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downburst
Definição1
A strong downdraft which induces an outburst of damaging winds on or near the ground.
Fonte1
FEDERAL AVIATION ADMINISTRATION. Pilot/controller glossary (P/CG). 2014. Disponível em: https://www.faa.gov/air_traffic/publications/atpubs/pcg/index.htm. Acesso em: 10 jun. 2014.
Nota Adicional1
To create a downburst at the ground, the downward (downdraft) speeds in the thunderstorm must be unusually high, and this downward flowing air must penetrate close to the ground. These conditions can be met when rain falls through an atmospheric layer with relatively low humidity.
Contexto
It is not necessary for the thunderstorm to produce hail or tornadoes to produce a downburst. Damage from downbursts can be so severe that it is mistaken for tornado damage.
Subárea
Meteorology
Related Term
microburst
Français
rafale descendante
Imagem