Another polar vortex disruption will stretch Arctic air across the top of the globe, with expected frigid conditions in the nation's capital severe enough to force Donald Trump's second ...

While much of the Arctic basks in spring-like warmth, Ontario is gripped by an unseasonable chill developing this ... with a stubborn trough allowing Arctic air to spill south.

A blast of Arctic air will help usher in frigid temperatures, gusty winds and multiple rounds of snowfall in parts of Ontario this week, with a potential of 15-25 cm to accumulate for some locales.

“It will feel like winter for many across the Midwest and Northeast at the start of the week as Arctic air surges south from ... upper 40s on Wednesday, wind chill could make for “feels ...

While much of the Arctic basks in spring-like warmth, Ontario is gripped by an unseasonable chill developing this week ... with a stubborn trough allowing Arctic air to spill south. This dramatic ...