This is my very first attempt of making a time-lapse video, depicting mainly the birth and decay of small cumulus clouds and the passage of a stratiform cloud over the city of Thessaloniki, in Greece. The original duration of the video was 33:12 minutes and a Redmi 5A phone camera was used. The camera is oriented towards the "Upper city" of Thessaloniki, or as in greek, "Ano poli". The video was shot on the 14th of March 2018.