Barrier Lakes Bring Flood Danger to Nepal
Listen to the story
A dangerous flood struck Nepal after a glacier collapsed in the mountains. The falling ice released a huge amount of water suddenly.
This event created what experts call a barrier lake flood. A barrier lake forms when rocks, ice, or debris block a river, creating a lake behind it. When the blockage breaks, the water rushes out with great force.
The disaster caused destruction across a wide region, reaching areas up to 100 kilometres away from where it started. Homes, roads, and land were affected by the powerful flow of water.
A young man who had been in Nepal returned to Bettiah, a town in India, and described the terrible scene. He said dead bodies were floating everywhere in the water as it moved through the area.
Rani's father, a witness to the flood, said the water arrived with incredible speed. People had little time to escape before the flood reached them.
This kind of flood is a known danger in mountain regions like Nepal, where glaciers and lakes sit high above villages and towns. Experts warn that such barrier lakes must be watched closely, since sudden breaks can cause deadly floods with almost no warning.
The full story from Nepal shows how quickly a glacier collapse can turn into a major disaster, affecting people and places far from the original site.
Vocabulary10 words
- flood
- too much water suddenly covering land
- glacier
- a huge, slow-moving block of ice on a mountain
- barrier lake
- a lake formed when rocks or ice block a river
- disaster
- a very bad event causing much harm
- region
- a large area of land
- witness
- someone who personally sees an event happen
- debris
- broken pieces of rock, ice, or other material
- blockage
- something that stops water or movement
- collapse
- to break apart and fall down suddenly
- force
- strong power or energy
Quiz
Answer key
1. A glacier collapse that led to a barrier lake breaking 2. Up to 100 kilometres away 3. Bettiah, India
Fill-in-the-blank listening
Play the audio again and fill in the missing words as you listen.
A dangerous _____ struck Nepal after a _____ collapsed in the mountains.
This event created what experts call a _____ lake flood, which forms when rocks or ice block a river.
The _____ caused destruction across a wide region, reaching areas up to 100 kilometres away.
A young man who had been in Nepal returned to Bettiah and described dead _____ floating in the water.
Rani's father, a _____ to the flood, said the water arrived with incredible speed.
Experts warn that such barrier lakes must be _____ closely, since sudden breaks can cause deadly floods.
The full story from Nepal shows how quickly a glacier _____ can turn into a major disaster.
Discussion questions
- Why do you think barrier lakes are dangerous for mountain communities?
- How might early warning systems help prevent damage from these floods?
- What would you do if you saw floodwater approaching quickly?
- Why do you think witnesses' stories are important when reporting on disasters?