I tend to agree with Boomer, in removing any cover, from the bike during high wind instances, and placing it on the side stand, with a solid wall, adjacent.. I have run out from my workplace, and watched my bike teeter totter back and forth on the centerstand, when High winds were blowing, and jumped on the bike, put the side stand down, and still when the hurricane winds were blowing, the bike "wanted to stand up, and try to flip over.."...even with me sitting on it.. freaked me out.. .. I got soaked, during these vents, but the bike didn't flop.. then I began rolling the bike up to where the front wheel, when turned, was in contact with th building.. and that seemed to work the best.. by all means tho, remove the cover, during wind incidents, to remove the "sail".. ymmv.