This is hard to answer as we have no idea what you mean by "top layers". I am also not sure why you would want to (or how you even could) buy clothing in the tropics and try to adapt that to a winter in Michigan.
At the very least you will need a warm winter coat. Dressing in layers is also a good idea, but the number of layers you'd need are totally dependent on how warm your coat is, how cold it is outside, what your layers are made of, your personal sensitivity to cold, and what you intend to do when you are outdoors.
You will be much better off waiting until you are in Michigan to do your shopping. Most importantly, stores will offer clothing that's actually suited to the climate, and you can ask local people for their advice on what you should buy, as well.
You can check a website like wunderground.com to see historical temperatures for your target location. Describing Michigan as "chilly" in the winter makes me giggle as in reality it's quite cold. Not as cold as many parts of Minnesota or Maine, but it is regularly below the freezing point in winter. Also, in most northern areas of the US the chance for freezing temperatures does not end in February, more like end of March to sometime in April.
See here for an example for Detroit last winter: https://www.wunderground.com/history/airport/KDET/2016/2/10/MonthlyHistory.html?req_city=Detroit&req_state=MI&req_statename=&reqdb.zip=48201&reqdb.magic=1&reqdb.wmo=99999