A Catastrophic Flood Hit the Grand Canyon. More than 20 People Are Missing.
Titles and summaries are AI-extracted from news reporting; every source is linked below. Event id 1320662714.
- Where
- Grand Canyon National Park, ArizonaA specific location in Grand Canyon National Park, Arizona, accurate to roughly 500 m.36.308, -112.293
- When
- Occurred 2026-08-29basis: stated_in_articleFirst reported 2026-08-30 · last update 2026-09-01
- Sourcing
- 26 articles26 reports across 25 outlets · independence not establishedverification: independently_confirmed
- Satellite observability
- observableRadar coverage
What imagery could confirm
- flood water extent at Grand Canyon National Park, Arizona
What remains unresolved
quality_not_passed
Timeline
- 2026-08-30new_eventA new event has been reported.
- 2026-08-30occurrence_time_establishedWhen this event happened is now known, separately from when it was reported.
- 2026-08-30attribution_statedThis event is now attributed to National Park Service.
- 2026-08-30corroboration_increasedIndependent sources rose from 3 to 5.
- 2026-08-30corroboration_increasedIndependent sources rose from 5 to 6.
- 2026-08-31corroboration_increasedIndependent sources rose from 6 to 10.
- 2026-08-31corroboration_increasedIndependent sources rose from 10 to 13.
- 2026-08-31severity_escalatedAssessed severity rose from 7 to 9.
- 2026-08-31corroboration_increasedIndependent sources rose from 13 to 14.
- 2026-08-31corroboration_increasedIndependent sources rose from 14 to 17.
- 2026-08-31attribution_changedAttribution changed from National Park Service to USA.
- 2026-08-31corroboration_increasedIndependent sources rose from 17 to 19.
- 2026-08-31corroboration_increasedIndependent sources rose from 19 to 20.
- 2026-08-31corroboration_increasedIndependent sources rose from 20 to 21.
- 2026-08-31casualty_count_raisedThe reported number killed rose from 0 to 2.
- 2026-08-31corroboration_increasedIndependent sources rose from 21 to 22.
- 2026-08-31corroboration_increasedIndependent sources rose from 22 to 23.
- 2026-09-01casualty_count_correctedThe reported number killed was revised down from 2 to 0.
- 2026-09-01corroboration_increasedIndependent sources rose from 23 to 24.
- 2026-09-01corroboration_increasedIndependent sources rose from 24 to 25.
Sources
- Deadly Grand Canyon flooding knocks out critical water line amid race to find missing hikers2026-08-31
- Flash floods in Grand Canyon2026-08-30
- Dozens evacuated from Grand Canyon after flash flood hits creek leading to the Colorado River2026-08-30
- Grand Canyon Flash Flood2026-08-30
- Flash floods in Grand Canyon2026-08-30
- Flash floods hit Grand Canyon, at least 20 hikers missing2026-08-30
- Urgent search underway for more than 20 people after Grand Canyon flash flood2026-08-30
- 15 people may be missing after ‘significant’ Grand Canyon flash flooding2026-08-31
- Dozens evacuated from Grand Canyon after flash flood hits creek leading to the Colorado River2026-08-31
- Two dead, two missing in Grand Canyon flash flooding2026-08-31
- Dozens evacuated from Grand Canyon after flash flood hits creek leading to the Colorado River2026-08-31
- Dozens evacuated from Grand Canyon after flash flood hits creek leading to the Colorado River2026-08-31
- Grand Canyon flash flood2026-08-31
- Grand Canyon flooding knocks out water pipeline serving tourists at the national park, officials say2026-08-31
- A Catastrophic Flood Hit the Grand Canyon. More than 20 People Are Missing.2026-08-31
- Two dead, two missing in Grand Canyon flash flooding2026-08-31
- ‘This is horrific’: At least 20 U.S. hikers missing as flash flood sweeps through Grand Canyon2026-08-31
- Grand Canyon flood: 15 people ‘missing’, dozens evacuated, heavy rainfall today may cause ‘additional flash flooding’ | Today News2026-08-31
- Grand Canyon Flash Flood2026-08-31
- At least 15 hikers missing as flash flood sweeps through Grand Canyon2026-08-31
- Over 20 missing in US Grand Canyon flash floods; search Ops on2026-08-31
- The Grand Canyon just got ripped apart by a flash flood, 62 people have already been airlifted out - Investment Watch Blog2026-08-31
- Several missing after deadly flash flood in Grand Canyon2026-08-31
- Grand Canyon flash flood knocks out sole water pipeline, shuts overnight stays; 15 people go missing2026-08-31
- https://www.wlky.com/article/arizona-grand-canyon-flooding-rescue-deaths-missing/735733782026-09-01
- Survivors of deadly Grand Canyon flash flood say they ran for their lives2026-09-01
Related events
- Deadly Grand Canyon flooding knocks out critical water line amid race to find missing hikersGrouped into the same event cluster — a separate report of the same occurrence, not a separate event. · 2026-08-31
- Flash floods in Grand CanyonGrouped into the same event cluster — a separate report of the same occurrence, not a separate event. · 2026-08-30
- Flash flood in Grand CanyonGrouped into the same event cluster — a separate report of the same occurrence, not a separate event. · 2026-08-30
- Grand Canyon Flash FloodGrouped into the same event cluster — a separate report of the same occurrence, not a separate event. · 2026-08-30
- Flash flooding at Grand CanyonHappened at this location 1 d after this event. Order in time only — it is not established as a consequence. · 2026-09-01
- Grand Canyon Flash FloodingHappened at this location 2 d before this event. Order in time only — no causal link is claimed. · 2026-08-29
- Urgent search underway for more than a dozen people after Grand Canyon flash floodReported 29 km away and 0 h after. No established relationship beyond proximity. · 2026-08-31
- Federal Plan for Colorado River Water ManagementReported 44 km away and 0 h after. No established relationship beyond proximity. · 2026-08-31
Reproduce over the API (free endpoint)
bash
curl "https://offnadir-delta.com/api/v1/events/1320662714/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.