UN agencies appeal for help to protect weakest nations from super El Niño

El Niño is a recurring weather pattern in which surface waters warm across the central and eastern equatorial Pacific Ocean. This warming alters winds, air pressure and rainfall patterns around the world. It usually occurs every two to seven years and lasts about nine to twelve months. Its effects can include extreme heat, floods and droughts.

This event is called a “super El Niño” because central Pacific sea-surface temperatures are more than two degrees Celsius above normal. The World Meteorological Organization says the current event could be unprecedented in strength, possibly beyond monitoring charts used during the past four decades. That makes its expected effects especially serious.

The event is due to peak in December, but its human impact may continue into 2027 and beyond. UN agencies expect extreme weather to multiply and cascade as El Niño intensifies. They are urging early action because vulnerable communities already face conflict, displacement, high prices and reduced aid.

The humanitarian impact could be enormous because El Niño is adding extreme weather to existing crises. UN officials warned that tens of millions of people could be pushed into humanitarian need, with 50 million facing increased hunger. Vulnerable communities already have limited ability to absorb another shock.

The risks differ by place. Heavy rains can damage homes, farms and supplies, while droughts can reduce water, crops and livestock. Conflict, displacement, expensive fuel, fertiliser and food, and international aid cuts are already weakening countries’ response capacity. El Niño could therefore deepen shortages rather than create a single, isolated emergency.

The consequences may spread globally. Tom Fletcher said the system could drive further conflict, displacement and migration and create economic shocks for the global economy. He warned that the humanitarian system cannot cope alone with a threat on this scale. Early funding and coordinated preparation are intended to reduce the number of people needing emergency help.

The expected effects vary across regions because El Niño changes rainfall patterns worldwide. Somalia, Ethiopia and Kenya need supplies before heavy rains arrive. Southern Africa needs seeds and livestock support. Central America needs assistance to protect livelihoods. These preparations target communities that may struggle to recover from another shock.

Asia and the Pacific must prepare for a combination of droughts, floods and cyclones. The article does not identify every affected country or explain the exact local weather pathway. It does show that the same climate pattern can produce sharply different hazards, depending on the region.

The danger is not limited to places directly hit by extreme weather. The UN aid chief warned that resulting economic shocks could affect the global economy and drive conflict, displacement and migration. The event is expected to peak in December, so officials describe the present as a critical window for moving supplies and funding.

UN agencies are asking governments, development banks and international financial institutions to act before damage occurs. Their approach is called urgent and coordinated anticipatory action. It means strengthening vulnerable communities before heavy rains, droughts, floods and other hazards create larger humanitarian emergencies.

The planned support is specific to local needs. Somalia, Ethiopia and Kenya need supplies before heavy rains. Southern Africa needs seeds and livestock. Central America needs livelihood assistance, while Asia and the Pacific must prepare for droughts, floods and cyclones. Tom Fletcher has released $50 million to help 11 frontline countries, including Chad, El Salvador, Ethiopia, Somalia and South Sudan.

The UN says the next two weeks are the critical window to act. Celeste Saulo said El Niño cannot be stopped, but many of its worst human consequences can be prevented. Fletcher also called for money to move before damage is done, warning that the humanitarian system cannot manage the threat alone.

If vulnerable countries cannot prepare, extreme weather could worsen food insecurity and humanitarian need. The article warns that 50 million people could face increased hunger. Existing conflict, displacement, high fuel, fertiliser and food prices, and international aid cuts would make recovery harder.

The mechanism is a crisis layered on top of other crises. Droughts can threaten livelihoods, while floods and heavy rains can damage supplies and communities. Losses and shortages may increase pressure on families and governments. Fletcher described this as “crisis on crisis and crisis,” rather than a single temporary weather event.

The effects could spread beyond frontline countries. Fletcher warned of economic shocks for the global economy and further conflict, displacement and migration. He said countries, development banks and international financial institutions must move money before damage occurs. Without wider support, the humanitarian system alone cannot cope with a threat of this scale.

El Niño itself usually lasts around nine to twelve months, but the damage it causes can continue after the weather pattern peaks. The article says the event is due to peak in December, while its human impact from extreme temperatures, floods and droughts may last into 2027 and beyond.

The main reason given is accumulated damage. El Niño is arriving alongside widespread conflict and displacement, soaring fuel, fertiliser and food prices, and international aid cuts. These pressures weaken countries’ ability to respond. When one crisis is layered onto another, recovery can take months or years rather than ending when rainfall or temperatures change.

The continuing effects may include hunger, economic shocks, conflict, displacement and migration. Tom Fletcher said the long-term impact would be felt for months and potentially years. That is why UN agencies are urging early action, supplies and funding before the worst effects arrive, rather than waiting for the December peak.

El Niño begins with warmer surface temperatures in the central and eastern equatorial Pacific Ocean. According to the article, this warming brings worldwide changes in winds, pressure and rainfall patterns. Those changes help explain why El Niño can produce different hazards in distant regions, including droughts, floods, heavy rains and cyclones.

The article does not provide a detailed physical explanation of how the ocean warming rearranges atmospheric circulation. It does establish the key connection: warmer Pacific waters affect winds and pressure, and these changes alter where and how much rain falls. The result is a global pattern of weather disruption rather than a local Pacific event.

That global reach matters because communities face different risks at the same time. East Africa may need supplies before heavy rains, while Asia and the Pacific prepare for droughts, floods and cyclones. As the event intensifies, the World Meteorological Organization expects extreme weather to multiply and cascade.