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Pre-Season NNW Swell Fills in, Largely Blocked

August 19, 2016, 1:47 AM HST
* Updated August 18, 10:24 PM
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Image: James Grenz

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

A Small Craft Advisory is posted for our usual windy areas through 6 a.m. Saturday for east winds from 20 to 25 knots.

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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ARTICLE CONTINUES BELOW AD

 

ARTICLE CONTINUES BELOW AD

Screen Shot 2016-08-18 at 6.09.09 PMBig Island Surf Forecast

Hilo side: Wave heights for spots exposed to the trade swell are expected to be waist/shoulder high today.

Kona side: Wave heights are expected to be knee/thigh high today, some spots could get up to waist high on the sets at the best exposures.

ARTICLE CONTINUES BELOW AD

South: Wave heights are expected to be knee/thigh high today, some spots could get up to waist high on the sets at the best exposures. Spots catching trade swell could get up to waist/shoulder high.

Screen Shot 2016-08-18 at 6.09.03 PMOur current south-southwest swell is slowly fading through the weekend.

Trade swell will hold for the next few days with onshore conditions for windward sides.

Pre-season north-northwest swell is expected for Friday and Saturday. The Big Island will be heavily shadowed from this swell.

Models are showing activity in the West Pacific so there is potential for swell energy out of that region in the 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

Image: NOAA

Image: NOAA

Image: NOAA

Image: NOAA

Image: NOAA

Image: NOAA

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