comet like white bright vaporit seemed like a large comet made of white bright vapor the head of it did not show clearly and the tail was very long and it was wider than a normal comet and it moved very slow or so it seemed we was driving east on highway 83 when we saw that moving east at low cloud hight above falcon dam((NUFORC Note: Witness indicates that date of incident is approximate. Date probably is flawed. Witness provides no e-address. Possible hoax?? PD))