Sense Currents

Sea Witchery
85 XP

MP Cost: 20
Threshold: 1
Components: V, S
Casting Time: One round
Range: 10 miles per caster's HD
Target: Self
Duration: Instant
Saving Throw: None
Prerequisites: Arcana 4 ranks, active storm clouds
Magic Attack Roll: None

When you cast this spell you gain a clear picture of the water’s movement within range of the spell. If you wish you may use this knowledge to assist a ship’s captain, increasing the ship’s base speed by +1 knot for the rest of the day.