The latest El Nino warning from the United Nations is about as blunt as weather science gets. On Wednesday the World Meteorological Organization said the current El Nino could be unprecedented in strength, "literally off the monitoring charts" used for the past four decades, according to UN News.

What the forecasters are actually saying

The WMO released a new Global Seasonal Climate Update that forecasts tropical Pacific sea surface temperatures could climb to three point eight degrees Celsius above average between November and January. For context, the agency declares an El Nino once those waters hit just half a degree above normal. So this El Nino warning is not a small nudge, it is a flashing red light.

WMO Secretary-General Celeste Saulo told journalists in Geneva that the event will peak toward the end of the year, but that its impacts will be felt long after that. She said the outlook should help humanitarian groups act before the worst arrives, according to the WMO.

US forecasters were already worried. The Climate Prediction Center said in early October that El Nino continued to strengthen, with a strong to very strong event likely through the start of next year, and an eighty-three percent chance of a record-level three-month reading for October through December.

Why a Pacific heat blob hits your whole planet

El Nino is one phase of a natural cycle called the El Nino Southern Oscillation. Warm water pools across the central and eastern Pacific, and that shoves rain and heat patterns around like furniture in a tiny apartment. Some regions get drought, some get floods, and some get storms that would normally pass them by.

The Hindu, citing PTI, reported that Saulo described extreme weather events already unfolding that are expected to multiply and cascade as the event intensifies. Climate scientists also tend to note that El Nino years add extra heat on top of long-term warming, which is why record global temperatures often follow.

The humanitarian price tag

Tom Fletcher, the UN emergency relief chief, did not hold back. He called this El Nino a behemoth and a wrecking ball that will tear through Latin America, eastern and southern Africa, Asia and the Pacific with extreme heat, droughts and floods, and said fifty million people could face increased hunger, according to UN News.

He cited African Development Bank estimates that the event will cost African countries between ten and twenty billion dollars, shaving between one and two percent off their economic output. The next two weeks, Fletcher said, are critical to avert a worsening crisis.

The priorities are specific. Somalia, Ethiopia and Kenya need funding and emergency supplies in place before heavy rains land. In southern Africa the focus is delivering seeds and protecting livestock, while Central America needs help protecting livelihoods right now.

What it could mean closer to home

Britain's Independent reported that the event could raise the odds of cold snaps and a wetter, stormier winter in the United Kingdom. Other regions face their own versions, from smoky skies to flooded streets. If you have been seeing wild weather in your feed lately, this is part of the backdrop.

There is a bigger climate story too. A separate UN Environment Programme report said global warming is set to pass one point five degrees, though deep and fast emission cuts could still bring temperatures back down later this century. Follow more on our climate emergency coverage.

Scientists add that El Nino is not new, since the cycle has repeated for centuries, but what worries them is the scale. When the baseline is already warmer thanks to human-made emissions, a monster El Nino lands on top of a hotter world, and that is how records fall quickly. Check our world news for follow-ups as aid groups respond.

What to watch next

Expect more agencies to publish funding appeals, and watch how quickly donors respond during that two-week window. Forecasters will also keep updating peak estimates through December. The takeaway from this El Nino warning is simple: the science is loud, and the cost of waiting falls hardest on people who did the least to cause it.

For Gen Z, who will live with the long-term climate trend, it is a preview of how stacked natural cycles and human-made warming can collide. Staying informed, and pushing leaders to fund early action, is a lot cheaper than cleaning up afterward.