A severe snowstorm in the Argentine provinces of Mendoza and Catamarca forced the closure of the Cristo Redentor international pass this week [1].

The event disrupts one of the primary transit arteries between Argentina and Chile, complicating regional logistics and endangering residents in high-altitude Andean zones.

Authorities said snow accumulation exceeded four meters in Mendoza [1]. The intensity of the storm created hazardous conditions that necessitated the evacuation of more than 50 inhabitants [1]. Emergency crews worked to move residents from affected areas as the heavy snowfall made roads impassable.

The Cristo Redentor international pass remains closed [1]. This mountain pass serves as a critical link for trade and travel, and its closure halts the flow of goods and people across the border.

Meteorologist Matías Bertolotti said the El Niño phenomenon is favoring an excess of snow in the region [1]. The atmospheric patterns associated with El Niño often shift precipitation levels in the Andes, leading to the extraordinary accumulation seen in Mendoza and Catamarca.

Local officials continue to monitor the weather patterns to determine when it will be safe to reopen the pass. The evacuation efforts focused on the most vulnerable sectors of the population to prevent casualties during the peak of the storm [1].

Snow accumulation exceeded four meters in Mendoza

The closure of the Cristo Redentor pass combined with extreme snowfall highlights the vulnerability of Andean infrastructure to climate oscillations. Because El Niño can trigger anomalous weather patterns, the region may face prolonged logistical disruptions and increased pressure on emergency services to manage evacuations in remote mountain communities.