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.

Parts of New York City and Northern New Jersey were inundated on Monday night as widespread thunderstorms moved through.

Severe flash flooding across the tri-state area on Monday caused subway delays and road closures across the Big Apple and pushed New Jersey to declare a state of emergency. All five boroughs and Nassau County are under a flash flood warning through midnight.

Storms prompted flash flood warnings across the New York City metropolitan area Monday night, with photos showing severe flooding across the city and in parts of New York state and New Jersey.

Flash flood warnings were issued by the National Weather service Monday night as heavy storms rolled into the area. Flood warnings were issued for Morris, Warren, Bergen, Essex, Hunterdon, Hudson, Passaic, Middlesex, Somerset and Union Counties, according to the National Weather Service.

Severe thunderstorms and flash flooding struck Plainfield and Scotch Plains, New Jersey, causing widespread disruption. The National Weather Service issued a warning at 7:31 PM EDT, due to thunderstorms producing 1–2 inches of rain, with an additional 1–2 inches expected.