To summoning the power of the winds and ask for its help in spell casting is a great way to get some extra punch for your spells. They whole idea of calling the wind is an ancient and classical one. Many spells and rituals can be helped by calling the wind before starting. Once you have gathered the needed items for your spell and cast your circle, turn to the north and call the wind with something like the following...

"Wind of the north, of cold and might
Aid me in my work"

Turn to the east....

"Wind of the east, of minds so bright
Aid me in my work"

Turn to the south...

"Wind of the south, of passion so true
Aid me in my work"

Turn to the west...

"Wind of the west, so gentle and blue
Aid me in my work"

It is also possible to just call the one wind needed to power your particular spell.

Then procede to cast your spell knowing the wind will help carry your energies to the needed place.