Some of the most severe flooding is in Brooklyn, which has had more than 7 inches of rain in the past 24 hours.

\"PHOTO:
Brendan Mcdermid/Reuters
PHOTO: A woman walks through rain and flood waters in the Brooklyn borough of New York City, Sept. 29, 2023.
>
\"PHOTO:
Spencer Platt/Getty Images
PHOTO: A person walks away from his vehicle after it got stuck in high water on the Prospect Expressway during heavy rain and flooding on Sept. 29, 2023 in New York City.
>

New York Gov. Kathy Hochul and New Jersey Gov. Phil Murphy have declared states of emergency.

The rainfall rate exceeded 2 inches per hour in Brooklyn Friday morning and rainfall rates could stay at 1 inch per hour through Friday evening.

\"PHOTO:
Mike Segar/Reuters
PHOTO: A resident takes pictures of his flooded vehicle during a heavy rain storm in the New York City suburb of Mamaroneck in Westchester County, N.Y., Sept. 29, 2023.
>
\"PHOTO:
Michael M. Santiago/Getty Images
PHOTO: People walk under umbrellas amid heavy rain on Sept. 29, 2023 in the Flatbush neighborhood of Brooklyn borough New York City.
>

\"If you are home, stay home,\" New York City Mayor Eric Adams said at a news conference Friday. \"We could possibly see 8 inches of rain before the day is over.\"

\"PHOTO:
Michael M. Santiago/Getty Images
PHOTO: A person picks up a water pump in their flooded basement on E 10th Street amid a coastal storm on Sept. 29, 2023 in the Flatbush neighborhood of Brooklyn borough New York City.
>

Adams said Friday evening that there were no reported deaths or serious injuries. First responders rescued people from three basements and 15 apartments due to the flooding, he added.

\"PHOTO:
Jake Offenhartz/AP
PHOTO: Residents watch as workers attempt to clear a drain in flood waters, Sept. 29, 2023, in the Brooklyn borough of New York.
>

A travel advisory was issued in New York City.

The city's subways have \"only extremely limited\" service available, the Metropolitan Transportation Authority said. MTA Chairman Janno Lieber urged people to consider taking the bus.

\"There are 3,500 buses out there. They are rolling. They are getting to their destinations,\" Lieber said during a Friday afternoon press briefing, noting that only 44 were stranded at some point during the day. \"They are the lion's share of our mass transit right now.\"

One of the three Metro-North lines has been restored, Lieber said, while Amtrak told customers to prepare for train delays.

\"PHOTO:
Gary Hershorn/ABC News
PHOTO: A person walks through floodwaters in Hoboken, N.J., Sept. 29, 2023
>
\"PHOTO:
Ed Jones/AFP via Getty Images
PHOTO: Cars in floodwater on the FDR highway in Manhattan, on Sept. 29, 2023.
>

New York City's LaGuardia Airport and John F. Kennedy International Airport are reporting major cancellations.

All flights to LaGuardia were put on hold Friday morning due to the heavy rain while JFK recorded 8.58 inches of rain, marking the airport's wettest day on record.

\"PHOTO:
Gary Hershorn/ABC News
PHOTO: People walk through floodwaters in Hoboken, N.J., Sept. 29, 2023
>
\"PHOTO:
Spencer Platt/Getty Images
PHOTO: A vehicle sits submerged after it got stuck in high water on the Prospect Expressway during heavy rain and flooding on Sept. 29, 2023 in the Brooklyn Borough of New York City.
>

By Friday night, the rain in New York City will lighten up. Showers may continue Saturday morning, but the rain will move out of the Northeast by Saturday afternoon.

\"PHOTO:
Gary Hershorn/ABC News
PHOTO: People walk through floodwaters in Hoboken, N.J., Sept. 29, 2023.
>
\"PHOTO:
Andrew Kelly/Reuters
PHOTO: People walk in the rain in New York City., Sept. 29, 2023.
>

This month now marks New York City's rainiest September since 1882. New York City has seen more than 14 inches of rain this month; the city's average September rainfall is just 4.43 inches.

ABC News' Sam Sweeney and Jason Volack contributed to this report.

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