...
The monitoring report files provided by the NWP Centres include information either on surface pressure or on geopotential height depending on each of the reported observation was used in their data assimilation systems. In mountain areas, the stations report the geopotential height of a standard pressure level instead of mean sea level pressure, and some Centres (e.g. ECMWF and JMA) are able to assimilate these observations and provide O-B departure values.
Why does the search for a specific ID not work sometimes?
The feature to search a station by its name and WIGOS ID is available on all WDQMS web tool maps. The search is based on the information displayed on the map, therefore if the station is not expected to report according to OSCAR/Surface schedule and did not report during the selected period (e.g. 6-hour) the dot is not on the map and the result of the search is null.