Crews spent Saturday preparing for a weather system that was forecast to become Tropical Storm Imelda late Saturday or early Sunday before approaching the coast of South Carolina as a hurricane early next week.

While Gabrielle has prompted a Hurricane Warning for the Azores in the North Atlantic, two more tropical threats are likely brewing closer to the U.S.

A complex weather dance is underway in the central Atlantic Ocean this week as a pair of developing tropical systems try to get their act together. “There are two tropical waves moving through the Atlantic that may develop this week,

Hurricane Humberto has intensified into a Category 4 storm in the Atlantic, while a separate storm system is targeting the southeastern U.S. The mayor of Charleston, S.C., has declared a state of emergency.

Forecasters say PTC Nine could intensify into a tropical storm over the weekend as it tracks through the Bahamas.

The National Hurricane Center is tracking two invests with high chances of development over the next few days as Hurricane Gabrielle races northeast across the Atlantic toward the Azores.

Alerts for wind are now in place across the east coast of Florida ahead of Future Tropical Storm Imelda. The storm is now expected to slow down and stall near the southeastern U.S. in the week ahead, with threats of flooding rain, surge and winds. We're also watching Hurricane Humberto closer to Bermuda.

The Carnival Sunshine has altered its itinerary for its cruise departing Sunday due to the tropical weather systems in the Atlantic. <a href="

The storm in the Atlantic is forecast to stay out to sea. Another disturbance that could affect the U.S. was upgraded to Tropical Depression Nine.