How Did Pennsylvania's Sighting Wave Grow?

Introduction

Western Pennsylvania’s 1973 sighting wave did not become famous simply because unusual reports occurred. It became a “wave” because scattered accounts were connected, repeated and amplified through a growing network of witnesses, volunteer investigators, police contacts and local media coverage. By the autumn of 1973, residents in several counties were no longer hearing isolated stories about strange lights. They were hearing about lights, creatures, landing traces and neighbour reports that seemed to form a single pattern.[stangordon.info]stangordon.infoSilent InvasionStan Gordon's UFO Anomalies ZoneStan Gordon began his journey in field investigations of UFOs and other Paranormal encounters in Pennsylv…

This process matters because it helps explain how UFO flaps develop. Even when some reports are sincere and unexplained, publicity can influence what people notice, how they interpret it and whether they decide to report it at all. The 1973 Pennsylvania wave is a useful example because the growth of the phenomenon can be traced through expanding publicity rather than through a single dramatic event.[Sharon A. Hill]sharonahill.comHillWhen Bigfoot became an alien (around 1973) - Sharon A. Hill2 Jan 2017 — UFO reports continue into 1974. Claimed sightings of both Big…

From Isolated Lights to Linked Creature Reports

Early in 1973, western Pennsylvania saw reports of unusual lights in the sky. Similar reports were appearing elsewhere in the state, creating a broader atmosphere of attention to strange aerial phenomena. What might otherwise have remained local stories instead became part of a developing regional narrative.[stangordon.info]stangordon.infoSilent InvasionStan Gordon's UFO Anomalies ZoneStan Gordon began his journey in field investigations of UFOs and other Paranormal encounters in Pennsylv…

As the year progressed, reports changed in character. Witnesses increasingly described not only lights but also large, hairy humanoid figures. In many cases the two themes became linked. A sighting that might once have been reported as a strange light was now discussed alongside stories of mysterious creatures. Investigators later documented numerous cases in which witnesses connected the appearance of a creature with an unusual object in the sky.[PA Researchers Org]paresearchers.comPA Researchers OrgWestmoreland County Bigfoot reports 1973 to 2003August 27, 1973: Beech Hill, Greensburg: A woman saw a boomerang shaped…Published: August 27, 1973

This linking process was important. A person who had already heard reports of creatures associated with UFOs was more likely to interpret an ambiguous experience through the same framework. The wave therefore expanded not just through new incidents but through the growing belief that different incidents belonged to one larger mystery.[Sharon A. Hill]sharonahill.comHillWhen Bigfoot became an alien (around 1973) - Sharon A. Hill2 Jan 2017 — UFO reports continue into 1974. Claimed sightings of both Big…

The Role of Volunteer Investigators

A central figure in the 1973 wave was researcher Stan Gordon. Based in Westmoreland County, Gordon had already established a network for collecting UFO reports before the surge began. As sightings increased, witnesses, police officers and journalists frequently contacted investigators rather than keeping reports private.[stangordon.info]stangordon.infoResearcher and Investigator16 Aug 2011 — Stan Gordon's… Bigfoot encounters and UFO sightings that occurred throughout Pennsylvania in…

Volunteer investigators performed several functions at once:

This work produced a feedback effect. The more reports investigators collected, the more evidence there appeared to be that something unusual was occurring. Public awareness increased, encouraging additional witnesses to come forward. Some people who might previously have dismissed an odd light or sound now had a recognised place to report it.[stangordon.info]stangordon.info2023-A Major Year for UFO/UAP, Bigfoot, Cryptid Reports And…17 Jan 2024 — Some of you will remember the massive UFO and Bigfoot wave t…

Supporters argue that this process revealed a genuine regional pattern that would otherwise have been missed. Sceptics counter that the same process can unintentionally create patterns by encouraging witnesses to fit experiences into an already established narrative. Both interpretations acknowledge the importance of the investigators themselves in transforming individual reports into a recognised wave.[Sharon A. Hill]sharonahill.comHillWhen Bigfoot became an alien (around 1973) - Sharon A. Hill2 Jan 2017 — UFO reports continue into 1974. Claimed sightings of both Big…

Media Attention, Expectation and Supernatural Creep

Local newspapers and broadcast media played a crucial role in spreading awareness. Reports from one county quickly became known in neighbouring communities. Stories that combined UFOs with giant hairy creatures were especially newsworthy, ensuring repeated coverage and public discussion.[Medium]medium.comthe pa ufo bigfoot invasion of 1973 9e34e7ad3875The PA UFO Bigfoot Invasion of 1973 | by Weird onesI'm talking, of course, about the PA UFO Bigfoot Invasion of 1973. A “flap” is a…

As publicity increased, descriptions also became more elaborate. Researchers studying the period have noted that later reports often included features that had already appeared in earlier accounts: glowing eyes, unusual sounds, apparent resistance to gunfire, disappearing figures and links between creatures and aerial lights. These recurring motifs helped create a shared vocabulary for describing unusual experiences.[Sharon A. Hill]sharonahill.comHillWhen Bigfoot became an alien (around 1973) - Sharon A. Hill2 Jan 2017 — UFO reports continue into 1974. Claimed sightings of both Big…

