Magic‎ > ‎Spells (Paizo)‎ > ‎S‎ > ‎

Solid Fog


School conjuration (creation); Level magus 4, sorcerer/wizard 4, witch 4; Domain cloud 4

CASTING

Components: V, S, M (powdered peas and an animal hoof)

EFFECT

Duration 1 min./level
Spell Resistance no

By the way...
The effects created by this spell do not move with a ship, but they do reduce the speed of a ship moving through them to half.

Source Skull & Shackles Player's Guide