Louisiana is forecasted to have a potential winter storm bringing a surge of cold air late Sunday into early next week. Winter has Metro Detroit in a tight grip today, with bitter cold and snow dominating the forecast. And there's even more winter weather in the forecast this week.

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

The National Weather Service in Mount Holly, New Jersey, is calling for 1 to 3 inches of snow throughout the state. AccuWeather.com's latest update has the winter storm moving through the region quickly on Saturday and dropping 1-3 inches on the area with the most snow falling in central and southern Delaware.

Temperatures plunged into the teens and single digits in some spots, and the snow-dusted winds are driving the wind chill below zero. The polar vortex, a swirling mass of Arctic air typically contained over the North Pole, has pushed south, driving bone-chilling temperatures into the eastern United States.

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 ...

One of the key players in these dramatic shifts is something called the polar vortex. The polar vortex is a massive area of cold air located high in the atmosphere, typically spinning over the ...

A lobe of the polar vortex, a stormy ring that typically keeps the coldest air locked up near the North Pole, will dip southward into the United States this weekend into next week. Polar air ...

Most of the US will enjoy milder temperatures on Thursday, but the warmup will be brief as a polar vortex will send temperatures tumbling below freezing for most of the nation starting this ...

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 Antarctica – but for this story, we’ll be focusing on the one above the North Pole. Over the North Pole, the wind flows counterclockwise in the stratosphere around 16 to 50 kilometers (10-30 miles) high.

Shoppers gather last-minute snow essentials, from ice melt to comfort foods, ahead of the winter storm on Sunday. TikTok has been officially shut down in the U.S. The future of the app in the U.S. is up to incoming President-elect Trump's administration.

Temperatures are projected to remain frigid in Hampton Roads, with highs only reaching the 20s on both Tuesday and Wednesday.

A dangerous and potentially life-threatening stretch of cold weather has much of the U.S. on alert as a lobe of the polar vortex invades the nation and sends temperatures tumbling to levels not seen in years.