Record Heatwave Drives Wildfires, Evacuations Across California, Pacific Northwest

The western U.S. is experiencing an intense heat wave affecting Washington, Oregon, Southern California, Nevada, and Arizona, with temperatures reaching dangerously high levels and leading to hospitalizations. Approximately 1.2 million people face significant heat risk, particularly in Tucson, Arizona, and Southern California's inland areas, while Portland, Oregon, recorded a record high for August 22. The heat wave has exacerbated wildfire risks, with Red Flag Warnings issued across Southern California, including Los Angeles County, where fires sparked by lightning have ignited in the Angeles National Forest. The Pickett Fire in Napa County has expanded rapidly, forcing evacuations near Calistoga, and remains only partially contained amid extreme fire conditions worsened by the heat. Authorities urge residents to take precautions by staying indoors during peak heat, staying hydrated, and checking on vulnerable populations, as the heat is expected to persist through the weekend before a gradual cooling trend begins. Fire officials highlight the potential for rapid fire growth due to dried fuels and sporadic lightning, emphasizing the ongoing elevated danger in affected regions.