I was hoping to get more feedback from the structural guys than the weather folks. Here in Pittsburgh, we have an unusual amount of accumulated snow laying around and more to come before a thawing. I expect that there will be more structural failures to come. Auto Show is now at the convention center witch had a floor collapse a couple of years ago. I would not enter that building on a bet.
I would keep an eye on the weather conditions, any rain on snow will make it many times heavier, my roof will support easily 5’ of dry Alaska snow, or more. But what you folks get down there is airborne oatmeal.
I would err on the side of caution for awhile and stay away from large places that still have snow on the roofs.