Case: 27 June 2018

Summary

Complex multi-layer cloud deck event that transitioned to a single layer stratocumulus deck

Description

This was a complex stratocumulus cloud event with multiple (2 to 3 separate levels) closed cloud layers, precipitating decks at various times, and combinations of these characteristics throughout the earlier stages of this event. Boundary layer winds were light and westerly, though shifted northerly as the event progressed. The cloud field became less complex after midday and transitioned to a closed single-layer (cloud echo top heights approximately 1.5-2.0 km AGL) and precipitating deck after 15 UTC.

Available assets

Standard ARM profiling assets, SEVIRI. SACR

Critical period: 16:00-20:00

Single-layer closed stratocumulus deck

True color MODIS AQUA — Figure 57 True color afternoon MODIS AQUA image with overlaid LES domains. The image domain corresponds to the size of the model forcing domain.