UFOMYST
CaseFlash1990

Tappen, ND, USA

Pulsing white light travelling extremely fast from West to East

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: 6s, a plausible sighting length
  • Moderate witness text (63 characters)
  • Location geocoded exactly
  • No other reports from this city within 3 days
When
1990-11-01
Where
Tappen, ND, USA
Shape
Flash
Duration
5-7 seconds
Geo
46.875, -99.636 · exact
Slug
flash-over-tappen-nd-1990-c36ed5
Wave

Part of a wave

  • Historical wave1989–1991

    The Belgian Triangle Wave

    Belgium (Eupen, Wallonia, Brussels corridor)

    The definitive black-triangle wave: silent, slow platforms with three corner lights, reported by gendarmes, air-traffic controllers, and thousands of citizens. On the night of March 30-31, 1990, Belgian F-16s scrambled…

    Open wave →

In context

  • One of 1 documented reports from Tappen, ND in the UFOMYST archive.
  • North Dakota logged 3 sightings in 1990.
  • Flash sightings ran at 1.3% during the 1990s (archive average: 1.7%).

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.