The Nigerian Meteorological Agency (NiMet) has raised the alarm over possible flash flooding in 19 states and the Federal Capital Territory between September 21 and 30.
According to NiMet on Monday, the affected states are Sokoto, Kebbi, Borno, Adamawa, Taraba, Nasarawa, Benue, Kogi, Niger, Kwara, Oyo, Lagos, Anambra, Delta, Cross River, Akwa Ibom, Rivers and Bayelsa, alongside the FCT.
NiMet said the warning remained necessary despite the gradual reduction in rainfall in some parts of the country, stressing that heavy downpours within a short period could trigger sudden surface runoff and flooding.
The agency said areas with saturated soil, poor drainage, low lying terrain and proximity to rivers and waterways were particularly vulnerable.
Describing the outlook as an early-warning and decision support measure, NiMet urged communities, motorists, farmers and emergency authorities to take precautionary measures before severe weather events occur.
“An informed community is a prepared community. Early Warning, Early Action,” the agency stated.
NiMet warned that flash floods could result in road closures, traffic congestion, transport disruptions and reduced visibility, while also affecting electricity and telecommunications services.
It said farmlands could suffer waterlogging, with possible losses to crops and livestock, while stagnant floodwaters could increase the risk of waterborne diseases.
The agency advised motorists and pedestrians against attempting to cross flooded roads, bridges or fast-flowing water, urging residents to keep drainage channels and culverts free of debris.
Residents living in floodplains, riverbanks and poorly drained areas were advised to remain alert and move to safer locations when necessary.
NiMet also called on emergency management agencies to intensify surveillance and pre-position response teams in vulnerable communities.
Farmers were advised to improve drainage on their farms and relocate livestock, farm machinery and harvested produce from areas prone to flooding.
The agency stressed that communities outside the identified high risk areas should also remain weather-conscious, noting that flash flooding can occur rapidly following intense rainfall.
