Kosovo, Serbia: Adverse weather forecast across the region through at least May 4

Heavy rainfall and thunderstorms are forecast across Kosovo and Serbia through at least May 4. The heaviest rainfall is expected in northern parts of Serbia early May 3. Storms are most likely across southern parts of the region and may be accompanied by strong wind gusts, lightning, and hail.

The Republic Hydrometeorological Service of Serbia issued the following weather warnings across the affected area May 3:

• Orange heavy rainfall warnings (the middle level on a three-tier scale): Serbia's Backa, Belgrade, and Srem regions.
• Yellow heavy rainfall warnings: Across Kosovo and the rest of Serbia.
• Yellow thunderstorm warnings: Across Kosovo and Southeast and Southwestern regions in Serbia.

Further yellow thunderstorm warnings are in place across Kosovo and parts of eastern and southern Serbia May 4. 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. The adverse weather conditions could 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.