New Jersey Governor Phil Murphy declared a statewide state of emergency late Monday after torrents of rain triggered flash floods from Philadelphia’s northern suburbs to New York City, swamping roads, rail lines and neighborhoods. The National Weather Service measured 6.51 inches of rain in Watchung and 5.34 inches in Mountainside, both in Union and Somerset counties, while Central Park logged more than two inches within an hour—the second-highest hourly reading on record. The deluge overwhelmed New York City’s drainage system, sending water onto subway platforms and temporarily halting several lines; the Metropolitan Transportation Authority said full service resumed before the Tuesday morning commute. Authorities confirmed two deaths in Plainfield, New Jersey, after a vehicle was swept into Cedar Brook during the height of the storm. In nearby North Plainfield, a house exploded amid receding floodwaters, but no injuries were reported. Emergency crews conducted multiple water rescues across New Jersey and parts of Pennsylvania, and some roads remained closed as inspections continued. Travel disruptions rippled through the region. FlightAware counted 159 cancellations at Newark Liberty International Airport and dozens of delays elsewhere, while sections of major highways required emergency repairs. Touring damage in Berkeley Heights, Murphy urged residents to stay alert, warning that hot, humid conditions could produce additional intense storms this week.