Hurricane Gustav is expected to make landfall later today in Haiti and may hit the Gulf of Mexico, home to more than a fifth of U.S. oil production.

Gustav's powerful winds strengthened to 90 miles (145 kilometers) per hour, the U.S. National Hurricane Center said in an advisory just before 8 a.m. local Miami time. The system, located 75 miles south-southeast of the Haitian capital, Port-au-Prince, was heading northwest at 9 mph.

Chances are within a week, the hurricane will be crashing into the Gulf of Mexico.

Gustav will probably intensify into a Category 2 hurricane later today with winds of at least 96 mph and may develop into a Category 3 or 4 by the end of the week.