Thump goes the snow cover

My new array is mounted on a low pitch roof (for new england) about 35 degrees from horizontal. I have had snow cover on the panels on an off all winter but not significant. We have been having snow on and off for the last 10 days although luckily have been on the fringe of storms so I would estimate about 16" of snow cover compacted down 10" on the panels . Today we had a fast warm up and while on the phone with a client I heard and felt a rumble above me. Out of the corner of my eye I caught the snow sliding off the panels in one sheet ending with one big "Thump". The snow sort of arced off the roof and fell several feet away from the house which was fortunate as I have a set of wall mounted panels immediately below the roof array that are angled outwards. There was no trace of any snow landing on the lower edge of the wall mounted panels but it was close. I sure didnt engineer it that way but had hoped that if it did happen that that would be the result. My wall mounts are adjustable for angle but given this experience I think I might hold off a bit before cranking them out to their spring angle which would present more of a target. The rest of the roof is asphalt so snow never slides off, the only way it comes down is with a snow rake or melts.

I realize I could rig some snow hooks but I think I am just going to make sure I snowblow a path in front of the house away from the fall zone. Beats hurricanes and tornados but every climate has its solar challenges. :roll:

Meanwhile the freshly uncovered panels are cranking out the watts until the next storm.