Signs of Instability

We saw about 300m of road bank @ NE aspect peppered with this 5-15cm depth fracture. Elevation ranging from 1750-1770m. It was storming most the day with little temperature change and -8 being the Valley bottom temp. My suspicion is that this released naturally because of the new snow on the bed surface and the timing we passed by prerelease, although we could have remote triggered from the road without noticing.