Case study of a dark stripe associated to a depression over the Atlantic: 27 October 2002

Description

This case study discusses a Dark Stripe visible in water vapour imagery behind a Cold Front.

Content

This case study will concern a Dark Stripe visible in water vapour imagery behind a Cold Front. This Dark Stripe indicates the presence of descending dry air, which can be of stratospheric origin. The stripe develops along the cyclonic side of the white water vapour band. Typical places of appearance of Dark Stripes are the rear of Cold Fronts and Occlusions, and the forward sides of Warm Fronts.

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