You create a 20-foot-radius Sphere
of fog centered on a point within range. The Sphere
spreads around corners, and its area is heavily obscured. It lasts for the Duration
or until a wind of moderate or greater speed (at least 10 miles per hour) disperses it.
At Higher Levels: When you cast this spell using a spell slot of 2nd level or higher, the radius of the fog increases by 20 feet for each slot level above 1st.