Which types of PIREPs are classified as international?

The classification of PIREPs (Pilot Reports) focuses on their urgency and the conditions they report. Among the variations available, Routine (UA) and Urgent (UUA) are the types designated as international PIREPs.

Routine PIREPs are typically used to convey regular flight conditions and experiences from pilots, providing essential information that can be utilized globally. These reports cover a variety of weather phenomena and operational conditions, and since they are regularly submitted by pilots during flights across international borders, they contribute to a collective database of flight information shared among all aviation stakeholders.

Urgent PIREPs, on the other hand, are issued in response to potentially hazardous conditions that require immediate attention. Due to their nature, these reports often relate to severe turbulence, icing, or other critical incidents that could affect flight safety. Just like Routine PIREPs, Urgent PIREPs are also disseminated in an international context, making them essential for ensuring safety in the global aviation environment.

The other classifications—Standard and Critical, Preliminary and Detailed, Mandatory and Advisory—serve different purposes and do not fall under the international category. They might refer to specific reporting nuances but do not have the same global applicability in the context of routine or urgent reporting needed for international