Report Date: Mon. January 9, 2012


The tranquil weather pattern is forecast to persist across most of the main Hawaiian island chain through mid-week. Therefore, expect the light to moderate trade wind flow to focus low clouds and light trade showers primarily along windward and mauka sections of the aloha state. Our winds will shift out of the northeast with a slight increase in rainfall starting Wednesday night and continuing through Thursday.


The active, north Pacific swell pattern will continue through most of the new work week. The current northwest swell is 7 to 8 feet with a period of around 14 seconds at the Waimea bay buoy. The high surf advisory for north and west facing shores of most of the smaller islands remains in effect through this morning. A new west northwest swell arriving later tonight is expected to boost surf heights near the high surf advisory threshold along north and west facing shores of most of the smaller islands on Tuesday. A larger reinforcing west northwest swell is expected to fill in early Wednesday. So, expect elevated surf to require a high surf advisory for most north and west facing shores, including portions of the leeward Big Island, from Wednesday morning through Thursday afternoon.

The small craft advisory /sca/ that was in effect for elevated seas has been cancelled this morning, since seas have decreased overnight due to the declining northwest swell. Based on the latest forecast, seas will increase to the SCA criteria starting Wednesday morning over parts of the Hawaiian coastal waters due to the arrival of the new west northwest swell. These potentially hazardous seas will likely continue through Wednesday night.


High surf advisory until noon HST today for north and west facing shores of Niihau, Kauai, Oahu, and Molokai, and for north facing shores of Maui.


National Weather Service