Those stars near the horizon, whose light has penetrated a long length of turbulent atmosphere, twinkle far more than stars overhead.

Next week, though, the high pressure that brought the calm conditions slips away, and in its place low pressure returns with a turbulent atmosphere.

This sort of unstable, turbulent atmosphere can sometimes signal a storm.

This was cirrocumulus undulatus created by a turbulent atmosphere - as winds blew at different speeds above and below they made the cloud bunch up into waves or ripples.

These were beautiful altocumulus castellanus, and their puffy towers gave warning of a turbulent atmosphere.