>>14482764 season tents are built stronger and with steeper walls usually so they can handle a bit of snow. But yes, if it’s going to snow a lot, you do need to knock the snow off. You can use a 3 season tent too, but you just need to be even more diligent about it. Also you need to stake them well, which can be a pain in the ass to do when the ground is frozen (they make big snow stakes that you can bury, poor water on, and freeze into an ice block)
