* WHAT...Temperatures in the middle 90s to near 103 expected. Mild lows in the upper 60s to middle 70s in the higher elevations will limit overnight recovery.
* WHERE...The East Bay and San Francisco Bay Shoreline, The Santa Clara Valley and Eastern Hills, Western Sonoma County Hills, The Santa Cruz Mountains, Interior Monterey County and the Santa Lucia Range, Most of San Benito County and the Cholame Hills in Southeast Monterey County, North Bay Interior Mountains, and Southern Salinas Valley/Arroyo Seco and Lake San Antonio.
* WHEN...From 11 AM Saturday to 10 PM PDT Sunday.
* IMPACTS...This level of heat affects anyone without effective cooling and/or adequate hydration. Impacts likely in some health systems, heat-sensitive industries and infrastructure.