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WNW Swell Builds Today for Parts of Big Island

January 18, 2017, 7:49 AM HST
* Updated January 18, 7:53 AM
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Image: James Grenz

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

Small Craft Advisory: All island waters through 6 a.m. Thursday.

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 head high or more today for the best exposures.

Kona side: Wave heights are expected to be knee/waist high today with waves up to a little bit bigger on the sets.

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South: Wave heights are expected to be knee/waist high today with waves up to a little bit bigger on the sets.

A new elevated west-northwest swell is slated to build through Wednesday and peak Thursday up to double overhead at the best exposures. The swell starts easing into Friday but a reinforcement is right behind it. The new swell is expected to build Friday and peak late that day, then hold into Saturday morning and ease late Saturday into Sunday.

Saturday and Saturday night a High Surf Advisory is forecast for east facing shores.

A small southwest swell is forecast for the 22nd through the 24th.

 

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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