AP reports: “Amtrak has stopped trains about an hour south of the city in Providence, R.I. The Massachusetts Bay Transportation Authority, which operates commuter trains into Boston as well as the city’s subway, called the T, and the city’s buses suspended all operations.”
Megabus has suspended travel, while Logan Airport will remain open, and allow flights to and from Boston. JetBlue (which begins flying Philly-Boston next month) will allow passengers to change their tickets for free if they no longer wish to fly in or out.
Update [11:30 a.m.] For now, @Amtrak is updating on travel to Boston via Twitter:
A decision about restoration of #Amtrak service into Boston will be made when local authorities inform us operations can resume.
— Amtrak(@Amtrak) April 19, 2013
Update [4:27 p.m.] Amtrak has suspended all train service between New York and Boston.