https://www.mercurynews.com/2022/07/25/smoke-from-oak-fire-prompts-bay-area-air-quality-advisory-chokes-sierra-nevada/

Smoke from California’s largest fire of 2022 prompted Bay Area air quality officials to warn that some people in the region with respiratory issues may need to take precautions in the coming days as a nearly 16,800-acre blaze continues to burn west of Yosemite National Park.

Plumes from the Oak Fire on Monday caused a fourth day of air quality issues across the Sierra, the National Weather Service and federal air quality sensors reported. The fire pushed north Monday along a 165-mile stretch of the Sierra Nevada, prompting air quality warnings and choking Yosemite National Park, Lake Tahoe and even parts of western Nevada in an acrid haze.