Greece: Adverse weather forecast across eastern and southern island regions Nov. 13 /update 2

Severe weather is forecast across eastern and southern island regions of Greece Nov. 13. The Hellenic National Meteorological Service has issued an updated orange level (the middle level on a three-tier scale) Emergency Deterioration of Weather Bulletin, advising that a weather system that has passed over the country in recent days will continue to bring heavy rainfall and thunderstorms to the affected regions. Showers and storms are expected to continue in western Crete and the Cyclades Islands through the afternoon Nov. 13 and in the eastern Aegean and Dodecanese islands through late Nov. 13.

Authorities have issued orange heavy rainfall and thunderstorms for Crete, the Cyclades, the Dodecanese, and the Northeast Aegean islands Nov. 13. Officials may update, rescind, or extend the coverage of weather alerts over the coming hours and days.

Sustained heavy rainfall could trigger flooding in low-lying communities near rivers, streams, and creeks. Urban flooding is also possible in developed areas with easily overwhelmed stormwater drainage systems. Sites downstream from large reservoirs or rivers may be subject to flash flooding after relatively short periods of intense rainfall. Landslides are possible in hilly or mountainous areas, especially where heavy rainfall has saturated the soil.

Authorities could issue mandatory evacuation orders for flood-prone communities over the coming days. Disruptions to electricity and telecommunications services are possible where significant flooding or landslides impact utility networks.

The severe weather could contribute to transport disruptions throughout the region. Traffic and commercial trucking delays might occur along regional highways. Flooding downpours could inundate some low-lying roads in areas with poor drainage. Strong winds might also pose a hazard to high-profile vehicles. Hazardous weather conditions might cause flight delays and cancellations at airports in affected areas. Authorities may temporarily suspend port operations or close beach fronts if strong winds trigger hazardous sea conditions.