How is a missing temperature and dew point of 7 handled in an observation report?

In the context of aviation weather reporting, a missing temperature and dew point of 7 are typically handled by encoding the value as "M." However, if the observation report indicates that there is no temperature or dew point available, it may result in nothing being encoded for those parameters. This decision aligns with the conventions of reporting missed or unavailable data, emphasizing that the absence of a value must be clearly indicated to avoid misunderstandings.

This approach is critical in aviation, where precise weather data greatly impacts flight safety and operational decisions. By ensuring that either "M" (for missing) or an empty encoding is used, meteorological services can maintain clarity in reporting conditions. Therefore, in a case where values are entirely missing, there would be no data captured in the report, effectively conveying to the reader that no observation was made for the temperature or dew point at that time.