HONOLULU, Hawaii (HawaiiNewsNow) - Trade winds will gradually increase over the next couple of days as high pressure builds northeast of the state.
Showers will be focused over windward slopes, with a few heavy showers possible as an upper trough lingers across the islands.
Trade winds will shift out of the east to east-southeast and become breezy and gusty over the weekend and into early next week.
Surf will remain below advisory levels along all shores through Friday although small, moderate-period northwest swells are expected Thursday.
Much larger, longer-period northwest swells are currently being generated by a hurricane force low off to the distant northwest.
Faster, longer-period front-running swells are expected to arrive Friday and Friday night.
Peak surf heights on Saturday may approach high surf warning levels along exposed north- and west-facing shorelines with open ocean swell wave heights nearing 12 feet.
This swell will diminish Sunday and Monday.