Overview

• Santa Clara Valley is forecast to be unhealthy for sensitive groups, with the inland East Bay ranging from moderate to unhealthy and the South Central Bay slightly better.
• Coastal and central Bay areas are expected to see moderate levels of fine particles, where breezes typically keep pollution lower.
• The National Weather Service expects highs near 100°F in Santa Rosa, Livermore, Concord and Walnut Creek, making Tuesday the warmest day of the week.
• Air District officials urge residents to limit driving, carpool or use public transit to reduce emissions and protect children, older adults and people with asthma or heart conditions.
• A late-Tuesday into Wednesday weather shift could bring showers, isolated thunderstorms and gusty winds that may help clear the air.