Meteorologists warn that a stretched polar vortex could bring severe winter weather to much of the United States.

With the Northern Hemisphere well into the winter months, it may seem like temperatures are cold enough already. However, a deep freeze, thanks to the polar vortex dipping down from Siberia, is ...

Jupiter and Saturn's different polar storms reveal clues about planet interiors: Saturn has harder bottom than Jupiter.

The big freeze resulting from an Arctic weather phenomenon known as the polar vortex has affected 187 million Americans — more than half the country's population. It was loosening its grip Wednesday, ...

Environment Canada has issued weather warnings for most of Canada over a 'high or moderate impact level' cold blast that is ...

Watch as a massive bowl of Arctic air is set to bring extreme, potentially record-breaking cold temperatures to parts of the ...

It's only early November, but here comes the “polar express,” weeks ahead of schedule. A cold blast more typical of early December will stretch from the Northeast all the way down the Atlantic Coast ...

The Great Lakes lose their shield as an Arctic blast targets Ontario with the coldest weather of the year ...

The phrase “historic polar vortex” evokes a country locked in ice from the Great Lakes to the Gulf, but the most reliable records show a patchwork of extreme outbreaks rather than a single, weeks-long ...

The below freezing temperatures that afflicted the country during the polar vortex posed a challenge for everyone in their routine activities, including the criminal kind. But is there a correlation ...