Doesn’t lake effect snow depend on the Great Lakes not being frozen?
Interesting question got me to looking on the internet for an answer. Looks like once frozen, lake effect snow is reduced. A storm can’t pull in additional moisture from the frozen surface to contribute to the snowfall. The temperature differential between the land and the lake is also reduced once the surface is frozen, so you no longer have a relatively warmer front running into colder land triggering precipitation.
https://www.almanac.com/blog/weather-blog/frozen-great-lake-story
The moisture source that builds glaciers. Warm surface waters and cold air from the north. Fire and ice is coming. That is how the ice age returns. We were at freezing today with 100 % humidity.