Tropical Storm Hilary brought heavy rainfall to arid regions of Mexico before drenching Southern California, causing flooding and mudslides. After hitting the Baja California Peninsula in Mexico, the storm moved through Tijuana, affecting makeshift hillside homes near the U.S. border. Hilary marked the first tropical storm to impact Southern California in 84 years, delivering significant rainfall to areas like Palm Springs. The storm was downgraded to a post-tropical storm but continued to pose a threat with the potential for dangerous flooding. Flash floods hit Los Angeles and Ventura Counties, while the Los Angeles Unified School District and other regional schools were closed.