Advisory Possible as new NW Swell Builds
There are no marine alerts posted at this time.
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**Click directly on the images below to make them larger. Charts include: Big Island projected winds, tides, swell direction & period and expected wave heights.**
Hilo side: Wave heights are expected head high today. The best breaks could get up to a couple feet overhead on the sets.
Kona side: Wave heights knee/thigh high today from the northwest.
South: Breaks open to the trade swell could get up to shoulder/head high. Out of the south-southwest surf will start out below waist high and build to about waist high by sunset.
A northwest swell is expected to continue filling in through the day Tuesday peaking late Tuesday into early Wednesday. This swell should bring surf near advisory levels along north and west facing shores at its peak. The swell is forecast to diminish Wednesday night and Thursday. The low generating this swell will be quite deep, but the largest swells will pass north of Hawaii.
A big surge in easterly winds is expected to bring advisory conditions over most coastal waters by the middle of the week. Strong trades are expected for the second half of the week and gale warnings may be necessary for the Alenuihaha channel as the strong trades accelerate through the channel.
Small bump expected to build Tuesday out of the south-southwest and peak Wednesday around waist high.
Keep in mind, surf heights are measured on the face of the wave from trough to crest. Heights vary from beach to beach, and at the same beach, from break to break.