A severe thunderstorm with hail and strong wind gusts struck the province of Buenos Aires on Tuesday night, May 25, 2026 [1, 2].

The storm caused significant material damage across several localities, highlighting the vulnerability of regional infrastructure to sudden, intense weather events.

According to the Servicio Meteorológico Nacional (SMN), the agency had issued alerts for intermittent storms, intense electrical activity, and strong wind gusts before the weather materialized [1]. The storm system hit multiple areas, including the north of Gran Buenos Aires, specifically the area of Guernica [2, 3].

Reports indicate the tempest brought heavy rain and hail that led to fallen trees and structural failures [1, 3]. In Benito Juárez, the wind and rain were severe enough to cause the roof of a hospital to collapse [4]. Similar conditions were reported in El Soberbio, where a strong storm with hail impacted the area [5].

Local residents and authorities documented the aftermath of the storm, which left a trail of material destruction across the center and south of the province [1, 4]. The SMN's warnings had cautioned of the potential for these severe conditions, which ultimately resulted in the widespread damage observed in the affected municipalities [1].

Emergency services responded to the various reports of roof collapses and blocked roads caused by fallen timber [1, 3]. While the SMN provided the necessary alerts, the intensity of the hail in regions like Guernica caused immediate disruption to local transit and property [2, 3].

The storm system hit multiple areas, including the north of Gran Buenos Aires.

The occurrence of severe hailstorms and structural failures, such as the hospital roof collapse in Benito Juárez, underscores the increasing pressure on Argentine public infrastructure to withstand extreme weather. The alignment between the SMN's alerts and the resulting damage suggests that while forecasting is accurate, the physical resilience of buildings in the Buenos Aires province remains a critical point of failure during high-intensity electrical storms.