Thunderstorm (Final Fantasy XI)

Thunderstorm is a White Magic spell from Final Fantasy XI. It is an enhancing spell for Scholars that grants the target the bonus of a single lightning weather effect. 
The effect will stack if the zone currently has thundery weather, giving effect of double lightning weather. This will have no effect during a true thunderstorm (double lightning weather). Thundery weather has a chance (33% to 50%) to give Lightning spells a 10% power boost and a corresponding penalty to Water spells. If the Rairin Obi is equipped, the weather bonus will always be applied.
Ionohelix will always gain the full effect of this weather. If the caster has the Merit Job Trait Stormsurge, then this spell will also increase the target's DEX by +3 (to a maximum of +7 with full merits).
==Etymology==
Category:Enhancing Magic in Final Fantasy XI