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

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.

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.

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While FEMA has improved the accuracy and accessibility of the maps over time with better data, digital tools and community input, the maps still don't capture everything.