Winter weather is aiming at Delaware again. Where the snow will hit is the biggest question. Here's what we know.

Louisiana is forecasted to have a potential winter storm bringing a surge of cold air late Sunday into early next week.

Temperatures plunged into the teens and single digits in some spots, and the snow-dusted winds are driving the wind chill ...

The National Weather Service in Mount Holly, New Jersey, is calling for 1 to 3 inches of snow throughout the state.

However, a deep freeze, thanks to the polar vortex dipping down from Siberia, is about to bring even harsher arctic blast to nearly 300 million Americans starting this weekend. Maps show where and ...

A recent study explains how warmer temperatures at the top of the planet destabilize the jet stream and allow colder air to ...

This will be due to a polar vortex, an area of strong winds that encircle the Arctic and typically keeps the coldest air locked near the Pole, according to the FOX Forecast Center. This weekend ...

The mere mention of the term "polar vortex" can set your head spinning (and maybe eyes rolling). It’s got to be clickbait, right? Or maybe someone dreamed up the name for views? Is it a storm?

The polar vortex is a low-pressure system of cold air that swirls above Earth’s poles. There’s one over the South Pole in ...