some of the Hi-Res CAMs keep daytime snow around here much lower and accumulations only reaching 5-7" in total. did some model sounding investigation and one main difference is much weaker omega in the CAMs. Verbatim the NAMs would give us a really good chance at thundersnow.
One negative factor is that after the initial 3 hour burst the DGZ gets really shallow due to strong WAA and it doesn't really recover until the very tail end.
31/29 here. should be off to the races once it starts. would expect snow to begin in 2 hours or so. models have backed off morning snow a bit here but really get things cranking with the defo band in the afternoon
Clipper on Wednesday night and Thursday is trending north and weaker. May sneak out with nothing from it. Has more serious implications for the weekend storm
looking more and more like it will be two distinct parts to the event here. one light snow swath with the WAA Monday night and early Tuesday, then a higher potential snowfall Tuesday evening with the defo band as the low wraps up south of Chicago