Air Elemental Whirlwind - what happens when it is attacked

[Optimistic Cynic]

The whirlwind ability says that when a creature comes into contact with the whirlwind, things happen.

Does this apply to only things that enter it's square, or does it also affect creatures that hit the whirlwind with natural attacks? Is there an actual rule regarding this? Thanks!

[Trish Megistos]

Whirlwind (Su) wrote:

Another creature might be caught in the whirlwind if it touches or enters the whirlwind, or if the whirlwind moves into or through the creature’s space.

Looks like it.