MUFON Illinois 2000 UFO flap

Record summary

A cluster of reports in southern Illinois and the greater St. Louis region around 2000 appears in Mutual UFO Network and National UFO Reporting Center compilations. Descriptions reportedly included lights, triangular forms, and low-flying objects, but the reports are heterogeneous rather than a single encounter. The lead may help compare database-defined “flaps” with independently documented events and assess how recurring aircraft routes, astronomy, and local publicity influence reporting rates. Verification requires identifying individual case numbers, dates, witnesses, and investigative notes.