Refer to the Austin Tx report of 06-29-2004. After reading this report I wanted to relate a similar experience I had. I was driving to work in the fog adjacent to the Fred Meyer warehouse in Clackamas and similar to the above report, I witnessed 5 round lights (smaller than the referenced report) about the size of beach balls, each one a solid color, blue, green, orange, and red. They passed in front of my vehicle at approximately 20 feet altitude, and 20 feet in front of me. These lights were following one another and oscillating (like a sine wave on an oscilliscope) in opposite wave patterns (when one was at the peak of the cycle the next would be at the bottom of the cycle). I have seen work trucks and police cars with flashing lights in the fog and this was not at all similar. There was no apparent "beam", just individual round balls of light. They moved at approximately 40 miles per hour.