The National Hurricane Center has issued a Hurricane Warning for Kauai County and a Tropical Storm Warning for Oahu. Kauai could experience rainfall of 4-8 inches, with isolated totals reaching 24 inches, while Oahu may see 2-5 inches, with totals up to 10 inches. These conditions could lead to significant flash flooding, mudslides, and coastal flooding. Dangerous surf and rip currents are also expected, with storm surges raising water levels by 2-4 feet in Kauai County and up to 1 foot on Oahu. Tornadoes are possible near Kauai and Niihau, with a few also possible across other parts of Hawaii.