Tradewinds are expected to return to the Hawaiian Islands and strengthen through the week, while surf is expected to rise to advisory levels by late today, forecasters said.

The National Weather Service says a large northwest swell is expected to peak tonight to well above advisory levels before subsiding Wednesday.

Surf along north shores will rise to 15 to 20 feet by late today. Surf along west shores will build to 10 to 14 feet by late today.

Surf along east shores will be 3 to 5 feet today. Surf along south shores will remain 1 to 2 feet through today.

Forecasters said high pressure building in from the northwest will push trades across the isles, with a gradual increase in clouds and showers for windward areas over the next 24 hours, as well as increasing wind speeds.

Winds likely could exceed advisory thresholds for parts of the state and might even approach high-wind warning thresholds for some areas Friday through Sunday.