Intense afternoon and evening storms brought flash flooding to the tri-state Monday, with the sudden and heavy downpours leading to impassable roads and dangerous conditions for drivers. Flash flood warnings were issued for different counties in and around New York City starting after 3 p.

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

On Monday at 5:10 p.m. the National Weather Service released an updated flash flood warning in effect until 7 p.m. for Bergen County.

Underground trains are incredibly susceptible to flooding from climate-driven extreme rain and sea level rise. Cities around the world are racing to adapt their transit systems.

Severe flash flooding across the tri-state area on Monday caused subway delays and road closures across the Big Apple and pushed New Jersey to declare a state of emergency. All five boroughs and Nassau County are under a flash flood warning through midnight.

NYC could be in play for another heat wave this week, with the potential for more heavy rain, storms and flash flooding due to the hot and humid conditions.

Watch out for localized heavy downpours on Wednesday afternoon, which could lead to flash flooding, especially in low-lying areas.

The heaviest rainfall and the most widespread thunderstorms are expected to develop from Northern Virginia through southern New England in the afternoon. The Weather Prediction Center has issued a “moderate” (Level 3 out of 4) risk for flash flooding in that corridor through Tuesday morning.