As reported
Light over Harwoord Heights, IL
A witness account on file, unevaluated. Most of the archive rests here, and honestly so.
The report, as filed
The "intense whistling and displacement of air" was all that was heard, but it was enough to strike terror into sane individual.
Held as-reported from National UFO Reporting Center. Witness text is preserved verbatim, including its spelling; nothing is edited beyond formatting.