This advisory is in effect through Wednesday morning.  SCAQMD will issue an update if additional information becomes available.                                                                                                       

A brush fire, named the Canyon Fire, is burning in Orange County near the border of Riverside County, south of the 91 Freeway and west of Green River Road.  The burn area is reported to be over 2500 acres this morning, with five percent containment.  The winds this morning are from the northeast, bringing smoke to Orange County.  Smoke has also moved to the south, into the Lake Elsinore vicinity.  The sea-breeze later this morning and in the afternoon may spread smoke that is offshore into Los Angeles and Orange County and into additional areas of Riverside County, depending on evolving conditions.  Air quality may reach Unhealthy levels in areas directly impacted by smoke.

Areas of direct smoke impacts and Unhealthy air quality will likely include portions of:

  • Corona/Norco Area (Forecast Area 22);
  • North Orange County Area (Forecast Area 16);
  • Central Orange County Area (Forecast Area 17);
  • North Orange County Coastal Area (Forecast Area 18);
  • Saddleback Valley Area (Forecast Area 19);
  • Central Orange County Coastal Area (Forecast Area 20); and
  • Lake Elsinore Area (Forecast Area 25).

In any area impacted by smoke:  Everyone should avoid any vigorous outdoor or indoor exertion; people with respiratory or heart disease, older adults, and children should remain indoors.  Keep windows and doors closed or seek alternate shelter.  Run your air conditioner if you have one and keep the fresh air intake closed and the filter clean to prevent bringing additional smoke inside.  Avoid using a swamp cooler or whole-house fan to prevent bringing additional smoke inside.  To avoid worsening the health effects of smoke, don’t use indoor or outdoor wood-burning appliances, including fireplaces.

SCAQMD Advisory updates can be found at the following link:

To subscribe to air quality alerts, advisories and forecasts by email, go to

To view current air quality conditions by region in an interactive map, see

For more tips on avoiding health impacts from smoke, see SCAQMD Fire Safety Alert Factsheets at

For a map of SCAQMD Forecast Areas, see

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