Japan declares arrival of El Niño as Pacific warms rapidly

Thursday 11 - 08:49

By: Dakir Madiha

Japan declares arrival of El Niño as Pacific warms rapidly

Japan has become the first major meteorological authority to officially confirm the arrival of El Niño, following a sharp rise in sea surface temperatures across the central and eastern equatorial Pacific. The announcement signals a rapid shift in ocean conditions that scientists associate with large-scale disruptions in global weather patterns, including droughts, floods and temperature extremes.

The declaration comes after weeks of accelerated warming in Pacific waters. International forecasting bodies had progressively raised the likelihood of an El Niño event over recent months. Early-year estimates placed the probability at low levels, but updated projections between late spring and early summer showed a steep increase, with several models now indicating a high probability that conditions will persist through the coming seasons. Forecast systems in the United States also point to a strong likelihood of continuation into the Northern Hemisphere winter of 2026 to 2027.

Additional assessments from academic climate research centers have reinforced the outlook, with some probability models suggesting near certainty of El Niño conditions during the May to July window. These projections reflect sustained warming anomalies in key monitoring zones of the Pacific, which are used as standard indicators for defining the phenomenon.

In Southeast Asia, authorities have already begun issuing alerts. The Philippine meteorological agency confirmed El Niño conditions after sea surface temperature anomalies crossed established thresholds in May. The agency warned that the event could align with the southwest monsoon season, increasing the risk of a so-called super El Niño between June and August, with peak intensity expected later in the year.

Agricultural systems are among the first sectors expected to feel pressure. Rice production forecasts in parts of Southeast Asia indicate potential declines, driven by prolonged dry spells linked to the warming pattern. Water scarcity concerns are also rising, prompting governments to activate drought preparedness plans, expand irrigation management strategies and strengthen crop insurance programs.

Scientists also warn of broader global consequences. El Niño events typically weaken trade winds across the Pacific, alter storm tracks and shift rainfall distribution across continents. These changes can intensify heatwaves in some regions while increasing flood risk in others, creating cascading effects on food security, infrastructure and energy demand worldwide.