The flash flood watch poses risks to flood-prone areas, low-water crossings, and urban locations with poor drainage. Recent wildfire burn scars are particularly vulnerable to flash flooding due to compromised ground stability. Motorists traveling on major highways, including Interstate 17 and routes toward Los Angeles and Las Vegas, should expect hazardous driving conditions. Lightning and heavy rain may also disrupt outdoor activities and increase the risk of localized flooding. Residents in affected areas are advised to remain vigilant and avoid flooded roadways, as even shallow water can pose significant dangers.