Glossary
Aviation Weather
Thunderstorm (Cumulonimbus) (CB)
Definition
A convective weather system producing lightning, turbulence, hail, and heavy precipitation
Related Terms
SIGMET (SIGMET)
Significant Meteorological Information — a warning of severe weather hazardous to all aircraft
Turbulence
Irregular atmospheric motion causing sudden changes in an aircraft's altitude or attitude
Wind Shear
A sudden change in wind speed or direction over a short distance, hazardous during takeoff and landing