The heavy rainfall is likely to cause significant flash flooding and mudslides, especially in Kauai County and parts of the Big Island. Coastal areas are at risk of storm surges of 2 to 4 feet (0.6 to 1.2 metres), and high winds may lead to power outages, road closures, and disruptions to water services. Residents in flood-prone areas are advised to move to safer locations. The storm's impact is compounded by the potential for tornadoes and hazardous surf conditions, posing additional risks to life and property.