That nam run wasn't included in its guidance. It came after 3:20. That being said the other mesoscale model with any legitimacy the rgem didn't fall apart like the nam at all. In fact the rgem was a little better than it's previous run.
It's because one of the 2 major weather models relied on most heavily to forecast weather in the US is still showing over a foot for most of Long Island.
It still has that double barrel low thing going on but I think the models will resolve this eventually. Choosing the left side would be ideal for us lol
Not being facetious when I say this, but they are always getting new data. Thus we shouldn't be surprised to see waffling around. Especially in this set up.