Severe Weather and Hail Suppression Controversy Hit Mendoza

Mendoza experienced a turbulent weather pattern featuring morning rains, isolated thunderstorms, and strong southern winds, while meteorological authorities reported conditions improving by the afternoon. The regional weather service registered minimum temperatures around 14°C to 16°C alongside maximums reaching 27°C to 29°C. Precipitation varied across Greater Mendoza, the Uco Valley, and southern sectors, where radars tracked moderate to intense showers and potential small hail in areas such as Luján de Cuyo, Guaymallén, and Maipú.

The atmospheric instability brought precipitation accumulation that, according to National Water Institute records, surpassed historical monthly averages compared to previous decades. Mountainous zones in the northern and central cordillera also encountered ongoing snow conditions. Forecasts for the following days indicate rising temperatures, with expected highs reaching 32°C on Wednesday and climbing to 34°C by Thursday, accompanied by moderate northerly winds before a potential cool down later in the week.

Amid the changing weather conditions, Mendoza's long-standing hail suppression program has returned to the center of public debate. Environmental groups and specialists have raised concerns regarding geoengineering and artificial weather modification techniques, which have been utilized in the region for decades. Critics argue that introducing chemical compounds into storm clouds can produce unintended environmental consequences and potentially intensify severe storm phenomena.

The controversy involves historical anti-hail operations that utilize aircraft equipped with radar devices and silver iodide flares to intervene in cloud formations. Supporters of these programs emphasize their preventative purpose, noting that introducing ice-like structures aims to increase the number of small ice crystals and reduce large hail damage on valuable agricultural zones. However, environmental advocates question the overall efficacy of these methods in mitigating destructive storms.

Local discussions regarding artificial intervention date back decades, supported by provincial legislation enacted in the late 1990s that established technical research programs for weather modification. The framework mandates continuous technical audits and scientific evaluations to assess the performance of these defense systems. Nevertheless, growing environmental scrutiny highlights ongoing debates over transparency, ecological impact, and the long-term viability of atmospheric manipulation technologies in the region.