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.

(CNN) — The forecast for the powerful and deadly storm that battered small communities in western Alaska over the weekend was likely made worse by a lack of weather data triggered by the Trump ...

(CNN) — Tropical Storm Melissa is barely moving through the Caribbean, and that’s exactly what makes it so dangerous. The longer it lingers, the more rain it dumps and the more likely it is to rapidly ...