Translated from Latin meaning nebulous, their cloud abbreviations can be respectively written as ‘St neb’.

Low-level fog is an example of stratus nebulosus.

Its usual appearance is a sheet of gray sitting above the ground.

Very dense fog can be classified as stratus nebulosus opacus, which translates to a stratus cloud that has no detail and is dark enough to block out sunlight.

Stratus nebulosus clouds are commonly paired with cloud varieties opacus (opaque) and translucidus (see-through) and can produce precipitation (praecipitatio) on occasion.