report of object witnessed by daughter many years ago

This is a rather old report, but I did report it when it originally occurred.
 About late July or early August, 1994, my 16 year old daughter had gone to the movies with her boyfriend.  I was in the living room when they returned to the house.  Both children came into the living room with a look of total “terror”.  My daughter ran down the hall to her bedroom and the boyfriend left immediately.  I ran to my daughter who was sobbing and saying, “it was so awful”.  After calming her for a few minutes, I asked what had scared her.
 She related she and her boyfriend were waiting for their ride after the movie and went for a walk near the lake.  There was another couple with them who had gone ahead and were sitting on a dock nearby.
 Next, she said, she “felt” something next to her and looked to see a very small object which was “flying” next to them.  She said it startled them and the object immediately flew from their sides and became very large, hovering, silently barely above the tree tops.
She said it had blue lights which were above it.  She said the total silence and speed of the object’s departure had terrified her.
 I had her make a drawing to the best of her recollection about the object she saw.  She made several drawings, and she finally settled on a drawing that looked similar to a butterfly, basically two triangles with a central area much like a cigar.  I phoned a UFO center that evening and was told there had been many sightings that particular night from the Moses Lake area.
 A few weeks later, there was a tv program about UFO sightings and one of the pictures looked almost identical to my daughter’s drawing.
Source of report indicates that date of the event is approximate.  PD