Flooding in Nigeria is on the rise – good forecasts, drains and risk maps are urgently needed
Nigeria is one of the most flood-prone countries in west Africa. Many areas experience annual flooding. This happens during heavy rainfall and one of the reasons is poor drainage systems. The country therefore needs to make improvements. As researchers who have specialised in meteorology for about two decades we believe there are several ways it can do this. The key interventions needed are: These actions are necessary to build resilience to floods. The Nigeria Meteorological Agency and the Nigeria Hydrological Services Agency have predicted severe flooding this year. And recent devastating flooding incidents are still fresh in the minds of Nigerians.Flooding in NigeriaNigeria is increasingly prone to them.
Nigeria is one of the most flood-prone countries in west Africa. Many areas experience annual flooding. This happens during heavy rainfall and one of the reasons is poor drainage systems. The country therefore needs to make improvements. As researchers who have specialised in meteorology for about two decades we believe there are several ways it can do this. The key interventions needed are:
These actions are necessary to build resilience to floods. The Nigeria Meteorological Agency and the Nigeria Hydrological Services Agency have predicted severe flooding this year. And recent devastating flooding incidents are still fresh in the minds of Nigerians.
Flooding in Nigeria
- Nigeria is increasingly prone to them.
- There are many predictors of floods, chief of which is increasingly heavy rains over the west African Sahel.
- In recent decades parts of Nigeria have experienced summer rainfall extremes that are more intense than before.
- Thirdly, flooding in Nigeria is made worse by the poor management of drainage systems.
Building resilience against floods
- These initiatives will reduce the speed of water flow and reduce the impact of floods.
- Another easy intervention is the process of risk mapping, assessment and planning for floods.
- Capacity building is required to improve the reliability of forecasting in the country.
- Access to the funding depends on having systems for data collection, recording and reporting of loss and damage finance needs.
Avoiding a repeat of disaster
- The Nigerian Emergency Management Agency) estimated a total economic loss to be about US$16.9 billion.
- In 2022, the flooding caused over 600 deaths and affecting an estimated 3.2 million people across 34 of the country’s 36 states.
- As a matter of urgency, states should set up local disaster management committees to assist in creating awareness and relocating communities living in flood-prone areas.