The National Weather Service says long period swells associated with Cristobal will continue to churn the ocean into Thursday evening.
Lifeguards at area beaches were on high alert over the weekend as the danger of rip currents increased along the south shore of Long Island.
The storm is churning up big waves all along the Atlantic coast as it travels northward.
Police and fire officials have had to make at least two rescues on Sunday. Authorities said a 54-year-old man was rescued in Surf City by a 17-year-old who was surfing nearby.
Authorities said one woman has drowned and several others had to be pulled out of the water because of strong rip currents at a Long Island beach.