Hurricane Erin: No direct hit forecast on U.S., but flood risks prompt evacuations

A map shows the expected path of tropical-storm-force winds from Hurricane Erin this week. The storm is expected to bring flooding to parts of the Outer Banks on North Carolina

Parts of North Carolina's Outer Banks are under mandatory evacuation orders, as the National Hurricane Center warns that Hurricane Erin could bring tall waves topping 15 to 20 feet.