Alter Normal Winds

You can alter the winds in a 10-foot radius around yourself in one of three ways, chosen when you cast this spell. 

First, you can create a light breeze in calm conditions (including indoors or underground)that will disperse most lingering effects of gas, fog, or dust in the radius.  Your light breeze may also allow a small vessel with sails to move. You can determine the direction of the wind when you cast the spell. 

Second, you can reduce a light breeze to calm conditions, which may prevent a vessel with sails from moving.

Third, you can reduce a strong wind to a light breeze, mitigating the effect of storms and other dangerous conditions. The DM may wish to roll on the weather table in Chapter 5 of the Dungeon Master’s Guide to determine weather conditions at any point in time.