High surf, high wind advisories in effect
The National Weather Service has issued a high wind warning over and downwind of the Kohala mountains on Hawai‘i Island.
A high wind advisory has been issued for the summits of Moana Loa and Moana Kea beginning this evening, as well.
Strong high pressure north of the state will drift slowly eastward through Friday. The high will drive strong and gusty trade winds that will be accelerated over and downwind of island terrain.
Damaging winds may blow down trees and power lines and damage roofs. Power outages are possible. Travel will be difficult, especially for high profile vehicles.
The National Weather Service also issued a high surf advisory for east-facing shores until 6 a.m. Saturday.
Large fetch area upstream of the islands, generated by strong persistent trade winds, will produce advisory level surf along east facing shores over the next couple of days.
Surf is expected to build to 7 to 10 feet tonight and 8 to 12 feet Thursday. Projected impacts are considered moderate – strong breaking waves and strong currents will make swimming dangerous.