Freezing Levels - Garmin GDU 37X Pilot's Manual

Hazard Avoidance
PIREPS
Pilot Weather Reports (PIREPs) provide timely weather information for a particular
route of flight. When significant weather conditions are reported or forecast, Air Traffic
Control (ATC) facilities are required to solicit PIREPs. A PIREP may contain unforecast
adverse weather conditions, such as low in-flight visibility, icing conditions, wind shear,
and turbulence. PIREPs are issued as either Routine (UA) (blue) or Urgent (UUA)
(yellow).
Urgent (UUA)
PIREP

FREEZING LEVELS

Freezing Level shows contours for the lowest forecast altitude where icing conditions
are likely to occur.
114
PIREP Data
Freezing Level Data
Garmin GDU 37X Pilot's Guide
™
Routine (UA)
PIREP Selected
190-01054-00 Rev. E