Flood Alert: Nigeria Identifies 26 States at Risk of Flooding

Flood Risk Increases Across Nigeria as Heavy Rainfall Forecast Emerges

The Federal Government has issued a fresh flood alert for 26 states and the Federal Capital Territory (FCT), warning that heavy rainfall expected between June 22 and July 5, 2026, could trigger flooding in hundreds of communities across the country. The warning was issued by the Federal Ministry of Environment through the National Flood Early Warning Centre under the Erosion, Flood and Coastal Zone Management Department.

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According to the ministry, several communities have been classified as either critical-risk or high-risk flood zones as the rainy season intensifies. Authorities are urging residents, local governments and emergency response agencies to take preventive measures to minimise potential loss of life, damage to property and disruption to economic activities.

States and Communities Identified as High Risk

The ministry listed Abia, Adamawa, Akwa Ibom, Anambra, Bayelsa, Benue, Cross River, Delta, Ebonyi, Edo, Ekiti, Enugu, Imo, Kogi, Kwara, Lagos, Niger, Ogun, Ondo, Osun, Oyo and Rivers among states facing elevated flood risks, while parts of the FCT, Kebbi, Nasarawa, Plateau and Taraba were also placed under heightened monitoring.

Several major urban centres were identified as vulnerable, including Lagos, Ibadan, Abeokuta, Akure, Oshogbo, Port Harcourt, Makurdi, Lokoja, Yenagoa, Onitsha and Benin City. The ministry warned that low-lying communities, riverbank settlements and areas with inadequate drainage infrastructure face the greatest risk.

Authorities Call for Immediate Precautionary Measures

The Federal Ministry of Environment advised communities classified as critical-risk areas to maintain continuous flood monitoring, identify evacuation routes and avoid activities within floodplains and drainage corridors. Residents were also encouraged to safeguard vulnerable households and remain alert to weather updates.

For locations designated as high-risk, authorities recommended aggressive drainage clearance, monitoring of culverts and waterways and prompt reporting of unusual rainfall patterns or rising water levels.

Implications for Housing and Infrastructure

The warning carries significant implications for Nigeria's housing sector, particularly in flood-prone urban and peri-urban communities. Flood events often result in property damage, displacement of residents and deterioration of critical infrastructure such as roads, bridges, drainage systems and public utilities.

Housing experts have consistently highlighted the need for improved urban planning, stronger drainage networks and stricter enforcement of development regulations to reduce exposure to flood risks. As climate-related weather events become more frequent, flood resilience is increasingly becoming a central consideration in housing development and infrastructure investment.

Part of a Broader Flood Risk Outlook

The latest warning aligns with earlier projections from the Nigeria Hydrological Services Agency (NIHSA), which identified 33 states and the FCT as areas vulnerable to flooding during the 2026 rainy season. NIHSA's Annual Flood Outlook estimated that more than 14,000 communities nationwide face varying levels of flood risk this year.

Experts warn that urban flooding, flash floods and river overflow incidents could increase if heavy rainfall coincides with blocked drainage channels and unregulated development within flood-prone areas.

Outlook

With rainfall expected to intensify in the coming weeks, emergency management agencies are likely to increase monitoring and preparedness activities across vulnerable communities. State governments and local authorities are expected to work closely with federal agencies to reduce risks and coordinate response measures where necessary.

For residents and property owners, the warning serves as an important reminder to review flood preparedness plans, clear drainage systems and remain attentive to official advisories throughout the peak of the rainy season.

Conclusion

The Federal Government's latest flood alert underscores the growing importance of disaster preparedness as Nigeria enters the height of the rainy season. With 26 states and the FCT facing potential flooding risks, proactive measures by residents, developers, local authorities and emergency agencies will be critical to protecting lives, homes and infrastructure in the weeks ahead.

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