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.

The National Weather Service released a flood warning at 9:51 p.m. on Monday in effect until Tuesday at 1 a.m. for Essex, Passaic and Union counties.

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

Statewide, rain totals ranged from .11 inches in Hamilton, Mercer County to 6.64 inches in Clark and 6.24 inches in Westfield.

The National Weather Service issued a flood warning at 9:07 p.m. on Monday in effect until Tuesday at 12:15 a.m. for Bergen County.

Two people are killed as their vehicle is swept up in floodwaters in New Jersey while in New York, the rains flood the subway system.

The tornado warnings in Atlantic and Ocean counties in New Jersey are no longer in effect on Wednesday night. Earlier Wednesday, a tornado warning in New Castle County, Delaware, expired at around 9:15 p.m. A severe thunderstorm watch was in effect across much of the Philadelphia region for Wednesday evening.

Forecasters say some thunderstorm cells have the potential to dump as much as 2 to 3 inches of rain in one hour, posing a risk of rapid flooding.