I rarely see anyone using Storm. It's pretty weak as a support role and subpar in damage and trying to use it for damage causes a bunch of random knockback. I know no matter how situational or flat out useless a power is there's gonna be someone furiously typing how that one specific situation came up for them once and that power was perfect in that moment and totally justified having the power sit in their tray for weeks on end never being used before or after that point. Which makes talking about changes like this difficult.
But I'm gonna do it anyway!
So here's some ideas for Storm Summoning
Gale: Increase the recharge, reduce the KB to KD, maybe give it minor to hit debuff
02 Boost: Give it some 10 foot splash healing
Hurricane: Knockback to a chance for occasional Knockdown. Remove the repell. Reduce the to hit debuff since it's actually useful now and doesn't need a massive debuff to lure people into it for the 5 minutes before they respec back out of it. Perhaps make it like Disruption Field where you can put it on allies. Keep the -range debuff and it'll be a darling ability for meleers of all kinds.
Lightening Storm: Have it follow the user, reduce the knockback to knockdown, increase the recharge time on it to balance it.