There is actually enough open water to produce lake effect snow in the Keweenaw, although it would be diminished some, due to some ice on the lake. The main factor is the atmosphere. We are getting to the twilight of the lake effect season. Air temps can be cold here at the surface, but not always above the ground where it counts the most.
So I guess the bottom line is, the lake may still supply some LES or lake enhancement, but getting into spring snow season.
-John