The Federal Government, through the Nigerian Meteorological Agency (NiMet), has warned that 19 states across Nigeria may experience flash flooding following heavy early rains.

NiMet issued the advisory on Thursday, stating that dry and hardened soil surfaces could increase runoff and prevent rainwater from properly soaking into the ground.

19 states listed in NiMet advisory

The agency listed the affected states as Zamfara, Nasarawa, Kwara, Oyo, Lagos, Ogun, Ekiti, Delta, Imo, Anambra, Enugu, Ebonyi, Akwa Ibom, Cross River, Rivers, Edo, Ondo and Bayelsa.

According to NiMet, the weather condition may trigger flooded roads, traffic disruptions, destruction of homes and farmlands, as well as damage to public infrastructure.

The agency also warned of possible blocked drainage systems, power outages, telecommunication disruptions and increased risks of injuries and water-borne diseases.

Residents advised to stay alert

NiMet urged residents in vulnerable areas to clear blocked drainages and remain updated with weather and flood alerts.

Motorists and pedestrians were also warned against driving or walking through flooded roads and waterways.

“An informed community is a prepared community. Know the risks and act early,” the agency stated.

FG had earlier raised nationwide flood concerns

The latest advisory comes weeks after the Federal Government warned that over 14,000 communities across 33 states and the Federal Capital Territory could face severe flooding in 2026.

The earlier flood-risk alert included states such as Lagos, Rivers, Kogi, Benue, Bayelsa, Delta, Ogun, Ondo, Oyo and several others across the country.

Authorities have now called on emergency agencies, state governments and relevant stakeholders to strengthen preparedness and response measures ahead of peak rainfall periods.