Site Name Ozone AQI PM2.5 AQI PM10 AQI
Carmel Valley AMS 31 at 10PM 62 at 10PM N/A
Hollister AMS 36 at 10PM 54 at 10PM 36 at 9PM
King City AMS 29 at 10PM 55 at 10PM 54 at 9PM
Pinnacles NM 43 at 10PM N/A N/A
SLV Middle School AMS N/A 58 at 10PM N/A
Salinas AMS 34 at 10PM 59 at 10PM N/A
Santa Cruz AMS 39 at 10PM 32 at 10PM N/A
All times shown in PDT Air Quality Index Information
Site:  Parameter:  Hours:
Air Quality Index Information
Site:  Hours:
Air Quality Index Information
Area Today Tomorrow
Pinnacles National Monument Ozone Ozone
Salinas PM2.5 PM2.5
Santa Cruz PM2.5 PM2.5
Hollister PM2.5 PM2.5
King City PM2.5 PM2.5
Carmel Valley PM2.5 PM2.5
Davenport Ozone Ozone
San Lorenzo Valley PM2.5 PM2.5
Scotts Valley Ozone Ozone
Watsonville Ozone Ozone
Marina/Seaside Ozone Ozone
Monterey Peninsula Ozone Ozone
August 17-21, 2018 – High pressure continues to build over our region and onshore flow weakens. This will bring warmer, but still slightly below average, temps for coastal areas this weekend. Inland areas expect slightly warmer than average. Smoke forecasting models show smoke, from wildfires in Northern California, the Pacific Northwest and British Columbia, being transported south over the western United States. This smoke mostly stays aloft but can be diverted to lower levels affecting our local air quality. Smoke transported from these massive wildfires may degrade air quality in Monterey, San Benito, and Santa Cruz counties, possibly causing the concentration of smoke to reach unhealthful levels in some parts of the air basin. Conditions are subject to change depending on wind and fire activity. As a result, air quality (PM2.5) will be variable and unpredictable. The Air District will continue to follow the situation and issue advisories when appropriate. Please monitor our website for updates. PM2.5 may reach MODERATE range or UNHEALTHY FOR SENSITIVE GROUPS in certain areas as the wildfire smoke moves past while the high pressure system is in place. Ozone may also be affected by the smoke. Expect Ozone levels along the coast to be in the GOOD range but Pinnacles may see Ozone levels in the MODERATE range this weekend. Hollister and King City may see PM10 also in the MODERATE range.

Basin 24-hr Decision
Sat Aug 18
48-hr Forecast
Sun Aug 19
72-hr Outlook
Mon Aug 20
96-hr Trend
Tue Aug 21
North Central Coast - Coastal Zone No Burn Unfavorable Unfavorable Unfavorable
North Central Coast - Inland Zone No Burn Unfavorable Unfavorable Unfavorable
North Central Coast - San Lorenzo Valley No Burn Unfavorable Unfavorable Unfavorable
Source: PFIRS - Prescribed Fire Information Reporting System