UFOMYST
CaseDiamond2018

Wheaton, IL, USA

Four small triangular blimp-like vessels hovering in a square formation, leave in single file.

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: 1200s, a plausible sighting length
  • Moderate witness text (94 characters)
  • Location geocoded exactly
  • No other reports from this city within 3 days
When
2018-09-27
Where
Wheaton, IL, USA
Shape
Diamond
Duration
20 minutes
Geo
41.866, -88.107 · exact
Slug
diamond-over-wheaton-il-2018-5d2c79
Wave

Part of a wave

  • Historical wave2004

    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…

    Open wave →

In context

  • One of 21 documented reports from Wheaton, IL in the UFOMYST archive.
  • Illinois logged 104 sightings in 2018.
  • Diamond sightings ran at 1.5% during the 2010s (archive average: 1.4%).

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.