Group of standard observation attributes Abstract global generic observation element Basic abstract observation type Time of report Abstract observation type with unbound required locations Abstract observation type with a single required location Abstract observation type with unbound optional locations Abstract observation association type Avalanche activity observation element Avalanche observation element Avalanche bulletin element ISSUING FORECASTER SPONSOR OF BULLETIN END OF BULLETIN DATE END OF BULLETIN TIME Related observations External data element POINTER TO EXTENSTION_DEF FOR FILE PROCESSING INFORMATION EXPLANATORY TITLE OF TEXT MESSAGE OR FILE TEXT MESSAGE OR SHORT TEXT SUMMARY OF FILE CONTENT Field observation element Snowpack structure observation element Snow profile observation element Stability observation element Time range for rating Weather observation element Time of Observation Elevation if different from or different from specifications in location record Weather synopsis observation element Time of Observation