HAVANA (Reuters) -Tropical Storm Rafael gained steam late on Monday as it churned northward toward Cuba, which is still struggling to recover from a nationwide blackout and hurricane two weeks ago.

Tropical Storm Rafael formed Monday afternoon in the Caribbean Sea, where it is expected to cross Jamaica, the Grand Cayman Islands, and Cuba, before entering the Gulf of Mexico this week. It is forecast to strengthen into a hurricane before weakening back down to a tropical storm in the Gulf.

Tropical Storm Rafael is expected to strengthen into a hurricane before making landfall in Cuba Wednesday, according to the National Hurricane Center.