Spell Details
Casting Time
Turn
Range
300 feet
Duration
Sustained, up to 10 minutes, plus 2 minutes per caster level
Target
100-foot radius sphere
Saving Throw
DEX Quick (half damage on successful save)
Effect
You summon a massive storm cloud that fills the target area with lightning, thunder, and wind. Each creature that starts its turn in the area takes 3d8 lightning damage and must succeed on a Quick save or be deafened and knocked prone.
Scaling
At 6th level, the damage increases to 4d8 lightning damage.
At 9th level, the damage increases to 5d8 lightning damage, and the storm can create tornadoes that can lift and carry creatures.
Special Notes
The storm can provide cover and create hampering ground.