A rare and abrupt disruption in the Arctic polar vortex is expected to impact spring temperatures across Europe and parts of ...

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

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. A major ...

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

A major alteration in the jet stream is expected to send winter-like conditions back into much of the Northeast. A polar vortex shift — normally responsible for bottling up the coldest air — has ...

Sustained warm weather has been elusive this spring. When will we feel a change? Lee Goldberg explain in the latest edition of "Weather or Not." ...

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 word “supercell” may sound like hype, but they are real thunderstorms with rotating updrafts that can have serious ...