The Nigerian Meteorological Agency has issued a flash flood risk alert for 27 states, warning that heavier rainfall from July 1 to July 10, 2026, could trigger flooding in vulnerable communities across the country.
The agency said widespread rainfall recorded in June had already saturated the soil in many areas, reducing its capacity to absorb additional water as the peak rainy season begins.
NiMet said low lying communities, coastal settlements, urban centers and areas with poor drainage face heightened flood risk in the coming days.
The states listed as vulnerable are Taraba, Sokoto, Borno, Zamfara, Kebbi, Katsina, Kaduna, Nasarawa, Plateau, Adamawa, Kwara, Kogi, Oyo, Ogun, Lagos, Osun, Ekiti, Delta, Edo, Abia, Imo, Anambra, Enugu, Akwa Ibom, Cross River, Rivers and Bayelsa.
The agency warned that heavy rain could cause local flash floods in flood prone communities and densely populated cities.
It listed possible effects to include traffic congestion, road closures, disruption of transport services, temporary power and telecommunication outages, reduced visibility for motorists and aviation operators, waterlogged farmlands, crop losses and damage to roads, bridges, drains and other public infrastructure.
NiMet also cautioned that stagnant floodwater could increase the risk of waterborne diseases if affected communities fail to maintain proper sanitation.
Residents were advised to follow official forecasts and flood advisories, clear drains and waterways of refuse, secure loose outdoor objects and avoid walking or driving through flooded roads.
The agency said early preparation, public awareness and prompt response would be crucial to reducing the impact of flash flooding during the peak of the rainy season.
NiMet also called on State Emergency Management Agencies, the National Emergency Management Agency, local authorities, community leaders and other stakeholders to strengthen preparedness and response systems in high risk areas.
