The storm poses significant risks of flash flooding, particularly in areas with recent wildfire burn scars, which are prone to mudslides and debris flows. Central and Southern California, as well as parts of the Southwest, including Arizona, Utah, and New Mexico, are expected to experience the heaviest impacts. The heavy rain could disrupt travel and lead to localized flooding in urban and low-lying areas. While the storm may help alleviate drought conditions in the region, the immediate risks to property and safety remain high.