Tropical storm conditions are expected in southern Florida later today and spreading northward through Thursday.

Helene is strengthening as it moves toward the U.S. Gulf Coast. It is expected to become a hurricane today and will hit ...

Forecasters predict Hurricane Helene could reach Category 4 strength in the Gulf of Mexico, with sustained winds reaching up to 250 kilometres per hour.

"In a hurricane, spiraling winds draw moist air toward the center, fueling the towering thunderstorms that surround it," NASA explains, for example. "As the air continues to warm due to climate change ...

Hurricane Helene is rapidly strengthening in the Caribbean Sea and expected to make landfall in Florida and Georgia on ...