Sacoma harbor, Washington UFO Sighting (August 6, 1947) — FBI Files
An August 1947 FBI report details a collision between disc-shaped objects over Tacoma Harbor, resulting in physical damage and loss of life.
Historical Context of the 1947 Wave
The summer of 1947 represents a pivotal era in the history of aerial anomaly reports within the United States. Following the June 194-Kenneth Arnold sighting, which introduced the concept of “flying saucers” to the public consciousness, a surge of similar reports emerged across the Pacific Northwest and the broader nation. This period coincided with the July 1947 Roswell incident, creating a sustained period of public and governmental preoccupation with unidentified aerial phenomena. During this time, the geopolitical climate of the early Cold War necessitated heightened vigilance regarding airspace integrity. The United States government was increasingly focused on monitoring potential incursions by foreign technology, leading to a heightened state of scrutiny regarding any unidentified objects traversing domestic skies.
The geography of the Puget Sound region, characterized by its complex maritime corridors and heavy naval presence, made it a significant area for aerial monitoring. In the mid-twentieth century, the intersection of maritime commerce and military installations necessitated rigorous reporting protocols. Consequently, many sightings occurring near vital coastal infrastructure were processed through established federal channels.
The August 6 Incident
On August 6, 1947, an incident occurred in Tacoma Harbor, Washington, involving multiple unidentified objects. According to records held by the Federal Bureau of Investigation, an individual identified as Harry Dahl observed five disc-shaped objects flying over his vessel. The movement of these objects was described as anomalous, with one specific object appearing to falter in its flight path. This loss of stability resulted in a collision between two of the disc-shaped entities.
The aftermath of this mid-air collision had direct physical consequences for Dahl’s boat. The impact allegedly caused material to be dropped from the objects onto the vessel. The force and nature of this falling debris resulted in structural damage to the boat, including the destruction of a handrail. Furthermore, the event resulted in the death of Dahl’s dog. While the released documentation does not specify a total number of witnesses to the event, the physical evidence documented by investigators provided a basis for the report.
Investigative Findings and Documentation
The investigation into the Tacoma Harbor sighting focused on the physical state of the vessel and the nature of the debris. Investigators noted that the area where the handrail had previously been located was covered in paint, obscuring the underlying damage. The report highlighted that the thin construction of the boat would have been particularly susceptible to damage from falling debris.
The primary source material for this case consists of FBI files that were released to the public on May 8, 2026, under the Presidential Unsealing and Reporting System for UAP Encounters (PURSUE). The original field office reports, routed through various Bureau locations including Knoxville, Albuquerque, and Los Angeles, contained fragmented and difficult-to-read notations. One specific excerpt from the file records that the objects “dropped ‘tons’ of the stuff as pictured in inslosure 3 te 7 on his dost.” The documentation further notes that certain components “arene were very heavily eoated with several esats of paint and had deep weather oragka thet would take euvernl seasons to aequires.” Additionally, the report describes the movement of the objects, stating, “a Plying disc cane out of the olouds and behaved in « similar weanmmer es the ones previously described.”
Classification and Resolution Status
The objects involved in the Tacoma Harbor incident were described by witnesses as being disc- or saucer-shaped. Within the framework of modern aerial anomaly research, the status of this case remains officially unresolved. Under the protocols of the All-domain Anomaly Resolution Office (AARO), all records released through the PURSUE program are designated as unresolved by default.
The federal government has maintained a neutral stance regarding the Tacoma Harbor event, neither confirming the objects as anomalous nor attributing them to conventional sources. During the late 1940s, several conventional explanations were frequently considered for such sightings, including the presence of experimental aircraft, meteorological phenomena such as lenticular clouds or sundogs, and the deployment of high-altitude surveillance equipment like the Project Mogul series of weather balloons. The possibility of astronomical objects, such as meteors or planets near the horizon, also remained a standard consideration for investigators of the era.