The smoke made by the Snowstorm fire drifted northeast though the smoke in the Lee wildfire drifted eastward. The Gifford Fire in southern California remained Energetic and created a light-to-reasonable density smoke plume that drifted south around the western Channel Islands, extending south about the Pacific coast of Baja California, https://grease-tight-extract-duct47813.thelateblog.com/37441685/the-2-minute-rule-for-fire-resisting-ductwork-insulation