The World Meteorological Organization issued an urgent warning on Tuesday that El Nino has returned, threatening extreme weather across Africa that could derail development progress for years. The UN agency confirmed the weather pattern developed weeks ahead of typical timing, exposing millions in East and Southern Africa to devastating floods and drought within months.
The announcement came amid fresh data showing global temperatures hit record levels in June, creating conditions that amplify El Nino's impact. Meteorologists at the Geneva-based WMO traced the pattern's formation to a patch of warming ocean in the central Pacific, where sea surface temperatures surged 1.5 degrees Celsius above average in recent weeks.
UN Agency Confirms Early El Nino Formation
Secretary-General Petteri Taalas told reporters in Geneva that the timing poses serious risks for agriculture seasons already underway across the continent. "Countries in the Horn of Africa have barely recovered from three consecutive failed rainy seasons," he said. "An early El Nino means the next rains could arrive with destructive force rather than relief."
The WMO forecasts the pattern will strengthen through August and peak between October and February, coinciding with critical planting and harvest periods across Sub-Saharan Africa. The agency released probability models showing a 90 percent chance that moderate to strong El Nino conditions persist through the first quarter of next year.
Regions Facing Immediate Threat
Aid agencies warn the timing could not be worse for pastoral communities in Kenya, Ethiopia, and Somalia where livestock populations remain depleted from recent droughts. The Kenya Meteorological Department has already begun distributing early warning advisories to county governments, preparing evacuation routes in low-lying areas near the Tana River and Lake Victoria basin.
In Tanzania, the Ministry of Water and Irrigation activated emergency protocols after forecasting above-normal rainfall for the October-December season. Officials in Dodoma are coordinating with the World Food Programme to pre-position food stocks in districts that typically flood during El Nino years.
The pattern's effects will likely extend southward. South Africa's Weather Service predicts reduced maize yields in Limpopo and Mpumalanga provinces, reversing recent bumper harvests that helped stabilize food prices. Mozambique, still recovering from Cyclone Freddy damage earlier this year, faces renewed flooding risk along the Zambezi River basin where millions live in flood-prone zones.
Why This El Nino Differs From Previous Cycles
Climate scientists emphasize that this cycle developed against a backdrop of already-elevated baseline temperatures, meaning rainfall events will likely exceed historical records. The Indian Ocean Dipole, another climate driver affecting East Africa, remains in a negative phase that compounds flood risks during El Nino years.
Researchers at the International Crops Research Institute for the Semi-Arid Tropics in Hyderabad have modeled crop losses across Eastern and Southern Africa, projecting a 30 percent reduction in sorghum and millet production if heavy rains arrive during harvest windows. Those staples form the backbone of food security for over 200 million people in the region.
Infrastructure and Development Goals at Risk
The African Development Bank has flagged El Nino as a significant threat to its 2023-2032 strategic priorities, particularly goals related to food security and climate resilience. Bank officials note that previous El Nino events cost the continent an estimated $4.2 billion in agricultural losses, infrastructure damage, and emergency response operations.
Transport infrastructure across East Africa remains vulnerable. Road networks connecting Nairobi to Mombasa and Addis Ababa to Djibouti traverse regions that experienced severe erosion during the 2015-2016 El Nino, when entire sections of highway collapsed. Recovery costs strained national budgets already stretched by debt service obligations.
Power infrastructure faces parallel risks. The Kariba Dam, which supplies electricity to Zimbabwe and Zambia, saw water levels drop critically during the 2015-2016 El Nino. Hydropower generation accounts for over 60 percent of electricity in both countries, and reduced generation would squeeze industrial output during a period when economic growth already lags behind population expansion.
International Response Mechanisms Activate
The UN Office for the Coordination of Humanitarian Affairs launched an early funding appeal on Monday, requesting $1.1 billion to pre-position relief supplies and support national disaster management agencies. OCHA's regional office in Nairobi is coordinating with the African Union's Disaster Response Mechanism to ensure rapid deployment capabilities exist before the October rains begin.
The African Union's Department of Health has issued epidemiological alerts to border health ministries, noting that flooding typically triggers cholera outbreaks in countries with compromised water and sanitation infrastructure. Somalia, South Sudan, and Mozambique rank highest on surveillance priority lists given ongoing humanitarian crises in each nation.
Donor governments including the United Kingdom and Germany have signaled willingness to support early response efforts, though humanitarian advocates warn that competing priorities in Ukraine and other crisis zones could limit available funding. The United Nations Central Emergency Response Fund has released $40 million in initial allocations, but officials say significantly more resources will be required.
What African Nations Must Do Now
Meteorological departments across the continent face pressure to improve seasonal forecasting accuracy, particularly in countries where farmers lack access to reliable weather information. The WMO has committed to providing enhanced technical support to national weather services in 12 African countries over the coming months.
Regional economic communities are also mobilizing. The East African Community secretariat convened an emergency meeting of national disaster management directors last week, establishing a coordination framework for cross-border information sharing and mutual aid agreements. The Intergovernmental Authority on Development has issued similar protocols for the Horn of Africa region.
Agricultural extension services in Kenya, Tanzania, and Uganda are scaling up farmer training on climate-smart practices that reduce crop losses during excessive rainfall. The Food and Agriculture Organization has deployed specialists to work alongside government extension workers in counties identified as high-risk for flooding.
Looking Ahead to October
The next critical window arrives in six weeks when the short rains season traditionally begins in East Africa. Meteorologists will watch sea surface temperature trends closely during August and September for signs of how the El Nino pattern is evolving.
What happens next carries enormous consequences. If forecasts prove accurate, humanitarian organizations warn of potential displacement affecting up to 2 million people across the region. Agricultural losses could push food inflation rates above 20 percent in countries already struggling with currency weakness and fiscal constraints.
The international community will evaluate its response effectiveness during this period, with lessons learned shaping how the world prepares for future climate extremes. For millions of African families already living on the edge, the difference between adequate preparation and catastrophe may depend on decisions made in the coming weeks by governments, aid agencies, and donor governments alike.
