Floods are a common natural disaster in Sri Lanka, affecting various parts of the country.
Understanding the climatic zones where floods occur frequently can help us prepare and respond better to these events.
Climatic Zones in Sri Lanka
Sri Lanka is divided into three main climatic zones:
- Wet Zone
- Dry Zone
- Intermediate Zone
Each of these zones experiences different weather patterns, which influence the likelihood and frequency of floods.
Frequent Flood Zones
Wet Zone
- The Wet Zone of Sri Lanka is the area most prone to frequent flooding. This region includes the western and southwestern parts of the country.
- The Wet Zone receives heavy rainfall during the southwest monsoon season, which lasts from May to September. This intense rainfall often leads to flooding, especially in low-lying areas and along riverbanks.
Intermediate Zone
- The Intermediate Zone also experiences floods, though less frequently than the Wet Zone. This region gets rain from both the southwest and northeast monsoons.
- Flooding can occur during both monsoon seasons, affecting areas with inadequate drainage systems.
Why Do Floods Occur?
Floods in Sri Lanka are primarily caused by:
- Heavy Rainfall: Intense and prolonged rain can overwhelm rivers and drainage systems, leading to floods.
- Monsoon Seasons: The southwest and northeast monsoons bring substantial rainfall, increasing the risk of flooding.
- Geographical Features: The central highlands and numerous rivers contribute to the overflow of water during heavy rains.
Impact of Floods
Floods can cause significant damage to homes, infrastructure, and agriculture.
They also pose risks to human safety, especially in densely populated areas.
Understanding the climatic zones and preparing for floods can help mitigate these impacts.
Conclusion
In conclusion, the Wet Zone of Sri Lanka is the most flood-prone area due to its heavy rainfall during the monsoon seasons.
The Intermediate Zone also experiences floods, but to a lesser extent. Being aware of these zones and the reasons for flooding can help us prepare better.
For more information on floods and other questions about Sri Lanka, visit advice.lk.