That is an ugly evolution on both the GFS/Euro within the Great Lakes region mid-week. I hope to hell the GFS is wrong but that would advertise several-plus days of having a closed upper-level low parked overhead which becomes cut-off. Is this unlikely...probably but it's not something we haven't seen before in the spring.
If anything though, there seems to be an increasing signal for troughing in the West so if we can avoid any cutoff or closed off crap we would more than likely be on the warmer side.