Split Front

60 Minutes

Veronika Zwatz-Meise
Barbara Zeiner
Vesa Nietosvaara
Aulikki Lehkonen

Split Front

Published: 01 January 2005

A Split Front is accompanied by a cyclonically curved cloud band, which, contrary to a classical Cold Front, contains a distinct double banded structure with cold cloud top temperatures at the leading edge and warmer cloud top temperatures at the rear edge. The conceptual model of a Split Front is strongly associated with jet streaks and sinking of very dry stratospheric air. The initial stage of a Split Front is generally an Ana Cold Front type. In contrast to the Ana Cold Front, the Warm Conveyor Belt is overrun aloft by the relative stream of the dry intrusion. This process takes place as the warm air ascends ahead of the surface cold front with a forward component relative to the frontal system.

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Filed under Keywords:

Conceptual Models, Synoptic Scale Meteorology, Cold Front, Split Front