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Convective cloud features in typical synoptic environments: At the leading edge of frontal cloud bands

length
60 Minutes

authors
Veronika Zwatz-Meise
Barbara Zeiner

Convective cloud features in typical synoptic environments: At the leading edge of frontal cloud bands

Published: 01 January 2005

Mesoscale Convective Systems frequently develop at the leading edge of frontal cloud bands. This is most likely the situation where there is a specific vertical distribution of air mass and conveyor belts: a warm conveyor belt at low levels in front of the front and a dry intrusion in the layers above. Such a situation develops when a jet streak crosses the front; dry air on the cyclonic side of the jet axis overruns the frontal cloud band and reaches its leading edge. Whilst the relative streams of the dry intrusion are sinking behind the frontal cloud band, they change to rising during the crossing of the front.

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Filed under Keywords:

Conceptual Models, Synoptic Scale Meteorology, Convection, Conveyor Belt