Alter Winds

Transmutation [air]
Level: Artificer * 1, Druid * 1, Hunter * 1, Sorcerer */Wizard * 1
Components: V, S
Casting Time: 1 minute
Range: touch
Area: immobile 10-ft.-radius emanation
Duration: 1 hour/level
Saving Throw: Will negates
Spell Resistance: yes
  You subtly enhance or diminish the effects of natural winds within the spell's area, which is an immobile emanation around a point touched by you as the spell is cast. Within the area, natural (but not magical) wind effects are either increased or decreased by one step in intensity (Core Rulebook 439). The maximum wind force you can affect with this spell is based on your Caster Level, as shown on the table below. Alter winds has no effect on magical wind effects.
 
Caster LevelWind Force
1st-3rdLight
4th-9thModerate
10th-15thStrong
16th or higherSevere