The snowstorm triggered crashes and pileups in multiple states. Here's the latest.

We’re about to finish another year. Will you be cold and clear or dreary and wet as you sing Auld Lang Syne?

As ash and lava rocketed into the sky above Italy’s Mount Etna, it was business as usual on the snowy slopes below. Remarkable video shows a lone skier gliding down the mountain during the latest eruptions that caused Italy’s National Institute of Geophysics and Volcanology to issue its highest aviation alert.

Shoppers at a mall in Johannesburg, South Africa, probably thought they were safe from the heavy rain outside, but then water on the floor was the first signal that something awful was in store. See the video as a stunned crowd watched the ceiling collapse.

During the winter, you’ll often hear meteorologists use the term “wind chill.” But what exactly does that mean? Meteorologist Caitlin Kaiser breaks down the difference between air temperature and wind chill as well as what dangers it can pose to you.