The state Commissioner for Environment, Ola Oresanya, raised the alarm at a press conference in Abeokuta, the Ogun State capital, on Wednesday.
The PUNCH reports there has been a series of flooding which had claimed lives and property.
Oresanya said the warning became imperative following the prediction of the Nigerian Meteorological Agency on the 2023 flood alert in the state.
According to Oresanya, the listed areas will witness coastal flooding due to the tidal lock of the Ogun River by Lagos Lagoon from a natural rise in sea level coupled with the possible release of excessive water from the Oyan dam.
Oresanya alerted residents of the state to brace up for flash floods as the state is expecting 3,646mm of rainfall between April and November.
He recalled that the country recorded the worst-ever flood incidents in 2022 which killed over 600 people and displaced about 2.4 million persons.
The state also warned residents of 23 other communities prone to flood to urgently take precautions to alleviate the impact of flooding.
Oresanya cautioned residents against acts that expose them to flood accidents.
He said, “Residents are advised to desist from the temptation of building on run-off routes and placement of temporary structures and containers or extension of business premises on top of drains in markets and public places.
“In preparation for the inevitable impact of the natural pattern of rainfall predicted for the year 2023, residents in the following areas at Onikoko, Sokori and Arakanga areas in Abeokuta, Owa and Yemule riverbanks in Ijebu-Ode, Eruwuru in Sagamu, Ebute Kimobi in Ijebu East, Isaka Owode in Ado-Odo Ota, Owode, Igijo, Ilaro and Ijoko should expect flash floods due to heavy rainfall within short periods.
“The second season will have prolonged impact in wetlands such as Alagbole, Akute, Isheri, Warewa, Oke-Afa, Mowe, Ibafo, Kara, Onihale, Ebute Kimobi and Riverside Estate.
“These areas will witness coastal flooding due to tidal lock of the Ogun River by Lagos Lagoon from natural rise in sea-level coupled with possible release of excessive water from the Oya dam. Residents of these areas should be prepared to relocate temporarily from these areas during the second season of rainfall if required.
“Furthermore, farmers in the state are advised to complete the harvest in the month of August and avoid farming and livestock rearing along the flood plain to prevent the adverse impact of intense flooding of the second season of rainfalls.
“In realization of the inter boundary impact of flooding, we wish to reassure residents of the state that we have effective collaboration with the management of Ogun-Osun River Basin Development Authority (OORBDA) and the neighbouring states of Lagos and Oyo, especially as it relates to the release of water from Oyan dam.”
