A smoke advisory was issued Tuesday after a fast-moving brush fire quickly ripped through more than 15,000 acres in the Cajon Pass.
The brush fire, dubbed the Blue Cut Fire, started around 10:30 am Tuesday in the Cajon Pass near Kenwood Avenue. The smoke advisory, issued by the South Coast Air Quality Management District, is in effect through Wednesday morning.
The SCAQMD predicts that winds from the southwest will push smoke toward the north and east into the San Bernardino Mountains and the high desert.
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The air quality is expected to reach "unhealthy" levels in areas directly impacted by smoke from the Blue Cut Fire including portions of the Northwest San Bernardino Valley, Central and West San Bernardino Mountains and the Central San Bernardino Valley.
More than 700 firefighters are battling the blaze and at least two suffered smoke inhalation, officials said.
Pictures and videos on social media showed ash and large plumes. Smoke could be seen in Big Bear Lake.
The fire forced mandatory evacuations and road closures throughout the area.