New Jersey is under a state of emergency and there's a coastal flood advisory for the Jersey Shore as Hurricane Erin causes dangerous conditions.

Hurricane Erin has weakened to a Category 1 storm after lashing North Carolina's Outer Banks with rough waves and coastal flooding, and bringing a threat of dangerous waves and potentially deadly rip currents to the East Coast.

Hurricane Erin downgraded to a post-tropical Friday evening, but some beaches will remain closed to swimming through Saturday as strong rip currents continue to create dangerous conditions.

Hotspots including Rockaway Beach, Coney Island and Manhattan Beach were shuttered Friday as massive waves and strong rip tides threatened suck away swimmers and surfers. State-run Long Island Beaches were closed just for swimming.

Swimming will be prohibited at all New York City beaches Wednesday and Thursday as Hurricane Erin is threatening to bring dangerous rip currents and waves as large as 13 feet to shores all along

The National Hurricane Center warned that roads in the low-lying barrier islands will become impassable, with waves of 15 to 20 feet crashing ashore.

On Thursday, Hurricane Erin was several hundred miles off the coast of North Carolina and pushing storm surge and deadly rip currents toward the shore. Three other systems may form right behind.

New York City closed its beaches to swimming on Wednesday and Thursday, and New York Gov. Kathy Hochul ordered three state beaches on Long Island to

Beaches along the New Jersey coast and in Delaware were closed Tuesday as the powerful storm churned in the Atlantic. New York City announced its beaches would close on Wednesday and Thursday.

Hurricane Erin has triggered a state of emergency in North Carolina, where residents and visitors along the Outer Banks are under evacuation orders.

Strong winds and waves from Hurricane Erin have battered Nantucket and Martha’s Vineyard as dangerous rip currents continue to threaten from the Carolinas to New England.