ehhh this isn't looking that impressive for widespread significant rainfall totals. Greatest concern for several inches of rain is going to be the Hudson Valley into NJ tomorrow into the overnight but as the system continues sliding east its going to begin occluding. Also seems like there are two warm fronts with this...we get a diffuse warm front maybe into southern CT and dynamics are solid...so we're going to see rain but it should generally be light-to-moderate and a bit more on the spotty side with heavier rain tied into convection. The true warm front seems to get pinched off well south.
There will be some wild gradients with totals...some spots will probably see 2-3-4" of rain (but really spread out over multiple days) and some spots may struggle to even get an inch. All in all, a nice good soaking rain for some, perfect because the ground can easily absorb it and limit any major concerns for flooding. Could be big flooding through Hudson Valley into NJ