Jonas Piontek - Storm Chaser on Instagram: "Twisting and turning, the underside of this ghostly night-time shelf cloud spirals into all directions, pushed by wild interactions of warm air, drawing into the storm and cold air being swept away from its dense precipitation core. If you look closely you might see a few beautiful spirals emerging in the clouds, popping in and out of existence, torn apart by the turbulent forces pushing against any degree of vortex-formation. I wish this would have be