep freeze? A polar vortex collapse. Now, meteorologists are calling for another collapse in the middle of March, one that could plunge the U.S., Canada, and parts of ...

A sudden stratospheric warming event reversed the winds that make up the northern polar vortex on March 9. A new animation shows the vortex also moved away from the Arctic towards Europe.

In summary, a strong polar vortex usually corresponds with a strong and stable jet stream, while a weak polar vortex leads to a weaker and wavier jet stream. The Met Office explains ...

Researchers from the University of Leeds have found there was an extremely strong stratospheric polar vortex (SPV) – a large spinning mass of cold air in the stratosphere around 15 miles above ...

BISMARCK, N.D. (AP) — Harsh cold descended on the nation’s midsection Monday as a polar vortex gripped the Rockies ... La Nina exits after three weak months, leaving Earth in neutral climate ...

A pinwheeling section of the polar vortex is clearing customs at the Canadian border, heading for the northern Plains, Midwest, Mid-Atlantic and Northeast U.S. For millions, this may be the ...

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 ...

A significant disruption to the polar vortex over far Northern Canada will keep the pattern’s influence locked in our neck of the woods like a houseguest overstaying their welcome.

"The large polar vortex disruption from the second week of March is playing a key role in next week’s eastern US cold snap," meteorologist Judah Cohen of Atmospheric and Environmental Research told ...

Don't put away those winter coats just yet. An April cold snap is forecast for much of the eastern half of the U.S. early next week, forecasters said, with freezes likely across portions of the ...