Storm Byron continues to sweep across Greece, unleashing powerful downpours and thunderstorms that are once again striking Attica on Friday, Dec. 5. Western and northern parts of the region have been hardest hit, recording the highest rainfall totals and facing mounting strain on infrastructure.
According to data from the National Observatory of Athens/Meteo.gr, the weather station at Vlychada measured a staggering 245 mm of rain from Thursday afternoon, Dec. 4, through Friday morning Dec. 5. By 7:00 a.m. Friday alone, 131 mm had fallen in Vlychada, while Avlona recorded 108 mm.
Flooded Streets and Disruptions
Successive waves of severe storms have caused significant disruption, particularly in western Attica. Mandra, Megara, Aspropyrgos, and Nea Peramos saw streets transformed into lakes as drainage systems struggled to cope with the volume of water.
Earlier in the day, heavy rainfall forced a temporary suspension of service on Line 7. Trains operated only between Zephyros and Agia Triada Piraeus before full service was quickly restored across the entire line.
Serious problems were also reported along Kifisos Avenue from early morning, with heavy traffic and lengthy delays. Near Peristeri, vehicles were moving at a crawl as standing water and slick surfaces made driving conditions increasingly hazardous.
Authorities remain on high alert nationwide as severe flooding, landslides, and vehicles swept away by fast-moving waters have been recorded in several regions. Officials continue to urge the public to exercise caution as the storm system persists.