Lisa cleared the sidewalks and porch this morning and said I should take a look at the garage eaves today. Instead of a bunch of long icicles, we got a different snow formation.
Presumably because it's just a little bit warmer and there's rain mixed into this snow, making it wetter and icier, the snow is slipping off the roof of the garage and forming cornices.
When the load grows sufficiently, of course, it collapses with a loud thump. It wouldn't be much fun to be under it, I think.
When we ordered the kit to build the shelter over the travel trailer, we looked at historical maximum snow accumulations and what we had experienced in the years we'd been living here, then doubled that when ordering the necessary snow loading. Lisa also had us pay extra so that the sheet metal corrugations run from top to bottom of the roof rather than along the length. This is harder to assemble, but it means that snow is much more likely to slide off the roof rather than accumulate. We're now seeing how well the roof holds under what looks to be the largest accumulation we've had since we moved here a decade ago.