Overview
- The Tawang district disaster management department issued an alert after the Centre for Earth Science and Himalayan Studies flagged a possible Glacial Lake Outburst Flood in the Mago Chu basin, and the advisory was shared with the Indian Army, ITBP and BRO.
- A team led by Thingbu assistant commissioner Thutan Wangchu inspected Khangri Glacier (Neh-Goh Gangri) and Neh-Goh Tso and reported that the lake’s water level was below the moraine, the outlet sat on stable rock and observed outflow exceeded inflow, which reduced the likelihood of an immediate breach.
- Officials, including deputy commissioner Namgyal Angmo and superintendent of police Tasi Darang, urged residents along the Mago Chu and Tawang Chu rivers to stay alert and keep emergency supplies ready while regular updates continue.
- Local heavy rains have caused waterlogging near the Lekhi ISBT and exposed weak drainage, a short-term vulnerability that could worsen impacts if a flood surge occurs or the monsoon intensifies.
- Authorities recommended detailed scientific study of glacier retreat, lake depth, inflow/outflow dynamics and moraine stability to refine risk estimates, noting that eastern Himalayan glacier loss makes GLOFs a growing climate hazard and that broad valleys above Merathang, Jethang and Mago may help reduce downstream surge energy.