Weather effect trouble

[eXirrah]

Ok so in my map I use rain weather effects and fog weather effects.
The rain weather effects are periodic and the fog weather effects occur on some
conditions.

The problem is that for example when it is raining and a fog is to be created, sometimes
the fog removes the rain or the rain continues but I loose the handle to it(the
variable that holds the rain weathereffect becomes null).

I created different rects for the effects that are big as GetWorldBounds() rect.

Why is this happening?

 

[Azlier]

Well, weather is an odd thing. You can only have one weather effect inside a 512x512 square. The first weather effect's handle slot is null. Destroying null actually removes the first weather effect.

 

[eXirrah]

Well sometimes it works, i.e. there is fog and rain at the same time over the
whole map and sometimes it doesn't...

I was trying to understand why sometimes it works and sometimes it doesn't all
day long.

I was thinkin of stacking and non-stacking weather effects and trying that theory now.
I'm using dalaran white fog (heavy and light) + rain (heavy and light;ashenvile and felwood)
I believe that sometimes it works cause some of these rains can actually be stacked with one
of the fogs.