Kosovo, Serbia: Adverse weather forecast to continue across the region through at least May 24 /update 1

Heavy rainfall and thunderstorms are forecast to continue across Kosovo and Serbia through at least May 24. Strong wind gusts, lightning, and hail may accompany storms. The Republic Hydrometeorological Service of Serbia issued the following weather warnings across the affected area:

• Orange heavy rainfall and thunderstorm warnings (the middle level on a three-tier scale): Banat, Belgrade, Eastern Serbia, Pomoravlje, Southeast Serbia, Southwest Serbia, Sumadija, and Western Serbia regions in Serbia. 
• Yellow heavy rainfall and thunderstorm warnings: Across Kosovo and Srem region in Serbia. 

Orange heavy rainfall warnings are in place across western Serbia and yellow thunderstorm warnings across Kosovo and Serbia May 23, and yellow heavy rainfall and thunderstorm warnings are in place across the region May 24. Officials could update and extend the coverage of the 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 rain has saturated the soil.

Authorities could issue mandatory evacuation orders for flood-prone communities over the coming days. Adverse weather conditions could also cause power outages throughout the affected area.

The severe weather could contribute to transport disruptions throughout the region. Traffic and commercial trucking delays might occur along regional highways. Strong winds might pose a hazard to high-profile vehicles. 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.

Severe weather could also trigger flight delays and cancellations at regional airports. Flooding could block regional rail lines; freight and passenger train delays and cancellations are possible in areas with heavy rainfall and potential track inundation.

Disruptions triggered by inclement weather and resultant hazards, such as flooding, could persist well after conditions have improved—it could take days before floodwaters recede and/or officials clear debris. Repair or reconstruction efforts may result in residual disruptions if there is severe damage to infrastructure.