I'm not saying its going to happen, but I think your correction vector here is a snowy one. I don't see a lot of margin for error on the less impactful end of the spectrum (unless anyone was expecting 18" lol)...sure, it may bump north a bit, but it won't be major...my largest uncertainty stems from a more proficient interaction with the northern stream at the last moment..
Don't sleep on a blizzard just yet, but plan on most amounts being generally under 1'.