Fog

Dungeon Master's Guide v.3.5 (DMG)Updated 3.5

Fog is a D&D 3.5 rule entry from DMG. Category: Base; Subcategory: Surroundings.

Category
Base
Subcategory
Surroundings

Whether in the form of a low-lying cloud or a mist rising from the ground, fog obscures all sight, including darkvision, beyond 5 feet. Creatures 5 feet away have concealment (attacks by or against them have a 20% miss chance).