I am also a bit confused as to what kind of records you are looking for. I haven't even heard of what a wind profile frequency spectrum is. I agree with JimS, maybe with a clearer explanation, I might be able to point you in the right direction. The only thing I can suggest in the meantime is looking over the data at NCDC (http://www.ncdc.noaa.gov/oa/ncdc.html). Anything and everything weather record wise is there from the US and an ever growing world database. Sorry I can't be more helpful.
Staff Meteorologist/Night Observer, KMWN (Mt Washington Obs., NH)