Formation of mid-level clouds with fringy lower parts being brightly lit up by the setting sun. Such clouds form due to unstable mixing of warm and cool airmasses. In the surface pressure chart (3rd thumbnail), it is clear that a warm front had passed over the Maltese Islands and such clouds are typical formation in the warm sector of a mid-latitude low pressure system. Decaying altocumulus lenticularis (first thumbnail) was also detected in the same time of photographing these clouds. In Malta, there are no mountains but analyzing the wind pattern at 1600hrs CET via the second thumbnail, the Atlas mountains might have caused some waving in the westerly flow (wind has to bend around obstacles) which would have been a trigger for lenticularis formation. I must point out that this formation was very isolated and in a decaying state.