Cascade Tunnel; as warm air exits the Cascade Tunnel ahead of a westbound train it condenses in the freezing cold air and the dirty concoction is highlighted by the headlights. Its a really neat phenomenon to witness because as the train gets closer the beam of light gets bigger and brighter. The crew is about to be greeted by the green over red signal behind me which is what painted the snow red and teal. Big thanks to Diamond Dave Honan for convincing me to stay out and take a few more shots that night.