Hurricane Erin is marching north and is set to bring life-threatening rip currents, destructive waves, coastal flooding and possibly beach erosion to much of the East Coast. The conditions will last through Thursday before improving later on Friday and into Saturday.

More than 33 million Americans were under coastal flood advisories on Aug 20 as Hurricane Erin head north toward the U.S. mainland.

Hurricane Erin was nearing North Carolina's coast Wednesday, threatening huge waves and flooding as the strengthening Category 2 storm triggered mandatory evacuation orders despite its offshore path.

A flood advisory was issued by the NWS Blacksburg VA on Wednesday at 2:58 p.m. in effect until 6 p.m. The advisory is for Alleghany, Ashe, Watauga and Wilkes counties.

"Extreme beach and coastal damage is likely along the oceanside, resulting in a significant threat to life and property," weather forecasters said about a Hurricane Erin impact on the OBX and other North Carolina coastal areas.

A flood warning is in place from the North Carolina state line to Conway due to elevated water levels in the Waccamaw River. Horry County Emergency Management officials said Saturday the Waccamaw appears to have crested in the Longs area and continues to fall,