As the U.S. prepares to take on another bout of cold weather, the term "polar vortex" is getting thrown around. But what is ...

"A sun dog is similar to a rainbow and is more common," the Almanac stated. "Sometimes, they look like bright rainbows or ...

It's so cold this week your eyes may appear to play tricks on you, looking like snow is falling even as blue skies are above.

Australia is experiencing a smorgasbord of wild weather in the lead-up to Christmas, featuring extreme heat, humidity, severe thunderstorms, and tropical storms all on the cards. The locality of ...