Line of cumulus clouds covering the whole part of the sky as can be seen in the first thumbnail. Unfortunately, it was too close for a proper photo. This seems to have occurred due to a weak area of instability present over the area despite a strong high pressure. No rain was observed from this line of cloud and dissipated quite quickly later. This cloud may have taken the shape of a line due to opposing winds whereby in Dingli the wind was blowing from the SW while on the rest of the Island it was a Northwesterly. The weather sounding confirmed instability in the lowest 3 layers of the atmosphere. The second thumbnail is a separate development of a cumulus congestus cloud due to weak instability over the Maltese Islands. The third thumbnail shows how this congestus cloud developed some 15 minutes later.