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

Another day of pop-up thunderstorms is expected for the tri-state area Thursday, this one potentially more widespread than the isolated cell that turned deadly in New Jersey a day ago. Any storms that do develop,

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.

Heavy rainfall flooded portions of New York and New Jersey, with videos on social media showing a subway station inundated with floodwaters.

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.

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

Another round of showers and thunderstorms is slowly moving across the Mid-Atlantic Tuesday evening, after intense rain set off dangerous flash flooding from Virginia to New York on Monday, leaving at least two dead and prompting dozens of rescues as water overwhelmed roads and subways.

The weather service said there's a "marginal" risk of flooding in portions of Nassau and western Suffolk, but nothing what's expected to the west and north of LI.