HONOLULU (HawaiiNewsNow) - A strong high pressure area could bring strong tradewinds -- with gusts to 50 mph -- to the state on Friday and Saturday.
The National Weather Service has issued a Wind Advisory statewide from 6 a.m. Friday to 6 p.m. Saturday.
Strong high pressure to the north of the islands will combine with a very stable atmosphere to produce strong and gusty trade winds at 15 to 30 miles per hour, with gusts to 50 miles per hour. Even stronger gusts to 60 miles per hour are possible over the summit of Haleakala.
Winds will be strongest over mountain ridges and high terrain, as well as areas that are downslope of mountains. On Oahu, many of the valleys, including Kalihi, Pauoa, Nuuanu and Manoa, will be prone to having stronger winds.
Forecasters said winds this strong will blow around loose objects and result in downed tree branches. Localized power outages will also be possible.
Motorists should use extra caution, especially while driving higher profile vehicles such as trucks and larger SUV's.
For mariners, a Gale Warning will also take effect Friday for the usually windier waters around Maui County and the Big Island, and a Small Craft Advisory will be in effect for remaining coastal waters.