Bright green streak across cloudy night sky in VancouverOn a rooftop of an appartment building in East Vancouver, BC, at around 10 pm, my girlfriend notices a few flashes of what seemed like lightning above our heads, lit up the sky for very short periods. Later is what we both saw when we were sitting down facing the South. In the the sky to the south of our location we saw a bright green light soar across the sky. Heading from east to west, I would saw around 40 degrees from the horizon. Faster than a plane or satelite it flew for what looked like a maybe a hundred KM and then got brighter and disappeared. It must have been a least 100 kilometers from our location. After it had vanished, there were a number of planes flying around in a similar location as the UFO. The sky was cloudy and we could not see and stars which lead me to the conclusion that it was not a shooting star. As it always is in larger metropolitan areas, we can only see a couple of brighter stars in the sky only on clear nights. It was a very strange experience and I am very curious if any other people saw it other than us. Both our descriptions of the event matched each other perfectly.