Hurricane Erin strengthened into a fearsome Category 5 hurricane with sustained winds of 160 mph for much of the day on Aug. 16 as it traveled west just north of the Virgin Islands, according to the National Hurricane Center.

Erin has become the first hurricane of the Atlantic season, with several areas already on alert for heavy rain while strong waves and rip currents are possible along the East Coast of the United States as early as next week.