El Niño Forecasts Trigger Weather Alerts Across South America

Meteorological agencies are warning of significant weather disruptions across South America through the end of the year due to an intense El Niño event. In Brazil, a joint bulletin from federal monitoring agencies indicates a sharp contrast between regions for the spring period of September through November. The South of Brazil is facing a high probability of above average rainfall and extreme precipitation events, which may lead to floods and landslides. Conversely, the Northeast is expected to experience below average rainfall and high temperatures, increasing water deficits and the risk of fires. The Center West and Amazon regions also face elevated fire risks.

In Argentina, the phenomenon is described as a Super Niño that began in early August and is expected to last until at least October. Forecasts indicate a high probability of stronger than normal rains in provinces such as Misiones, Corrientes, Formosa, Chaco, and Santa Fe. Some regions, including Mendoza and San Juan, may see increased snowfall, which could provide relief to a decade long water emergency in the Cuyo region. Experts suggest that global warming is exacerbating the intensity of this event compared to previous years.

While center leaning reports focus on the specific regional risks and the development of green artificial intelligence to predict local rainfall more efficiently, a center right report emphasizes the global scale of the Super Niño and its specific impact on Argentine infrastructure and water levels. One center leaning perspective further frames the climate crisis as a matter of social injustice, noting that extreme weather disproportionately affects marginalized populations in the Global South.