South Tacoma, Washington UFO Sighting (August 3, 1947) — FBI Files
FBI records document an unidentified object sighting in South Tacoma, Washington, occurring during the historic summer wave of 194 and 1947.
Historical Context of the 1947 Wave
The summer of 1947 represents a pivotal moment in the history of unidentified aerial phenomena in the United States. Following the Kenneth Arnold sighting in June 1947 and the subsequent reports surrounding the Roswell incident in July 1947, the American public and federal agencies experienced a surge in reports of unidentified flying objects. This period saw the emergence of the “flying saucer” phenomenon, a term coined by the media to describe objects that appeared to move with non-ballistic trajectories. During this era, the technological landscape was transitioning into the jet age, leading to significant ambiguity regarding whether sightings were caused by secret military developments, atmospheric anomalies, or extraterrestrial craft.
The geographic area of the Pacific Northwest, particularly Washington State, has long been a focal point for such observations due to its complex topography and proximity to various military installations. The South Tacoma region, situated within the industrial and logistical corridors of the Puget Sound, provided a backdrop of heavy air traffic and sensitive infrastructure, making any unidentified aerial activity a matter of potential national security interest.
The South Tacoma Incident
On August 3, 1947, an unidentified-object incident occurred in South Tacoma, Washington. The details of this specific event were documented by U.S. government investigators and remained largely shielded from public view for decades. The records pertaining to this sighting were eventually released to the public on May 8, 2026, as part of the Presidential Unsealing and Reporting System for UAP Encounters (PURSUE).
The documentation regarding the South Tacoma event is notable for its inclusion in the files of the Federal Bureau of Investigation. During this period, the FBI maintained a protocol wherein various field offices, including those in Knoxville, Albuquerque, and Los Angeles, were instructed to route UFO reports to headquarters. This procedure was established to ensure the protection of vital installations and to monitor potential threats to national airspace. While the released documents confirm the existence of the investigation, the specific number of witnesses involved in the South Tacoma sighting is not specified within the available paperwork.
Investigative Records and Documentation
The released FBI files provide a fragmented view of the investigative process. One notable portion of the record details an interaction involving an individual identified as DAHL, who informed agents Smith and Arnold that he had received a letter from an entity known as CRISI. DAHL’s communication to the agents indicated instructions to manage his business affairs while he was out of town. Although DAHL did not present the physical letter to the agents, he made reference to a previous correspondence. Following this exchange, the agents proceeded to breakfast, during which Smith organized a meeting with a Major Sanders.
The verbatim text from the file captures a specific fragment of this communication: “Take care of my
business. I’l] be out of town for three or four”. This snippet reflects the administrative and investigative nature of the Bureau’s handling of such reports, focusing on the movements and communications of persons of interest related to the era’s aerial phenomena.
Classification and Current Status
The South Tacoma sighting is classified as a visual sighting reported by ground or air observers. As with all records released under the PURSUE program, the All-domain Anomaly Resolution Office (AARO) designates the case as unresolved by default. The federal government has maintained a neutral stance regarding the South Tacoma incident, neither concluding that the event was anomalous nor confirming that it was the result of conventional means.
In the context of 1947, several conventional explanations are often considered by historians and investigators. These include the presence of experimental aircraft, the deployment of weather balloons—specifically those associated with the Project Mogul series—or atmospheric optical phenomena such as sundogs and lenticular clouds. Additionally, astronomical objects like Venus, the Moon, or meteors near the horizon frequently provided the basis for such reports. The South Tacoma file remains a significant component of the archival record regarding the mid-century wave of unidentified aerial phenomena.