I believe snow depth is to be reported as an average. I.E. if half your yard has 3 inch depth and half is bare you would report a snow depth of 1.5". @Cashtown_Coop can verify
Yep, yard was full and solidly covered when I left for work this morning. My backyard faces ESE but lies on a NW-facing slope. Also have some tall trees around the perimeter that provide ample shade, but even the parts that aren't shaded were holding strong. Tomorrow morning will be a different story ha.