Hurricane Erin has strengthened to a Category 4 hurricane and is expected to create deadly sea conditions like powerful waves and rip currents along the eastern coast of the United States.Heavy rains from the storm have already started

Thousands of people are without power in Puerto Rico as Hurricane Erin batters the Caribbean. The storm is expected to bring rough conditions along the East Coast. CBS News New York's Ali Bauman reports.

Hurricane Erin has strengthened to a Category 4 hurricane as it threatens to bring life-threatening surf and rip currents to the eastern coast of the United States. The rains caused by the storm are already beginning to hit the south-eastern Bahamas, and the Turk and Caicos Islands, where a tropical storm warning is in effect.