Anemometer Height Data

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WebMet has anemometer hight information, but it's not always current.

This NRCS site includes a spreadsheet with anemometer height for weather stations throughout the country. I don't know how frequently it's updated, however. The author of the NRCS wind rose site pointed me here for weather station data collections. The NWS station history files (zipped and unzipped) seem to be the appropriate sources for anemometer height histories, but the links don't work. This is the ftp site where the files are supposed to reside, but they don't. Some of the other posted files may have relevent information, but I've not found the right one or ones yet.

I was looking specifically for the current anemometer height at the Great Falls Airport. I ended up calling the NWS office in Great Falls. They said it's an ASOS station and all of them (or most all?) use 10 m towers. The person I talked to was unaware of any published information with current NWS station anemometer heights.
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