Storm Elena has caused significant disruptions across Greece, resulting in record rainfall and heavy snowfall in mountainous regions. The storm has led to flooding on major roads in Attica, including a serious incident on Poseidonos Avenue. Fire services received numerous calls for water removal and tree removals. Illegal connections to the sewage system were identified as a contributing factor to the flooding. Citizens are advised to take precautions against further severe weather conditions expected to continue throughout the week.