UPDATE at 4:30 PM...
A Winter Storm Watch is now in effect for all of New Hampshire except the southwestern portion (Keene to Manchester) for Wednesday night and Thursday morning. The NWS is calling for mixed precip to change to snow and become heavy tomorrow night, accumulating 6 inches or more.
My own call on this is based on the way these spring storms usually go: The most will fall at elevation. I'm going to guess that the lakes region will average around 6 inches of the heavy wet stuff while the summits of Gunstock and Red Hill could see 10 inches, and the higher ski areas (Wildcat, Cannon, etc.) stand a good chance at 12"+.
This one looks like it'll average Y1 on the Yuki scale. Here, kitty, kitty....