Hurricane Erin is expected to impact the Outer Banks in North Carolina, sending massive waves crashing into the islands.

A tropical storm watch has been issued and mandatory evacuations are underway along the coast of North Carolina, as Hurricane Erin approaches. Coastal flooding and massive waves could leave roads impassable for days.

Though Hurricane Erin is not forecast to make landfall on the U.S., the storm’s rapid intensification has prompted increased measures in North Carolina.