Jellyfish-like cloud formation of altocumulus with tendrils indicating falling precipitation that is eventually evaporating in thin air. The anvil-like appearance of the cloud indicate that it had already reached a stable layer. The first thumbnail seems to confirm this as it indicates that the cloud base was around 6.4km altitude with the end of condensation level just higher up. Precipitation simply sublimed due to dry air underneath and never reached the ground. The cloud blobs themselves may have developed due to upper-level convection caused by an African low pressure system nearby.