Level: Air 1, Beguiler 1, Cleric 1, Druid 1, Sorcerer 1, Water 1, Wizard 1
Components: V, S
Casting Time: 1 standard action
Range: 20 ft.
Effect: Cloud spreads in 20-ft. radius from you, 20 ft. high
Duration: 1 minute/level
Saving Throw: None
Spell Resistance: No
A misty vapor arises around you. It is stationary once created. The vapor obscures all sight, including darkvision, beyond 5 feet. A creature 5 feet away has concealment (attacks have a 20% miss chance). Creatures farther away have total concealment (50% miss chance, and the attacker cannot use sight to locate the target).
A moderate wind (11+ mph) disperses the fog in 4 rounds. A strong wind (21+ mph), such as from a gust of wind spell, disperses the fog in 1 round. A fireball, flame strike, or similar spell burns away the fog in the explosive or fiery spell’s area. A wall of fire burns away the fog in the area into which it deals damage.
This spell does not function underwater.
Source: Player’s Handbook (version 3.5), page 258. Corrected for gust of wind, which is approximately 50 mph and would count as a strong wind, not a moderate one.