Formation of stratocumulus stratiformis opacus clouds initiated by a line of bad weather (solid black line in the surface pressure chart) over the Maltese Islands. The first thumbnail is the photo of the same clouds approaching the Islands looking more like cumulus humilis which are flattened. In both cases, such clouds form in weak convective currents. The second thumbnail is the weather sounding indicating that the clouds had formed at an altitude of between 975 metres and 1067 metres which is typical for such formation. Furthermore, one could notice a layer of dry air just above the cloud`s upper-level. The clouds developed quickly when cool, moist air travelled over a warmer ground inducing weak convective currents as shown by `Thermal` in the weather sounding without overcoming the dry layer above it. At the same time, there was high-level clouds making the clouds below look more dark than they really were. These clouds produced a widespread drizzle over the area differentiating them from cumulus clouds which normally produce a sharp shower.