You create a burst of billowing smoke on an unoccupied space on a solid surface you can see within range, filling an area no larger than two contiguous five foot cubes. The color of the smoke and the arrangement of its area (either vertically or horizontally) are determined whenever you cast this spell. Creatures or objects in the spell's area or behind the smoke are heavily obscured. You may also cause the smoke to animate, forming rudimentary shapes or symbols within it. The smoke dissipates at the beginning of your next turn or until a wind of moderate or greater speed (at least 10 miles per hour) disperses it.

The spell's area increases by one five foot cube when you reach 5th level (3), 11th level (4), and 17th level (5).