Symbol of Storms

Symbol of Storms
Evocation [air, electricity]
Reflex half (see text)
SR: Yes
V, S, M (powdered copper and pumice)
10 minutes, see text, 0 ft. (see text)
This spell functions as Symbol of Death, except that when triggered, a 30-foot-radius centered on the symbol fills with hurricane-force winds (75 mph). Each round, a bolt of lightning that deals 10d6 points of electricity damage strikes a random creature within the area. A successful Reflex save halves this damage. Unlike Symbol of Death, Symbol of Storms has no hit point limit. Regardless of the trigger method or methods chosen, a creature more than 30 feet from a symbol of storms can’t trigger it (even if it meets one or more of the triggering conditions, such as reading the rune). Once triggered, a symbol of storms remains active for 1 minute per caster level.
Effect: one symbol
Professions
Arcanist [6], Cleric [6], Druid [6], Oracle [6], Ranger [3], Sorcerer [6], Warpriest [6], Witch [6], Wizard [6].

Celestial Focus
North Star
Material Components
Powdered copper and pumice worth a total of 1,500 gp.
Related School
Evocation [air, electricity]
Effect Duration
See text
Effect Casting Time
10 minutes
Range
0 ft. (see text)
Legality
Legal to know and use.