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.

New Yorkers in basement apartments were told to be ready to leave and New Jersey’s governor declared a state of emergency after heavy rains in the northeast caused flash flooding, officials said

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

The National Weather Service has issued flash flood watches for parts of 17 New Jersey counties on Monday to start a stormy week.

A powerful round of thunderstorms is expected to hit New Jersey and eastern Pennsylvania beginning Monday afternoon, July 14, with the National Weather Service warning of flash flooding, possible power outages,