Flooding caused delays on multiple New York City subway lines Monday as torrential rain pummeled the Tri-State Area.

The region was hit with heavy rain Monday evening, resulting in flash floods that not only impacted roads and air travel, but also the transit system.

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.

Storms prompted flash flood warnings across the New York City metropolitan area Monday night, with photos showing severe flooding across the city and in parts of New York state and New Jersey.

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.

Roads and streets, meanwhile, are likely to flood during the downpour, said the Office of Emergency Management’s advisory. Flooded roads could spell trouble for the city’s bus riders and drivers. The city warned motorists not to drive through flooded roads.

The threat could increase in the coming years. Surprising new report reveals New York City's most pressing public health threat: 'We're vulnerable' first appeared on The Cool Down.