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 ...

The decision by the Trump administration to defer maintenance of the Joint Polar Satellite System threatens to degrade the ...

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

This year, the Arctic polar vortex has seen the second-earliest final stratospheric warming of the season since 1958.

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 plans.