The National Meteorological Service of Greece has issued an urgent weather bulletin warning of deteriorating weather conditions starting from the afternoon of December 20, 2024. Regions including Corfu, Epirus, and western parts of Greece are expected to experience heavy rain and thunderstorms, leading to strong winds. Citizens are advised to take precautions to ensure their safety during these severe weather events. The situation is expected to improve by December 22 but may worsen again from December 23.