Scotts Valley, CA or Santa Cruz, CA Air Quality Index


Air Quality Forecast
Today Tomorrow
Air Quality Index (AQI)
Moderate Moderate
Health Message: Unusually sensitive people should consider reducing prolonged or heavy exertion.
Air Quality Index (AQI)
Good Good
Health Message: None
AQI - Pollutant Details
Ozone
Good
Good
Particles (PM2.5)
Moderate
Moderate
Ozone
Good
Good
Particles (PM2.5)
Good
Good
Forecast Discussion: November 15 to November 21, 2017 – A cold front is following a moist southwest flow across the San Francisco Bay area where they will meet with a upper level jetty with maximum winds and a heavy moisture laden atmosphere. This will bring rapid heavy rain to the North Bay Area this afternoon before slowly moving southward to the Monterey Bay area. This rapid heavy rain is forecast to produce 0.5 to 1 inches for most of the Monterey Bay urban areas, 1-2 inches for Santa Cruz and 2-4 inches for Santa Cruz Mountains and Santa Lucia Mountains with isolated higher amounts possible. This heavy and rapid rainfall can be problematic (including increase chance of flash floods, mudslides) for the burn scars of recent wildfire areas of Santa Rosa, Napa Valley and Santa Cruz Mountains. As this strong system moves southward into our area expect rainfall to touch down in Santa Cruz, San Benito and Monterey Counties Wednesday evening through Thursday, ending Thursday night. Southerly winds will increase ahead of the front causing possible gusts of 40-50 mph , along the coast and higher elevations Wednesday and into Thursday. Friday and Saturday will be mostly sunny and clear with chilly nights. However, another system moves into the area Saturday night bringing clouds in Sunday and another chance of rain Sunday night, Monday and residual slight chance of rain Monday night through to Tuesday. With rain washing and wind blowing away the problematic smokey, San Lorenzo Valley air, SLV residents will get a brief respite from normal winter elevated PM 2.5 conditions. During this period the AQI for all parameters for most of the District should remain in the GOOD category. However, between these systems, the cold nights on Friday and Saturday, will undoubtedly increase the use of wood-stoves in the San Lorenzo Valley which could increase PM2.5 levels to MODERATE category before the next lesser rain system comes in late Sunday night or Monday.
Past Air Quality Map
Current Hourly Air Quality Index Map
AQI: Good AQI: Moderate AQI: Unhealthy for Sensitive Groups AQI: Unhealthy AQI: Very Unhealthy AQI: Hazardous


Today's Air Quality Forecast
AQI: Good AQI: Moderate AQI: Unhealthy for Sensitive Groups AQI: Unhealthy AQI: Very Unhealthy AQI: Hazardous


Today's Air Quality Timed Animation
AQI: Good AQI: Moderate AQI: Unhealthy for Sensitive Groups AQI: Unhealthy AQI: Very Unhealthy AQI: Hazardous


Script courtesy of  Michael Holden of Relay Weather. Data courtesy of Airnow.gov