Forecast will be issued daily by noon (PDT)

A "!" next to a forecast means a Spare The Air Day has been declared for that day.
 
Forecast: AQI   Pollutant
Thu. August 28, 2008:
 124 
Ozone    
Fri. August 29, 2008:
 129 
Ozone    
 
Extended Forecast: Condition Pollutant
Sat. August 30, 2008:
Moderate  Moderate
Ozone    
Sun. August 31, 2008:
Moderate  Moderate
Ozone    
Mon. September 01, 2008:
Moderate  Moderate
Ozone    
Tue. September 02, 2008:   Ozone    
 
Actual: AQI   Pollutant
Wed. August 27, 2008:
 119 
Ozone    

Discussion:
Today, an upper-level ridge of high pressure will produce sunny skies and seasonably warm temperatures enhancing ozone formation; however, moderate northerly winds in the afternoon will disperse pollutants leading to Moderate ozone levels. Tomorrow, the upper-level ridge will continue to enhance ozone formation, producing sunny skies and hot temperatures. As a result, ozone levels will be Unhealthy for Sensitive Groups. Friday, an upper-level high-pressure system will produce sunny skies, hot temperatures, and light winds, leading to Unhealthy for Sensitive Groups ozone levels.