A radar reflectivity pattern characterized by a hook-shaped extension of a thunderstorm echo, usually in the right-rear part of the storm (relative to its direction of motion). A hook often is associated with a mesocyclone, and indicates favorable conditions for tornado development. See Fig. 2, BWER, and Fig. 7, supercell.
HOOK (OR HOOK ECHO)
Meaning of HOOK (OR HOOK ECHO) in English
Weather and meteorology English vocabulary. Английский словарь погоды и метеорологии . 2012