Nearly 155,000 utility customers are without power in Puerto Rico as Category 3 Hurricane Erin batters the Caribbean, bringing heavy rainfall and gusty winds to Puerto Rico and the Virgin Islands.“The adverse weather has caused multiple interruptions across the island,

Hurricane Erin weakened to a Category 3 storm with maximum sustained winds of 125 mph while its outer bands pounded the Virgin Islands and Puerto Rico with gusty winds and heavy rains early Sunday.

The outer bands of powerful Hurricane Erin lashed Puerto Rico, and the storm is approaching the Bahamas next. What can the mainland U.S. expect?