Authorities say two people in New Jersey were killed after their vehicle was swept up in flood waters during a storm that moved across the U.S. Northeast overnight.

Footage shows wooden slats from the home on the ground with other debris. The blast took place around the same time heavy rainfall hit the northeast.

Heavy rain inundated the region with flash flooding that stranded vehicles in roadways, closed subway lines and led to the declaration of states of emergency.

Flash floods are occurring across the U.S., from Texas to New Jersey. Here's what you should know as risks escalate.

Heavy rains during the evening brought flooding, road closures and power outages throughout New Jersey, which is under a state of emergency.

Atlantic, Hill Country, Texas, central Florida, southern Arizona, and the Upper Midwest are at risk for more flooding rainfall on Tuesday.

Transit agencies in the New York City area were promising a fairly smooth commute with some lingering delays on Tuesday, the morning after heavy rain pummeled the region, flooding parts of the subway system, inundating major roads and causing long flight delays.

New Jersey is expected to miss the heaviest rainfall in the latest round of thunderstorms on Tuesday, but more flash flooding is possible.