Ground stops in Newark, New Jersey, New York, and Washington, D.C. caused more than 2,000 cancellations and 10,000 delays nationwide.

At Philadelphia International Airport, more than 42 flights have been canceled and another 90 have been delayed as of 11 a.m. on Tuesday, according to FlightAware.

NYC subway flooding

In New York City, some subway service was suspended while other lines were running with severe delays due to flooding, according to the Metropolitan Transportation Authority. New York’s emergency services agency wrote on the social platform X that parts of the city and mid-Hudson were getting hit with flash floods.

Video posted on social media appears to show water flooding down into a Manhattan subway station, submerging the platform, while passengers inside a train watch. Another photo appears to show passengers standing on a train’s seats to avoid the water beginning to soak the floor.

Parts of major thoroughfares in New York, such as the northbound lanes of the Saw Mill River Parkway and the Cross Bronx Expressway, were temporarily closed due to flooding and at least one downed tree.

Central Park recorded its second-highest hourly rainfall total, recording 2.07 inches in one hour. This represents a 1-in-20-year flood for Central Park.

Officials in New York’s Westchester County were working to rescue people whose vehicles were submerged in water, according to Carolyn Fortino, a spokesperson for the county executive.

“At this time, residents are still strongly advised to avoid all travel unless fleeing an area that is subject to flooding, or under an evacuation order,” she said in an email.

A flood warning was also issued for Staten Island, which had seen about 4 to 6 inches (10.2 to 15.2 centimeters) of rain, according to NYC’s emergency notification system.

The Associated Press contributed to this post.