PBAoE's with Flight

Just want to get the best possible understanding of what happens when using a PBAoE power while in flight (or at least in mid-air):

Let's say I'm using Arctic Air, which has a 25 ft radius of effect... is this to be taken literally as a spherical radius around my character? Assuming this, the best use of the radial range would be to remain at ground level at all times, but I've been making use of it mostly by hovering just above melee range. So by doing that, I'm basically losing 10 ft or so of the potential range of the power. I'm about 90% sure this is how it works, but correct me if I'm wrong?

EDIT: This question also applies to PBAoE melee range attack powers, with a smaller radius.

Sphere, yes.

Quote:

Originally Posted by Dispari I don't know why Dink thinks she's not as sexy as Jay was. In 5 posts she's already upstaged his entire career.

In most cases, PBAoEs are spheres. Some few, usually the ones used by pseudopets, are cylinders. The most notable example is Caltrops, which was briefly bugged a while back to have a VERY tall cylinder. It was capable of hitting enemies flying at the zone ceiling, but was no wider than normal.