Wind + bangs = NOT COOL! 
Believe me, "fringe" will only make things worse since there's no way to secure them. And the longer the "fringe," the worse the tangles.

Living in desert country, high winds are something I must often deal with. The best solution, seriously, is to remain indoors. If you work outdoors, however, then I would suggest following Sakina's advice with the aloe gel. Just slick down whatever ends are sticking out of updo's.
    I usually wear a single braid and if it ends up looking ratty at the end of the day, I just re-braid it. No big deal. You can also tuck the braid into the back of your shirt if you're really worried about it.

Another little thing that might help is to lightly coat your hair with water, aloe gel, oil or all of the above before braiding.