Warning Level Swell to Build This Weekend

Image: James Grenz

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

High Surf Advisory: North facing shores of the Big Island through 6 p.m. Friday.

Small Craft Advisory: Through 6 a.m. Friday for winds up to 10 knots and seas from 6 to 11 feet.

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.**

Big Island Surf Forecast

Hilo: Wave heights are expected to be head high to a few feet overhead today.

Kona: Wave heights are expected to be around knee / waist high today with the best exposures getting tummy / chest high waves on the sets.

South: Wave heights are expected to be knee / waist high today with the best exposures getting tummy / chest high waves on the sets.

Our current north-northwest swell is slowly trending down Friday. A new, large, north-northwest is expected to build Saturday night and Sunday producing warning level surf for most north facing shores and some west facing shores. This swell should begin to fade on Monday with an even larger north-northwest expected to fill in around the middle of the week.

Surf on east-facing shores continues to ease.

A small south swell is currently impacting some southern shores and expected to drop over the weekend.

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