Weatherwatch: Can you really hear the wind?

Some would argue airflow is silent, and that only the objects in its way give rise to vortex shedding or soughThe evocative sound of wind in the trees, called psithurism or sough, occurs when the smooth, “laminar” flow of air becomes turbulent around branches, twigs and leaves. The different scales of obstruction give rise to a mix of different frequencies of sound, resulting in something like white noise. Wind through pine trees is higher pitched because of the smaller size of pine