The latest revision of the description page on the official GW2wiki, lists the Water based storm with a Chill effect and the Earth based storm with a Blind effect.
As I checked out the skill last time and saw no condition indication on any of the storms (in PvE) I wonder if it is glitched right now and what effects it has on Air & Fire to balance out the conditions. I still have to find a video showing the conditions as proof (PvP mayhem videos with a lot of people involved don't seem to prove conditions on targeted foes to me, as they could come from other sources)
Checked Glyph of Storms again this BWE and I could produce condition effects on Water (Chill) and Earth (Blind). Air has about 10% more damage than Fire, but both do not seem to produce a condition or a field/finisher effect as long as I tried my best.
I'd say this skill isn't finished yet and would expect to see an effect for each element come release. If it does I see this becoming really helpful. An aoe with an adaptable secondary effect is nothing to scoff at.
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