Description

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. 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 Level	Wind Force
1st-3rd	Light
4th-9th	Moderate
10th-15th	Strong
16th or higher	Severe