The polar vortex flooding into the US is set to deliver the coldest air on Earth to the northern half of the country, threatening millions with more dangerous winter conditions. Both snow and bitterly ...

A polar vortex may be headed our way later this month. The phenomenon is a low-pressure buildup of cold air that swirls around the polar regions of the Earth. As it expands in the winter, it can send ...

Add Yahoo as a preferred source to see more of our stories on Google. Meteorologists don't have the specific forecast ready yet, but there is a growing consensus that December will be a frigid one for ...

Harsh temperatures are coming soon. Midwest weather causes thousands of Thanksgiving flight delays and travel disruptions. Meteorologists predict heavy snow, severe cold, and possible East Coast ...

Meteorologists don't have the specific forecast ready yet, but there is a growing consensus that December will be a frigid one for parts of the United States. The National Weather Service's Climate ...

Meteorologists don't have the specific forecast ready yet, but there is a growing consensus that December will be a frigid one for parts of the United States, including the Midwest. The National ...