Low top supercell convective snow squall

[Nick Dewhirst]

These "mesovortices" features over Lake Ontario do have a supercell look to them although it appears their formation is quite unlike supercell formation. Unraveling the mysteries of deadly 'firehose' lake-effect snow eventsView attachment 19151

These structures even have BWER features:
BWER Lake Effect

This type of feature literally produces rotating intense vertical fountains of snowflakes over the lake.

I feel like it's almost as if the rotation suspends snowflakes similarly to hail from the true supercells, maybe leading to a large flake size/clumps? The rotation is impressive to me considering the scenario.

The BWERs are interesting. Since snow is the lightest (in terms of weight) form of preceipitation, the updraft wouldn't need to be overly vigorous in order to produce a BWER in a convective snow band. Very cool pics, Mike.