Tropical Storm Rafael triggers hurricane warning for Cayman Islands

Storm expected to bring heavy rain to US Gulf coast later this week

Forecasters posted a hurricane warning in the Caribbean on Monday afternoon after a late-season disturbance south of Cuba strengthened into Tropical Storm Rafael and set its sights on the US Gulf coast.

The 17th named storm of an overactive Atlantic hurricane season will bring heavy rain to Jamaica and the Cayman Islands before strengthening to a hurricane and probably hitting Cuba, the Miami-based National Hurricane Center (NHC) said.