What visibility condition is indicated by the term 'obscured' (VV)?

The term 'obscured' (indicated by the abbreviation VV) refers to a situation in meteorology where visibility is significantly limited at the surface level, primarily due to extensive cloud cover. Specifically, when the visibility is noted as 'obscured,' it generally means that there is complete cloud cover, leading to an inability to see beyond the clouds at the surface. In this context, 8/8 cloud cover indicates that the sky is completely covered by clouds, effectively blocking any view of the terrain or objects at the surface. This situation can be critical for aviation, as pilots need to be aware of such visibility conditions for safety.