What's happening: El Niño in Brazil
The National Institute of Meteorology (INMET) recently released an update on the projections for El Niño in Brazil, indicating that the phenomenon is expected to persist until the beginning of 2027, with a high chance of reaching very strong intensity between spring and summer. This means that the next few months are expected to be marked by a strong incidence of El Niño in the national climate.
The effects of El Niño will be felt in different ways across the country. In the South, the risk is of greater occurrence and intensity of rains and storms. The North, Midwest, Northeast, and Southeast regions are expected to suffer from prolonged droughts. Additionally, heatwaves are expected to occur in almost the entire country over the next few months, with low air humidity and a higher risk of forest fires.
Why it matters: Impacts of El Niño in Brazil
El Niño has significant implications for the Brazilian climate and society. The combination of drought and higher temperatures can further pressure water conditions and accelerate soil moisture loss, affecting agriculture and water availability. Additionally, the increased risk of forest fires and wildfires is a significant concern, especially in the Amazon region.
Drought will also be felt with some intensity in the Southeast, where 76% of the region was under some level of drought in June. The situation may worsen if the next rainy season is delayed or has below-average rainfall volumes.
The mechanism behind El Niño: Science behind the phenomenon
El Niño is a natural phenomenon that occurs when the surface temperature of the sea in the Central-Eastern Equatorial Pacific increases above average. This can have significant effects on the global climate, including changes in rainfall and temperature patterns.
According to the Oceanic Niño Index (ONI), the temperature anomaly in the sea surface in the Niño 3.4 region reached +2.3°C, a value that indicates a very strong El Niño. By the Relative Oceanic Niño Index (RONI), the anomaly is +1.5°C, the minimum value for the strong intensity category.
Broad context: El Niño in historical perspective
El Niño is not a new phenomenon, but the intensity and frequency with which it occurs have increased in recent years. This can be related to global climate change, which is altering atmospheric and oceanic circulation patterns.
It is essential to note that El Niño can have significant effects on the economy and society, especially in vulnerable regions. Preparation and adaptation are fundamental to mitigating the impacts of the phenomenon.
What's next: Implications and challenges
The next few months will be crucial to understanding how El Niño will develop and what the main impacts will be in Brazil. It is essential that authorities and the population are prepared to face the challenges that the phenomenon may bring.
Additionally, it is crucial that measures are implemented to mitigate the effects of El Niño, such as water conservation, forest fire prevention, and adaptation of agriculture to the new climate conditions.
Source / Reference
This article was based on information released by the National Institute of Meteorology (INMET) and other sources, including ClimaInfo.