It noted a rapid development into a strong El Nino event during July-September.
WMO Climate Scientist Alvaro Silva explained that confidence has grown regarding the strength of the developing conditions in the equatorial Pacific.
"We have much more confidence that strong El Nino conditions are developing in the equatorial Pacific," said Silva.
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He noted that further updates will be issued if the phenomenon intensifies into an even more severe classification.
"For example, if we have forecasts suggesting this will be a really strong El Nino," Silva said.
The scientist added that these environmental impacts will endure across multiple regions globally.
"The impacts of El Nino will be felt in different regions until the end of the year and beyond, also during 2027," underlined Silva.
WMO Chief Celeste Saulo stated that early warning support is being increased to protect vulnerable economic sectors like public health and agriculture.
"Such moves are vital to save lives and cushion the impact on our economies and our communities," said Saulo.
She warned that the climate event increases severe environmental risks across both land and marine environments.
"El Nino conditions are already under way and are forecast to strengthen rapidly into a strong event," she said.
The WMO chief concluded that changing pressure patterns will worsen extreme moisture fluctuations globally.
"This will intensify the chances of drought and heavy rainfall and the risk of heatwaves on land and marine heatwaves in many regions," she said.
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In response to these immediate climate threats, Peru has already declared a 60-day state of emergency across 800 municipalities due to imminent flooding and landslide risks affecting over 9.3 million citizens.
