Hurricane Irma has weakened to a Category 4 storm Friday as it batters the Caribbean on a path toward Florida but remains a powerful hurricane.
The U.S. National Hurricane Center says Irma's maxmimum sustained winds have decreased to near 155 mph. The hurricane center says some fluctuations in strength are likely over the next day or two but Irma is expected to stay a Category 4 storm.
Just before 5 a.m. EDT Friday, the hurricane was centered about 55 miles northwest of Great Inaugua Island and 495 miles southeast of Miami.
It's expected to make landfall in Florida on Sunday.
