The National Weather Service issued a high surf advisory and gale warning for Hawaiian shorelines and waters because of a high-pressure system passing north of the state.

The high surf advisory is for the east shores of Kauai, Oahu, Molokai, Maui and Hawaii island, with waves of six to 10 feet expected. It will remain in effect until 6 a.m. Wednesday. 

The gale warning will remain in effect until 6 a.m. Tuesday during which east winds of 35 to 40 mph, with higher gusts, are expected.

The weather service says the high-pressure system will bring strong tradewinds through Tuesday and will focus clouds and showers over windward slopes and coasts, mostly during mornings and evenings. Some showers will also spread to leeward areas.