Sioux Falls, SD, USA
Triangle object without colored or blinking lights, shortly later a bright shere shaped object was scene.
Report quality: Moderate51/100
This score reflects report-quality signals on file — how complete, corroborated, and precisely located the report is — not a claim about whether the sighting was a real craft.
- Duration parsed: 60s, a plausible sighting length
- Moderate witness text (105 characters)
- Location geocoded exactly
- No other reports from this city within 3 days
- When
- 2006-02-04
- Where
- Sioux Falls, SD, USA
- Shape
- Triangle
- Duration
- 1 minute
- Geo
- 43.544, -96.728 · exact
- Slug
- triangle-over-sioux-falls-sd-2006-ba51a9
Part of a wave
The Navy Encounters & the UAP Era
U.S. training ranges (Pacific off San Diego; Atlantic off Virginia), then worldwide reporting
The wave that renamed the subject. The USS Nimitz 'Tic Tac' encounter (November 2004: radar drops from 80,000 ft to sea level in seconds, pilot visual by Cmdr. David Fravor, FLIR video) stayed classified-adjacent until…
In context
- Sioux Falls, SD shows up 70 times across the archive.
- 7 reports came from South Dakota in 2006.
- In the 2000s, 10.1% of reports described a triangle — the all-time rate is 9%.
Report
Full narrative lands with dossier import for famous cases, or the NUFORC free-text summary above for standard reports. This shell is SSR-ready: one D1 row (including connections_json) per page.