Western disturbance linked to Nepal floods - The Hindu

**Western Disturbance Triggers Deadly Flash Floods Across Nepal’s Mountain Valleys**

A powerful western disturbance that swept across the Himalayan foothills on September 2‑3 has been identified as the primary catalyst behind the catastrophic flash floods that ravaged central Nepal later that week. The system brought unprecedented rainfall to the already saturated catchments of the Gandaki, Trisuli and Seti river basins, unleashing a rapid surge of water, ice, mud and boulders that surged down steep valleys. Satellite and aerial imagery released by the Indian Space Research Organisation (ISRO) show a massive plume of debris racing through the terrain, while ground reports confirm that the surge originated from a glacier‑lake outburst in the vicinity of the Langtang and Bhotekoshi glaciers. The disaster has claimed at least **70 lives**, left **over 200 injured**, and forced **more than 40 000 residents** to flee their homes, according to Nepal’s Ministry of Home Affairs.

The flood’s ferocity was amplified by a recent 5.9‑magnitude earthquake that struck the border region on August 31, a tremor that ISRO believes may have destabilised the glacier’s moraine dam, precipitating the sudden release of meltwater. As the torrent descended, it scoured villages, swept away bridges, and buried roads under meters of sediment, crippling transport links between Kathmandu and the remote districts of Sindhupalchok, Myagdi and Mustang. In India’s adjacent Uttarakhand state, the **State Disaster Response Fund (SDRF)** was placed on high alert in the border district of Champawat, anticipating secondary impacts and preparing to assist Nepalese authorities with rescue operations.

The Nepalese government has mobilised the Army, the Nepal Police and the National Disaster Risk Reduction and Management Authority to conduct search‑and‑rescue missions, set up temporary shelters, and distribute emergency rations. International partners, including the United Nations Office for the Coordination of Humanitarian Affairs (OCHA) and the Red Cross societies of Nepal and India, have pledged logistical support and medical aid. Officials underscore that the event highlights the growing vulnerability of Himalayan communities to climate‑driven extreme weather and glacial instability, urging accelerated investment in early‑warning systems and sustainable watershed management.

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