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National UFO Reporting Center Sighting Report
Occurred : 12/11/2013 18:25 (Entered as : 12/11/13 18:25)
Reported: 12/11/2013 5:36:05 PM 17:36
Posted: 12/12/2013
Location: Powell, WY
Shape: Chevron
Duration: ~10 seconds
Characteristics: Animals reacted to the event
Bright flashes in north sky...

I was sitting outside smoking on the west side of the house on the patio. I was looking up at the clear night sky facing north. At an altitude approximately 10,000 ft., I saw three huge flashes of white light like huge LED's in a chevron formation in the due north sky. The flashes were not an airplane and there was no noise as if any form of conventional aircraft.

I kept looking in the same area and there were no more flashes for another minute or so that I could see. I could hear the neighbors' dogs barking in the distance. This is a rural area and there is no light pollution whatsoever. I came in and reported my sighting to the other occupants of the house.