The weather situation has caused MARC train service to be cancelled north of Baltimore tomorrow. There seems to be no rhyme or reason to why based on the predicted weather and the current weather situation. Amtrak will be making local stops from Perryville to Baltimore.

From the MARC website:

MARC train service has been advised by Amtrak that there will be no MARC train service tomorow morning, between Perryville and Baltimore ONLY. MARC trains 503, 509 and 513 will not run, Amtrak will supply train service between Perryville and Baltimore with Amtrak trains 67, 151 and 181 making all stops from Perryville and Baltimore. All MARC trains will run between Baltimore and Washington at this time.