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.

Other Counties: Earlier warnings covered Bergen, Essex, Hudson, Passaic, and Union counties until 8:15 PM EDT, impacting Newark, Elizabeth, and Plainfield. Hunterdon, Somerset, and Middlesex counties faced warnings until 10:30 PM EDT, including Somerville and Franklin Park.

Two people were killed in New Jersey following flash flooding in the northeastern United States that caused travel chaos, authorities said Tuesday, as the region braced for more heavy rain.

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.