A windblown dust advisory will continue Thursday for parts of Riverside County, including the Coachella Valley and the San Gorgonio Pass area.
The South Coast Air Quality Management District issued the advisory Wednesday. It went into effect at 9 p.m. Wednesday and was set to conclude at noon Thursday.
The impacted areas include Desert Hot Springs, Palm Springs, Cathedral City, Indio and Mecca.
Air quality index levels were expected to be unhealthy for sensitive groups or worse at times as a result of blowing dust, officials said.
The agency advised the public to limit exposure by remaining indoors with windows and doors closed and avoid vigorous physical activity.
“Run your air conditioning and/or an air purifier. If possible, do not use swamp coolers or whole house fans that bring in outside air,” the group advised.
The SCAQMD is the regulatory agency responsible for improving air quality for large areas of Los Angeles, Orange, Riverside and San Bernardino counties, including the Coachella Valley. Air quality alerts can be found at aqmd.gov.
An airport weather warning has been issued for Palm Springs International Airport until 9 a.m. Thursday. Wind gusts are at 35 knots and greater. North to northwest gusts are reported at 40 knots.