Key facts
- An El Nino has officially formed in the Pacific Ocean, confirmed by U.S. meteorologists.
- The phenomenon is expected to reach historic strength and intensify extreme weather globally.
- NOAA projects a 63% chance of a historically large El Nino event by late fall/early winter.
- El Nino's impacts vary regionally, potentially causing floods in South America, heatwaves in India, and droughts in Australia.
- The U.S. agriculture industry may benefit from El Nino conditions, though overall economic growth could be dampened by higher temperatures.
An El Nino has officially formed in the Pacific Ocean, with meteorologists warning that it is poised to reach historic strength and intensify extreme weather events globally. The U.S. National Oceanic and Atmospheric Administration (NOAA) confirmed the existence of the phenomenon, a natural warming of the Pacific near the equator that profoundly affects global weather patterns.
NOAA projects a 63% likelihood that this El Nino will become so intense by late fall and early winter that it would rank among the largest El Nino events in the historical record going back to 1950. Climate scientists explain that the warm, deep waters of an El Nino introduce significant extra heat to the surface, fueling extreme events worldwide. United Nations Secretary-General António Guterres described El Nino as an "urgent climate warning," stating that it will "pour fuel on the fire of a warming world."
The impacts of El Nino vary by region. It often dampens Atlantic hurricane season activity but increases it in the Pacific, potentially offering a break to the U.S. East and Gulf coasts while posing greater danger to Hawaii and other islands. Drought-stricken regions like the Middle East could benefit, while parts of western South America may experience heavy rain and floods. India faces more intense heatwaves, and Australia is threatened by drought and wildfires. Northeastern Africa could experience severe weather whiplash, shifting from intense drought to dangerously heavy rains.
In the U.S., El Ninos can cause more intense storms with heavier rainfall in the South and tend to benefit the agriculture industry, particularly for grains and soybeans. However, overall temperatures raised by the weather pattern can dampen American economic growth, as U.S. economic growth tends to slow when temperatures are above normal. Some climate scientists forecast that 2027 will be the hottest year on record due to the lagging effects of this El Nino, which is expected to peak in the fall or winter.