Formation of altocumulus clouds due to the lifting of a warm and moist airmass probably from the surface as a line of bad weather (solid black line) on the surface pressure chart was to the west of the Maltese Islands corresponding perfectly with the altocumulus clouds seen on the visible satellite image which are the second and third thumbnails respectively. The sub-species perlucidus means that there were gaps in the cloud cover. Upon analyzing the weather sounding such forcing was confirmed with thermal and steep lapse rate and only little CAPE perhaps the reason behind these clouds looking flattened. However, such clouds could also be stratocumulus perlucidus which have exactly the same formation mechanisms but form at lower altitudes because the clouds formed at the altitude region of between 1.5km and 2.6km, the level at which the photographed clouds could be both cloud species.