A severe heat wave is sweeping across California and the Southwest, with temperatures set to break records in several regions. Southern California is bracing for triple-digit highs, and cooling centers are opening to assist residents during this extreme weather. The National Weather Service has issued heat advisories, warning millions about the dangers of dangerously hot conditions. Cities in the Bay Area and beyond are experiencing unprecedented March temperatures, with forecasts indicating a continuation of this unusual heat trend. As the region prepares for record-breaking warmth, officials are urging caution and preventive measures, especially for vulnerable populations, including those unhoused and outdoor workers.