Italy: Adverse weather forecast to continue across northern and central regions through at least June 14 /update 1

Severe weather is forecast to continue across northern and central Italy through at least June 14. Due to a passing weather system, isolated showers and thunderstorms are expected across the region over the coming days. The worst of the severe weather is forecast in northern regions June 12 before spreading across central regions through June 13. Conditions are expected to improve across much of the affected area from June 14. Heavy downpours may lead to flooding in low-lying areas, especially in areas where river levels are already high and the ground is saturated from previous rainfall over recent days. Strong winds may cause property damage and power outages.

As of June 12, officials have issued the following weather warnings across the affected area:

• Orange thunderstorm warnings (the middle level on a three-tier scale): Friuli Venezia Giulia. Lombardy, Piedmont, and Veneto regions.

• Yellow thunderstorm warnings: Emilia-Romagna, Marche, and Trentino Alto Adige regions.

• Yellow strong wind warnings: Friuli Venezia Giulia and Veneto regions.

Officials will likely update and extend the coverage of weather alerts over the coming 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 rain 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.

Floodwaters and debris flows may render some bridges, rail networks, or roadways impassable, impacting overland travel in and around affected areas. Ponding on road surfaces could cause hazardous driving conditions on regional highways. Authorities could temporarily close some low-lying routes that become inundated by floodwaters. Disruptive weather may cause delays and cancellations at airports in the affected regions. Flooding could block regional rail lines; freight cancellations are possible in areas with heavy rainfall and potential track blockages.

Localized business disruptions may occur in areas impacted by severe weather; some businesses might not operate at full capacity because of damage to facilities, possible evacuations, and some employees' inability to reach work sites.