Kauaʻi and Niʻihau are expected to experience hurricane conditions starting this afternoon or evening, with wind speeds potentially 30% stronger in elevated areas. Oʻahu is forecasted to face tropical storm conditions during the same period. Rainfall could reach 6-10 inches on Kauaʻi, with isolated totals of 16 inches, while Oʻahu and Maui County may see 4-8 inches, with isolated totals of 10 inches. The Big Island could receive 4-8 inches, with isolated totals of 12 inches. Flash flooding and mudslides are significant risks, particularly in Kauaʻi County and parts of the Big Island. Storm surge could cause flooding of 2-4 feet in Kauaʻi County and up to 1 foot in Oʻahu. Tornadoes and waterspouts are also possible near Kauaʻi and Niʻihau.