The GFS has a 28.30 low just off the coast on Friday. I know it means very little at this point but that is strong hurricane strength. Meanwhile other models show much weaker low pressure.
The closer we get to Monday night Tuesday arctic blast, the NWS keeps lowering the temps. May not get out of the teens on Tuesday. Not warming up to fast this morning either.
Both car tops 8 inches, other areas as low as 6 as high as 8, so I will say 7.5 inches here. Nassau never got changed to a winter storm warning as far as I know.
I believe at this point just watching how the models are playing out is all you can do. Trying to figure potential snow totals is basically guessing, but it can be fun and an interesting challenge.