World News
Newly formed lake along Nepal-China border raises fears of secondary flooding
Authorities and scientists remain on high alert after a glacial detachment created a river-blocking debris dam following deadly flash floods.
The short version
- A newly formed barrier lake holding millions of cubic meters of water has begun overflowing upstream from the devastated Himalayan border region.
- Nepalese authorities placed rescue personnel and local residents on high alert, instructing them to move to higher ground if the river breaches.
- Scientists consider a flood as severe as Wednesday's catastrophic event unlikely, though high temperatures continue to fuel glacial melt and debris accumulation.
Key facts
- A flash flood caused by an ice-rock avalanche along the Nepal-China border left hundreds dead and over 1,500 people missing.[Associated Press]
- Satellite imagery shows a new barrier lake formed by upstream river debris, situated at an elevation of 2,950 meters about 10 kilometers from Gyirong Port.[Associated Press]
- Qianggong Zhang of ICIMOD reported that the new lake holds several million cubic meters of water, roughly equivalent to 1,200 Olympic-sized swimming pools, and has begun to overflow.[Associated Press]
- Nepal's disaster management authority ordered rescue crews and local residents to prepare for immediate evacuations if floodwaters rise again.[Associated Press]
What remains uncertain
- The exact volume of water accumulating behind temporary debris dams remains uncertain as high temperatures continue to drive glacial melt.[Associated Press]
Sources
- Why the newly formed lake is sparking fears of more floodingAssociated Press