The Big Island and Maui are at risk of flash flooding, particularly in windward and southeast areas. Strong winds may cause localized damage, especially in typical windy zones. Coastal areas face high surf conditions, with waves potentially exceeding 20 feet in some locations. Fire weather conditions are moderate in drier leeward areas of Kauai and Maui County, though rainfall may mitigate risks. Aviation and marine activities are also impacted, with turbulence and rough seas expected.