El Nino Update: El Nino has already begun showing signs of changing weather patterns in different parts of the world. As it intensifies, NASA is closely tracking the climate phenomenon through satellites, describing it as “a phenomenon rarer than a solar eclipse”. The World Meteorological Organisation (WMO) has warned that El Nino will strengthen by December, raising concerns over its impact in several regions, including India.

El Nino Brings Unusual Weather Changes

The effects of unusual weather have been reported in different parts of the world. In Chile, heavy rainfall in September brought millions of flowers into bloom across the Atacama Desert, one of the driest places on Earth. In Japan, Tokyo experienced an unusually wet September, receiving nearly three times its normal rainfall. These events have drawn attention as scientists monitor the developing El Nino conditions.

NASA Satellites' Observation

According to NASA, its satellites have been tracking changes in ocean temperatures and sea levels to understand how El Nino is developing. In January 2026, scientists spotted a large wave of warm water, known as a Kelvin wave, in the western Pacific near Micronesia. It noted that this warm water had moved towards the eastern Pacific by early April. This movement raised sea levels in some areas by around 30 to 40 centimetres.

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The October tracking reveals that the event could become one of the strongest El Nino episodes in decades. NASA’s report also cited the National Oceanic and Atmospheric Administration (NOAA) estimate of an 83 per cent chance of the strongest El Nino since 1950.

India Braces For El Nino Impact

Meanwhile, India is also preparing for the possible effects of a stronger El Nino, as it can impact the northeast monsoon season which brings rainfall to southern states. The impact, however, may vary across regions, with some areas facing rainfall shortages while others could experience heavy rain.

Tamil Nadu is among the states watching the situation closely. Earlier in August, Tamil Nadu Agriculture Minister R Vinoth told the Assembly that forecasts suggest 12 districts could be more affected by the super El Nino event. He also said the state was stepping up preparations by implementing the action plan drawn up by Tamil Nadu Agricultural University.

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