Hurricane Douglas is forecast to sweep through Hawaii as a tropical storm or hurricane this weekend, where it could produce flash flooding, strong winds and pounding surf.

The Central Pacific Hurricane Center has issued a hurricane watch for Oahu in addition to the Big Island of Hawaii and for Maui County, including Maui, Lanai, Molokai and Kahoolawe. Hurricane conditions are possible in this area Saturday night into Sunday, with tropical storm conditions possible as soon as Saturday evening.

After peaking at Category 4 intensity, Douglas is now slowly weakening as it churns several hundred miles east-southeast of Hilo, Hawaii, moving quickly west-northwest.