NiMet warns 27 states of flash flood risk as heavy rains threaten Nigeria

The Nigerian Meteorological Agency (NiMet) has issued a warning of an impending flash-flood risk across 27 states in the first 10 days of July, noting that without active intervention, torrential rainfall could lead to worse flooding than already seen.

NiMet pinned the risk on persistent rainfall capable of triggering intense flooding in 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 States.

The meteorological agency noted that as Africa’s most populous nation enters the peak of the rainy season, which usually begins in April and continues through October, there is a heightened likelihood that flood-prone states will experience flooding worse than last year, particularly as current rainfall has left soils unable to absorb precipitation.

“Following widespread rainfall recorded across many parts of Nigeria in June, soils have become heavily saturated, reducing their ability to absorb additional rainfall,” NiMet wrote in an advisory statement.

In Lagos, many homes and businesses have experienced flooding that has left buildings deep-sunk in dirty water and commuters stranded in jam-locked traffic.

NiMet warned that the anticipated heavy rainfall between July 1 and 10 could have far-reaching consequences across sectors of the economy, including transportation, public utilities, agriculture, infrastructure, and public health.

It noted that heavy rainfall could also “trigger localised flooding, resulting in traffic gridlock, road closures and disruptions to transportation.”

The meteorological agency also cautioned that “temporary power and telecommunications outages may occur in affected areas, while poor visibility during intense rainfall could pose risks to motorists and aviation operations.”

The forecast further highlighted the potential for waterlogging of farmlands, with possible crop losses, as well as damage to roads, bridges, drainage infrastructure and other public facilities.

Health officials were also urged to remain vigilant over the increased risk of waterborne diseases associated with stagnant floodwaters and poor sanitation.

Action for every Nigerian

To minimise the impact of the expected flooding, NiMet urged residents and emergency responders to take preventive measures without delay.

The agency advised 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.”

It further urged Nigerians to secure loose outdoor objects, reinforce vulnerable structures and avoid walking or driving through floodwaters.

The meteorological agency also called on communities to be vigilant, noting that “an informed community is a prepared community” and that they should therefore “know the risks and act early.”

Warning for emergency professionals

NiMet urged emergency management authorities to step up preparedness efforts, noting that emergency response groups such as the State Emergency Management Agency and the National Emergency Management Agency, community leaders, and relevant stakeholders should strengthen preparedness and response measures.

The agency emphasised that proactive planning remains the most effective way to reduce the devastating effects of flash flooding.

NiMet said early preparedness and timely action remain essential in reducing the impacts of flash flooding.