The Ogun State Government has issued a fresh flood alert, urging residents in vulnerable communities to remain vigilant and relocate to safer locations where necessary.

The Commissioner for Environment, Ola Oresanya, issued the warning in a statement made available to the News Agency of Nigeria on Tuesday.

Oresanya said the alert followed the Nigeria Meteorological Agency’s forecast identifying Ogun among states expected to experience heavy rainfall during the second phase of the 2026 rainy season.

He said the second phase was expected to begin in September, with the state projected to experience intense rainfall averaging about 360mm during the month.

The commissioner warned that prolonged rainfall, controlled overflow from Oyan Dam and tidal fluctuations could increase the risk of river and coastal flooding in parts of the state.

He said the combined effect could slow the flow of the Ogun River and temporarily oversaturate wetlands and floodplains, increasing the likelihood of flooding in vulnerable communities.

Oresanya advised residents of Isheri, Arepo, Mawere, Magboro, Akute and Warewa, as well as parts of Abeokuta, to remain alert and relocate to safer areas where necessary.

The warning also covers coastal communities including Makun-Omi, Iwopin, Oni, Ifaara and Igele in Ogun Waterside Local Government Area, Ebute-Imobi in Ijebu East, Tungeji Island and Agosasa in Ipokia, as well as communities along the Ilo and Iju River floodplains.

The commissioner said the government had taken measures to reduce the impact of flooding, including public awareness campaigns, regular maintenance of rivers, streams and drainage channels, as well as improvements in waste management.

He urged fish farmers operating along floodplains and river corridors to harvest their stocks promptly to minimise potential losses from flooding.