Tropical Storm Rafael formed Monday in the Caribbean and will bring heavy rain to Jamaica and the Cayman Islands before strengthening into a hurricane and likely hitting Cuba, forecasters said. Later in the week, it also is expected to bring heavy rainfall to Florida and portions of the US Southeast, according to the US National Hurricane Centre in Miami. A tropical storm warning was in effect for Jamaica, and a hurricane watch was in effect for the Cayman Islands and for parts of Cuba including the provinces of Pinar del Rio, Artemisa, La Habana, Mayabeque, Matanzas, and the Isle of Youth. A tropical storm watch was issued for Villa Clara, Cienfuegos, Sancti Spiritus, Ciego de Avila, Camaguey, and Las Tunas in Cuba. A tropical storm watch also was issued for the lower and middle Florida Keys from Key West to west of the Channel 5 Bridge, and for the Dry Tortugas. The storm was located about 245 kilometres south of Kingston, Jamaica. It had maximum sustained winds of 75 kph while .