A weakening cold front will move across Oahu and Maui County today, then reach the Big Island late this afternoon into this evening.
Scattered showers will continue today and tonight, but rainfall amounts will be generally light. High pressure will move over the islands Wednesday through Thursday, with light winds and mainly dry weather prevailing. The high will lift to the north Friday through the weekend, allowing trade winds to return across the islands.
A broad surface low with a captured fetch of gale force winds aimed at the main Hawaiian islands is sending a large northwest swell toward the state. A High Surf Warning has been issued starting late this morning for rising surf along most north and west facing shores of the smaller islands. This swell is expected to peak late Tuesday night and early Wednesday, before gradually lowering from Thursday into this weekend.
HIGH SURF WARNING from 10 a.m. this morning to 6 p.m. Wednesday for north and west facing shores of Niihau, Kauai, Oahu and Molokai, and north-facing shores of Maui.
Wind Advisory until 6 a.m. Wednesday for Big Island summits.
Small Craft Advisory for most Hawaii channel and coastal waters due to large open ocean swell and strong winds associated with the passing cold front.