The cool and dry weather of the last few days is shifting to a wet pattern that could include some heavy rain and thunderstorms thanks to a cold front. Monday will be a transitional day with a few showers mainly for Kauai as the front approaches from the northwest, while the rest of the state will have mostly clear skies and increasing haze with light winds from the south. Rain is likely with a chance of thunderstorms for the smaller islands Tuesday, starting with the Garden Isle and moving down the island chain.
Drier westerly winds are expected to follow the front, which may stall just east of the Big Island. However, there's a high degree of uncertainty for the later half of the week. For now, it looks like it will be a little wet with light winds.
Surf is heading upward a bit for north shores at 8 to 12 feet and west shores at 5 to 8. Another reinforcing swell could boost wave heights Tuesday and Wednesday. For now, no marine warnings are posted.