I’m going from Hartford to JFK this Friday and coming back on Sunday leaving JFK at 2pm. I’m thinking of taking Amtrak rather than driving as I usually do. Will the train system be reliable on Sund ay in the snow?
You may have trouble returning home via train.
Amtrak's current service advisories state that the northbound trains will terminate at New Haven, CT on Sunday.
Modified service for Sunday, January 20, includes:
Northeast Regional service (Boston – New York – Washington, D.C.): Trains 160,164, 88,161,135,167 will not operate between New York and Boston.
Vermonter (St. Albans, Vt. – New York – Washington, D.C.): Trains 54, 57 will not operate between St. Albans, Vt. and New Haven, Conn.
So much for the Vermonter.
The Northeast Corridor trains 140 and 132, the late Sunday trains, are not currently listed as affected, so you may be able to take one of those. But you should expect them to be a bit crowded...