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NDMA Flags Two New Glacial Lakes After Nepal Bhote Koshi-Trishuli Floods
After the August 26, 2026 avalanche and floods in Nepal’s Bhote Koshi-Trishuli system, officials and satellite data confirm new glacial lakes near the source. India’s National Disaster Management Authority (NDMA) reports two newly formed lakes, raising concerns of another outburst.
New glacial lakes near Lhende Khola:
| Dimension | Key Details |
|---|---|
| NDMA-identified lakes | NDMA data comprises 2 new lakes measuring 19.80 hectares and 7.28 hectares. |
| Moraine association | The newly identified lakes comprise moraines. |
| Satellite imagery | Satellite imagery from Suhora Technologies comprises an approximately 20.25-hectare lake at Lhende Khola on the Nepal-Tibet border. |
| Reported formation process | The reported formation process comprises meltwater and debris accumulation following an avalanche. |
| Location and drainage linkage | The location comprises the high-altitude headwaters of Lhende Khola, which feeds into the Bhote Koshi-Trishuli river system, near Langtang Lirung. |
| Elevation and geomorphic setting | The setting comprises approximately 5,200 meters within the detachment zone. |
| Dam type indication | The dam type comprises moraine- or debris-dammed lakes associated with moraines and avalanche or debris deposits. |
| Data gaps | Data gaps comprise unavailable depth measurements and unavailable volume measurements, and the water volume remains undetermined. |
| Verification and monitoring | It comprise field verification and ongoing satellite monitoring for origin and stability assessment. |