I have a predator blind (Dick's Sporting goods) and it's not the high dollar kind but it does the job. I've had it out for 2 weeks and actually hunted in it last friday night with winds around 20 mph with gusts up to 30mph. As long as you have it staked down properly you should be fine. Plus "brushing" it in will help keep some weight down on it and help it not blow away.
...I am not skilled to understand, what God has willed, what God has planned, I only know at His right hand, stands One who is my Savior....