The U.S. National Oceanic and Atmospheric Administration (NOAA) issued an alert regarding the high probability of the El Niño phenomenon developing this year [1].
This forecast is critical because El Niño disrupts global weather patterns, often leading to flooding and temperature extremes that threaten infrastructure and agriculture.
According to NOAA, the probability of El Niño forming by July 2026 has risen to 82% [2]. This figure represents an increase of 20 percentage points compared to previous forecasts [2]. The agency said the phenomenon could lead to severe weather impacts, specifically excessive rainfall in southern Brazil [1, 2].
Regional governments in Brazil are already taking precautions. The state of Santa Catarina has decreed a climate alert [3]. This decree is set to last for 180 days to prepare for the anticipated environmental impacts [3]. Local authorities in Rio Grande do Sul are also on high alert due to the risk of heavy rains [2].
Experts said the current El Niño event is being intensified by ongoing climate change [1]. This synergy between natural cycles and global warming is leading to higher temperatures and increased risks of extreme weather [1, 4]. Projections suggest that 2026 will be among the warmest years ever recorded [4].
The Pacific Ocean region remains the primary area of monitoring, as the warming of surface waters there drives the atmospheric changes felt across the globe [2, 3].
“The probability of El Niño forming by July 2026 has risen to 82%.”
The convergence of a strong El Niño cycle with long-term climate change creates a 'compounding effect,' where natural weather variability is amplified by a warming planet. For regions like southern Brazil, this means that traditional seasonal rain patterns are more likely to result in extreme flooding, requiring governments to shift from reactive disaster response to long-term preventative decrees.
