This spell creates a powerful cyclone of raging wind that moves through the air, along the ground, or over water at a speed of 60 feet per round. The character can concentrate on controlling the cyclone’s every movement or specify a simple program, such as move straight ahead, zigzag, circle, or the like. Directing the cyclone’s movement or changing its programmed movement is a standard action for the character. The whirlwind always moves during the character's turn in the initiative order. If the cyclone exceeds the spell’s range, it moves in a random, uncontrolled fashion for 1d3 rounds—possibly endangering the character or the character's allies—and then dissipates. (the character can’t regain control of the cyclone, even if comes back within range.)

Any Large or smaller creature who comes in contact with the whirlwind must succeed at a Reflex save or take 3d6 points of damage. Medium-size or smaller creatures who fail their first save must succeed at a second one or be picked up bodily by the whirlwind and held suspended in its powerful winds, taking 1d8 points of damage each round with no save allowed. The character may direct the cyclone to eject any carried creatures whenever the character wishes, depositing the hapless souls wherever the whirlwind happens to be when they are released.