We are watching and area for potential tropical activity, which could develop in the Caribbean this week week. There is still a lot of uncertainty, but here’s what we know now.

Winter is just around the corner and could come on strong for parts of the U.S. With a La Niña underway, we will break down how this could impact your winter weather.

Severe storms will threaten outdoor plans across parts of the mid-Atlantic and Northeast on Sunday. Damaging winds, large hail and the possibility of a brief tornado will be possible. Heavy rain could lead to the threat of flash flooding in some locations. Rain will linger into the Northeast and New England on Monday as well. Watch this video for the latest update.

A young whimbrel rides hurricane winds on its first migratory flight and makes it in record time. Watch to see how scientists tracked this juvenile bird and the explosive flight speeds.

Among the top beaches in the United States for shark attacks, only one other state broke into the top 5.