Irma strengthens into Category 5 hurricane, nears Caribbean, U.S.

SAN JUAN, Puerto Rico — Hurricane Irma grew into a dangerous Category 5 storm, the most powerful seen in the Atlantic in over a decade, and roared toward islands in the northeast Caribbean Tuesday on a path that could eventually take it to the United States.The U.S. National Hurricane Center said Irma was a "potentially catastrophic" storm with maximum sustained winds of 180 mph as it bore down on the twin-island nation of Antigua and Barbuda. It was centered about 225 miles east of Antigu