The lake-effect event continues to rage. This morning, the event has slowly transitioned into a more banded structure, as is now apparent in the radar image below.
We don't really understand these structural transitions, but I think in this case it might be related to a gradual veering of the large scale flow at ~700 mb (roughtly crest level) from westerly to northwesterly. This means the large-scale flow is transitioning from primarily across the surface convergence zone (see previous posts) to along it.
I really should be skiing.