Heavy rain led to coastal flooding Thursday along the southern shore of Nassau County on New York's Long Island, and officials are preparing for another round of severe weather, a local official said.

Some residents experienced significant flooding in their basements along with street flooding, and one house in East Rockaway was evacuated, according to County Executive Bruce Blakeman.

Flooding also shut down train service on the Long Island Rail Road near Long Beach, transportation officials told CNN. Service remained down Friday morning and trains won't get back on track until the water recedes.

High winds downed some trees and caused power outages in the county Thursday, and there may be more if wind gusts surpass 50 miles per hour, Blakeman said at a news conference.

The county's public works department has cleaned drains and is pumping water out of flooded areas ahead of a second storm, which is expected to arrive this afternoon, according to Blakeman. It will be accompanied by a cold snap.

Police reported about 52 car crashes and 104 calls of people trapped in their cars due to flooding Thursday night, which was "about normal during a storm," Nassau County Police Commissioner Patrick Ryder said. No one was hurt or killed in the incidents. 

“We’re preparing for the second storm, which will probably be more dangerous than this one because of the extreme cold and the fact that the winds could gust up to 50 miles an hour, which makes it very dangerous to go outside,” Blakeman said.

The county executive asked people to stay home or at least stay local. He addressed people’s last-minute holiday shopping needs, saying, “tomorrow will be a much better day to go shopping.”