13:05:Radio newsman Frank Cooley of station KOIN, INS wire service employees in the Portland Oregon Journal Building, Clark County Sheriffs Deputy Fred Krives, Deputy Clarence McKay, Sergeant John Sullivan, Portland Police Officer Kenneth A. McDowell, Harbor Patrol Capt. K. A. Prahn, Harbor Patrolmen A. T. Austad and K. C. Hoff, Portland Police Officers Earl J. Patterson, Walter A. Lissy and Robert Ellis, Oregon Highway Patrol Sergeant Claude Cross, and many others over a wide area saw five large discs moving at high speed to the east, two flying south and three to the east. They flew with an oscillating or wobbling motion, making sudden 90° turns or zigzagging. Radio reports alerted other officers who saw the objects, aluminum or chromium color, disc or hubcap or pie pan or half-moon shaped, flashing in the sun. They left no vapor trail, made no noise (except possible humming). Some were seen at 10,000-40,000 feet, others at about 1,000 feet. McDowell noticed that pigeons reacted. Sullivan, McKay and Krives noted a low humming sound and reported 20-30 objects. Cooley reported 12 discs at about 20,000 feet. Patterson, Ussy and Ellis were the pilots.

14:00:E. A. Evans saw three metallic discs glinting sunlight, one moving west to east, followed by two others heading north.

16:30: Mrs. L. J. Hayward saw a silvery disc-shaped object looking like a new dime flipping in an erratic path moving slowly.

17:00: Final sighting

Five metallic saucers were observed in clear weather by many female experienced witnesses (as reported to the police) in a city for under 30minutes (McKay, Clarence; Cooley, Frank; Krives, Fred; Su, John).

Ruppelt's account:

The center of activity was the Portland, Oregon, area. At 11:00A.M. a carload of people driving near Redmond saw four disk-shaped objects streaking past Mount Jefferson. At 1:05P.M. a policeman was in the parking lot behind the Portland City Police Headquarters when he noticed some pigeons suddenly began to flutter around as if they were scared. He looked up and saw five large disk- shaped objects, two going south and three going east. They were traveling at a high rate of speed and seemed to be oscillating about their lateral axis. Minutes later two other policemen, both ex- pilots, reported three of the same things flying in trail. Before long the harbor patrol called into headquarters. A crew of four patrolmen had seen three to six of the disks, "shaped like chrome hub caps," traveling very fast. They also oscillated as they flew. Then the citizens of Portland began to see them. A man saw one going east and two going north. At four-thirty a woman called in and had just seen one that looked like "a new dime flipping around." Another man reported two, one going southeast, one northeast. From Milwaukie, Oregon, three were reported going northwest. In Vancouver, Washington, sheriff's deputies saw twenty to thirty.

Google map of this location.