A strike could disrupt rail and bus service on multiple lines, the MTA said Thursday. View Full Caption Flickr

NEW YORK CITY — Two Metro-North lines would not operate if NJ Transit workers strike next weekend, the MTA said Thursday, while a number of bus lines might be sent through Brooklyn instead of New Jersey.

Metro-North’s Port Jervis and Pascack Valley lines would not run in the event of a strike on Sunday, March 13, the MTA said.

The agency encouraged commuters to prepare a transportation alternative or plan to telecommute, if possible.

The MTA said it would begin alternate service options 24 hours after a strike is announced.

During rush hours, Metro-North would run shuttle buses between Rockland and Orange counties and the Hudson Line. The shuttle buses would not run during off-peak or weekend hours, and would not serve reverse commuters.

The shuttles would run from the Wallkill Metro-North Station to Beacon Station; from Harriman Metro-North Station to Tarrytown Station; and from Palisades Center in West Nyack to Tarrytown Station.

Tickets for the Port Jervis Line or Pascack Valley Line trains would be needed to board the buses.

Conductors on the Hudson, Harlem and New Haven lines would honor Port Jervis and Pascack Valley line tickets. Ticket machines at West-of-Hudson stations would not operate during the strike.

Additionally, some express buses that normally travel through New Jersey between Staten Island and Manhattan might be redirected through Brooklyn, depending on traffic conditions, the MTA said.

The X17J, X21, X22, X22A and X30 bus lines could run through Brooklyn in the morning and evening, while the X31 could run through the borough in the evening.

Transit staffers would be added to subway stations near PATH trains and the Port Authority Bus Terminal in the event of a strike, but longer than normal lines should be expected at MetroCard vending machines, the MTA said.

The Newburgh-Beacon Ferry and the Haverstraw-Ossining Ferry would operate normally.

Service updates leading up to next weekend will be available on the MTA's alerts website and on its social media feeds.