How to produce different turbulent wind speeds

Dear Jason

I am using  the fast v8 to design pitch control for above rated wind speeds .I have problem with generating wind speeds.  I am using test 18 .fst file .please give me the steps how to generate wind speeds for pitch controller .I am a beginner , thank you in advance
   Best regards

Dear @Suresh.Nakkala,

Turbulent wind data for use with FAST v8 can be generated via TurbSim:

Best regards,