Los Angeles, California UFO Sighting (July 20, 1949) — FBI Files
FBI records from July 1949 detail an investigation into a letter sent to Walter Winchell reporting a saucer-shaped object ascending over Los Angeles.
Background
On July 20, 1949, in Los Angeles, California, U.S. government investigators recorded an unidentified-object incident later released to the public on May 8, 2026, as part of the Presidential Unsealing and Reporting System for UAP Encounters (PURSUE). This specific event occurred during a period of intense public fascination and widespread anxiety regarding aerial phenomena. The incident belongs to the first wave of “flying saucer” reports that swept the United States following the Kenneth Arnold sighting of June 1947 and the Roswell incident of July 1947. During this era, the term “flying saucer” had entered the common lexicon, often used to describe objects that exhibited flight patterns inconsistent with known aeronautical technology of the post-war period.
The administrative handling of this case reflects the Cold War-era security posture of the United States. The case was filed with the Federal Bureau of Investigation, whose Knoxville, Albuquerque, Los Angeles, and other field offices routed UFO reports to headquarters under the Bureau’s standing protocols for the protection of vital installations. During the late 1940s, the sudden appearance of unidentified aerial phenomena was viewed through the lens of national security, as investigators had to consider whether such objects represented Soviet surveillance capabilities or experimental domestic hardware.
What the document records
The primary evidence for this event consists of correspondence rather than direct physical evidence or aerial photography. An individual in Los Angeles wrote to the prominent newspaper columnist Walter Winchell, claiming to have seen a flying saucer leave the ground. The author of the letter went as far as theorizing that the object might have been a landing from another planet. Because Winchell was a highly influential figure in American media, his receipt of such claims necessitated a formal response from federal authorities.
The FBI investigated the letter’s origin, attempting to locate the writer, identified in the records as Peter Cameron Jones. This investigation was a procedural effort to determine if the claim was a legitimate security concern or a matter of public interest. However, the investigation proved unsuccessful, as agents were unable to track down the individual behind the correspondence. Due to the inability to verify the identity of the claimant or conduct an interview, investigators ultimately believed the report was a prank. The number of witnesses to the actual ascent of the object is not specified in the released document, leaving the scale of the alleged sighting unquantified.
Type of case
The descriptions provided within the documentation characterize the object as being disc- or saucer-shaped. This morphology was consistent with the prevailing descriptions of unidentified phenomena during the late 1940s, which frequently emphasized circular or flattened geometries.
Status
All records released under the PURSUE program are designated unresolved by the All-domain Anomaly Resolution Office (AARO) by default. The federal government has not concluded that the events were anomalous, has not concluded that they were conventional, and has not ruled out either possibility. The lack of a definitive conclusion is a standard feature of the archival processing of mid-century sightings, where the absence of a traceable witness often precludes a formal determination of authenticity.
Conventional candidates for sightings of this period include experimental aircraft, weather balloons, particularly the Project Mogul series active in the late 1940s, and atmospheric optical phenomena such as sundogs and lenticular clouds. Additionally, astronomical objects including Venus, the Moon, and meteors near the horizon were frequently cited as potential sources of misidentification. In the case of the Los Angeles report, the lack of a verifiable witness means the event remains categorized alongside other unverified aerial phenomena of the era.