I saw and orange fireball streak across the sky from generally north to south for about 2 seconds in duration.I stepped outside to smoke a cigarette. I was gazing at the stars. As I looked to my left I saw and orange fireball streak across the sky from generally north to south. It crossed in front of the big dipper, and was visible for approximately 2 seconds. Also, it appeared to be quite low in the sky; seemingly not too far above the tree tops here in Leavenworth, WA. This event occurred at approximately 9:44pm PDT. I am aware of some comets that have been visible. Perhaps it was a comet, but I have seen this type of orange fireball before in the Benson, AZ area.