Pilot Weather Reports (PIREPs) provide weather observations collected from pilots. When significant weather conditions are reported or forecast, Air Traffic Control (ATC) facilities are required to solicit PIREPs. A PIREP may contain adverse weather conditions, such as low in-flight visibility, icing conditions, windshear, and turbulence. PIREPs are issued as either Routine (UA) or Urgent (UUA), the color is determined by the type.

Another type of PIREP is an Air Report (AIREP). Commercial airlines typically generate AIREPs.

PIREPs and AIREPs are displayed on the 'Map' and 'Weather' Application Page's and will also display the flight level at which the report was given on the VSD.