Tropical Storm Ingrid has become a category 1 hurricane, packing winds of up to 120 kilometres per hour off the Gulf coast of Mexico.
Ingrid has already brought lashing rains eastern parts of Mexico, causing floods and mudslides. Thousands of people have been evacuated.
The National Hurricane Centre says the twister could grow even stronger before it hits land, expected to happen by early Monday.
State oil company Pemex has said its installations in the Gulf of Mexico are operating normally.
Off Mexico’s Pacific coast, tropical storm Manuel has also been getting stronger. Forecasters said it too could become a hurricane.