[UPDATE BELOW] Penn Station, typically THE Friday evening destination for hip New Yorkers in-the-know, may not be the place to be tonight, at least between the hours of 4 p.m. and 8 p.m. Due to this morning's Amtrak train derailment, the MTA is advising commuters who rely on the Long Island Railroad "to leave New York City before 4 p.m. today, or delay departure from the city until after 8 p.m." As an alternative to this, the MTA suggests trying your luck at Brooklyn's Atlantic Terminal. They have a lovely Starbucks on the street level.

The reason for the warning, according to the MTA: "While the LIRR normally has use of nine departure tracks from Penn Station (Tracks 13 through 21) because of the Amtrak derailment this evening, the LIRR will be limited to Tracks 18 through 21, a reduction of more than 50% of its normal track space at Penn Station."

Amtrak will also be getting creative as a workaround following a day of delays, and NJ Transit is "preparing a service plan" for tonight's commute, after previously suspending all service in and out of Penn Station following the derailment.

We are preparing a service plan for PM commute to include some service OUT of #NYPenn ONLY. MTD will continue to operate in/out of Hoboken — NJ TRANSIT (@NJTRANSIT) March 24, 2017

An investigation is underway regarding the cause of the incident. The D.C.-bound Amtrak train was leaving Penn Station at a slow speed around 9 a.m. when the train "sideswiped" a NJ Transit train.

"As we were pulling into the station we heard a loud noise—it was like metal crushing," one passenger on the NJ Transit train said. "It lasted for about 15 seconds. It was very loud and rocked the train. People were already standing up preparing to disembark the train but no one in my car fell."

Two people reportedly sustained minor injuries, and Amtrak described the incident as minor. Tonight's commute, on the other hand, will be major.

Update 4:15 p.m.: The MTA just announced that it's cancelling 29 rush hour trains out of Penn Station today, in order to make room on the tracks for NJ Transit and Amtrak. Sharing is caring, you guys.

Here's the official announcement—forecaster says we're in for a sh*tshow: