Q
Q' - Quadrature
QBI - Compulsory IFR flight
QFE - Atmospheric pressure at aerodrome elevation (or at runway threshold)
QG - An abbreviation for quasigeostrophic.
QN - Question
QPF - Quantitative Precipitation Forecast
QPFERD - NMC excessive rainfall discussion
QPFHSD - NCEP Heavy Snow Discussion
QPFPFD - NCEP Precipitation Forecast Discussion
QPFSPD - NMC special precipitation discussion
QSTNRY - Quasistationary
QUAD - Quadrant
QUE - Quebec
