UFOMYST
CaseSphere2015

Chicago, IL, USA

Police, FBI, & Military Cordon Off Areas of Downtown Chicago Durring Mass Sighting As Military Aircrafts Chase UFOs Overhead.

Report quality: Moderate61/100

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: 16200s (an atypical range)
  • Detailed witness text (125 characters)
  • Location geocoded exactly
  • 1 other report from the same city within 3 days
When
2015-09-17
Where
Chicago, IL, USA
Shape
Sphere
Duration
3-6 hours
Geo
41.850, -87.650 · exact
Slug
sphere-over-chicago-il-2015-af87b4
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 →
Local cluster

Local cluster

This sighting is part of a small burst — 3 Chicago, IL reports filed in September 2015.

In context

  • Chicago, IL shows up 413 times across the archive.
  • 182 reports came from Illinois in 2015.
  • In the 2010s, 7.1% of reports described a sphere — the all-time rate is 6.5%.

Nearby in space & time

within 30 days

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.