Seems the NAM does well when it deals with convection. 2016 every model except the NAM had that storm further east. The NAM ended up being correct with the storm hugging the coast a lot more. I believe I don't remember the year a big blizzard was supposed to hit NYC. The NAM had a run where it said no way and the storm whiffed big time. People were pissed that they shut down the city but we are talking about 50 miles being the difference between 2 ft and 4 inches. There's a reason why Mets don't really use the NAM as much as the Euro and GFS.