A Caesars Palace casino in the heart of Times Square. A sprawling gambling hall along Coney Island’s iconic boardwalk. A Hard Rock casino complex next to the home stadium of baseball’s New York Mets.

With a heat advisory in effect for much of the day, New Yorkers should consider limiting any strenuous activity outside. The National Weather Service (NWS) warns that these conditions lead to an increased risk of heat-related illnesses, like heat stroke.

The subway system, which is more than a century old, is relied on by millions of passengers every day and weaves the city into a cohesive network.

A heat advisory is in effect for the New York City area Wednesday and Thursday, with feels-like temperatures expected to exceed 100 degrees as more storms threaten the forecast. Air quality is also a concern for vulnerable groups.

Numerous flash floods had been reported across New York, New Jersey and Connecticut, closing roads and highways, submerging cars, and stranding motorists, according to the National Weather Service. Metro-North reported suspensions of service on part of the Harlem line, and some delays on the New Haven line, as well, which has since been reopened.

Two people died in New Jersey after their car was swept into a brook. Public transit was largely running normally a day after the subway system flooded in New York. Officials warned aging infrastructure remained susceptible to extreme weather.

Historic flash floods have paralyzed the New York region after a slow-moving storm unleashed torrential rain Monday night. At least two people were killed in New Jersey as raging waters swept their car into a brook amid the downpour.