There were 19 of us paddling kayaks and canoes North on the Ouachita River when we saw the burst. We thought it was a white bird (as we are documenting wildlife for a brochure at the time), then it went from the size of a salad plate in my vision and narrowed down until it disappeared. It came from the Southeast diagonal across our field of vision and then seemed to go North straight ahead of us until it dissolved. It was so clear there was no mistake what we saw!