# San Francisco heat wave preparedness > Live situation record from CLSTR: https://clstr.news/situations/san-francisco-heat-wave-preparedness > Updated: 2026-07-30T00:35:35.000Z. Sources: 4. Developments: 2. City officials warned in late July that San Francisco’s infrastructure and public‑health systems were ill‑equipped for increasingly frequent extreme heat events, citing gaps in cooling centers, housing conditions, and emergency response plans. The warning highlighted the city’s vulnerability despite its “Fog City” reputation. A week later, Pacific Gas & Electric outlined its operational response to the same heat wave, preparing crews and equipment for projected temperatures above 100 °F across inland California. PG&E’s actions included pre‑positioning resources, maintaining fire‑suppression technology, and urging customers to stay informed about possible outages. The utility’s involvement was underscored by two fire incidents in San Francisco—an underground vault fire and a house fire—both quickly contained with assistance from fire services and the Red Cross. Together, the snapshots trace a shift from municipal concern about preparedness to utility‑level mitigation and on‑ground incident response during the heat wave. ## Timeline ### 2026-07-30: Pacific Gas & Electric Prepares for Heat Wave as San Francisco Fires Highlight Wildfire Risks PG&E readies for a July‑August 2026 heat wave in California, warning of heightened wildfire risk, while a vault fire in San Francisco’s Upper Haight and a house fire in Visitacion Valley displaced six people, a 2 sources. https://clstr.news/cluster/pacific-gas-electric-prepares-for-heat-wave-as-san-francisco-fires-highlight-wildfire-risks ### 2026-07-22: San Francisco officials say city is unprepared for rising heat waves San Francisco officials say the city lacks adequate infrastructure and plans to protect residents from increasingly frequent heat waves. 2 sources. https://clstr.news/cluster/san-francisco-officials-say-city-is-unprepared-for-rising-heat-waves --- Cite as: San Francisco heat wave preparedness. CLSTR, https://clstr.news/situations/san-francisco-heat-wave-preparedness