Heat Advisory Issued Across Bay Area as Temperatures Approach 100 Degrees

The San Francisco Bay Area is experiencing a significant heat wave with a Heat Advisory in effect until 7 p.m. Tuesday, covering the East Bay, San Francisco Bay shoreline, Santa Clara Valley, and surrounding areas. Temperatures are expected to reach up to 100 degrees in some East Bay locations, with mid to upper 90s common in the bay shoreline and Santa Clara Valley, and highs in the 70s to mid-80s along the coast. Residents are urged to stay hydrated, seek air conditioning, limit outdoor activities, and conserve energy during peak hours from 4 p.m. to 9 p.m., as utilities like PG&E have called for energy conservation on this "Smart Day." Following the heat, rain chances will increase late Tuesday night through Wednesday, with isolated thunderstorms possible, though dry lightning could pose wildfire risks in some areas. The National Weather Service warns of potential health impacts from the heat and elevated ozone levels, advising vulnerable populations to take extra precautions. By Thursday, cooler and more seasonal weather is expected as rain moves east of the Bay Area and skies clear.