Cu congestus

The main panoramic and first thumbnail photos show cumulus congestus praecipitatio clouds with the latter depicting a particularly isolated rain shower from one cumulus cloud. The second thumbnail shows an isolated patch of elevated altocumulus stratiformis perlucidus cloud (due to the relatively small cloud elements and small clear gaps gaps in the cloud cover) which very likely formed out of the top of former cumulus congestus cloud that had spread out upon reaching a mid-level stable layer at an altitude of around 550mb or 5.1km also obtaining the suffix cumulogenitus. The weather sounding in the third thumbnail had indicated only a limited instability spread relatively evenly across the entire air column. As a result, rising warm air from the surface had quickly lost buoyancy meaning the ability to rise further up in the atmosphere once it reached a certain altitude. The fourth thumbnail is the surface pressure chart showing a shallow low pressure of 1013 hPa located to the NE of the Maltese Islands instigating a degree of instability whilst the fifth thumbnail is the visible satellite image showing clouds circulation around the mentioned low which produced no thunderstorms on the day.

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