The anticipated heavy rains and flooding pose significant risks to drivers, especially on highways like US-101 and I-405. Wet roads can lead to hydroplaning, reduced visibility, and debris-blocked lanes, increasing the likelihood of rear-end collisions and multi-car pileups. Residents in areas recently affected by wildfires face heightened risks of mudslides and debris flows. The combination of these hazards underscores the importance of cautious driving and preparedness during the storm season.