Bhutan glacial lake outburst triggers flash flood alert in North Bengal, Assam
Bhutan glacial lake outburst triggers flash flood alert in North Bengal, Assam
IN · Published Oct 30, 2026
• A glacial lake outburst flood occurred at Shintaphu Lake in Bhutan’s Gasa district on the evening of 29 October 2026, leading to a flash flood alert in parts of North Bengal and Assam.
• The floodwater entered the Mo Chhu River, washing away facilities at Gasa Tshachu, a natural hot spring.

Impact & Risks

The flash flood poses risks to residents in North Bengal and Assam, particularly those living near the Sankosh River and its tributaries. Authorities have warned of potential debris, including dead fish, wood, and concrete, flowing downstream. Rising water levels could disrupt daily life and damage infrastructure. The situation remains critical, with a red alert issued for the Sankosh River system. Climate change and accelerated glacier retreat are contributing factors to such events, increasing the likelihood of future occurrences.

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