Any wind creates turbulence off the ground. Kite fliers (another hobby here) will note that the kite is not going to stabilize until it's about 30' in the air. Under that altitude you get ground effect, turbulence off trees, berms, buildings, vehicles, etc.
Long distance shooters (1,000 metres) have flags downrange to help them estimate what the wind is doing. I've watched one flag hanging dead, and another flapping in the breeze. -- And about the time you get "dialed in" for that windage, it changes.