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

When the polar vortex begins to wobble and allows arctic air to spill south into northern Illinois in January, we usually end ...

The polar vortex is a gigantic, circular area of cold air high up in the atmosphere that typically spins over the North Pole (as its name suggests). It's a normal pattern that's stronger in the winter ...

A sudden stratospheric warming event reversed the winds that make up the northern polar vortex on March 9. A new animation ...

Warm conditions across much of Europe are forecast to give way to periods of unseasonably cool temperatures and stormy ...

The polar vortex in the stratosphere broke up, which caused the movement of cold Arctic air towards southern latitudes, ...

Cold weather is expected to blanket New York through mid-April, bringing the chance of freezing temperatures, snowfall, as ...

The Old Farmers Almanac has predicted the last frost dates across the U.S. for 2025 -- and some in the Chicago area might be ...

"The large polar vortex disruption from the second week ... the summerlike warmth and torrential rain will be replaced with cold, mostly quiet weather. "A big cool down is on the way especially ...

"The large polar vortex disruption from the second week ... the summerlike warmth and torrential rain will be replaced with cold, mostly quiet weather. "A big cool down is on the way especially ...