The lingering effects of Tropical Storm Fay manifested Saturday in swimming advisories at some of the city’s public beaches and reports of downed trees and power outages in the region.

The city’s Department of Health posted advisories Saturday warning against swimming or wading at Manhattan Beach in south Brooklyn and three Staten Island beaches: Cedar Grove Beach, Midland Beach and South Beach.

The advisories warn the water quality at these beaches may have “elevated levels of bacteria (that) may cause illnesses such as vomiting, diarrhea, respiratory illness or infections. Children, pregnant women, the elderly and the chronically ill are at higher risk.” There are also a slew of advisories at beaches across Long Island.

The storm brought gusty winds -- up to 43 mph at LaGuardia Airport as recorded by the National Weather Service.

Parts of the city recorded nearly 3 inches of rain Friday.

Power outages and downed trees have been reported in parts of Queens, northern New Jersey and Long Island.

Video surfaced of dramatic waterfalls and floods at subway stations. On Friday, Governor Andrew Cuomo expressed confidence that the state would handle the storm.

“We have the emergency operation all set up. Emergency operation center is working. We have people all throughout the state. We’ve deployed equipment and we’re prepared and we’ll see what Mother Nature brings for us and then we’ll handle it,” he said on WAMC.

In the case of water pouring down the walls of the Court Square station in Long Island City, the MTA tweeted “No water is coming into the station now. This was a clogged vent issue between the street and the station that is being addressed. A vacuum truck is en route.”