Property element for source URL Property element for general highlight Property element for bulletintype Complex property element type for danger ratings Complex property element type for danger ratings Property element for avalanche and snow discussion Property element for predicted air temperature Property element for predicted wind speed range Property element for predicted wind direction Property element for predicted sky conditions Property element for predicted amount of new snow in forecast period Property element for location reference Property element for name of location Required property element for specifying sub type of region (forecast area, drainage,..) Property element for aspect of location Property element for elevation of location Property element for aspect-elevation of location Property element for time reference Includes a single danger rating with no further aspect, elevation or terrain feature specifications Includes danger ratings presented in form of an aspect elevation diagram as commonly used in the USA and parts of Europe Property element for general comment Property element for custom data