Kauai County is expected to experience damaging hurricane conditions tonight, with the strongest winds affecting mountainous and coastal areas. Large waves and coastal flooding are anticipated, posing risks to low-lying regions. Heavy rainfall is forecast across the Hawaiian Islands through Wednesday, increasing the likelihood of flash flooding and mudslides, particularly in Kauai County and parts of the Big Island. Oahu may experience tropical storm conditions, including strong wind gusts capable of causing tree damage and power outages. Dangerous surf and rip currents will persist across the islands for several days.