An arctic blast will send temperatures across the United States plummeting as bitterly cold air that originated in Siberia will arrive from Canada by week’s end, bringing with it dangerously cold wind ...

The colder it gets, the faster they fly. Commercial flights bound for Europe have been taking off late from the States but ...

As the Arctic rapidly warms, the temperature difference between the polar region and lower latitudes decreases, which weakens ...

Millions of Canadians won't be in the deep freeze to kick off February as a forthcoming pattern change will reconfigure air ...

The jet stream typically acts as a barrier to keep the polar vortex contained near the Arctic, but at times, some of the vortex can break off or move south, bringing unusually cold weather into ...

Extreme cold and snow smacked the Gulf Coast states this week, but the polar vortex may not be to blame.

When Virgin Atlantic Flight 10 took off from New York’s JFK International Airport this week, it was running 1 hour 13 minutes ...

The dip of Arctic air into the Midwest expanded ice coverage across all 5 Great Lakes, some seeing greater increases than ...

Commercial flights bound for Europe have been taking off late from the States but arriving on time or early, thanks to a more powerful jet stream, strengthened by the arctic air mass that settled ...