Flash Flood Warnings Issued in Assam and West Bengal Following Bhutan's Glacial Lake Outburst
Flash Flood Warnings Issued in Assam and West Bengal Following Bhutan's Glacial Lake Outburst
IN · Published Nov 1, 2026
• A glacial lake outburst flood (GLOF) at Shintaphu Lake in northwestern Bhutan has triggered sudden flash floods along the Mo Chhu and Sankosh river systems.
• India’s Central Water Commission (CWC) has issued immediate flash-flood warnings for border districts in Assam and West Bengal.

Impact & Risks

The flash floods have inundated riparian tracts in Dhubri (Assam) and Alipurduar/Jalpaiguri (West Bengal), raising concerns about damage to infrastructure, agriculture, and human settlements. River aggradation caused by silt and boulder deposits is worsening chronic flood risks in the plains. The event underscores the vulnerability of communities in the Brahmaputra-Sankosh river basin, where flood transit times are as short as 6 to 8 hours. Long-term ecological and agricultural disruptions are expected due to sediment deposits.

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