A flood watch has also been issued in Washington, D.C., while the Midwest also has the potential for flooding.

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.

Waters rushed into subway stations, making for hellish commutes, and the flash floods killed two people in New Jersey and caused a house to explode in New Jersey. Climate experts expect flooding to worsen and threaten already-struggling infrastructure throughout the region.

Several historic and deadly flash flooding events have occurred in the U.S. just within the month of July alone. Experts talk about what factors are increasing the risks.

New York is cleaning up and trying to dry out after Monday night's torrential rains caused flash flooding and damage.

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.

Heavy rain swept across parts of the Northeast on Monday night, inundating sections of New York and New Jersey with flash flooding that stranded vehicles in roadways and closed subway lines.

New Jersey is under a state of emergency after a flash flood caused at least two deaths in Plainfield and damage across Union County.