Colorado could see more frequent and intense temperature swings, in part due to climate change. DENVER — Colorado is no ...

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

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

Co-author Jeff Knight ... An intense stratospheric polar vortex can now be recognised as a warning to forecasters of increased risks of damaging storms. 'This was likely seen in the most recent ...

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.

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 ...

Co-author Jeff Knight ... “An intense stratospheric polar vortex can now be recognised as a warning to forecasters of increased risks of damaging storms. This was likely seen in the most ...

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 ...