Looks like it piled up and started to melt then refroze where it is at. Happens all the time in Michigan where i am from.
If it is really untouched, then we have to appreciate the nature for the excellent design it has carved out on your porch and thanks for sharing with us.
Very nice, we have had tons of snow here in WA recently and it has been really weird because it switches from freezing rain to snow periodically. So we have like a 7 layer snow fall.
This pic of curly snow truely speaks of greatest artist i.e., Nature ..............Thanks for the pic.
Have lived in a portion of the country that gets Mounds of snow all winter , I can attest to some of the strange shapes you see after a storm. The type of snow along with any winds make some really surreal shapes.
Looking at the shape underneath.....it seems as if you had left your sofa outside...... jk The finish to the whole shape makes it a lot more awesome...Looks like a white velvet cloth covering your porch... Regards, RightMan