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.

A total of 3,040 warnings went out across the U.S. from Jan. 1 to July 15, the highest number since the modern alert system was adopted in 1986.

Police say 60-year-old Lubia Estevez, a food services cashier at Plainfield High School, was one of two people killed during Monday's intense storms.

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.

The heavy downpours wreaked havoc across the city with footage showing commuters overwhelmed by floodwaters in various subway stations.

Hundreds of New Jersey homes were damaged by flooding Monday​, and many families are just beginning the process of filing insurance claims.

Severe flash flooding struck New York City, Westchester County, Staten Island, and Rockland County, Bergen, Essex, Hudson, Passaic