The Nigerian Meteorological Agency (NiMet) has raised concerns over the likelihood of flash flooding in several parts of the country during the first 10 days of July, warning that persistent rainfall could leave many communities vulnerable.
The agency said the alert covers the period from July 1 to July 10, noting that the onset of the peak rainy season, combined with already saturated ground conditions, has significantly increased the risk of flooding.
In an advisory released on Sunday, NiMet explained that the widespread rainfall recorded in June has left the soil unable to absorb much more water.
“Following widespread rainfall recorded across many parts of Nigeria in June, soils have become heavily saturated, reducing their ability to absorb additional rainfall.
“As July marks the beginning of the peak rainy season, the risk of flash flooding is expected to increase, particularly in low-lying, urban, coastal, and poorly drained areas,” the statement said.
According to the agency, the states most likely to be affected 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.
NiMet warned that intense rainfall could disrupt daily activities and essential services. It said flooding may obstruct major roads, slow movement of people and goods, and lead to traffic congestion in affected areas.
The agency added that interruptions to electricity supply and telecommunications services could occur, while reduced visibility during heavy downpours may create hazards for motorists and aviation operations.
Agriculture and public infrastructure are also expected to face pressure if the forecast materialises. NiMet said prolonged rainfall could leave farmlands waterlogged, resulting in crop losses, while roads, bridges, drainage systems and other public assets may sustain damage.
The weather agency also expressed concern about the possibility of outbreaks of waterborne diseases, urging health authorities to remain alert as stagnant floodwater and poor sanitation could increase public health risks.
To reduce the impact of the expected flooding, NiMet advised residents and emergency personnel to act promptly.
The agency urged Nigerians to: “Follow weather forecasts and flash flood advisories issued by NiMet; keep drains, gutters, and waterways free of refuse to ensure the free flow of water.
“Also, it said it should secure loose outdoor objects and reinforce vulnerable structures; and avoid walking or driving through floodwaters.”
NiMet further called on emergency management agencies and community leaders to strengthen preparedness ahead of any flooding.
It stated: “SEMAs, NEMA, community leaders, and relevant stakeholders should strengthen preparedness and response measures.”
The agency maintained that advance planning remains the best defence against the destructive effects of flash floods.
“Early preparedness and timely action remain essential in reducing the impacts of flash flooding,” it added.
Ending the advisory, NiMet appealed for public vigilance and collective responsibility.
“An informed community is a prepared community. Know the risks and Act Early.”