Cruise lines are changing Caribbean itineraries in an effort to avoid Tropical Storm Helene. The storm is expected to intensify in the coming days, approaching the northeastern Gulf Coast as a “major hurricane” on Thursday,

Two major weather systems are bringing heavy rain, high winds and more to Mexico’s southern Pacific coast on one side and the Caribbean on the other.

Tropical Storm Helene formed in the western Caribbean on Tuesday is expected to become a major hurricane in the Gulf of Mexico.