(9 p.m. EDT) -- Tropical Storm Dolly formed in the Western Caribbean today, and maximum sustained winds are currently about 45 miles per hour. The formation of this storm, the fourth of the Atlantic season, comes just two days after Tropical Storm Cristobal spawned off the southeast U.S. coast.
A tropical storm warning has been issued for Mexico's Yucatan Peninsula; Belize is under a tropical storm watch. Dolly is currently about 125 miles southeast of Cozumel. Its center is expected to pass over the Yucatan Peninsula this evening -- and move over the Gulf of Mexico tomorrow. Belize, cities along Mexico's east coast and even the Cayman Islands are anticipating heavy rainfall.
At this point, cruise lines with ships in the area -- such as Royal Caribbean and Carnival -- have not announced any itinerary changes due to weather conditions.