The National Weather Service in Honolulu has extended a wind advisory for the entire state until 6 p.m. Monday.
Forecasters expect east-northeast trade winds up to 35 mph, with localized gusts of more than 50 mph. They say winds this strong can bring down tree branches, cause local power outages and make driving difficult, especially in high-profile vehicles on bridges and overpasses.
High winds caused power outages Sunday in East Honolulu and in Ahualoa on the Big Island.
Police contra-flowed traffic on Sand Island Access Road late Sunday, while Hawaiian Electric crews repaired a leaning power pole.
A large tree fell onto four vehicles in the parking lot of the Pali Highway Longs Drugs Store and Safeway Sunday afternoon. Firefighters said no one was hurt.
High pressure north of the islands will cause strong trades across Hawaii through Monday evening, and possibly all week, according to forecasters.
The strong trades have also kicked up gale warnings and small craft advisories for mariners, along with a high surf advisory for several east-facing shores.
A high surf advisory is also in effect for several north and west shores due to a large northwest swell.