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SSW Builds Today, NW Slowly Fading

April 21, 2016, 1:32 AM HST
* Updated April 20, 9:47 PM
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Image: Bradda Skibs

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

A Small Craft Advisory is posted for the ʻAlenuihāhā channel through 6 p.m. Thursday and could be extended if conditions persist.

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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Screen Shot 2016-04-20 at 7.52.53 PMBig Island Surf Forecast

Hilo side: Wave heights for spots exposed to the swell are expected to be shoulder/head high today. Spots without direct exposure to the swell will be smaller.

Kona side: Wave heights are expected to be waist/chest high today. The best breaks could get up to shoulder high from time to time.

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South: Wave heights are expected to be waist/chest high today out of the northwest. South-southwest will build up to shoulder high by sunset.

Screen Shot 2016-04-20 at 7.52.59 PMOur current northwest swell is expected to slowly fade Thursday and Friday. A reinforcement is expected to move in Friday and Saturday up to waist high at the best exposures.

A new south-southwest is expected to build in Thursday and peak Friday up to shoulder/head high at the best breaks. Another smaller south-southwest is expected for the weekend but not expected to increase wave heights over what the fading swell will already be providing.

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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