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NNW Swell Peaks Today for Big Island

December 20, 2016, 1:31 AM HST
* Updated December 19, 9:25 PM
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Image: James Grenz

Alerts (as of 1:00 a.m.)

Small Craft Advisory: East winds 20 to 25 knots in our windier coastal waters and channels through 6 p.m. Wednesday.

Check our breaking news section for any urgent weather alerts or updates to the weather alerts listed above.

**Click directly on the images below to make them larger. Charts include: Big Island projected winds, tides, swell direction & period and expected wave heights.**

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Big Island Surf Forecast

Hilo side: Wave heights are forecast to be shoulder high to a couple feet overhead today for the best breaks.

Kona side: Wave heights are expected to be knee/thigh high today with sets up to waist high for the best breaks.

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South: Wave heights are expected to be knee/thigh high today with sets up to waist high for the best breaks.

Our current NNW swell is forecast to peak Tuesday night and Wednesday, with highest surf near advisory levels along exposed N (and some W) facing shores. This swell should ease through next weekend. Unfortunately, the Kona side will be heavily shadowed from this swell.

A trade wind swell will be building in the next couple of days. Surf, however, is expected to stay below advisory level until maybe late in the upcoming weekend.

Nothing significant is expected out of the SPAC in the near future.

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.  

**Click here for your detailed Big Island weather report.**

Image: NOAA

Image: NOAA

Image: NOAA

Image: NOAA

Image: NOAA

Image: NOAA

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