Jet Stream Connection: A disrupted polar vortex often affects the polar jet stream, making it wobble and allowing cold air to push farther south while warm air moves north in other regions ...

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

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

"The large polar vortex disruption from the second week of ... with an inch or less in northeast Ohio. Weather service forecast offices across the central U.S. are already warning about the ...

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.

BISMARCK, N.D. (AP) — Harsh cold descended on the nation’s midsection Monday as a polar vortex gripped the Rockies ... Virginia and Ohio. In Nebraska, where much of the state was under ...

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 ...

"The large polar vortex disruption from the second week of ... with an inch or less in northeast Ohio. Weather service forecast offices across the central U.S. are already warning about the ...

"The large polar vortex disruption from the second week of March is playing ... with an inch or less in northeast Ohio. Weather service forecast offices across the central U.S. are already warning ...