Himalayan Flash Flood

Name: Off-Nadir Delta
Author: Kazushi Motomura

Titles and summaries are AI-extracted from news reporting; every source is linked below. Event id 1320306509.

Where: Trishuli, Nuwakot district, NepalSomewhere in Trishuli, Nuwakot district, Nepal — an area about 50 km across. The coordinate is that area's centre, not the event site.
When: Occurred 2026-08-27basis: stated_in_articleFirst reported 2026-08-27 · last update 2026-08-31
Sourcing: 3 articles3 outlets carrying it · independence not establishedverification: independently_confirmed
Satellite observability: observableRadar coverage

What imagery could confirm

mud covering properties ~10m at Trishuli, Nuwakot district, Nepal

What remains unresolved

coordinate_not_search_ready
quality_not_passed
geo_not_ready

Timeline

2026-08-27new_eventA new event has been reported.
2026-08-28severity_escalatedAssessed severity rose from 9 to 10.
2026-08-28corroboration_increasedThis event is now carried by independent sources, not one.
2026-08-28casualty_count_raisedThe reported number killed rose from 162 to 359.
2026-08-31corroboration_increasedIndependent sources rose from 2 to 3.
2026-08-31casualty_count_raisedThe reported number killed rose from 359 to 799.

Sources

Death toll nears 800 in Nepal flood disaster2026-08-31
https://www.rte.ie/news/world/2026/0827/1589377-nepal-flooding/2026-08-27
Hundreds killed and more than 1,000 missing after Himalayan flood2026-08-28

Related events

Nepal flood disasterGrouped into the same event cluster — a separate report of the same occurrence, not a separate event. · 2026-08-31
Nepal floodsGrouped into the same event cluster — a separate report of the same occurrence, not a separate event. · 2026-08-27
Nepal's hesitance to accept foreign help for flood relief under scrutinyHappened at this location 3 d after this event. Order in time only — it is not established as a consequence. · 2026-08-31
Nepal-China border flood disasterHappened at this location 2 d after this event. Order in time only — it is not established as a consequence. · 2026-08-30
Nepal-China border disasterHappened at this location 1 d before this event. Order in time only — no causal link is claimed. · 2026-08-27
Fresh flood risks in the HimalayasHappened at this location 1 d before this event. Order in time only — no causal link is claimed. · 2026-08-27
Nepal Flash Flood and LandslideHappened at this location 1 d before this event. Order in time only — no causal link is claimed. · 2026-08-27
Flash Floods in NepalReported 0 km away and 0 h after. No established relationship beyond proximity. · 2026-08-28
Nepal FloodReported 8 km away and 0 h after. No established relationship beyond proximity. · 2026-08-28

Open on the Watchfloor Ask Delta Agent

Reproduce over the API (free endpoint)

bash

curl "https://offnadir-delta.com/api/v1/events/1320306509/thread" \
  -H "Authorization: Bearer ond_YOUR_API_KEY"

For situational awareness only — not for tracking or targeting individuals. Every claim above links to its reporting; satellite fields are the same values the API serves.