Air Quality Forecast

June 18 – June 22: Low pressure over the Pacific is currently inducing onshore flow allowing marine stratus to infiltrate coastal and coastal adjacent areas.  This is moderating temperatures at the coast, keeping them below normal for this season. Building high pressure over the weekend should arrive early next week, which will warm things up a bit. Temperatures will range from the low-50s to the high-60s at the coast and high-50s to low-90s inland. Cooler temperatures will keep ozone production down; therefore, ozone AQIs will remain GOOD.  Decent wind speeds could bring PM10 AQIs to MODERATE . However, moisture from marine stratus should be able to limit this.  As low pressure remains, expect PM2.5 (smoke) AQIs to remain GOOD.  Building high-pressure next week will reduce ventilation and we could see MODERATE PM2.5 AQIs.

Particulate Matter Sensor Network

 

Regulatory Air Monitoring Stations