The Flood Watch covers all major Hawaiian islands, including areas such as Kauai, Oahu, Maui, and the Big Island. Heavy rainfall and thunderstorms may lead to flash flooding, especially in low-lying and flood-prone areas. Slow-moving rain cells could result in significant localized flooding. Additionally, strong thunderstorms may produce damaging gusty winds, particularly near the surface trough. Mountainous regions may experience obscured visibility, and moderate icing is possible at higher altitudes. Travelers and residents should remain vigilant as conditions may change rapidly.