A supercell that I had been observing for a couple hours never changed its overall appearance much from this, except to widen and shrink its core on a few cycles. Here, an old forward-flank core at right was thinning, while a substantial but narrow dump (downburst) descended from the north rim of the mesocyclone region, complete with very nice rain foot. The foot probably was kicking out some severe hail too. Near the time I shot this, a lightning strike from the anvil arched overhead and started a grass fire about a mile off to my right rear!
1 N Aroya CO (8 Jun 24) Looking W
38.8659, -103.127