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Extreme heat, storms, and water infrastructure crisis

Updated 39 times since CLSTR started tracking revisions of this situation.

What changed

2026-09-17 14:05 UTC → 2026-09-20 08:31 UTC · added ~~removed~~

Extreme heat, storms, and ~~drought intensify in Central andSE~~ water infrastructure crisis

The drought and extreme weather crisis across Central Europe and the Balkans has intensified, characterized by heatwaves, severe thunderstorms, and prolonged water scarcity. In Slovakia, experts warn that the drought has transitioned into a “new climate regime,” with extreme episodes more than doubling due to increased evaporation. Infrastructure failures are exacerbating the crisis. In ~~Slovakia,~~ the ~~crisis is compounded by failing infrastructure. The Supreme Audit Office reports that~~ Czech Republic, approximately ~~30 percent~~ one in seven liters of drinking water is lost ~~within piping networks due to aging systems,~~ before reaching consumers, with physical losses totaling 83.7 million cubic meters in 2025. The renewal rate is extremely slow, with only 0.41% of the network replaced annually, suggesting a full renewal would take over 240 years. In Slovakia, the Supreme Audit Office reports that modernization debt ~~exceeding~~ exceeds 10 billion ~~euros. Additionally, Greenpeace~~ euros, with infrastructure in some areas up to 70% worn out. While Slovakia ~~warns~~ has sufficient water capacity via the Žitný ostrov reservoir, Alena Trančíková of ~~rising food prices as soil moisture deficits worsen; in~~ Bratislavská vodárenská spoločnosť warns that the ~~Nitra region, usable soil water has plummeted~~ nation lacks the infrastructure to ~~7.5 percent. Regional studies indicate that available~~ distribute water ~~for plants dropped from 94 percent in March~~ to ~~just 15.6 percent by early August.~~ drier regions like eastern Slovakia. Environmental protection also remains a concern. Trančíková noted that while groundwater protection legislation is high-quality, enforcement is problematic, specifically citing agricultural runoff on Žitný ostrov as a major pollution source. Extreme heatwaves have also triggered a significant health crisis across Europe, resulting in more than 35,000 excess deaths. During a critical week in late June, over 20,000 deaths were recorded due to heatstroke and dehydration. The highest mortality rates occurred in Germany (14,000), France (7,300), Spain (4,400), and Italy (2,700). Agricultural impacts remain ~~severe. In Slovenia, corn yields in Ihan are projected to drop by 80 percent, while grape yields may decrease by 40 percent. Potato production in Slovenia is also facing a crisis,~~ severe, with ~~estimated harvest~~ significant yield losses ~~between 30 and 90 percent. In~~ reported in Slovenia, Bosnia and Herzegovina, ~~farmers report “catastrophic” soybean yields. In the Neretva Valley, extreme temperatures threaten mandarin harvests,~~ and ~~in Croatia, the drought has been declared a natural disaster in Vukovar-Srijem County, impacting sugar beet crops.~~ Croatia.

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