"For the past week, the particulate rich air has been sucked south by a tropical depression off of Baja, Mexico, that for a few days became sufficiently deep and focused to warrant a christening by the National Hurricane Center as Tropical Cyclone Genevieve. Now, downgraded to a post-tropical depression, smoky air still streams south over the Pacific, pushed into flood plains, canyons and valleys by local onshore winds." https://www.counterpunch.org/2020/08/28/no-fire-without-smoke/