Plume Hide'n'Seek!

Plume hide’n’seek. This plume is hiding behind a square object. The wind is blowing towards the camera here, and the methane plume is effectively trapped in the wind shadow of the object where the methane is collecting. Some of the methane in inevitably swept out of the shadow and forms a faint plume tail extending to the right in this view, but it is significantly more diluted by the wind than the portion that protected in the wind shadow.