The twin storms are expected to impact southern Arizona, including Tucson and surrounding areas. Heavy rainfall could lead to localized flooding, particularly in low-lying regions and areas with poor drainage. Travelers and outdoor enthusiasts planning activities during the Halloween weekend should be cautious, as wet conditions may create hazardous roadways and disrupt events. While the storms are not expected to bring severe winds or other extreme conditions, the risk of flooding remains a primary concern for residents and local authorities.