A smoke advisory was extended through Sunday afternoon for Riverside County due to several fires burning in the region.
According to the South Coast Air Quality Management District, two major fires in the region were spewing ash and smoke into the air, creating unhealthy or hazardous levels of particulate matter throughout the county.
The El Dorado Fire is burning in the Yucaipa area in San Bernardino County and has blackened more than 14,000 acres. It was 39% contained as of Saturday.
The Bobcat Fire, which has scorched over 29,000 acres north of Azusa and Monrovia in the Angeles National Forest, was 6% contained Saturday.
Smoke was expected to move east and northeast into Riverside County through Saturday evening, according to the AQMD.
The agency said the smoke from the El Dorado Fire will continue to affect western Riverside County and the Coachella Valley overnight Saturday into Sunday morning, with the highest particulate matter levels likely between San Bernardino and Banning.
By Sunday afternoon, onshore winds forecast to start around noon are expected to move most of the smoke north and northeast into the mountains and eventually out of the region, according to the AQMD.
However, smoke wafting in from fires in central and northern California could continue to have negative impacts on the air quality, AQMD officials said.
Anyone who smells smoke or sees ash from a wildfire was advised to limit their exposure by remaining indoors with windows and doors closed or seeking alternate shelter, and avoiding vigorous physical activity.