Regular brawl: do weather effects cause desync?

[Banana O]

Do all stages with weather effects cause desync or is it dependent on the stage? For example I was looking at this thread and was considering using them but most of them have weather effects.

http://www.smashboards.com/showpost.php?p=9588889&postcount=387

 

[Mr.Chuy]

Shouldn't however don't be surprised if it does

 

[Toomai]

If there is any randomness at all in the weather, then there will probably be a desync. If it's deterministic like Final Destination's background, then theoretically not.