Maui County faces risks of flash flooding, rapidly rising water in flood-prone areas, and power outages. Rainfall totals of up to 305 mm (12 inches) could lead to localized flooding and mudslides. Coastal areas may experience dangerous surf and erosion, with waves reaching 4.6 m (15 feet). Vulnerable communities, particularly those impacted by earlier storms, are at heightened risk. Residents are advised to prepare for extended power outages and road closures.