New York City remains under a heat advisory Thursday, as high temperatures hit the 90s and feel more like triple digits. The National Weather Service allowed Wednesday's heat advisory to remain in effect until 10 p.m. Thursday. It's another First Alert Weather Day as we monitor the dangerous heat and humidity around the area.

Another day of scattered thunderstorms is expected for the tri-state area Thursday, though the threat is diminished from a day ago, when an isolated cell turned deadly in New Jersey. Any storms that may develop are not expected to be as damaging as the ones that triggered flash flooding across the New York City metro earlier this week,

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.

A flash flood warning was in effect in New York City until 9:45 p.m., and New Jersey Gov. Phil Murphy declared a state of emergency. Middlesex, Morris and Somerset counties remained under a flood warning until 7:15 a.m. Tuesday.

Temperatures and humidity levels will dip compared to the past few days, though there are chances for showers this weekend.

At 9:57 a.m. on Monday, the National Weather Service reported an air quality alert in effect until 10 p.m. for Oneida, Seneca, Cayuga, Onondaga, Tompkins, Madison and Cortland counties.

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.

NYC faces hazardous heat conditions with high temperatures and health risks, as per National Weather Service warnings.

On Monday at 10:07 a.m. an air quality alert was reported by the National Weather Service in effect until Tuesday at midnight for much of Upstate New York, including the Syracuse area.