Weibull mixture model in matlab

Hello everyone in this fantastic community. I just discorvered that I have a bimodal wind data, traditional Weibull distribution is not fitting the data well for that matter. I would like to use Weibull mixture instaed (weibull-weibull mixture) but am having trouble doing it. Am a student who's in the progress of learning matlab, so I would really appreciate a guiding example. Thank you.