The Utah Department of Environmental Quality upgraded today's air quality condition from "yellow" to "red" this afternoon as air the quality worsened in Salt Lake, Davis and Weber Counties.

Air quality conditions deteriorated significantly from this morning as persistent, strong south/southwest winds have increased the amount of blowing dust in the area.

Utah County's air quality remains at a "yellow" level.

As a result of poor air conditions, a health advisory has been issued for Salt Lake, Davis and Weber Counties that could be in effect for the next 12-18 hours. People are advised to stay indoors to avoid the dust swirling in the air.

The Bear River Health Department has listed Cache County's air levels as "moderate."

Air conditions are expected to improve early Sunday morning.

More information on air quality can be found at www.airmonitoring.utah.gov.