Light formations in Portland sky.We were returning from a birthday party. Myself, my 3 year old and 6 year old. We were driving down a hill (near Mt. Tabor) and saw three big white lights in the sky that were in a horizontal line..not moving. Then they formed a triangle. Then vertical line...which....what? Horizontal line. I video taped some of it with my phone camera as my battery died and tried to take photos which all turned out crappy but I have never seen anything like this and it is freaking me out. The final freak out moment for me was when one of the lights moved over to another light and they merged for a moment and then went back to some strange formation. I saw three. My daughter says she say four. I did see a plane behind these formations about five minutes in. I am reporting this due to the methodical way the lights moved. They were NOT planes. Then, they dispersed. One light headed North, one headed Northwest and the third one..who knows!! Thank you.