We keep getting questions about winds at St.Ignace, MI. Although rumor is that a funnel between two Great Lakes has to be a really windy place which has to be true by all laws of meteorology and common sense, although the bridge from the land to the Mackinac Island has a dedicated site to warn about wind conditions, the wind is very unpredictable substance.
So, here is the link to one of the best weather analytic sites which can give you the historical prospective:
Check it out and compare with your own windy spot of choice. That will give you idea and confidence for coming on the scientific basis!
Cheers!