Is El Nino Coming Soon?
A massive wall of warm water stretching nearly 1,000 kilometres across the tropical Pacific Ocean is drawing the attention of meteorologists worldwide. Scientists say the phenomenon could be an early sign of a powerful El Nino event taking shape later this year. While an official declaration is yet to be made, growing evidence from ocean and atmospheric observations has strengthened forecasts that El Nino could return by mid-2026, potentially influencing weather patterns across the globe, including India's crucial monsoon season.
Understanding the Emerging El Nino
El Nino is a naturally occurring climate phenomenon characterized by unusually warm sea-surface temperatures in the central and eastern Pacific Ocean. It alters global atmospheric circulation, affecting rainfall, temperatures, storms and droughts across different regions.
What is making scientists particularly attentive this year is the development of a massive Kelvin wave beneath the Pacific Ocean. This wave consists of unusually warm water moving eastward along the equator. In some deep-ocean regions, temperatures are reportedly up to 7°C above normal, creating conditions that often precede significant El Nino events.
Experts explain that strong bursts of westerly winds earlier this year helped push a deep reservoir of warm Pacific water toward South America, setting the stage for broader ocean warming. Sea-surface temperatures are already about 0.5°C above average, one of the key indicators used to monitor El Nino development.
Expert Views on the 1,000 km Warm-Water Build-Up
Climate scientists view the current warming pattern as a significant signal, though not yet definitive proof of a major El Nino. According to meteorological agencies, the interaction between the warming ocean and the atmosphere over the coming months will determine whether the event strengthens into a "Super El Nino."
Australia's Bureau of Meteorology has indicated a moderate-to-strong probability of El Nino emerging by June 2026. The US National Oceanic and Atmospheric Administration (NOAA) has also projected a high likelihood of El Nino conditions developing during the May-July period and persisting through the remainder of the year. Several climate models suggest warming could intensify significantly by late 2026, potentially rivaling some of the strongest El Nino episodes on record.
Experts caution, however, that official classification requires specific oceanic and atmospheric thresholds to be met. While conditions are moving in that direction, the final outcome will depend on developments during the next few months.
What Could It Mean for India?
For India, the prospect of a strong El Nino raises concerns because the phenomenon has historically been associated with weaker monsoon rainfall. The India Meteorological Department has already forecast a below-average monsoon for 2026, with the greatest impact expected during the latter part of the June-September season.
A weaker monsoon could affect agricultural productivity, water availability and rural incomes. Experts also warn of an increased likelihood of prolonged heatwaves and higher temperatures across several regions, potentially placing additional stress on crops and food supplies.
Global Weather Implications
The consequences of a strong El Nino extend far beyond South Asia. Such events can disrupt weather systems worldwide, contributing to droughts, floods, wildfires, hurricanes and extreme temperature anomalies.
Meteorologists note that the powerful El Nino episodes of 1997-98 and 2015-16 triggered significant climatic disruptions across continents. If current warming trends continue, similar global impacts could emerge during late 2026 and into 2027.
A Climate Signal the World Is Watching
The rapidly expanding warm-water mass in the Pacific has become one of the most closely watched climate developments of 2026. While scientists are not yet ready to officially declare El Nino, the signs are becoming increasingly difficult to ignore. For India and the rest of the world, the coming months will be critical. Whether the phenomenon evolves into a full-fledged Super El Nino or remains less intense, its potential influence on weather, agriculture and global temperatures makes it a climate event that policymakers, farmers and communities cannot afford to overlook.
(With agency inputs)
