New York is bracing for the coldest air of the winter this weekend, with snow. Learn how the polar vortex is involved.

The polar vortex is a huge area of cold air high up in the atmosphere that usually spins over the North Pole. Its position ...

Air quality varies based on the type of pollutants in the cycle and can have dramatic ramifications for those breathing nearby.

All lanes of I-22/U.S. 78 from Red Banks (Exit 21) to the Tennessee State Line remain closed. Other problematic areas include ...

Add Yahoo as a preferred source to see more of our stories on Google. A person uses a snowblower to remove snow from their driveway in Winthrop, Mass., on Jan. 26. (Joseph Prezioso/AFP via Getty ...

At least seven people have died, and hundreds of thousands of homes are without power, as a winter storm hits the US from north to south. The storm has brought snow, sleet and freezing rain to the ...

Much of north Georgia is covered in ice Sunday morning as a winter storm moved across the state. Follow for updates.

If you’re still dreaming of a white Christmas, it’s past time to lower your expectations. According to the latest holiday forecast, a warm air mass expanding over the south-central U.S. will bring ...

When we think of Christmas, we often picture frigid temperatures and snow — even in warmer states that don’t typically see much of either. But this year, it truly is beginning to look a lot like ...

(NEXSTAR) – Cases of the flu continue to mount, with health officials recently recording the first pediatric flu-related deaths of the season, but some states are seeing much higher activity than ...

Snow season has gotten off to a fast start across swaths of the northern United States this year. Fueled in part by an unusually early disruption to the polar vortex — which is now easing — 18 states ...