Matt,
I did a search on snow damage and found this posting by C J Campbell

http://groups-beta.google.com/group/...2?dmode=source

in which he described broken tailwheel and damaged tailcones due to
heavy snow.

We always put wheel chocks to prevent our plane from rolling either
way. In seeing the only cessna 172 on the ramp with nosewheel down
having tiedown ropes sloping forward convinced us that we should tie
down our plane the same way during winter months.