On March 9, the polar vortex wobbled and then snapped back the other way as mighty winds, suddenly shifting from the west to the east - something that typically happens once a year - usually in the ...

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

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

A "major disruption" has recently rocked the Arctic polar vortex, causing it to weaken and reverse direction from ...

Teleconnections in our atmosphere allow conditions in one part of the world to affect weather patterns thousands of kilometres away ...