Ubuntu.

“Distinctive” is a bit vague. Do you want the typography to evoke an actual storm? Perhaps one of these might work:
http://www.blambot.com/fonts_sfx.shtml
http://www.blambot.com/fonts_design_horror.shtml

Hi, thanks for replies. Ok, distinctive is really a bit vogue. I thought about something bold, strong, powerful, ...

Perhaps one of these?:
http://fontfeed.com/archives/extra-bold-ultra-black-fonts/
http://www.hongkiat.com/blog/extra-bold-fonts/
http://typophile.com/node/65108

"I thought about something bold, strong, powerful, ..."

http://www.myfonts.com/fonts/itc/spotlight/
Brendel ripped the font and called it Hurricane.
This has serifs but it works for me as saying big, powerful storm.
Don

If by STORM you're thinking of something wild and destructive and unpredictable, you might try mixing different fonts or styles or weights together.

"If by STORM you're thinking of something wild and destructive," I believe this is well expressed in Martyrichttp://www.myfonts.com/fonts/mawns/martyric/
and North West http://www.myfonts.com/fonts/william-johnston/north-west/
Don

Ok, to give a direction:

i lookes the hole night for fonts and i think Ubunutu is really a nice one and i font additionally the font Avenir Next. Any other ideas in this directon?

thank and best regards
Yavuz