(CNN) — Tropical Storm Melissa is crawling through the Caribbean Sea, threatening to unleash life-threatening flooding and mudslides across parts of the region later this week. It’s proof this year’s ...

Over the next 10 days, scientists say, changes in the stratosphere will upend weather patterns and set the stage for a cold, snowy December across parts of the Northern Hemisphere.

Thanksgiving is a week away and the weather has the potential to disrupt travel for the tens of millions visiting family and friends.

(CNN) — Record cold temperatures have pushed as far south as Florida this morning as wind-whipped snow continues to pile up in the eastern Great Lakes from a brief bout of Arctic air gripping the ...