Winter is slow to come to the North San Juan zone. The sheer lack of snow coverage means avalanches are unlikely. The isolated exceptions are those high-elevation shady slopes that held onto the early season snow. If you're looking to recreate on snow, these are also the slopes that will be most alluring, since elsewhere is very rocky and shallow. If you find a slab on northerly-facing aspects, there is also depth hoar on the ground.
The snowpack is discontinuous in many areas, and in many places the snowpack is faceted from top to bottom with no overlying slab. If you find a slope with continuous snow cover where you don't fall right through to the ground, investigate the basal weak layers carefully before riding. Shallow areas on the margins of slopes, over rock bands and rollovers are the most likely place to trigger an avalanche. In these areas, the weak layer is closer to the snow surface making it easier to effect.
On other slopes, you're biggest risk it hitting shallowly buried obstacles. It's still early, don't blow your whole season getting injured by thinking the thin blanket of snow does anything more than obscure nasty rocks and logs underneath.