Prepared by the U.S. Air Force Global Weather Central (AFGWC). For each station listed, there is a name, WMO number, country code, latitude and longitude, elevation, and codes for observation types. This list supports many datasets where the observation report shows only the WMO number as a station identification. Frequently updated by the USAF, we get some of those irregularly. DSS has built some subsets, and has been at work compiling an historical library which documents station period of observation, station moves, etc.