Septa has just announced that service, with the exception of the Market Frankford and Broad Street Lines, will be suspended beginning at 4 a.m. Saturday, January 23. This includes the Lansdale/Doylestown Line Regional Rail that runs through Ambler.
Service is scheduled to resume at 4:00 a.m. on Sunday, January 24th, however, this is based on conditions. You can stay updated via SEPTA’s website.