July 13, 1966๐Ÿ‡ฎ๐Ÿ‡นMilitary Encounter
Physical EvidenceMilitary base

Idaho Falls: Kenneth Arnold films UFO

Kenneth Arnold filmed an unidentified object over Idaho Falls on July 9, 1966, at 2:00 p.m. It resembled a weather balloon but moved at 45โ€“75 mph against a north-northwest wind.

Date
July 13, 1966
Location / Country
Type
Military Encounter

Background

Witness and Event

Kenneth Arnold, an experienced pilot and seller of fire-fighting equipment, filmed an unidentified flying object with a 16 mm camera over Idaho Falls, Idaho at 14:00. The object appeared balloon-like but behaved unusually.

Sighting Details

It moved at a speed of 45 to 75 miles per hour directly against a strong north-northwesterly wind. This made it unlikely to be an ordinary weather balloon, since balloons typically drift with the wind. Arnold, who had become well known in 1947, used his flying experience to document the phenomenon precisely.

Evidence and Context

The 16 mm footage was later shown to researchers such as Greg Long and described a luminous, cylindrical object. Arnold hesitated to make it public, as he felt the time was not right. The film reflects his continuing search for evidence of unconventional aerial phenomena.

Significance

The event adds to Arnold's standing as a key figure in UFO history. It provides visual evidence of an object that resists conventional explanation and connects with his earlier sightings.