Italy: Adverse weather forecast to continue across most of the country through at least Sept. 29 /update 2

Severe weather is forecast to continue across most of Italy through at least Sept. 29. Strong wind gusts, lightning, and possible hail may accompany storms.

Officials have issued the following weather warnings across the affected area:

• Orange heavy rainfall warnings (the middle level on a three-tier scale): Friuli-Venezia Giulia, Liguria, Lombardy, Trentino-Alto Adige, Tuscany, and Veneto regions Sept. 27-28.

• Orange thunderstorm warnings: Friuli-Venezia Giulia, Lombardy, Trentino-Alto Adige, and Veneto regions Sept. 27-28.

• Orange strong wind warnings: Emilia-Romagna and Liguria regions Sept. 27 and Emilia-Romagna Region Sept. 28.

• Yellow heavy rainfall and thunderstorm warnings: Southern Italy Sept. 27 and southern and central Italy Sept. 28-29.

• Yellow wind warnings: Marche Region Sept. 27; Calabria, Marche, and Tuscany regions Sept. 28; and Calabria and Tuscany regions Sept. 29.

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.