The ECCE Weather Club, in collaboration with the Swiss Federal Office of Meteorology and Climatology (MeteoSwiss), is held online every first Tuesday of the month from 13:00 to 14:00. The speakers present characterizations of specific significant recent meteorological events (case studies) or explain some key tools used to establish a weather forecast (e.g., map of 500 hPa geopotential height, vertical profiles, etc.). The talks are followed by a lively discussion.