5-34 Developed for Training Purposes Leerjet 35/36
February 1998
CAE SimuFlite
An altimeter setting in a U.S. METAR is in inches of
mercury. In an ICAO METAR, it is in hectopascals
(millibars). To avoid confusion, a prefix is always
assigned: an A for a U.S. report or a Q for an ICAO
report (e.g., A2992 or Q1013).
In the U.S., remarks (RMKs) precede recent (RE)
weather and wind shear (WS) information reported
at the end of METARs.
Low level windshear, not associated with convective
activity, will appear in U.S., Canadian, and Mexican
TAFs .