Why meteorologists are so concerned about Tropical Storm Melissa when it becomes a hurricane near Jamaica, Haiti, the Cayman Islands, and Cuba.

Melissa formed in the Caribbean, making it the 13th named storm of the 2025 Atlantic hurricane season.

Tropical Storm Melissa has begun churning in the Caribbean and is moving toward Haiti. At 2 p.m., Melissa was about 300 miles south of Port-au-Prince.