Tonight's episode focuses on how and why Waymo is essentially employing their fleet of autonomously driven vehicles as mobile weather stations and what it enables. By combining Waymo’s autonomous driving sensor suite — complete with cameras, radar, and lidar —with high-quality ground-truth data from weather visibility sensors, Waymo’s engineers created a new quantitative metric about meteorological visibility that allows the Waymo Driver to generate estimates about the current weather and environmental states it's operating under.