Greece: Adverse weather forecast across western regions through at least Feb. 25

Severe weather is forecast across parts of western Greece through at least Feb. 25. Heavy rainfall and isolated thunderstorms are forecast across the Ionian Islands and Peloponnese regions Feb. 20 and further showers and storms are expected in the region over the coming days. Storms may be accompanied by strong wind gusts, lightning, and possible hail. The Hellenic National Meteorological Service has issued orange heavy rainfall (the middle level on a three-tier scale) and yellow thunderstorm warnings across the Ionian Islands and western Peloponnese and yellow heavy rainfall warnings for the eastern Peloponnese. 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.