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Nepal: IRDR Rapid Analysis Report - Scientific Anatomy of the 26 August 2026 Bhotekoshi Flash Flood

Nepal: IRDR Rapid Analysis Report - Scientific Anatomy of the 26 August 2026 Bhotekoshi Flash Flood
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EXECUTIVE SUMMARY The 26 August 2026 Bhotekoshi flash flood appears to have been triggered by an ice, rock and soil mass failure around the Deding/Langtang region rather than intense localized rainfall. The failure likely blocked the river and formed a temporary natural dam for about 18-19 hours.

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