Small scale refers to distances of some tens of kilometers and a little more.
In both cases, for large scale and for small scale, the geographic features of
the landscape, the shape and the surface, combine with the forces in forming
the winds. Some of the same forces that were encountered in understanding
the origins of the large scale global winds are found again i.e.
1. Gravitational force
2. Pressure gradient force
3. Coriolis force
4. Centrifugal force
5. Friction force
At this scale the coriolis or centrifugal forces do not play a significant role.