Some historians of anomalous phenomena describe this process as a form of expectation shaping. Witnesses are not necessarily inventing experiences. Instead, prior stories provide a framework for interpreting ambiguous sights and sounds. In 1973 Pennsylvania, people were not only looking for strange lights; they were increasingly expecting those lights to be connected with creatures and other unusual events.[Sharon A. Hill]sharonahill.comHillWhen Bigfoot became an alien (around 1973) - Sharon A. Hill2 Jan 2017 — UFO reports continue into 1974. Claimed sightings of both Big…

The result was what might be called “supernatural creep”. Reports gradually accumulated additional elements as stories circulated through communities. A distant light became a close encounter. A creature sighting became connected to a UFO. Separate mysteries merged into a larger narrative that seemed more dramatic and coherent than the original individual reports.[Sharon A. Hill]sharonahill.comHillWhen Bigfoot became an alien (around 1973) - Sharon A. Hill2 Jan 2017 — UFO reports continue into 1974. Claimed sightings of both Big…

Why the Feedback Loop Matters

The growth of the 1973 western Pennsylvania wave demonstrates that UFO flaps are social events as well as collections of sightings. Publicity did not necessarily create every report, but it influenced which reports were noticed, remembered and shared. Investigators provided networks for collecting information, while newspapers and word-of-mouth spread stories across county lines.[stangordon.info]stangordon.infoSilent InvasionStan Gordon's UFO Anomalies ZoneStan Gordon began his journey in field investigations of UFOs and other Paranormal encounters in Pennsylv…

This helps explain why the wave appeared to accelerate during the year. Increased attention generated more reports, and more reports generated even greater attention. By the time famous cases such as the Fayette County encounters emerged, they were being interpreted within a framework that had already been built by months of publicity and investigation.[stangordon.info]stangordon.info2023-A Major Year for UFO/UAP, Bigfoot, Cryptid Reports And…17 Jan 2024 — Some of you will remember the massive UFO and Bigfoot wave t…

For students of Pennsylvania UFO history, this feedback mechanism is one of the most significant lessons of 1973. Whether one views the reports as evidence of genuinely unexplained phenomena, cultural folklore in formation, or a mixture of both, the wave shows how local publicity can transform scattered incidents into a regional phenomenon.[sharonahill.com]sharonahill.comHillWhen Bigfoot became an alien (around 1973) - Sharon A. Hill2 Jan 2017 — UFO reports continue into 1974. Claimed sightings of both Big…

Amazon book picks

Further Reading

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Silent Invasion

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Documents how the 1973 wave developed.

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The UFO Experience

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Introduces the concept of UFO waves and case evaluation.

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The Mothman Prophecies

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Rating: 4.5/5 from 6 Google Books ratings

Examines how clusters of reports can evolve.

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Messengers of Deception

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Endnotes

1. Source: stangordon.info
Title: Silent Invasion
Link:https://www.stangordon.info/wp/buy-stuff-here/silent-invasion/

2. Source: stangordon.info
Link:https://www.stangordon.info/wp/2024/01/17/2023-a-major-year-for-ufo-uap-bigfoot-cryptid-reports-and-other-mysterious-activity-in-pennsylvania/

3. Source: sharonahill.com
Link:https://sharonahill.com/bigfoot/

4. Source: stangordon.info
Link:https://stangordon.info/stangordon.htm

5. Source: medium.com
Title: the pa ufo bigfoot invasion of 1973 9e34e7ad3875
Link:https://medium.com/%40weirdones/the-pa-ufo-bigfoot-invasion-of-1973-9e34e7ad3875

6. Source: stangordon.info
Title: Buy Stuff!
Link:https://www.stangordon.info/wp/buy-stuff-here/

7. Source: paresearchers.com
Link:https://paresearchers.com/westmoreland-county-bigfoot-reports-1973-to-2003/

Published: August 27, 1973

Additional References

8. Source: facebook.com
Title: stan gordon who has been researching ufo and cryptid reports across pennsylvania
Link:https://www.facebook.com/PennLive/posts/stan-gordon-who-has-been-researching-ufo-and-cryptid-reports-across-pennsylvania/778366547651093/

9. Source: youtube.com
Link:https://www.youtube.com/watch?v=g_mzuuqtVL8

10. Source: youtube.com
Link:https://www.youtube.com/watch?v=rYAjZPMyXRw

11. Source: youtube.com
Link:https://www.youtube.com/watch?v=GnmzjJzEaYU

12. Source: youtube.com
Link:https://www.youtube.com/watch?v=AFFnocWe8Jw

13. Source: youtube.com
Link:https://www.youtube.com/watch?v=TQvyI-UqguQ

14. Source: arxiv.org
Link:https://arxiv.org/html/2502.06794v1

15. Source: books.google.com
Link:https://books.google.com/books/about/Silent_Invasion.html?id=hMf3TgEACAAJ

16. Source: cia.gov
Link:https://www.cia.gov/readingroom/docs/CIA-RDP81R00560R000100010012-8.pdf

17. Source: facebook.com
Link:https://www.facebook.com/groups/smartbigfoot/posts/27210434891895258/