Nepal-Tibet flash flood: BBC traces deadly path with verified video

BBC Verify has traced the path of the destructive flash flood that struck the Nepal-Tibet border region, using verified video footage to reconstruct the disaster's timeline. The flood, which killed dozens and left many missing, swept through mountain valleys with little warning. BBC Verify analyzed multiple videos filmed by witnesses to map how the water surged from higher elevations down into populated areas. The footage shows a massive wall of brown water and debris crashing through narrow gorges, then spreading across farmland and roads. By cross-referencing the videos with satellite imagery and local geography, the team confirmed the flood originated from a glacial lake outburst in the Himalayas. The event highlights the growing risk of such floods as global warming accelerates glacier melt. Local authorities have warned that several other lakes in the region remain unstable. While the exact death toll is still being confirmed, the verified footage provides a clear record of how the flood moved—and why early warning systems failed to reach many residents in time.