When observing the sunlight through light fog fields, it seems like you can see its rays. But objects that rise shadow-like into the sky against the light can sometimes also be observed in the fog. Both phenomena have the same cause: light scattering by fog droplets.
The latter phenomenon is observed when you stand in the shadow area of the object (tower, mast, etc.), where no sunlight hits the fog. Looking over the object, the light incidence and thus the light scattering is smaller than outside the shadow area. You can see the shadow projecting beyond the object.
