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SW Builds Today, NW Builds Friday

May 21, 2015, 1:38 AM HST
* Updated May 20, 11:48 PM
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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.**

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Screen Shot 2015-05-20 at 8.27.05 PMBig Island Surf Forecast

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Hilo side: Knee/waist high surf is expected today. The best focal points for the trade swell could see shoulder high waves on the sets.

Kona side: Wave heights of about waist high are expected for southerly exposures. Best breaks could get up to chest high on the sets by sundown.

South: Wave heights waist/chest high today building to shoulder high by sundown. Trade swell is around knee/waist/chest high.

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Screen Shot 2015-05-20 at 8.27.12 PMStorm activity in the Tasman Sea is expected to bring us a southwest swell today. The swell should build Thursday, peak Friday and and slowly ease over the weekend. Another slightly larger swell is possible on Saturday which should keep wave heights steady. That swell is expected to peak early next week.

Our current northwest pulse lingers today with another swell on it’s heels for the weekend. This new swell is expected to begin building on Friday.

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 / NWS

Image: NOAA / NWS

Image: NOAA / NWS

Image: NOAA / NWS

Image: NOAA / NWS

Image: NOAA / NWS

Image: NOAA / NWS

Image: NOAA / NWS

Image: NOAA / NWS

Image: NOAA / NWS

Image: NOAA / NWS

Image: NOAA / NWS

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